# DC/DC POL Converter, Adjustable, Buck, 8 V to 16 V in, 3.3V to 5 V out, 4 A out, 400 kHz, LGA-30
**URL**: https://novapart.co/products/MYMGA5R04RELA5RA/dc-pol-converter-adjustable-buck-8-v-to-16-in-33v
**SKU**: MYMGA5R04RELA5RA
**Manufacturer**: MURATA POWER SOLUTIONS
**Category**: Power & Line Protection || Power Supplies || DC / DC Converters || DC / DC Non Isolated Board Mount Converters - Adjustable Output
**Price**: €6.6100
**Stock**: 10+
## Specifications
| Parameter | Value |
|---|---|
| Svhc | No SVHC (07-Jul-2017) |
| Depth | 9mm |
| Width | 10.5mm |
| Height | 5.6mm |
| Topology | Synchronous Buck (Step Down) |
| No. Of Pins | 30Pins |
| Product Range | MonoBK MYMGA Series |
| No. Of Outputs | 1 Output |
| Output Current | 4A |
| Output Power Max | 20W |
| Input Voltage Max | 16V |
| Input Voltage Min | 8V |
| Output Current Max | 4A |
| Output Voltage Max | 5V |
| Output Voltage Min | 3.3V |
| Switching Frequency | 400kHz |
| Input Voltage Dc Max | 16V |
| Input Voltage Dc Min | 8V |
| Dc / Dc Converter Type | Step Down, Module |
| Dc / Dc Converter Ic Case | LGA |
| Operating Temperature Max | 125°C |
| Power Supply Applications | ITE & Industrial |
| Dc / Dc Converter Output Type | Adjustable |
## Datasheet
📄 [Download PDF](https://novapart.co/datasheet/farnell:3501730RL/)
**MYMGA5R04RELA5RA MonoBlock type POL, 4A DC-DC converter series for primary**
## **PRODUCT OVERVIEW**
## **Typical unit**
## **FEATURES**
- ■Input voltage ranges from 8.0-16.0Vdc (Absolute maximum input voltage : 40.0Vdc)
- ■Programmable output voltage from 3.3-5.0Vdc
- ■Up to 4 Amps of output current
- ■Quick response to load change
- ■Ultra small surface mount package
- 10.5 x 9.0 x 5.5mm
- ■High efficiency of 94%(12.0Vin/5.0Vout/4.0Aout)
- ■Outstanding thermal derating performance
- ■Over current protection
- ■On/Off control (Positive logic)
The **MYMGA5R04RELA5RA** are miniature MonoBlock type non-isolated Point-of-Load (PoL) DC-DC power converters for embedded applications. The tiny form factor measures only 10.5 x 9.0 x 5.5 mm. Applications include powering FPGA/CPU’s, datacom/telecom, Distributed Bus Architectures (DBA), programmable logic and mixed voltage systems.
The converters have input voltage ranges of 8.0 to 16.0Vdc (absolute maximum input voltage : 40.0Vdc) and a maximum output current of 4 Amps. Based on a fixed frequency synchronous buck converter switching topology, this high power conversion efficient PoL module features programmable output voltage 3.3 to 5.0V , On/Off control and Power Good signal output.
These converters also include under voltage lock out (UVLO), output short circuit protection and over-current protection.
- ■Power Good signal
- ■RoHS-6 hazardous substance compliance
## **SIMPLIFIED APPLICATION**
## MYMGA5R04RELA
**==> picture [437 x 166] intentionally omitted <==**
**----- Start of picture text -----**
Vin Vout
Sense
ON/OFF RL
Vin 510kΩ Power Trim C2
Vcc Good GND Rtrim
C1
100kΩ
C1：10μF/50V × 2pcs
C2：22μF/10V × 5pcs
**----- End of picture text -----**
(Typical topology is shown. Murata recommends an external fuse.)
**http://www.murata.com/products/power**
Export Control Code : X0863 Document No : DC_R180005
MYMGA5R04RELA5RA A01 Page 1 of 16
**MYMGA5R04RELA5RA MonoBlock type POL, 4A DC-DC converter series for primary**
|PART NUMBER|OUTPUT
~~Iout~~|OUTPUT
~~Iout~~|OUTPUT
~~Iout~~|OUTPUT
~~Iout~~|OUTPUT
~~Iout~~|OUTPUT
~~Iout~~|INPUT|INPUT|INPUT|INPUT|Efficiency
(%)|ON/OFF|PACKAGE|
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
||Vout
(Vdc)|~~Iout~~
(Amps,max
~~)~~|Power
(Watts)|R/N typ
(% of Vout)|Regulation(max)||Vin nom
(Vdc)|Range
(Vdc)|Iin no load
(mA)|Iin full load
(A)|||(mm)|
||||||Line(%)|Load(%)||||||||
|MYMGA5R04RELA5RA|3.3-5.0
(nom:5.0V)|4
~~)~~|20|1.0
(at 4A)|±1.0|±1.0|12|8-16|0.5|1.78|94|Yes
(Positive)|10.5*9.0*5.5|
|MYMGA5R04RELA5RAD|MYMGA5R04RELA5RAD
3.3-5.0
(nom:5.0V)|4|20|1.0
(at 4A)|±1.0|±1.0|12|8-16|0.5|1.78|94|Yes
(Positive)|10.5*9.0*5.5|
1.Please refer to the Part Number Structure for additional ordering information and options.
2.All specifications are at nominal line voltage, Vout=nominal and full load, +25degC unless otherwise noted. Output capacitors are 22uF*5 ceramic. Input cap is 10 uF*2 ceramic and plenty electrolytic capacitors. See detailed specifications. I/O caps are necessary for our test equipment.
3.Use adequate ground plane and copper thickness adjacent to the converter.
## **PART NUMBER STRUCTURE**
**==> picture [487 x 155] intentionally omitted <==**
**----- Start of picture text -----**
MY MGA 5R0 4R E L A 5 R A D
Murata products
Terminal and
Maximum Output Output Number Internal Code
Current in Amps L:LGA,1 Output
4R:4.0A
Dimention L
Series Name A:10 ≦ D ＜ 11 Tape & Reel
Output Voltage
Range Input Voltage Range
5R0:(3.3-5.0Vdc) E:8.0-16.0V Height Blank:standard quantity
5.0 ≦ T ＜ 6.0 D:small quantity
**----- End of picture text -----**
## **Product Marking**
Because of the small size of these products, the product marking contains a character-reduced code to indicate the model number and manufacturing date code. Not all items on the marking are always used. Please note that the marking differs from the product photograph. Here is the layout of the Marking .
|**Part Number**|**Product Code**|
|---|---|
|MYMGA5R04RELA5RA|MGA5R04RELA|
|MYMGA5R04RELA5RAD|MGA5R04RELA|
**Layout Codes** （ **reference** ） C[M] MGA5R04RELA CM 1Pin Marking MGA5R04RELA Product code (Please see product code table beside) ~~a].~~ internal manufacturing data code
**http://www.murata.com/products/power**
MYMGA5R04RELA5RA A01 Page 2 of 16
**MYMGA5R04RELA5RA MonoBlock type POL, 4A DC-DC converter series for primary**
|**ABSOLUTE MAXIMUM RATINGS**|**Conditions**|**Minimum**|**Typical**|**Maximum**|**Units**|
|---|---|---|---|---|---|
|Input Voltage||-0.3|-|40|Vdc|
|ON/OFF Pin|Power on, referred to -Vin|-0.3||Vin-1.5|Vdc|
|PGOOD/Trim Pins|Power on, referred to -Vin||Source ONLY|||
|Output Current See Note2|Current-limited, no damage, short-circuitprotected|0||4|A|
|Storage Temperature Range|Vin = Zero (nopower)|-40||85|°C|
|Absolute maximums are stress ratings. Exposure of devices to greater than any of these conditions may adversely affect long-term reliability. Proper operation under
conditions other than those listed in the Performance/Functional Specifications Table is not implied or recommended.||||||
|**INPUT**|**Conditions**|**Minimum**|**Typical**|**Maximum**|**Units**|
|OperatingVoltage Range|Note9|8|12|16|Vdc|
|Start-upthreshold|Risinginput voltage|3.5|4|4.5|Vdc|
|Undervoltage shutdown|Note 13|2.6|3.1|3.6|Vdc|
|Internal Filter Type|||Capacitive|||
|Input current||||||
|Full Load Conditions|Vin = 12V, Iout = 4A||1.78||A|
|Low Line|Vin = 8V, Iout = 4A||2.63||A|
|No Load Current|Iout = minimum, unit = ON||0.5||mA|
|Shut-Down Mode Input Current|Note 14||10||uA|
|**GENERAL and SAFETY**|**Conditions**|**Minimum**|**Typical**|**Maximum**|**Units**|
|Efficiency|Vin =12.0V, Vout = 5.0V, Io=4A||94||%|
|Safety|Certified to UL-60950-1, CSA-C22.2 No. 60950-1,
IEC/EN60950-1, 2nd edition(pending)|Pending||||
|Calculated MTBF (Note 3)|Ta=40degC,Vin=nom,Vo=nom,Io=50%|2,249,363|||Hours|
|**DYNAMIC CHARACTERISTICS**|**Conditions**|**Minimum**|**Typical**|**Maximum**|**Units**|
|Fixed SwitchingFrequency|Vin =12.0V, Vout = 5.0V, Io=4A||400||kHz|
|StartupTime (Vin ON)|Vout=nominal (Vin On to 90% of Vo)|see the graph|||mS|
|StartupTime (Remote ON)|Vout=nominal (Remote On to 90% of Vo)||||mS|
|Dynamic Load Response|(50-100% load step, di/dt)||2.5||A/µSec|
|Dynamic Load Peak Deviation|same as above||+/-3%||Voset|
|**FUNCTIONS**|**Conditions**|**Minimum**|**Typical**|**Maximum**|**Units**|
|Remote On/Off Control (Note 4)||||||
|Logic||||||
|ON state|ON = +1.8Vmin. to +Vin-1.5V max. or leve open|1.5||6|V|
|OFF state|OFF =-0.3V to +0.6V.max.|-0.3||0.6|V|
|Control Current|Open collector/drain|||-|mA|
|Power-Good Output(Pulled upto 5.0Vreg(TYP)internally)||||||
|PGood TRUE(HI)||(Voset *93%) < Vout|||V|
|PGood FALSE(LO)||Out of above range|||V|
**http://www.murata.com/products/power**
MYMGA5R04RELA5RA A01 Page 3 of 16
**MYMGA5R04RELA5RA MonoBlock type POL, 4A DC-DC converter series for primary**
## **FUNCTIONAL SPECIFICATIONS OF MYMGA5R04RELA (Note 1)**
|**OUTPUT**|**Conditions**|**Minimum**|**Typical**|**Maximum**|**Units**|
|---|---|---|---|---|---|
|Total Output Power|See Derating|0||20|W|
|Voltage||||||
|Output Voltage Range|Note 9,11|3.3||5|Vdc|
|Minimum Loading|||None|||
|Accuracy (50% load, untrimmed)|Vin = nom.,Vout = nom., Cout=110uF,Ta=25degC|±1.0%|||Vdc|
|Current||||||
|Output Current Range|Note 2|0||4|A|
|Current Limit Inception|||6||A|
|Short Circuit||||||
|Short Circuit Duration (remove short for recovery)|Output shorted toground, no damage||Continuous|||
|Short circuitprotection method|Note 5||Hiccup|||
|Prebias Start-up||Converter will start up if the external output voltage
is less than Vout nominal.||||
|Regulation (Note8)||||||
|Line Regulation|Vin = min. to max.,Vout = nom., Iout = nom.|||±5.0|% of Vout|
|Ripple and Noise(20MHz bandwidth)|Note 6||100|200|mVpk-pk|
|External Output Capacitance(Note 12)||100||470|µF|
|**MECHANICAL(Common)**|**Conditions**|**Minimum**|**Typical**|**Maximum**|**Units**|
|Mechanical Dimension|W*D*H|10.5(typ)x9.0(typ)x5.6(max)|||mm|
|Weight|||1.5||Grams|
|**ENVIRONMENTAL(Common)**|**Conditions**|**Minimum**|**Typical**|**Maximum**|**Units**|
|OperatingAmbient Temperature Range|With Derating (Note 2,7)|-40||125|°C|
|Storage Temperature|Vin = Zero(nopower)|-40||85|°C|
|Thermal Protection/Shutdown|Measured in center(Note10)||150||°C|
|Moisture Sensitivity Level||3||||
|RoHS rating|||RoHS-6|||
## **Specification Notes**
(1)Specifications are typical at +25degC, Vin=nominal +12V, Vout=nominal (+5.0V), full load, external caps and natural convection unless otherwise indicated. Extended tests at full power must supply substantial natural airflow. All models are tested and specified with external 22uF*5 ceramic output capacitors and a 10 uF*2 ceramic and plenty electrolytic external input capacitors. All capacitors are low ESR types. These capacitors are necessary to accommodate our test equipment and may not be required to achieve specified performance in your applications. However, Murata recommends installation of these capacitors. All models are stable and regulate within spec under no-load conditions.
(2)Note that Maximum Power Derating curves indicate an average current at nominal input voltage. At higher temperatures and/or lower airflow, the DC/DC converter will tolerate brief full current outputs if the total RMS current over time does not exceed the Derating curve.
(3)Mean Time Between Failure is calculated using the MIL-HDBK-217, Tpcboard = +40degC, half output load, natural air convection.
(4)The On/Off Control Input should use either a switch or an open collector/open drain transistor referenced to Input Common. A logic gate may also be used by applying appropriate external voltages which do not exceed +Vin
(5)“Hiccup” overcurrent operation repeatedly attempts to restart the converter with a brief, full-current output. If the overcurrent condition still exists, the restart current will be removed and then tried again. This short current pulse prevents overheating and damaging the converter. Once the fault is removed, the converter immediately recovers normal operation.
(6)Output noise may be further reduced by adding an external filter. At zero output current, the output may contain low frequency components which exceed the ripple specification. The output may be operated indefinitely with no load.
(7)All models are fully operational and meet published specifications, including “cold start” at
-40degC.
(8)Regulation specifications describe the deviation as the line input voltage or output load current is varied from a nominal midpoint value to either extreme.
(9)Other input or output voltage ranges will be reviewed under scheduled quantity special order.
(10)Maximum PC board temperature is measured with the sensor in the center of the converter.
(11)Do not exceed maximum power specifications when adjusting the output trim. (12)The maximum output capacitive loads depend on the Equivalent Series Resistance (ESR) of the external output capacitor and, to a lesser extent, the distance and series impedance to the load. Larger caps will reduce output noise but may change the transient response. Newer ceramic caps with very low ESR may require lower capacitor values to avoid instability. Thoroughly test your capacitors in the application. Please refer to the Output Capacitive Load Application Note.
(13)Do not allow the input voltage to degrade lower than the input under voltage shutdown voltage at all times. Otherwise, you risk having the converter turn off. The under voltage shutdown is not latching and will attempt to recover when the input is brought back into normal operating range.
(14)The value is valid when the input voltage shutdown under opened the ON/OFF pin.
**http://www.murata.com/products/power**
MYMGA5R04RELA5RA A01 Page 4 of 16
**MYMGA5R04RELA5RA MonoBlock type POL, 4A DC-DC converter series for primary**
## **Internal Circuit Diagrams**
## **ON/OFF using guide**
By using ON/OFF function, the operation of this product can be disabled without disconnection of input Voltage.
## ON/OFF control uage
- ON/OFF pin(9pin) are pull-up : Output Voltage = ON
- ON/OFF pin(9pin) are connected to GND : Output Voltage =
## **Example**
It is strongly recommended that on/off terminal should be used when you turn on/off this product. Characteristics may be affected by turning input voltage on/off. Please check product operation on your application with turning
## **PowerGood(P.G) using guide**
PW Good tarminal is pulled up to Vcc terminal. The value of resistance of pull up is 100kΩ. When this product is in following situation, the Power Good signal appears at the No.7 pin.
- Output voltage is within voltage detection threshold: PW Good pin is on open-drain.
- Output Voltage is out of voltage detection threshold: PW Good pin is connected to GND.
- Soft-start is active: PW Good pin is connected to GND.
- An under voltage condition exists for the DC-DC converter: PW Good pin is connected to GND.
- A overcurrent condition has been detected: PW Good pin is connected to GND.
- Die temperature is over (170degC) : PW Good pin is connected to GND.
Max impressed voltage at Power Good terminal.
MAX：Vcc(4.85Vtyp)+0.6V
**http://www.murata.com/products/power**
MYMGA5R04RELA5RA A01 Page 5 of 16
**MYMGA5R04RELA5RA MonoBlock type POL, 4A DC-DC converter series for primary**
## **PERFORMANCE DATA AND OSCILLOGRAMS OF MYMGA5R04RELA**
**==> picture [490 x 449] intentionally omitted <==**
**----- Start of picture text -----**
Efficiency vs. Line Voltage and Load Current @ +25°C. (Vout = 5.0V) Vout vs. Line Voltage and Load Current @ +25°C. (Vout = 5.0V)
Efficiency Regulation
100
5.25
Vin=8V Vin=8V
95 5.15
5.05 Vin=12V
90 Vin=12V
4.95
85 Vin=16V
Vin=16V 4.85
80
4.75
0.0 1.0 2.0 3.0 4.0
0.0 1.0 2.0 3.0 4.0
Iout [A] Iout [A]
Step Load Transient Response (Vin=12.0V, Vout=5.0V, Cload=110uF, Step Load Transient Response (Vin=12.0V, Vout=5.0V, Cload=110uF,
Iout=2A to 4A, 2.5A/us) Trace 1=Vout, 50 mV/div, Trace 4=Iout, 2A/div. Iout=4A to 2A, 2.5A/us) Trace 1=Vout, 50 mV/div, Trace 4=Iout, 2A/div.
Tekfr Run __Sample r 34 Aogs —— (wena) Tek—Re fiRun SamSampleple A129 dogs e Caen)
ΔV=80mV
ern ΔV=40mV Cd ny Taney vy P ||
A VP
Aee anwyye act Hum MIMI
CeCe:| bas ‘saecenenn | a-
[4+] rE
Ch1 50.0mY % Bw Ch47 2.04_ Q. Bw AM 20Ch4 Os+ 12.5MS/s2.884 80.0ns/pt Chi 50.0mY % Bw Ch4 2.04 Q Bw MA 20.0psCh4 \ 12.5MS/s2.884 — 80.0nsipt
On/Off Enable Delay (Vin=12.0V, Vout=5.0V, Iout=20A, Cload=110uF)
Trace1=Enable, Trace2=Vout
Vout [V]
Efficiency [%]
**----- End of picture text -----**
**http://www.murata.com/products/power**
MYMGA5R04RELA5RA A01 Page 6 of 16
**MYMGA5R04RELA5RA MonoBlock type POL, 4A DC-DC converter series for primary**
## **PERFORMANCE DATA AND OSCILLOGRAMS OF MYMGA5R04RELA**
**==> picture [492 x 452] intentionally omitted <==**
**----- Start of picture text -----**
Efficiency vs. Line Voltage and Load Current @ +25°C. (Vout = 3.3V) Vout vs. Line Voltage and Load Current @ +25°C. (Vout = 3.3V)
Efficiency Regulation
100
3.44
Vin=8V Vin=8V
95
3.34
Vin=12V
90 Vin=12V
85 3.24 Vin=16V
Vin=16V
80
3.14
0.0 1.0 2.0 3.0 4.0
0.0 1.0 2.0 3.0 4.0
Iout [A] Iout [A]
Step Load Transient Response (Vin=12.0V, Vout=3.3V, Cload=110uF, Step Load Transient Response (Vin=12.0V, Vout=3.3V, Cload=110uF,
Iout=2A to 4A, 2.5A/us) Trace 1=Vout, 50 mV/div, Trace 4=Iout, 2A/div. Iout=4A to 4A, 2.5A/us) Trace 1=Vout, 50 mV/div, Trace 4=Iout, 2A/div.
Tek Stopped . ~ . 6 Acgs . . 1 . (vena) Tek Stopped wn 9 Acgs . | . (wena)
iie ΔV=94mV
SAAR ΔV=54mV | \ UAVS yh ny AAA N An aA AAAAARAAANANARAAANAAAAR
1 AMVpr inARAMRAA iV T ageSAAARAAARAAAARAAMAAAMANAAARM IA 1Mm‘AANNA vAA PUY ANVAANANAAAVYa NA AVVVANANANVAAAS—
pevhieicticnrt rien rehetA ree rte ahr rrr Pe ateanrorvvm
: | -
| anny
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Chi 50.0mY % Bw M 20.0ys 2.5MS/s 400ns/pt Ch1 S0.0mY % Bw M 20.0ps 2.5MS/s 400ns/pt
Ch4 2.04 Q Bw A Ch4 + 3.084 Ch4 2.04 Q Bw A Ch4 \ 3.084
On/Off Enable Delay (Vin=12.0V, Vout=3.3V, Iout=4A, Cload=110uF)
Trace1=Enable, Trace2=Vout
Vout [V]
Efficiency [%]
**----- End of picture text -----**
**http://www.murata.com/products/power**
MYMGA5R04RELA5RA A01 Page 7 of 16
**MYMGA5R04RELA5RA MonoBlock type POL, 4A DC-DC converter series for primary**
**==> picture [217 x 176] intentionally omitted <==**
**----- Start of picture text -----**
Maximum Current Temperature Derating at Sea Level
MYMGA5R04RELA5RA Safe Operating Area
Vin=8-16V Vout=3.3-5.0V ( Reference Data )
5
PTET TTT
4
PETE
3
2 PLT [TEE] EE [ EA]
PETE
1
PEELE
0 EEE ELEN
0 10 20 30 40 50 60 70 80 90 100110120130
Tc [ ℃ ]
Iout [A]
**----- End of picture text -----**
Thermal deratings are evaluated in following condition.
・The above de-rating limits apply to this product soldered directly to 60.0*50.0*1.6mm PCB (4reyer, with 35um copper) in the natural air-cooling condition. Any adjacent parts of high temperature may cause overheating.For reliable operation, please ensure that the Top side temperature of this product is maintained below Tc.
Transient response datas at various conditions are showed in following table. Minimum output capacitance can serve less than 3% * Vo(nom) of deviation for 2A load change(2A/us).
|Vout(V)|Vin(V)|Cout1(uF)*|Cout2(uF)|Voltage Deviation(mV)|
|---|---|---|---|---|
|||||2-4A Load Step (2A/us)|
|3.3|7.8|110|-|94|
|5.0|||-|66|
|3.3|12.0|110|-|94|
|5.0|||-|62|
|3.3|16.3|110|-|102|
|5.0|||-|60|
*Cout1 is minimum output capacitance for the products.
**http://www.murata.com/products/power**
MYMGA5R04RELA5RA A01 Page 8 of 16
**MYMGA5R04RELA5RA MonoBlock type POL, 4A DC-DC converter series for primary**
## **Dimension and Pin Assignment**
**==> picture [260 x 291] intentionally omitted <==**
**----- Start of picture text -----**
< Top View > < Side View >
MGA５R
０４RELA
① ② ③ ④ ⑤ ⑥ ⑦ ⑧
9.0
公差Tolerances Tolerance : ±0.10
ｺﾌﾟﾗﾅﾘﾃｨ± 0.10 mm 0.12以下
Unit [mm]［単位：mm］
Unit
10.5
5.6max.
**----- End of picture text -----**
|**Pin**|**Function**|
|---|---|
|**1~6**|**Vin**|
|**7**|**PGOOD**|
|**8**|**Vcc**|
|**9**|**ON/OFF**|
|**10~15**|**GND**|
|**16~21**|**Vout**|
|**22**|**+Sense**|
|**24**|**Trim**|
|**23, 25~30**|**GND**|
## **< Bottom View >**
**==> picture [400 x 205] intentionally omitted <==**
**----- Start of picture text -----**
28 29 30 3 2 1 28 29 30 3 2 1
||
25 FFA, 26 27 6 5 4 -—F iF 25 26 fF 27 6 ig 5 [F 4
|
0.65
= | | _
24 37 34 31 7 24 37 34 31 7
A ee ZA t aK Z -—o a Ze: BZ, TI4 =
23 38 35 32 8 23 38 35 32 8
A 7 a
4 ‘| 2 J Za Za Za ra =
22 39 36 33 9 22 39 36 33 9
18 17 16 12 11 10 18 17 16 12 11 10
TC [| | |
21 20 19 15 14 13 21 20 19 15 14 13
al 2] Fa} oe “J “] | 4 a Lf Ae ]
1.0 1.0 1.0 1.0 1.0 1.0 1.2 1.2 1.2
a LE te IE
2.4 0.3 0.3 2.4
0.45 0.3 0.3 0.9 0.3 0.3 0.45
0.45
0.9
0.3 3.45
0.9
0.7
0.8
1.0
0.8
0.45 0.3
0.8 1.0
0.8 0.3
0.8 1.0
0.7
0.9
0.3 3.45
0.9
0.45
**----- End of picture text -----**
## **http://www.murata.com/products/power**
MYMGA5R04RELA5RA A01 Page 9 of 16
**MYMGA5R04RELA5RA MonoBlock type POL, 4A DC-DC converter series for primary**
## **Recommended Board Land Pattern (Top View)**
**==> picture [414 x 218] intentionally omitted <==**
**----- Start of picture text -----**
0.4
1 2 3 30 29 28 1.0 1 2 3 30 29 28
= 0.2 3.4
4 5 6 27 26 25 1.0 4 5 6 27 26 25
0.8 = 0.6
7 31 34 37 24 0.9 7 31 34 37 24 1.1
a 7 J nn
0.6 0.7 0.2
8 32 35 38 23 0.9 8 32 35 38 23 1.1
0.7 0.2
sgggoc 9 33 36 39 22 0.9 |m@ 9 g 33 o 36 orol 39 22 1.1
7 0.6 a
10 11 12 16 17 18 1.0 10 11 12 16 17 18
— 0.2 3.4
TER REEEER] FEEERE aos _e an =] RETTRS
13 14 15 19 20 21 1.0 13 14 15 19 20 21
0.4
1.1 1.1 1.1 1.1 1.1 1.1 1.3 1.3 1.3
2.35 0.2 0.2 2.35
0.4 0.2 0.2 0.8 0.2 0.2 0.4
Unit [mm]
**----- End of picture text -----**
## **Example of Patern Layout(Top View)**
**==> picture [57 x 10] intentionally omitted <==**
**----- Start of picture text -----**
21.5x11.5(mm)
**----- End of picture text -----**
**http://www.murata.com/products/power**
MYMGA5R04RELA5RA A01 Page 10 of 16
**MYMGA5R04RELA5RA MonoBlock type POL, 4A DC-DC converter series for primary**
## **TAPE AND REEL INFORMATION**
## **Tape Dimension**
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Unit:mm
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## **Reel Dimension**
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**----- Start of picture text -----**
25.5± 1.0
A
2.0 ± 0.5
Indication
φ 21.0 ± 0.8 φ 13.0 ± 0.5
Portion A
Unit:mm
1 2
± ±
100 330
φ φ
**----- End of picture text -----**
**http://www.murata.com/products/power**
MYMGA5R04RELA5RA A01 Page 11 of 16
**MYMGA5R04RELA5RA MonoBlock type POL, 4A DC-DC converter series for primary**
## **TAPE SPECIFICATION**
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Circle Hole
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No.1 Pin
Pulling Direction
M M
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## **Note**
1. The adhesive strength of the protective tape must be within 0.1-1.3N.
- 2.Each reel contains the quantities such as the table below.
- 3.Each reel set in moisture-proof packaging because of MSL 3.
- 4.No vacant pocket in “Module on tape” section.
- 5.The reel is labeled with Murata part number and quantity.
- 6.The color of reel is not specified.
|**Part Number**|**Qty**|
|---|---|
|MYMGA5R04RELA5RA|400|
|MYMGA5R04RELA5RAD|100|
**http://www.murata.com/products/power**
MYMGA5R04RELA5RA A01 Page 12 of 16
**MYMGA5R04RELA5RA MonoBlock type POL, 4A DC-DC converter series for primary**
## **TECHNICAL NOTES**
## **Input Fusing**
Certain applications and/or safety agencies may require fuses at the inputs of power conversion components. Fuses should also be used when there is the possibility of sustained input voltage reversal which is not current limited. For greatest safety, we recommend a fast blow fuse installed in the ungrounded input supply line.
The installer must observe all relevant safety standards and regulations.
For safety agency approvals, install the converter in compliance with the end-user safety standard.
## **Input Under-Voltage Shutdown and Start-Up Threshold**
Under normal start-up conditions, converters will not begin to regulate properly until the ramping-up input voltage exceeds and remains at the Start-Up Threshold Voltage (see Specifications). Once operating, converters will not turn off until the input voltage drops below the Under-Voltage Shutdown Limit. Subsequent restart will not occur until the input voltage rises again above the Start-Up Threshold. This built-in hysteresis prevents any unstable on/off operation at a single input voltage.
## **Recommended Output Filtering**
The converter will achieve its rated output ripple and noise with additional external capacitor. The user may install more external output capacitance reduce the ripple even further or for improved dynamic response. Again, use low-ESR ceramic (Murata GCM31 series). Initial values of 22 uF*5 ceramic type. Mount these close to the converter. Measure the output ripple under your load conditions.
Use only as much capacitance as required to achieve your ripple and noise objectives. Excessive capacitance can make step load recovery sluggish or possibly introduce instability. Do not exceed the maximum rated output capacitance listed in the specifications.
## **Input Ripple Current and Output Noise**
All models in this converter series are tested and specified for input reflected ripple current and output noise using designated external input/output components, circuits and layout as shown in the figures below.
In the figure below, the two copper strips simulate real-world printed circuit impedances between the power supply and its
Users should be aware however of input sources near the Under-Voltage Shutdown whose voltage decays as input current is consumed (such as capacitor inputs), the converter shuts off and then restarts as the external capacitor recharges. Such situations could oscillate. To prevent this, make sure the operating input voltage is well above the UV Shutdown voltage AT ALL TIMES.
## **Start-Up Time**
Assuming that the output current is set at the rated maximum, the Vin to Vout Start-Up Time (see Specifications) is the time interval between the point when the ramping input voltage crosses the Start-Up Threshold and the fully loaded regulated output voltage enters and remains within its specified accuracy band. Actual measured times will vary with input source impedance, external input capacitance, input voltage slew rate and final value of the input voltage as it appears at the converter.
These converters include a soft start circuit to moderate the duty cycle of its PWM controller at power up, thereby limiting the input inrush current.
The On/Off Remote Control interval from On command to Vout regulated assumes that the converter already has its input voltage stabilized above the Start-Up Threshold before the On command. The interval is measured from the On command until the output enters and remains within its specified accuracy band. The specification assumes that the output is fully loaded at maximum rated current. Similar conditions apply to the On to Vout regulated specification such as external load capacitance and soft start circuitry.
## **Recommended Input Filtering**
The user must assure that the input source has low AC impedance to provide dynamic stability and that the input supply has little or no inductive content, including long distributed wiring to a remote power supply. The converter will
## **Minimum Output Loading Requirements**
All models regulate within specification and are stable under no load to full load conditions. Operation under no load might however slightly increase output ripple and noise. **Thermal Shutdown**
To prevent many over temperature problems and damage, these converters include thermal shutdown circuitry. If environmental conditions cause the temperature of the DC/DC’s to rise above the Operating Temperature Range up to the shutdown temperature, an on-board electronic temperature sensor will power down the unit. When the temperature decreases below the turn-on threshold, the converter will automatically restart.
**CAUTION:** If you operate too close to the thermal limits, the converter may shut down suddenly without warning. Be sure to thoroughly you’re your application to avoid unplanned thermal shutdown.
## **Temperature Derating Curves**
The graphs in this data sheet illustrate typical operation under a variety of conditions. The derating curves show the maximum continuous ambient air temperature. Note that these are
**http://www.murata.com/products/power**
MYMGA5R04RELA5RA A01 Page 13 of 16
**MYMGA5R04RELA5RA MonoBlock type POL, 4A DC-DC converter series for primary**
Note that the temperatures are of the ambient airflow, not the converter itself which is obviously running at higher temperature than the outside air. Also note that very low flow rates (below about 25 LFM) are similar to “natural convection,” that is, not using fan-forced airflow. Murata makes Characterization measurements in a closed cycle wind tunnel with calibrated airflow. We use both thermocouples and an infrared camera system to observe thermal performance.
**CAUTION:** These graphs are all collected at slightly above Sea Level altitude. Be sure to reduce the derating for higher density altitude.
## **Output Current Limiting**
Current limiting inception is defined as the point at which full power falls below the rated tolerance. See the Performance/Functional Specifications. Note particularly that the output current may briefly rise above its rated value in normal operation as long as the average output power is not exceeded. This enhances reliability and continued operation of your application. If the output current is too high, the converter will enter the short circuit condition.
## **Soldering Guidelines**
Murata recommends the specifications below when installing these converters. These specifications vary depending on the solder type.
Exceeding these specifications may cause damage to the product. Your production environment may differ therefore
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|||
|---|---|
|Reflow Solder Operations for surface-mount products (SMT)|
|For Sn/Ag/Cu based solders:|
|Preheat Temperature|Less than 1°C per second|
|Time over Liquidus|45 to 75 seconds|
|Maximum Peak Temperature|245°C|
|Cooling Rate|Less than 3°C per second|
|For Sn/Pb based solders:|
|Preheat Temperature|Less than 1°C per second|
|Time over Liquidus|60 to 75 seconds|
|Maximum Peak Temperature|235°C|
|Cooling Rate|Less than 3°C per second|
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## **Recommended Lead-free Solder Reflow Profile**
## **Output Short Circuit Condition**
When a converter is in current-limit mode, the output voltage will drop as the output current demand increases. Following a time-out period, the PWM will restart, causing the output voltage to begin ramping up to its appropriate value. If the short-circuit condition persists, another shutdown cycle will initiate. This rapid on/off cycling is called “hiccup mode”. The hiccup cycling reduces the average output current, thereby preventing excessive internal temperatures and/or component damage. A short circuit can be tolerated indefinitely.
The “hiccup” system differs from older latching short circuit systems because you do not have to power down the converter to make it restart. The system will automatically restore operation as soon as the short circuit condition is removed.
## **Remote On/Off Control**
The remote On/Off Control can be ordered with either polarity. Please refer to the Connection Diagram on page 1 for On/Off connections.
Positive logic models are enabled when the On/Off pin is left open or is pulled high to +Vin with respect to -Vin. An internal bias current causes the open pin to rise to +Vin. Positivepolarity devices are disabled when the On/Off is grounded or brought to within a low voltage (see Specifications) with respect to -Vin.
Dynamic control of the On/Off function should be able to sink appropriate signal current when brought low and withstand appropriate voltage when brought high. Be aware too that there is a finite time in milliseconds (see Specifications) between the time of On/Off Control activation and stable, regulated output. This time will vary slightly with output load type and current and input conditions. instability.
## **Output Capacitive Load**
These converters do not require external capacitance added to achieve rated specifications. Users should only consider adding capacitance to reduce switching noise and/or to handle spike
**CAUTION: Do not refl ow the DC-DC converter as follows, because the DC-DC converter may fall from the substrate during refl owing.**
**Mother Substrate Converte**
## **Pb-free solder processes**
For Pb-free solder processes, the product is qualified for MSL 3 according to IPC/JEDEC standard J-STD-020C.
During reflow PRODUCT must not exceed 245 degC at any time.
## **Dry Pack Information**
Products intended for Pb-free reflow soldering processes are delivered instandard moistre barrier bags according to IPC/JEDEC standard J-STD-033 (Handling, packing, shipping and use of moistre/reflow sensitivity surfacemount devices). Using products in high temperature Pb-free soldering processes requires dry pack storage and handling. In case the products have been stored in an uncontrolled environment and longer can be considered dry, the modues must be baked according to
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MYMGA5R04RELA5RA A01 Page 14 of 16
**MYMGA5R04RELA5RA MonoBlock type POL, 4A DC-DC converter series for primary**
## **Output Voltage Adjustment**
The output voltage may be adjusted over a limited range by connecting an external trim resistor (Rtrim) between the Trim pin and GND pin. The Rtrim resistor must be a 1/10 Watt precision metal film type,±0.5% accuracy or better with low temperature coefficient, ±100 ppm/°C. or better. Mount the resistor close to the converter with very short leads or use a surface mount trim resistor.
In the table below, the estimated resistance is given. Do not exceed the specified limits of the output voltage or the converter’s maximum power rating when applying these
||**Estimated Rtrim(ohm)**|**Estimated Rtrim(ohm)**|
|---|---|---|
|**Output Voltage**|**Caluculated R trim**|**R trim example**|
|5.0V|150|150|
|3.3V|7360|6.8k + 560|
Vout depends on the value of capacitance of Cout in this product , the smaller Cout may cause the higher Vout. The equations above are only reference , so please check Vout and adjust Rtrim in user circumstances. To increase(decrease) Vout is obtained by decreasing(increaseing) value of Rtrim .
**http://www.murata.com/products/power**
MYMGA5R04RELA5RA A01 Page 15 of 16
**MYMGA5R04RELA5RA MonoBlock type POL, 4A DC-DC converter series for primary**
## **APPENDIX**
## **Test Circuit**
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Vin Vout
Sense
ON/OFF RL
Vin 510kΩ Power Trim C2
Vcc Good GND Rtrim
C1
100kΩ
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## Vin：DC Power Supply
RL：Electronic Load Device
C1：10μF/50V `×` 2pcs (GCJ32EC71H106KA01 : Murata)
C2：22μF/10V `×` 5pcs (GCM31CR71A226KE02 : Murata)
*It is strongly recommended that on/off terminal should be used when you turn on/off this product. Characteristics may be affected by turning input voltage on/off. Please check product operation on your application with turning input voltage on/off.
It is recommended that the reset IC would be used acceptably to the input voltage specification, because this product have wide input voltage range.
If there is a long inductive cable length between the input power source and converter, then some additional bulk decoupling capacitance (eg. up to 1000uF) may be necessary to ensure a low AC impedance power source.
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!
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This product is subject to the following operating requirements and the Life and Safety Critical Application Sales Policy: Refer to: https://power.murata.com/en/requirements
Murata Manufacturing Co., Ltd makes no representation that the use of its products in the circuits describe herein, or the use of other technical information contained herein, will not infringe upon existing or future patent rights. The descriptions contained herein do not imply the granting of licenses to make, use, or sell equipment constructed in accordance therewith. Spec and cautions are subject to change without notice. © 2018 Murata Manufacturing Co., Ltd
Specifications are subject to change without notice.
**http://www.murata.com/products/power**
MYMGA5R04RELA5RA A01 Page 16 of 16
## Links
- [View this product on Novapart](https://novapart.co/products/MYMGA5R04RELA5RA/dc-pol-converter-adjustable-buck-8-v-to-16-in-33v)
- [Request a quote for this part](https://novapart.co/quote/)
- [Supplier page](https://es.farnell.com/murata-power-solutions/mymga5r04rela5ra/dc-dc-conv-non-isolated-3-3-5v/dp/3501730RL)
---
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