# Non Isolated POL DC/DC Converter, ITE, SIP, 16.5 W, 3 V, 5.5 V, 3 A
**URL**: https://novapart.co/products/R-735.0D/non-isolated-pol-dc-converter-ite-sip-165-w-3-v-55
**SKU**: R-735.0D
**Manufacturer**: RECOM POWER
**Category**: Power & Line Protection || Power Supplies || DC / DC Converters || DC / DC Non Isolated Board Mount Converters - Adjustable Output
**Price**: €21.5400
**Stock**: 10+
**Lead Time**: 127 days (indicative)
## Description
Output Power Max:16.5W; Output Voltage Min:3V; Output Voltage Max:5.5V; Output Current Max:3A; DC / DC Converter Output Type:Adjustable; DC / DC Converter Type:SIP; Input Voltage DC Min:6
## Specifications
| Parameter | Value |
|---|---|
| Svhc | No SVHC (21-Jan-2025) |
| Depth | 32.2mm |
| Width | 9.1mm |
| Height | 15mm |
| Product Range | R-7 Series |
| Output Power Max | 16.5W |
| Output Current Max | 3A |
| Output Voltage Max | 5.5V |
| Output Voltage Min | 3V |
| Input Voltage Dc Max | 28V |
| Input Voltage Dc Min | 6.5V |
| Dc / Dc Converter Type | SIP |
| Power Supply Applications | ITE |
| Dc / Dc Converter Output Type | Adjustable |
## Datasheet
📄 [Download PDF](https://novapart.co/datasheet/farnell:2846174/)
• Non-isolated Features • Synchronous rectification design • Adjustable output voltage **DC/DC Converter** • 2, 3, 4Amp adjustable positive step down Switching Integrated switching regulator • Over load protection Regulator • Continuous short circuit protection **R-7xxxP_D** e • Efficiency up to 97% ~~e~~ Po Description **2,3,4 Amp** The R-7xxx series is a high performance 2.5V to 17V, 2Amp to 4Amp, 12-Pin SIP (single in-line ~~PT~~ **SIP12** ©@ **3** package), integrated switching regulator (ISR). The synchronous - rectified design yields excellent efficiencies up to 97%. Short circuit protection reduces the short circuit input current to under 50mA. **Vertical & Horizontal** Selection Guide ~~|~~ Part Input Output Vout Output Efficiency Max. Capacitive **Single Output**[[(1)]][[(2)]] **r**
**==> picture [525 x 245] intentionally omitted <==**
**----- Start of picture text -----**
|||||||||||
|---|---|---|---|---|---|---|---|---|---|
|Selection Guide|
|||
|Part|Input|Output|Vout|Output|Efficiency|Max. Capacitive|Single Output|
|Number|Voltage Range Voltage Adjust Range|[[(1)]]|Current|@ min Vin @ max. Vin|Load|[[(2)]]|
|[VDC]|[VDC]|[VDC]|[A]|[%]|[%]|[µF]|
|R-723.3x|4.5 - 28|3.3|2.5 - 5.5|2|95|89|200/6800|
|R-725.0x|6.5 - 28|5.0|3.0 - 5.5|2|96|91|200/6800|
|R-726.5x|8.5 - 28|6.5|5.0 - 8.0|2|97|93|200/6800|
|R-729.0x|12 - 28|9.0|7.0 - 11|2|96|93|200/6800|
|R-7212x|15 - 28|12|10 - 14|2|97|95|200/6800|
|R-7215x|19 - 28|15|13 - 17|2|97|96|200/6800|
|R-733.3x|4.5 - 28|3.3|2.5 - 5.5|3|94|89|200/6800|
|R-735.0x|6.5 - 28|5.0|3.0 - 5.5|3|95|92|200/6800|
|R-736.5x|8.5 - 28|6.5|5.0 - 8.0|3|97|93|200/6800|
|R-739.0x|12 - 28|9.0|7.0 - 11|3|96|94|200/6800|
|R-7312x|15 - 28|12|10 - 14|3|97|96|200/6800|
|RoHS|2+|REACH|
|R-7315x|19 - 28|15|13 - 17|3|97|96|200/6800|compliant10 from 10|compliant|
|R-743.3x|4.5 - 28|3.3|2.5 - 5.5|4|93|88|200/6800|
|@|e|li|
|R-745.0x|6.5 - 28|5.0|3.0 - 5.5|4|95|91|200/6800|IEC/EN60950-1 certified|
|R-746.5x|8.5 - 28|6.5|5.0 - 7.5|4|96|93|200/6800|
|Notes:|
|T|T|
**----- End of picture text -----**
Note1: Vin-Vout ≥ 1.5V~4.0V depending on Vout if adjust function is used Note2: Please refer to basic characteristics on page I-2
~~|~~ Model Numbering
R-7_ __ ~~|~~ x Output Current (A) Pinning[(3)] ~~=~~ nom. Output Voltage
Notes:
Note3: x can be „P“ = vertical through hole
x can be „D“ = bent pins for horizontal through hole mounting
## Ordering Examples:
R-723.3P Iout= 2A R-7312D Iout= 3A
nom. Vout= 3.3VDC P= vertical through hole nom. Vout= 12VDC D= horizontal through hole
REV.: 7/2020
I-1
**www.recom-power.com**
## **R-7xxxP_D**
## **DC/DC Converter**
## **Series**
Specifications (refer to standard application circuit, Ta= 25°C)
|BASIC CHARACTERISTICS|BASIC CHARACTERISTICS|||||
|---|---|---|---|---|---|
|Parameter||Condition|Min.|Typ.|Max.|
|Quiescent Current||min. Vin to max.|||30mA|
|Internal Power Dissipation||ta<60°C|||1.4W|
|Output Current Limit||R-72xxx
R-73xxx
R-74xxx||2.5A
3.75A
5.0A|3.0A
4.25A
5.5A|
|Minimum Load|||10%|||
|ON/OFF CTRL(4)||DC-DC ON
DC-DC OFF|Open or high, 4.5V min. / 28V max.
Low(Power OFF)0.8V max.|||
|Input Current of CTRL Pin||DC-DC OFF|||100µA|
|Internal Operating Frequency|||270kHz|300kHz|330kHz|
|Output Ripple and Noise||||40mVp-p|70mVp-p|
|Maximum Capacitive Load||normal start-uptime, no external diodes|||200µF|
|||<1 second start-uptime + diodeprotection circuit|||6800µF|
|continued on nextpage
How to calculate the max. output current
Calculation 1:
Calculation 2:
Calculation 3:
Notes:
Note4: ON/OFF pin driven by TTL (logic gate), open-collector bipolar transistor or open-drain MOSFET
0
0.5
0
20
40
60
80
85
100
Ambient Temperature [°C]
Internal Power Dissipation [W]
1.4
1
Vin = 28V
Vout = 5V
Effmax Vin= 91%
PD= 1.4W
TAmbient= 60°C
Vin = 28V
Vout = 5V
Effmax Vin= 91%
PD= 1.0W
TAmbient= 85°C
Vin = 12V
Effmax Vin= 94%
PD= 1.0W
TAmbient= 85°C
Example: R-745.0P
Iout=
1.4W
= 3.11A
5V x (1-0.91 )
Iout=
1W
= 2.222A
5V x (1-0.91 )
Iout=
1W
= 3.33A
5V x (1-0.94 )
Iout=
PD
Vout x (1-Effmax Vin)
PD=
Iout x Vout x (1-Effmax Vin)
The internal power dissipation (PD) follows the equation:|Notes:|||||
REV.: 7/2020
I-2
**www.recom-power.com**
## **R-7xxxP_D**
## **DC/DC Converter**
## **Series**
Specifications (refer to standard application circuit, Ta= 25°C)
Efficiency vs. Load
**==> picture [203 x 190] intentionally omitted <==**
**----- Start of picture text -----**
R-72xx / R-73xx / R-74xx
max. Vin
100
90
80
70
60
15Vout
50 5Vout
3.3Vout
40
0 1 2 3 4
Output Current [A]
Efficiency [%]
**----- End of picture text -----**
Efficiency vs. Input Voltage
**==> picture [205 x 185] intentionally omitted <==**
**----- Start of picture text -----**
R-72xx / R-73xx
100
90
80
70
60
50
40
30
15Vout
20 6.5Vout
5Vout
10
3.3Vout
0
0 5 10 15 20 25 28
Input Voltage [VDC]
Efficiency [%]
**----- End of picture text -----**
**==> picture [207 x 423] intentionally omitted <==**
**----- Start of picture text -----**
R-72xx / R-73xx / R-74xx
min. Vin
100
95
90
85
80
6.5Vout
75
5Vout
3.3Vout
70
0 1 2 3 4
Output Current [A]
R-74xx
100
90
80
70
60
50
40
30
20 6.5Vout
5Vout
10 3.3Vout
0
0 5 10 15 20 25 28
Input Voltage [VDC]
Efficiency [%]
Efficiency [%]
**----- End of picture text -----**
Ripple vs. Input Voltage
**==> picture [486 x 187] intentionally omitted <==**
**----- Start of picture text -----**
R-72xx / R-73xx R-74xx
50 100
45 90
40 80
35 70
30 60
25 50
20 40
15 30
10 15Vout 6.5Vout 20 6.5Vout
12Vout 5Vout 5Vout
5 9Vout 3.3Vout 10 3.3Vout
0 0
0 5 10 15 20 25 28 0 5 10 15 20 25 28
Input Voltage [VDC] Input Voltage [VDC]
Ripple (mV)
Ripple (mV)
**----- End of picture text -----**
REV.: 7/2020
I-3
**www.recom-power.com**
## **R-7xxxP_D**
## **DC/DC Converter**
## **Series**
Specifications (refer to standard application circuit, Ta= 25°C)
|2ADC
R-723.3P/D
R-725.0P/D
R-726.5P/D
R-729.0P/D
R-7212P/D
R-7215P/D
3ADC
R-733.3P/D
R-735.0P/D
R-736.5P/D
R-739.0P/D
R-7312P/D
R-7315P/D
4ADC
R-743.3P/D
R-745.0P/D
R-746.5P/D|2ADC
R-723.3P/D
R-725.0P/D
R-726.5P/D
R-729.0P/D
R-7212P/D
R-7215P/D
3ADC
R-733.3P/D
R-735.0P/D
R-736.5P/D
R-739.0P/D
R-7312P/D
R-7315P/D
4ADC
R-743.3P/D
R-745.0P/D
R-746.5P/D|2ADC
R-723.3P/D
R-725.0P/D
R-726.5P/D
R-729.0P/D
R-7212P/D
R-7215P/D
3ADC
R-733.3P/D
R-735.0P/D
R-736.5P/D
R-739.0P/D
R-7312P/D
R-7315P/D
4ADC
R-743.3P/D
R-745.0P/D
R-746.5P/D|2ADC
R-723.3P/D
R-725.0P/D
R-726.5P/D
R-729.0P/D
R-7212P/D
R-7215P/D
3ADC
R-733.3P/D
R-735.0P/D
R-736.5P/D
R-739.0P/D
R-7312P/D
R-7315P/D
4ADC
R-743.3P/D
R-745.0P/D
R-746.5P/D|2ADC
R-723.3P/D
R-725.0P/D
R-726.5P/D
R-729.0P/D
R-7212P/D
R-7215P/D
3ADC
R-733.3P/D
R-735.0P/D
R-736.5P/D
R-739.0P/D
R-7312P/D
R-7315P/D
4ADC
R-743.3P/D
R-745.0P/D
R-746.5P/D|2ADC
R-723.3P/D
R-725.0P/D
R-726.5P/D
R-729.0P/D
R-7212P/D
R-7215P/D
3ADC
R-733.3P/D
R-735.0P/D
R-736.5P/D
R-739.0P/D
R-7312P/D
R-7315P/D
4ADC
R-743.3P/D
R-745.0P/D
R-746.5P/D|2ADC
R-723.3P/D
R-725.0P/D
R-726.5P/D
R-729.0P/D
R-7212P/D
R-7215P/D
3ADC
R-733.3P/D
R-735.0P/D
R-736.5P/D
R-739.0P/D
R-7312P/D
R-7315P/D
4ADC
R-743.3P/D
R-745.0P/D
R-746.5P/D|2ADC
R-723.3P/D
R-725.0P/D
R-726.5P/D
R-729.0P/D
R-7212P/D
R-7215P/D
3ADC
R-733.3P/D
R-735.0P/D
R-736.5P/D
R-739.0P/D
R-7312P/D
R-7315P/D
4ADC
R-743.3P/D
R-745.0P/D
R-746.5P/D|2ADC
R-723.3P/D
R-725.0P/D
R-726.5P/D
R-729.0P/D
R-7212P/D
R-7215P/D
3ADC
R-733.3P/D
R-735.0P/D
R-736.5P/D
R-739.0P/D
R-7312P/D
R-7315P/D
4ADC
R-743.3P/D
R-745.0P/D
R-746.5P/D|2ADC
R-723.3P/D
R-725.0P/D
R-726.5P/D
R-729.0P/D
R-7212P/D
R-7215P/D
3ADC
R-733.3P/D
R-735.0P/D
R-736.5P/D
R-739.0P/D
R-7312P/D
R-7315P/D
4ADC
R-743.3P/D
R-745.0P/D
R-746.5P/D|2ADC
R-723.3P/D
R-725.0P/D
R-726.5P/D
R-729.0P/D
R-7212P/D
R-7215P/D
3ADC
R-733.3P/D
R-735.0P/D
R-736.5P/D
R-739.0P/D
R-7312P/D
R-7315P/D
4ADC
R-743.3P/D
R-745.0P/D
R-746.5P/D|2ADC
R-723.3P/D
R-725.0P/D
R-726.5P/D
R-729.0P/D
R-7212P/D
R-7215P/D
3ADC
R-733.3P/D
R-735.0P/D
R-736.5P/D
R-739.0P/D
R-7312P/D
R-7315P/D
4ADC
R-743.3P/D
R-745.0P/D
R-746.5P/D|2ADC
R-723.3P/D
R-725.0P/D
R-726.5P/D
R-729.0P/D
R-7212P/D
R-7215P/D
3ADC
R-733.3P/D
R-735.0P/D
R-736.5P/D
R-739.0P/D
R-7312P/D
R-7315P/D
4ADC
R-743.3P/D
R-745.0P/D
R-746.5P/D|
|---|---|---|---|---|---|---|---|---|---|---|---|---|
|Vout nom.
3.3VDC
5.0VDC
6.5VDC
9.0VDC
12VDC
15VDC|||||||||||||
|Vout adj.|Rdown|Rup|Rdown|Rup|Rdown|Rup|Rdown|Rup|Rdown|Rup|Rdown|Rup|
|2.5|8.5kΩ||||||||||||
|3.0|33kΩ||470Ω||||||||||
|3.2|110kΩ||1.6kΩ||||||||||
|3.3|||2.2kΩ||||||||||
|3.4||36kΩ|3.0kΩ||||||||||
|3.6||11kΩ|4.7kΩ||||||||||
|3.9||4.7kΩ|8.5kΩ||||||||||
|4.5||1.6kΩ|30kΩ||||||||||
|4.9||820Ω|220kΩ||||||||||
|5.0||680Ω|||11kΩ||||||||
|5.1||560Ω||28kΩ|12kΩ||||||||
|5.5||190Ω||2.6kΩ|20kΩ||||||||
|6.0|||||47kΩ||||||||
|6.5|||||||||||||
|7.0||||||4.5kΩ|13kΩ||||||
|7.5||||||2.2kΩ|||||||
|8.0|||||||31kΩ||||||
|9.0|||||||||||||
|10||||||||2.2kΩ|20kΩ||||
|11||||||||390Ω|47kΩ||||
|12|||||||||||||
|13||||||||||2.4kΩ|36kΩ||
|14||||||||||390Ω|76kΩ||
|15|||||||||||||
|16||||||||||||2.6kΩ|
|17||||||||||||860Ω|
|REGULATIONS||||
|---|---|---|---|
|Parameter||Condition|Value|
|Output Accuracy||full load|±1.0% typ. / ±2.0% max.|
|Line Regulation||low line to high line, full load|± 0.5% typ. / ±1.0% max.|
|Load Regulation(5)||10% to 100%, full load|± 0.5% typ. / ±1.0% max.|
|Transient Response(6)||50% load step change
Vout Over / Undershoot|100µs typ. / 200µs max.
100mV max.|
||Notes:
Note5: Operation below 10% load will not harm the converter, but specifcations may not be met
Note6: Requires a 100µF electrolytic or tantalum output capacitor for proper operation in all applications
(the capacitor has to be placed as close as possible to the output pins)|||
REV.: 7/2020
I-4
**www.recom-power.com**
## **R-7xxxP_D**
## **DC/DC Converter**
## **Series**
Specifications (refer to standard application circuit, Ta= 25°C)
**==> picture [526 x 234] intentionally omitted <==**
**----- Start of picture text -----**
PROTECTIONS
Parameter Condition Value
Short Circuit Protection (SCP) continuous, automatic recovery
Short Circuit Input Current 50mA typ. / 100mA max.
Optional Diode Protection Circuit
Optional Protection 1: Optional Protection :
Add a blocking diode to Vout if current D1
can flow backwards into the output, as
this can damage the converter when it is powered down. Protection diodes are required for high capacitive loads. +Vin +Vin R-5/6/7xxxGND +Vout +Vout +Vin +Vin R-5/6/7xxxGND Vadj +Vout D1 +Vout
The diode can either be fitted across Rdown
the device, if the source is low imped-
ance or fitted in series with the output GND GND GND GND
(recommended). Rdown: Trim output voltage up to 1 diode drop
**----- End of picture text -----**
|ENVIRONMENTAL|ENVIRONMENTAL|ENVIRONMENTAL|ENVIRONMENTAL|
|---|---|---|---|
|Parameter|Condition||Value|
|OperatingTemperature Range|without derating@ natural convection 0.1m/s||-40°C to +85°C|
|Maximum Case Temperature|||+110°C|
|Thermal Impedance|@ natural convection 0.1m/s||25°C/W|
|OperatingHumidity|non-condensing||95% RH max.|
|OperatingAltitude|||2000m|
|Pollution Degree|||PD2|
|MTBF|according to MIL-HDBK 217F, G.B.|+25°C
+85°C|749 x 103hours
150 x 103hours|
|SAFETY AND CERTIFICATIONS|SAFETY AND CERTIFICATIONS|SAFETY AND CERTIFICATIONS|
|---|---|---|
|Certifcate Type(Safety)|Report / File Number|Standard|
|Information Technology Equipment, General Requirements for Safety|1605077-12|IEC60950-1:2005, 2nd Edition + AM2:2013
EN60950-1:2006 + AM2:2013|
|EAC|RU-AT.49.09571|TP TC 004/2011|
|RoHS 2+||RoHS-2011/65/EU + AM-2015/863|
|continued on nextpage|||
REV.: 7/2020
I-5
**www.recom-power.com**
## **R-7xxxP_D**
## **DC/DC Converter**
## **Series**
Specifications (refer to standard application circuit, Ta= 25°C)
EMC Filtering Suggestions according to EN55032
|C1
C2
GND
L2
L1
+Vin
Component List
EN55022
C1
Class A
N/A
Class B
10µF|L1|L1|C2
L2|C2
L2|C4
R-746.5
C3
GND
+Vo
+Vin|C4
R-746.5
C3
GND
+Vo
+Vin|C4
R-746.5
C3
GND
+Vo
+Vin|C4
R-746.5
C3
GND
+Vo
+Vin|GND
ut
+Vout|GND
ut
+Vout|GND
ut
+Vout|
|---|---|---|---|---|---|---|---|---|---|---|---|
||||||||R-746.5
GND
+Vo
+Vin|||||
||C1||C2||C3|||||||
|||||||||||||
|||||||||||||
|||||||||||||
|||EN55022||C1|C2|C3||C4||L1|L2|
|||Class A||N/A|33µF|||N/A||N/A|0.45mH CMC|
|||Class B||10µF|33µF
|||1nF/2kV||2mH|0.45mH CMC|
**==> picture [526 x 466] intentionally omitted <==**
**----- Start of picture text -----**
DIMENSION AND PHYSICAL CHARACTERISTICS
Parameter Type Value
case non-conducive black plastic, (UL94 V-0)
Material
potting epoxy, (UL94 V-0)
Dimension (LxWxH) 32.2 x 9.1 x 15.0mm
Weight 9g typ.
Dimension Drawing (mm)
32.2
R-7xxxD
embossed logo
32.2 9.1
R-7xxxP Marking
2.1 0.70 [+0.10/-0.05] 0.25 [±0.05]
11 x 2.54 = 27.94 Recommended Footprint Details 2.1 0.70 [+0.10/-0.05] 0.25 [±0.05]
Recommended Footprint Details
1 2 3 4 5 6 7 8 9 10 11 12
Top View Bottom View 1 2 3 4 5 6 7 8 9 10 11 12
Bottom View
1 2 3 4 5 6 7 8 9 10 11 12 Top View
1 2 3 4 5 6 7 8 9 10 11 12 11 x 2.54 = 27.94
2.54
2.54
Pin Connections
Pin # Single Description
1 ON/OFF Input pin: Active low (less than 0.8V) to disable the device
2,3,4 Vin Power Input
5, 6, 7, 8 GND Input and Output ground (common)
9, 10, 11 Vout Power output
12 Vadj with external resistors R1, R2 to selected output voltage
Tolerance: xx.x= ±0.5mm
xx.xx= ±0.25mm
15.0
15.0
9.1
4.10
2.54
17.0
2.54
0.8
**----- End of picture text -----**
REV.: 7/2020
I-6
**www.recom-power.com**
## **R-7xxxP_D**
## **DC/DC Converter**
## **Series**
Specifications (refer to standard application circuit, Ta= 25°C)
**==> picture [526 x 195] intentionally omitted <==**
**----- Start of picture text -----**
INSTALLATION AND APPLICATION
Standard Application Circuit
+V +Vin +Vout +V
in out
R-7xxxP_D
OFF 1µF C1
(Optional) ON/OFF GND V Rdown
ON adj C2
100µF
VCTRL Q1 ESR= 150m Ω max.
(Required)
R
up
Com Com
Add blocking diode to Vout if current can flow backwards into the output, as this can damage the converter.
(Please refer to “Optional Diode Protection Circuit” on Page I-5)
**----- End of picture text -----**
|PACKAGING INFORMATION|PACKAGING INFORMATION|PACKAGING INFORMATION|
|---|---|---|
|Parameter|Type|Value|
|Packaging Dimensions (LxWxH)|R-7xxxD
R-7xxxP|520.0 x 20.0 x 19.0mm
530.0 x 23.0 x 19.0mm|
|PackagingQuantity|tube|15pcs|
|Storage Temperature Range||-40°C to +125°C|
The product information and specifications may be subject to changes even without prior written notice.The product has been designed for various applications; its suitability lies in the responsibility of each customer. The products are not authorized for use in safety-critical applications without RECOM’s explicit written consent. A safety-critical application is an application where a failure may reasonably be expected to endanger or cause loss of life, inflict bodily harm or damage property. The applicant shall indemnify and hold harmless RECOM, its affiliated companies and its representatives against any damage claims in connection with the unauthorized use of RECOM products in such safety-critical applications.
REV.: 7/2020
I-7
**www.recom-power.com**
## Links
- [View this product on Novapart](https://novapart.co/products/R-735.0D/non-isolated-pol-dc-converter-ite-sip-165-w-3-v-55)
- [Request a quote for this part](https://novapart.co/quote/)
- [Supplier page](https://es.farnell.com/recom-power/r-735-0d/dc-dc-converter-3v-to-5-5v-3a/dp/2846174)
---
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