STH0548S05

XP Power 

## 0.5 Amp 

- 0.5A Switching Regulator **xxx Series** 

- Regulated Single Outputs from 3.3 to 15VDC 

- Wide Input Range 

- SMD-10 Package 

- Non-Isolated 

- Output Voltage Trim ±10% 

- High Efficiency up to 92% 

- Class B Conducted & Radiated Emissions with External Components 

- Short-Circuit Protection 

- No Heatsink Required 

- Remote On/Off 

Dimensions: STH05: 0.77 x 0.47 x 0.39” (19.5 x 11.8 x 5.0 mm) 

- Tape & Reel Package Available 

- -40°C to +100°C Operation 

- Full Load to +60°C 

- 3 Year Warranty 

The STH05 is a new series of innovative low cost DC-DC buck regulators. Based on SMD technology and high levels of automation the series offers many features including voltage trimming, remote on/off, continuous short circuit protection, regulation and high efficiency. 

|Nominal Input<br>Voltage (VDC)<br>~~ee~~<br>~~ee~~|Output<br>voltage<br>(VDC)<br>~~eee~~<br>|Output<br>Current<br>(A)<br>|Input Current<br>(mA)<br>~~_~~|Input Current<br>(mA)<br>~~_~~|Input Current<br>(mA)<br>~~_~~|Maximum<br>Capacitive<br>Load<br>~~_~~|Efficiency at<br>Full Load %|Efficiency at<br>Full Load %|Model Number(1)<br>~~oe~~<br>~~ee~~|
|---|---|---|---|---|---|---|---|---|---|
||||No Load<br>(max.)|Full Load<br>~~_~~||||||
|||||Vin (min.)<br>~~a~~|Vin (max.)<br>~~_~~||Vin (min.)<br>~~ee~~|Vin (max.)<br>~~ee~~||
|48 V (9-72 V)<br>~~ee~~<br>~~ee~~<br>~~ee~~|3.3 V<br>~~eee~~<br>~~eee~~<br>|0.5 A<br>~~eee~~<br>~~eee~~<br>~~ee~~|3.0 mA|232 mA<br>~~a~~<br>~~ee~~|33 mA<br>~~_~~|100μF<br>~~_~~|79.0%<br>~~ee~~<br>~~ee~~|70.0%<br>~~ee~~<br>~~ee~~|STH0548S3V3<br>~~oe~~<br>~~ee~~<br>~~ee~~|
|48 V (9-72 V)<br>~~ee ~~<br>~~ee~~<br>~~ee~~<br>~~ee~~|5.0 V<br> ~~eee~~<br>~~eee~~<br>~~eee~~<br>|||323 mA<br>~~a~~<br>~~ee~~<br>~~ee~~|47 mA<br>~~_~~<br>~~ee~~||86.0%<br>~~ee~~<br>~~ee~~<br>~~ee~~|74.0%<br>~~ee~~<br>~~ee~~<br>~~ee~~|STH0548S05<br>~~oe~~<br>~~ee~~<br>~~ee~~|
|48 V (9-72 V)<br> <br>~~ee ~~<br>~~ee~~<br>~~ee~~<br>~~ee~~|6.5 V<br> ~~eee~~<br> ~~eee~~<br>~~eee~~<br>~~eee~~<br>|||406 mA<br>~~a~~<br>~~ee~~<br>~~ee~~<br>~~ee~~|58 mA<br>~~ee~~||89.0%<br>~~ee ~~<br>~~ee~~<br>~~ee~~<br>~~ee~~|78.0%<br> ~~ee~~<br>~~ee~~<br>~~ee~~<br>~~ee~~|STH0548S6V5<br>~~ee~~<br>~~ee~~<br>~~ee~~|
|48 V (14-72 V)<br> <br>~~ee ~~<br>~~ee~~<br>~~ee~~<br>~~ee~~|7.2 V<br> ~~eee~~<br> ~~eee~~<br>~~eee~~<br>~~eee~~<br>|||289 mA<br>~~ee~~<br>~~ee~~<br>~~ee~~<br>~~ee~~|62 mA<br>~~ee~~<br>~~ee~~||89.0%<br>~~ee~~<br>~~ee~~<br>~~ee~~<br>~~ee~~|81.0%<br>~~ee~~<br>~~ee~~<br>~~ee~~<br>~~ee~~|STH0548S7V2<br>~~ee~~<br>~~ee~~|
|48 V (14-72 V)<br> <br>~~ee ~~<br>~~ee~~<br>~~ee~~<br>~~ee~~|9.0 V<br> ~~eee~~<br> ~~eee~~<br>~~eee~~<br>~~**e**ee~~|||357 mA<br>~~ee ~~<br>~~ee~~<br>~~ee~~<br>~~**ee**~~|74 mA<br> ~~ee~~<br>~~ee~~||90.0%<br>~~ee ~~<br>~~ee~~<br>~~ee~~<br>~~**ee**~~|84.0%<br> ~~ee~~<br>~~ee~~<br>~~ee~~<br>~~ee~~|STH0548S09<br>~~ee~~<br>~~ee~~|
|48 V (17-72 V)<br> <br>~~ee ~~<br>~~ee~~<br>~~ee~~|12.0 V<br> ~~eee~~<br> ~~eee~~<br>~~**e**ee~~<br>~~e~~|||384 mA<br>~~ee~~<br>~~ee~~<br>~~**ee**~~|97 mA<br>~~ee~~<br>~~ee~~||92.0%<br>~~ee~~<br>~~ee~~<br>~~**ee**~~|86.0%<br>~~ee~~<br>~~ee~~<br>~~ee~~<br>~~ee~~|STH0548S12<br>~~ee~~<br>~~ee~~|
|48 V (21-72 V)<br> <br>~~ee ~~<br>~~ee~~|15.0 V<br> ~~eee~~<br> ~~**e**ee~~<br>~~e~~|0.4 A<br>~~ee~~||311 mA<br>~~ee ~~<br>~~**ee**~~|99 mA<br> ~~ee~~<br>~~ee~~||92.0%<br>~~ee ~~<br>~~**ee**~~|84.0%<br> ~~ee~~<br>~~ee~~<br>~~ee~~|STH0548S15<br>~~ee~~|



## ~~**Notes**~~ 

1. For tape & reel add “-TR”, e.g. STH0548S05-TR. 500 pcs per reel. 

## Input 

|Characteristic|Minimum|Typical|Maximum|Units|Notes & Conditions|
|---|---|---|---|---|---|
|Input Voltage Range|9|48|72|VDC|See Models and Ratings|
|Input Surge|||75|VDC for 100 ms||
|Input Current|||3|mA|No load. See Models and Ratings|
|Inhibit Mode Input Current|||1|mA|When module is in standby mode|
|Remote On/Off|Pin 10 open circuit, logic high, module is on.<br>Connect pin 10 to ground, logic low, module is off.|||||



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1 

XP Power 

Output 

Characteristic Minimum Typical Maximum Units Notes & Conditions Output Voltage 3.3 15 VDC See Models and Ratings table Trim Range ±10 % See Application Notes Initial Set Accuracy ±2.0 % Minimum Load A No minimum load required Line Regulation ±1.0 % Load Regulation ±1.0 % To 100% load from 10% Maximum deviation recovery within 250 μ s at Transient Response ±3 % normal Vin for 25% step load change from 25% to 100% load Ripple & Noise 75 mV pk-pk 20 MHz bandwidth, measured with 0.1 and 10 μ F electrolytic capacitors μ F ceramic Short Circuit Protection Continuous, with auto recovery Temperature Coefficient ±0.02 %/ ˚ C General Characteristic Minimum Typical Maximum Units Notes & Conditions Efficiency 92 % See Models and Ratings table Isolation: Input to Output No isolation Switching Frequency 150 550 KHz See application notes Mean Time Between Failure 4.8 MHrs MIL-HDBK-217F, +25 °C GB Weight 0.0039 (1.8) lb (g) Moisture Sensitivity Level Level 1 IPC/JEDEC J-STD-020D.1 PCB Pad Material Copper PCB Pad Solder Coating Lead-free HASL Lead-Free Reflow Solder Process    245 °C max, 1.5 mm from case, 10 s max. IPC/JEDEC J-STD-020D.1 Environmental Characteristic Minimum Typical Maximum Units Notes & Conditions Operating Temperature -40 +105 °C See Derating Curve. Storage Temperature -55 +125 °C Humidity 95 %RH Non-condensing ~~————————~~ Cooling Natural convection (>30 LFM) EMC: Emissions Phenomenon Standard Test Level Notes & Conditions Conducted EN55032 Class B With external components, see application note Radiated EN55032 Class B With external components, see application note ~~ee~~ EMC: Immunity Phenomenon Standard Test Level Criteria Notes & Conditions ESD EN61000-4-2 ±8 kV air discharge A Radiated EN61000-4-3 3 V/m A EFT/Burst EN61000-4-4 ±0.5 kV A See application note Surge EN61000-4-5 ±1 kV A See application note Conducted EN61000-4-6 3 V rms A Magnetic Fields EN61000-4-8 3 A/m A ~~————_—_=—~~ Safety Approvals Agency Standard Test Level Notes & Conditions CE Meets all applicable directives UKCA Meets all applicable legislation ~~wee ==~~ **www.xppower.com** 2 

XP Power 

Mechanical Details ~~88 |e~~ 

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Bottom View<br>**----- End of picture text -----**<br>


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Top View Bottom View<br>0.19 0.10 0.2 0.10 0.18 0.18 0.10 0.2 0.10 0.19<br>(4.87) (2.54) (5.08) (2.54) (4.47) (4.47) (2.54) (5.08) (2.54) (4.87)<br>10 9 7 6<br>6 7 9 10<br>11.8 11.8 0.39<br>(0.47) (0.47) (9.7)<br>5 1<br>1 5<br>a_i<br>I a 0.05 (1.2) i A. 0.05 (1.2) _ _ l<br>0.4 (10.16) 0.4 (10.16)<br>0.77 (19.5) 0.77 (19.5)<br>S|)<br>Side View Solder Pad Dimension<br>0.2 0.10<br>(5.08) (2.54)<br>0.2 0.16  0.05 (1.5)<br>(4.0)<br>(5.0)<br>10 9 7 6<br>NICAL SPECIFICATIONS1 5<br>0.05 (1.2)<br>0.77 (19.5)<br>nn i 0.5 eel 0.38<br>(12.92) (9.7)<br>1 5<br>oo, 0.4 (10.16)<br>Pin Connections<br>Pin Function<br>1 +Vin<br>5 +Vout<br>6 Trim<br>7 Ground<br>9 Ground<br>10 Remote On/Off<br>**----- End of picture text -----**<br>


## ~~**Notes**~~ 

1. All dimensions are in inches (mm) 

2. Weight: 0.0039 lbs (1.4 g) approx. 

3. Pin Profile Tolerance: ±0.004 (±0.1) 

   5. Other Tolerances: ±0.02 (±0.5) 

   6. PCB tracks should not run under the STH05 to avoid interference and the risk of short circuit. 

4. Pin Pitch  Tolerance: ±0.01 (±0.25) 

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3 

**STH05 Series Switching Regulator** XP Power 

## Application Notes ~~a~~ 

## **Derating Curve** 

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100%<br>75% COPPER<br>50% CECE<br>25%<br>COTTE<br>-40 CECE -20 0 20 40 60 80 100 120<br>85 105<br>Ambient Temperature (°C)<br>Output Power<br>**----- End of picture text -----**<br>


**EFT & Surge** 

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1 5<br>STH05<br>9 7<br>oe-Vin GND GND<br>**----- End of picture text -----**<br>


## **EMI** 

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L 1 5<br>C3 STH05<br>C2 C4<br>9 7<br>arr |<br>GND GND<br>**----- End of picture text -----**<br>


Suggested Filter : Nippon - chemi - con 330 μ F 100V KY series and a TVS, 3KW, 70V. 

—————SSS C1 D1 330 μ F, 100 V SMDJ 7.0 A 

Input filter components (Cin, C1, L1) are used to help meet EMI requirement for the module. These components should be mounted as close as possible to the module; and all leads should be minimized to decrease radiated noise. 

C1, C2 L1 C3, C4 1206, 2.2 μ F, 100V 56 μ H 1206, 2.2 μ F, 100 V 

## **Switching Frequency** 

Notes 15 V 540 KHz 12 V 480 KHz 9 V 390 KHz Typical values at 20% load. 7.2 V 300 KHz Typically 50 KHz at 10% load for all 6.5 V 290 KHz variants. 5.0 V 220 KHz 3V3 180 KHz 

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4 

**STH05 Series** 

XP Power 

**Switching Regulator** 

## **Output Voltage Adjustment** 

|% Trim<br>~~a~~|STH0548S3V3<br>(3V3)|STH0548S3V3<br>(3V3)|STH0548S05 (5)|STH0548S05 (5)|STH0548S6V5<br>(6V5)|STH0548S6V5<br>(6V5)|STH0548S7V2<br>(7V2)|STH0548S7V2<br>(7V2)|STH0548S09 (9)|STH0548S09 (9)|STH0548S12 (12)|STH0548S12 (12)|STH0548S15 (15)|STH0548S15 (15)|
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
||Rd<br>|Ru<br>|Rd<br>|Ru<br>|Rd<br>|Ru<br>|Rd<br>|Ru<br>|Rd<br>~~ee~~<br>|Ru<br>~~**e**e~~<br>|Rd<br>~~ee~~|Ru<br>~~ee~~|Rd<br>~~ee~~|Ru<br>~~eee~~|
|1<br>~~a~~<br>~~a~~<br>~~a~~|50.85<br>~~ee~~<br>|43.59<br>~~ee~~<br>|35.9<br>~~ee~~<br>|112.4<br>~~ee~~<br>|7.637<br>~~ee~~<br>|206.567<br>~~ee~~<br>|14.781<br>~~ee~~<br>|53.792<br>~~ee~~<br>|69.411<br>~~ee~~<br>~~ee~~<br>|88.789<br>~~ee~~<br>~~**e**e~~<br>|51.633<br>~~ee~~<br>~~ee~~|106.567<br>~~ee~~<br>~~ee~~<br>~~eee~~|18.967<br>~~ee~~<br>~~ee~~<br>~~ee~~|89.733<br>~~ee~~<br>~~eee~~<br>~~eee~~|
|2<br>~~a~~<br>~~a~~<br>~~a~~|13.089<br>~~ee~~<br>|26.956<br>~~ee~~<br>~~ee~~<br>|17.15<br>~~ee~~<br>~~ee~~<br>|56.15<br>~~ee~~<br>~~ee~~<br>|4.619<br>~~ee~~<br>~~ee~~<br>|38.65<br>~~ee~~<br>~~ee~~|7.133<br>~~ee~~<br>~~ee~~|26.37<br>~~ee~~<br>~~ee~~|33.856<br>~~ee ~~<br>~~ee~~<br>~~ee~~|44.344<br> ~~**e**e ~~<br>~~ee~~<br>~~ee~~|24.967<br> ~~ee ~~|53.233<br> ~~ee ~~<br>~~eee~~<br>~~ee~~|8.883<br> ~~ee ~~<br>~~ee~~<br>~~ee~~|44.817<br> ~~eee~~<br>~~eee~~|
|3<br>~~a~~<br>~~a~~<br>~~a~~|7.148<br>~~**a**~~|19.496<br>~~ee~~<br>~~**ee**~~|10.9<br>~~ee~~<br>~~**ee**~~|37.4<br>~~ee~~<br>~~**ee**~~|3.202<br>~~ee~~<br>~~**ee**~~|21.279<br>~~ee~~|4.525<br>~~ee~~<br>~~ee~~|17.443<br>~~ee~~<br>~~ee~~|22.004<br>~~ee~~<br>~~ee~~|29.53<br>~~ee~~<br>~~ee~~|16.078<br>~~ee~~|35.456<br>~~eee ~~<br>~~ee~~<br>~~ee~~|5.5522<br> ~~ee ~~<br>~~ee~~<br>~~ee~~|29.844<br> ~~eee~~<br>~~ee~~|
|4<br>~~a ~~<br>~~a~~<br>~~a~~|4.730<br> ~~**a**~~<br>|15.26<br>~~ee~~<br>~~**ee**~~<br>|7.775<br>~~ee~~<br>~~**ee**~~<br>|28.025<br>~~ee~~<br>~~**ee**~~<br>|2.38<br>~~ee ~~<br>~~**ee**~~<br>|14.622<br> ~~ee~~<br>|3.21<br>~~ee~~<br>~~ee~~<br>|13.019<br>~~ee ~~<br>~~ee~~<br>|16.078<br> ~~ee~~<br>~~ee~~<br>|22.122<br>~~ee~~<br>~~ee~~<br>~~ee~~<br>|11.633<br>~~ee~~<br>~~ee~~<br>|26.567<br>~~ee ~~<br>~~ee~~<br>~~ee~~<br>|3.842<br> ~~ee~~<br>~~ee~~<br>~~eee~~<br>|22.358<br>~~ee~~<br>~~ee~~<br>|
|5<br> <br>~~a~~<br>~~a~~<br>~~a~~|3.417<br> ~~**a** ~~<br><br>|12.53<br> ~~**ee**~~<br><br>|5.9<br>~~**ee**~~<br>~~s~~<br><br>|22.4<br>~~**ee**~~<br><br>|1.843<br>~~**ee**~~<br><br>|11.173<br><br>|2.417<br>~~ee~~<br><br>|10.377<br>~~ee~~<br><br>|12.522<br>~~ee ~~<br>~~e~~<br><br>|17.678<br> ~~ee ~~<br>~~e~~<br>~~ee~~<br><br>~~ee~~<br>|8.967<br> ~~ee ~~<br>~~e~~<br>~~ee~~<br><br>~~ee~~<br>|21.233<br> ~~ee ~~<br>~~e~~<br>~~ee~~<br><br>~~ee~~<br>|2.833<br> ~~ee ~~<br>~~e~~<br>~~eee~~<br><br>~~ee~~<br>|17.867<br> ~~ee~~<br>~~e~~<br>~~ee~~<br><br>~~ee~~<br>|
|6<br>~~a ~~<br>~~a~~<br>~~a~~|2.593<br> ~~aee~~<br><br>|10.624<br>~~ee~~<br>|4.65<br>~~ee~~<br>|18.65<br>~~ee~~<br>|1.464<br>~~ee~~<br>|9.018<br>~~ee~~<br>|1.887<br>~~ee~~<br>|8.621<br>~~ee~~<br>|10.15<br>~~ee~~<br><br>~~ee~~|14.715<br>~~ee ~~<br>~~ee~~<br>~~ee~~<br><br>~~ee~~|7.189<br> ~~ee ~~<br>~~ee~~<br>~~ee~~<br><br>~~ee~~|17.678<br> ~~ee ~~<br>~~ee~~<br>~~ee~~<br><br>~~ee~~|2.161<br> ~~eee ~~<br>~~ee~~<br>~~ee~~<br><br>~~ee~~|14.872<br> ~~ee~~<br>~~ee~~<br>~~ee~~<br><br>~~ee~~|
|7<br>~~a ~~<br>~~a~~<br>~~a~~|2.028<br> ~~aee~~<br><br>|9.218<br>~~ee~~<br>|3.757<br>~~ee~~<br>|15.971<br>~~ee~~<br>|1.183<br>~~ee~~<br>|7.554<br>~~ee~~|1.508<br>~~ee~~|7.369<br>~~ee~~|8.459<br>~~ee~~<br>~~ee~~|12.598<br>~~ee ~~<br>~~ee~~<br>~~ee~~|5.919<br> ~~ee ~~<br>~~ee~~<br>~~ee~~|15.138<br> ~~ee ~~<br>~~ee~~<br>~~ee~~<br>~~ee~~|1.681<br> ~~ee ~~<br>~~ee~~<br>~~ee~~<br>~~ee~~|12.733<br> ~~ee~~<br>~~ee~~<br>~~ee~~<br>~~ee~~|
|8<br>~~a ~~<br>~~a~~<br>~~a~~|1.616<br> ~~a~~<br>~~a~~<br>|8.138<br>~~aee~~<br>~~ee~~<br>|3.088<br>~~ee~~<br>~~ee~~<br>|13.963<br>~~ee~~<br>~~ee~~<br>|0.966<br>~~ee~~<br>~~ee~~<br>|6.496<br>~~ee~~<br>|1.223<br>~~ee~~<br>~~ee~~<br>|6.431<br>~~ee~~<br>~~ee~~<br>|7.189<br>~~ee ~~<br>~~ee~~<br>~~ee~~<br>|11.011<br> ~~ee ~~<br>~~ee~~<br>~~ee~~<br>|4.967<br> ~~ee ~~<br>~~ee~~<br>~~ee~~<br>|13.233<br> ~~ee ~~<br>~~ee~~<br>~~ee~~<br>~~ee~~<br>|1.321<br> ~~ee ~~<br>~~ee~~<br>~~ee~~<br>~~ee~~<br>|11.129<br> ~~ee~~<br>~~ee~~<br>~~ee~~<br>~~ee~~<br>|
|9<br>~~a ~~<br>~~a~~|1.302<br> ~~a~~<br>|7.282<br>~~ee~~<br>|2.567<br>~~ee~~<br>|12.4<br>~~ee~~<br>|0.793<br>~~ee~~<br>|5.694<br>|1.001<br>~~ee~~<br>|5.702<br>~~ee~~<br>|6.201<br>~~ee~~<br>|9.777<br>~~ee~~<br><br>ee|4.226<br>~~ee~~<br><br>ee|11.752<br>~~ee ~~<br>~~ee~~<br><br>~~eee~~|1.041<br> ~~ee ~~<br>~~ee~~<br><br>~~eee~~|9.881<br> ~~ee~~<br>~~ee~~<br><br>ee|
|10<br> <br>~~a~~|1.056<br> ~~a ~~<br>~~ee~~|6.588<br> ~~ee~~<br>~~ee~~|2.15<br>~~ee~~<br>~~ee~~|11.15<br>~~ee~~<br>~~ee~~|0.653<br>~~ee~~<br>~~ee~~|5.067<br>~~ee~~|0.824<br>~~ee~~<br>~~ee~~|5.12<br>~~ee~~<br>~~ee~~|5.411<br>~~ee ~~<br>~~ee~~|8.789<br> ~~ee ~~<br>~~ee~~<br>ee|3.633<br> ~~ee ~~<br>~~ee~~<br>ee|10.567<br> ~~ee ~~<br>~~ee~~<br>~~eee~~|0.817<br> ~~ee ~~<br>~~ee~~<br>~~eee~~|8.883<br> ~~ee~~<br>~~ee~~<br>ee|



## **Remote On/Off** 

## **Standard Application Circuit** 

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1 +Vin<br>10 On/Off<br>9 GND<br>**----- End of picture text -----**<br>


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1 +Vin +Vin 5<br>9 GND GND 7<br>**----- End of picture text -----**<br>


2-5 VDC or Open DC-DC ON 0-0.4 VDC or Short DC-DC OFF 

Cin 10 μ F must be fitted near DC-DC pins. Optional Cout 10 μ F 

02 Nov 2021 

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5