RGA4W250W020A-001

Non Isolated POL DC/DC Converter, Sixteenth Brick, 250 W, 3.3 V, 15 V, 20 A

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Manufacturer: TDK-LAMBDA
Product type: DC / DC Non Isolated Board Mount Converters - Adjustable Output
SVHC: No SVHC (15-Jan-2018)
Depth: 35.6mm
Width: 25.6mm
Height: 13mm
Product Range: RGA Series
Output Power Max: 250W
Output Current Max: 20A
Output Voltage Max: 15V
Output Voltage Min: 3.3V
Input Voltage DC Max: 53V
Input Voltage DC Min: 9V
DC / DC Converter Type: Sixteenth Brick
Power Supply Applications: -
DC / DC Converter Output Type: Adjustable

Delivery and price
Units per pack	50
Price	44.23 €
Current stock	10+
Lead time	30 days

Datasheet

RGA Series 

250W, 9 to 40V, or 9 to 53V Input Non-Isolated Ruggedized DC-DC Buck Converters 

https://product.tdk.com/en/power/rga www.emea.lambda.tdk.com/rga 

The rugged RGA non-isolated DC-DC step-down converters are encapsulated in a five-sided aluminum case and rated for up to 110˚C operation.  The modules have the industry standard 1/16th brick pin-out, are qualified to MIL-STD-810G (shock and vibration) and designed for fan-less, conduction cooled applications. The series accepts a wide input range to support multiple DC bus and battery voltages. Standard and optional features include remote on/off, remote sense, power good, frequency synchronization and output sequencing, making the modules a truly versatile power solution.  The wide output adjustment range allows one model to be used in multiple positions, assisting inventory and part number reduction. 

|**Features**|**Benefits**|
|---|---|
|• Up to 250W in a 1/16th Brick Pin-Out|• High Power Density, Less Board Area Needed|
|• Encapsulated in a 5-sided Aluminum case|• Improves EMI|
|• 110 ˚C maximum case temperature|• Ruggedized deployment in harsh environment with high shock & vibration exposure|
|• Efficiency - Up to 98%|• Longer Battery Life / Low Power Consumed|
|• Wide 3.3 to 15V, 3.3 to 24V or 3.3 to 40V Output Adjustment|• One Part Supports Multiple System Voltages|
|• Wide 9 to 40V or 9 to 53V Input Range|• Can Operate From Different DC Source Voltages|
|• Low Component Count With Minimal External Components|• Low Cost|



## **Model Selector** 

||Input|Output|Max|Max|Negative|Full|
|---|---|---|---|---|---|---|
|Model|Voltage|Voltage|Current|Power|Logic|Feature*|
||(V)|(V)|(A)|(W)|On/Off||
|RGA24250W014A-001|9 - 40|3.3 - 24|14|250|Yes|No|
|RGA24250W014A-003|9 - 40|3.3 - 24|14|250|Yes|Yes|
|RGA4W250W010A-001|9 - 53|3.3 - 40|10|250|Yes|No|
|RGA4W250W010A-003|9 - 53|3.3 - 40|10|250|Yes|Yes|
|RGA4W250W020A-001|9 - 53|3.3 - 15|20|250|Yes|No|
|RGA4W250W020A-003|9 - 53|3.3 - 15|20|250|Yes|Yes|



## Preferred model 

* Full feature includes Power Good signal, Frequency Synchronization, Output Sequencing 

## **Related Products** 

|Type|Part Number|Description|
|---|---|---|
|Ruggedized DC-DC Buck Converter|RGB|400-750W, Input 9 to 18V or 18 up to 60V, Output 0.8-8V or 3.3V up to 24V|
|Ruggedized DC-DC Buck-Boost Converter|RGC|300W, Input 9-53V or 9-36V, Output 9.6-48V, 8A; 5-28V, 12.5A; or 8-24V, 20A|
|DC-DC Buck Converter|i7A|400-750W, Input 9-18V, 18 up to 60V, Output 0.8-8V, 3.3 up to 32V, 20A up to 60A|
|DC-DC Buck-Boost Converter|i7C|300W, Input 9-53V or 9-36V, Output 9.6-48V, 8A; 5-28V, 12.5A; or 8-24V, 20A|
|DC-DC Buck Converter|i6A4W|250W, Input 9-53V,  Output 3.3-40V, 10A; 3.3-15V, 20A|
|Isolated DC-DC Converter|GQA|120W Industrial, Input 9-36V, Isolated Quarter Brick|
|Isolated DC-DC Converter|HQA|120W MIL-COTS, Input 9-40V, Isolated Quarter Brick|
|Evaluation Board|i367X-C01-EVK-S0|Evaluation Board with no module. Order required RGA part number separately.|



RGA Series 

1 

**==> picture [517 x 34] intentionally omitted <==**

|**Specifcation**|**Specifcation**|**Specifcation**|**Specifcation**|**Specifcation**|
|---|---|---|---|---|
|Model<br>RGA24250W014A<br>RGA4W250W010A<br>RGA4W250W020A|||||
|**Input**|||||
|Input Voltage Range|Vdc|9 - 40|9 - 53||
|Input Current (max)|A|15|20||
|Standby Input Current (typ)|mA|1.5|||
|Turn-ON  Input Voltage|Vdc|8|||
|Turn-OFF Input Voltage<br>|Vdc|7 - 9|||
|Effciency<br>|%|92.5 - 98|94 - 97.5|90 - 97|
|Safety Certifcations and Markings|-|CE, UKCA Mark|||
|**Output**|||||
|Output Voltage Tolerance|%|± 4|||
|Switching Frequency|kHz|400|||
|Line Regulation|%|0.3|0.3|0.4|
|Load Regulation|%|1|0.9|1.2|
|External Load Capacitance|uF|0 - 2200|0 - 1500|0 - 1800|
|Ripple & Noise|mVpp|20|50|20|
|Overcurrent Protection Threshold (typ)|A|22|15|27|
|Overtemperature Protection|-|Yes<br>|||
|Output Voltage Adjustment Range|-|See full specifcations for output trim equation.|||
|Remote Sense|-|(+) Sense, compensating up to 5% of output voltage|||
|Remote On/Off|-|Negative Logic|||
|Power Good|-|Optional (Full Feature Version)|||
|Frequency Synchronization (SYNC)|-|Optional (Full Feature Version)|||
|Output Sequencing (SEQ)|-|Optional (Full Feature Version)|||
|**Environmental**|||||
|Operating Temperature (Tcase)|°C|-40 to 110|||
|Storage Temperature|°C|-55 to 125|||
|Humidity (non condensing)|%RH|5 - 95 (Operating & Storage)|||
|Altitude(2)|m|2000|||
|Cooling|-|Conduction Cooling|||
|Shock|-|MIL-STD-810G 516.6 Procedure I & IV|||
|Vibration|-|MIL-STD-810G 514.6 Procedure I, Cat 10<br>|||
|Thermal Cycling Test (TCT)|-|Qualifed to 700 cycles / -40 to 125˚C, 60˚C/min ramp, 30 min dwell time|||
|**Other**|||||
|Weight (Typ)|g|42.5 max|||
|Size (LxWxH)|mm|35.6 x 35.6 x 13.0<br>35.6 x 25.6 x 13.0 (Mounting tab excluded)|||
|Size (LxWxH)|Inches|1.40 x 1.40 x 0.51<br>1.40 x 1.01 x 0.51 (Mounting tab excluded)|||
|MTBF - Telcordia SR-332|-|> 12 MHrs; 100% Load; Ta = 40 °C|||
|Warranty|yrs|3 years|||



Notes 

(1) See website for detailed product specifcation. 

(2) Contact Technical Support for operation at higher altitudes. 

RGA Series 

2 

## **Typical Application Circuit (RGA)** 

## Recommendation 

1. TRIM resistor Rup should be connected as close as possible to the power module. 

## **Operating Range (RGA4W250W020A-xxx)** 

## **Operating Range (RGA24250W014A-xxx)** 

## **Operating Range (RGA4W250W010A-xxx)** 

## **Pinout** 

||PIN|PIN|Function|PIN|Function|
|---|---|---|---|---|---|
|||1|VIN (+)|7|SENSE +|
|||2|ON / OFF|8|VOUT (+)|
|||3<br>4|VIN (-) / GND<br>VOUT (-) / GND|32<br>33|SYNC (Option)<br>MS (Option)|
|||5|Power Good (Option)|34|SEQ (Option)|
|Pin base material is brass or copper with gold over nickel plating.||6<br>Pin base material is brass or copper with gold over nickel plating.|TRIM<br>Pin base material is brass or copper with gold over nickel plating.|Pin base material is brass or copper with gold over nickel plating.||



RGA Series 

3 

## **Mechanical Specification** 

**==> picture [491 x 17] intentionally omitted <==**

**----- Start of picture text -----**<br>
Dimensions are in mm [in].  Unless otherwise specified tolerances are: x.x ± 0.5 [0.02], x.xx ± 0.25 [0.010].<br>**----- End of picture text -----**<br>


**==> picture [142 x 12] intentionally omitted <==**

**----- Start of picture text -----**<br>
Note: Case is not connected to ground (floating).<br>**----- End of picture text -----**<br>


RGA Series 

4 

## **Recommended Hole Pattern (Suffix -001)** 

## **Recommended PCB Hole Pattern (Suffix -003)** 

RGA Series 

5 

## **TDK-Lambda France SAS** 

Tel: +33 1 60 12 71 65 tlf.fr-powersolutions@tdk.com www.emea.lambda.tdk.com/fr 

## **TDK-Lambda Americas** 

Tel:  +1 800-LAMBDA-4 or 1-800-526-2324 tla.powersolutions@tdk.com www.us.lambda.tdk.com 

## **Italy Sales Office** 

Tel: +39 02 61 29 38 63 tlf.it-powersolutions@tdk.com www.emea.lambda.tdk.com/it 

## **Netherlands** 

## **TDK Electronics do Brasil Ltda** 

Tel: +55 11 3289-9599 sales.br@tdk-electronics.tdk.com www.tdk-electronics.tdk.com/en 

tlf.nl-powersolutions@tdk.com www.emea.lambda.tdk.com/nl 

## **TDK-Lambda Germany GmbH** 

Tel: +49 7841 666 0 tlg.powersolutions@tdk.com www.emea.lambda.tdk.com/de 

## **TDK-Lambda Corporation** 

Tel: +81-3-6778-1113 www.jp.lambda.tdk.com 

## **TDK-Lambda (China) Electronics Co. Ltd.** 

Tel: +86 21 6485-0777 tlc.powersolutions@tdk.com www.lambda.tdk.com.cn 

## **Austria Sales Office** 

Tel: +43 2256 655 84 tlg.at-powersolutions@tdk.com www.emea.lambda.tdk.com/at 

## **Switzerland Sales Office** 

Tel: +41 44 850 53 53 tlg.ch-powersolutions@tdk.com www.emea.lambda.tdk.com/ch 

## **Nordic Sales Office** 

## **TDK-Lambda Singapore Pte Ltd.** 

Tel: +65 6251 7211 tls.marketing@tdk.com www.sg.lambda.tdk.com 

## **TDK India Private Limited, Power Supply Division** 

Tel:   +91 80 4039-0660 mathew.philip@tdk.com www.sg.lambda.tdk.com 

Tel: +45 8853 8086 tlg.dk-powersolutions@tdk.com www.emea.lambda.tdk.com/dk 

## **TDK-Lambda UK Ltd.** 

Tel: +44 (0) 12 71 85 66 66 tlu.powersolutions@tdk.com www.emea.lambda.tdk.com/uk 

## **TDK-Lambda Ltd.** 

Tel: +9 723 902 4333 tli.powersolutions@tdk.com www.emea.lambda.tdk.com/il-en 

For Additional Information, please visit https://product.tdk.com/en/power/ 

RGA_Datasheet_260874 July 15th, 2024 V3 

RGA Series 

6

Updated at April 10, 2026

TDK-Lambda is globally recognized as a premier manufacturer of highly reliable power supply solutions and power management equipment. With a strong engineering heritage, the company is a trusted partner for mission-critical applications across the industrial, medical, telecommunications, and test and measurement sectors, delivering components that meet stringent international performance and safety standards. Our extensive portfolio of TDK-Lambda products is heavily focused on comprehensive power and line protection, highlighted by a vast selection of industry-leading AC/DC converters. Engineered to deliver exceptional efficiency and stable performance in demanding environments, these power supplies form the backbone of our offering and are built to support the rigorous power demands of modern electronic infrastructure. To complement these primary power solutions, we also offer a targeted range of high-performance DC/DC converters designed for precise, board-level voltage regulation. Furthermore, to ensure the optimal performance and longevity of these power systems, our catalog includes specialized cooling and thermal management components, such as natural convection heat sinks, providing complete thermal stability for your most critical designs.

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