Dual 5V Output USB Charging Reference Design Using Two LMR23630 DC/DC Synchronous Buck Converters
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Key Document


The PMP10745 is a dual output DC/DC Buck converter power supply reference design for USB charging applications. It takes a 7V to 36V input voltage, and generates two 5V at 3A outputs with 96% peak efficiency. The reference design features two LMR23630 buck converters to provide two very stable and well-regulated outputs. The board dimension is 66 x 58 mm (2.6 x 2.3 inch), but the solution size is 46 x 38 mm (1.8 x 1.5 inch). The reference design uses an EMI filter at the input and the board is layout-optimized for improved EMI performance, which results in compliance with the CISPR 25 Class 5 conducted emissions standard.

  • Input: 7V to 36V
  • Output: 5V @ 3A, 5V @ 3A
  • Peak efficiency 96%
  • EMI CISPR 25 Class 5
  • Compact solution size, 1.8 x 1.5 inch

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(Output Voltage 1)
Vin (Min) (V)7
Vin (Max) (V)36
Vout (Nom) (V)5
Iout (Max) (A)3
Output Power (W)15
Input TypeDC

TI Devices (1)

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Part Number Name Product Family Sample & Buy Design Kits & Evaluation Modules
LMR23630  SIMPLE SWITCHER®, 36V 3A Synchronous Step-Down Converter  Step-down (buck)  Sample & Buy View Design Kits & Evaluation Modules

CAD/CAE symbols

Part # Package | Pins CAD File (.bxl) STEP Model (.stp)
LMR23630 Download Download
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User guides (1)
Title Type Size (KB) Date
PDF 1407 22 Apr 2016
Design files (3)
Title Type Size (KB) Date
ZIP 340 22 Apr 2016
PDF 117 22 Apr 2016
PDF 130 22 Apr 2016

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