PMP9462 Reference Design

Texas Instruments

Wide Vin Low Noise Triple Output Step Down Converter Reference Design

Description

The reference design PMP9462 is a single input step-down converter with three low-noise outputs. The module uses LM43603: a synchronous step-down DC-DC converter capable of driving up to 3A of load current from an input voltage ranging 7V to 36V. The 5V output from LM43603 enables the LM26420 which further steps down this voltage to produce 1.8V and 2.5V outputs: capable of driving 1A load current each. This power supply is suitable for applications that require multiple outputs from a single input DC voltage. It provides good regulation performance over an input voltage range of 7V to 36V.

Features
  • 7V to 36V Vin: 5V Vout @2A: 1.8V@1.5A and 2.5V@1.5A 15W Pout for factory automation needs Switching frequency 500kHz 4 layer board Meets CISPR 22 class B conducted emisison Solution size 1 x 2.5" "
Applications
  • Solar charge controller
Product Categories
  • Power management

End Equipment Reference Diagrams

Parts

Part Number Name Companion Part
LM26420 LM26420 Buy Datasheet

Bill Of Materials

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Schematic

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Test Data

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Other Documents

Title Updated Type Size (KB)
PMP9462 PCB (Layer Plots 1 to 1) 25 Aug 2014 PDF 326
PMP9462 PCB (3D Prints 1 to 1) 25 Aug 2014 PDF 309
PMP9462 Gerber 25 Aug 2014 ZIP 198
PMP9462 Altium 25 Aug 2014 ZIP 507
PMP9462 Assembly Drawing 25 Aug 2014 PDF 62
PMP9462 BOM 25 Aug 2014 PDF 60
PMP9462 Schematic 25 Aug 2014 PDF 99