Wide Vin Low Noise Triple Output Step Down Converter Reference Design

(ACTIVE) PMP9462

Description & Features

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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"

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Design Files

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Bill of Materials (BOM)

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Parametrics
 PMP9462.1
(Output Voltage 1)
Vin (Min) (V)3.5
Vin (Max) (V)7
Vout (Nom) (V)28
Iout (Max) (A)3
Output Power (W)84
Isolated/Non-IsolatedNon-Isolated
Input TypeDC
TopologyBuck- Synchronous

TI Devices (2)

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Part Number Name Product Family Sample & Buy Design Kits & Evaluation Modules
LM26420  Dual 2.0A, High Frequency Synchronous Step-Down DC-DC Regulator  Step-down (buck)  Sample & Buy View Design Kits & Evaluation Modules
LM43603  3.5V to 36V, 3A Synchronous Step-Down Voltage Converter  Step-down (buck)  Sample & Buy View Design Kits & Evaluation Modules

CAD/CAE symbols

Part # Package | Pins CAD File (.bxl) STEP Model (.stp)
LM26420 Download Download
Download Download
LM43603 VSON (DSU)| 16 Download
Download Download

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Technical Documents

View the Important Notice for TI Designs covering authorized use, intellectual property matters and disclaimers.

User guides (1)
Title Abstract Type Size (KB) Date Views
PDF 2745 25 Aug 2014 8
Design files (7)
Title Abstract Type Size (KB) Date Views
PDF 326 25 Aug 2014 4
PDF 309 25 Aug 2014 4
ZIP 198 25 Aug 2014 7
ZIP 507 25 Aug 2014 4
PDF 62 25 Aug 2014 4
PDF 60 25 Aug 2014 5
PDF 99 25 Aug 2014 13
More literature (1)
Title Abstract Type Size (KB) Date Views
PDF 1139 08 Feb 2016 98

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