98% Efficient 30W Synchronous Automotive Pre-Boost Reference Design

(ACTIVE) PMP11479

Description & Features

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Key Document

Description

PMP11479 is a synchronous boost power supply using the LM5122-Q1 controllers. The design accepts an input voltage of 6Vin to 16Vin, and boosts a 12Vout rail capable of sourcing 2.5A continuous current. The LM5122-Q1 has an internal current source to keep the high side FET to run at 100% duty cycle which allows a bypass operation when the input voltage is greater than the configured output voltage.

Features
  • 6V to 16V in, output 12V@ 2.5A
  • Achieving efficiency of 98% at 12Vin
  • High density design
  • Solution size: 36mm x 23mm
  • Overvoltage and overcurrent protection

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Schematic/Block Diagram

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Design Guide

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Design Files

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Bill of Materials (BOM)

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Parametrics
 PMP11479.1
(Output Voltage 1)
Vin (Min) (V)6
Vin (Max) (V)16
Vout (Nom) (V)12
Iout (Max) (A)2.5
Output Power (W)30
Isolated/Non-IsolatedNon-Isolated
Input TypeDC
TopologyBoost- Synchronous

TI Devices (1)

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Part Number Name Product Family Sample & Buy Design Kits & Evaluation Modules
LM5122-Q1  Automotive Grade, 3-65V Wide Vin, Current Mode Synchronous Boost Controller with Multiphase Capabili  Step-up (boost)  Sample & Buy View Design Kits & Evaluation Modules

CAD/CAE symbols

Part # Package | Pins CAD File (.bxl) STEP Model (.stp)
LM5122-Q1 Download

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Technical Documents

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User guides (1)
Title Abstract Type Size (KB) Date Views TI Recommends
PDF 1145 12 Jul 2016 6
Design files (6)
Title Abstract Type Size (KB) Date Views
ZIP 289 12 Jul 2016 5
ZIP 372 12 Jul 2016 3
PDF 890 12 Jul 2016 3
PDF 123 12 Jul 2016 3
PDF 126 12 Jul 2016 3
PDF 303 12 Jul 2016 5

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