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PMP20440

Dual-Phase Synchronous Buck Converter for Automotive Audio Reference Design

Design files

PMP20440

Design files

Overview

PMP20440 is a dual phase synchronous buck converter reference design for 12V output at 11A from an input voltage of 6V to 17V. At an input voltage of 12V or less the output will follow with a small voltage drop. This design uses the LM5140-Q1 dual phase synchronous buck controller at a free-running switching frequency of 440 kHz. Features include external frequency synchronization, enable and power good.

Features
  • 132W continuous output power
  • 97% typical efficiency
  • Very low dropout
  • Power good flag
  • Synchronizable to external clock
Output voltage options PMP20440.1
Vin (Min) (V) 6
Vin (Max) (V) 17
Vout (Nom) (V) 12
Iout (Max) (A) 11
Output Power (W) 132
Isolated/Non-Isolated Non-Isolated
Input Type DC
Topology Buck- Multiphase
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A fully assembled board has been developed for testing and performance validation only, and is not available for sale.

Design files & products

Design files

Download ready-to-use system files to speed your design process.

download Test report — PMP20440
TIDUDZ2.PDF (3099 K)

Test results for the reference design, including efficiency graphs, test prerequisites and more

download Schematic — PMP20440
TIDRU96.PDF (213 K)

Detailed schematic diagram for design layout and components

download Bill of materials (BOM) — PMP20440
TIDRU97.PDF (33 K)

Complete listing of design components, reference designators, and manufacturers/part numbers

download Assembly drawing — PMP20440
TIDRU98.PDF (187 K)

Detailed overview of design layout for component placement

download CAD/CAE symbol — PMP20440
TIDRUA0.ZIP (658 K)

Files used for 3D models or 2D drawings of IC components

download Gerber file — PMP20440
TIDCE67.ZIP (492 K)

Design file that contains information on physical board layer of design PCB

download PCB layout — PMP20440
TIDRU99.PDF (1022 K)

PCB layer plot file used for generating PCB design layout

Products

Includes TI products in the design and potential alternatives.

AC/DC & DC/DC controllers (external FET)

LM5140-Q1 — Wide Vin Dual 2.2MHz low Iq Synchronous Buck Controller

Data sheet: PDF | HTML
General-purpose op amps

LMC7101Q-Q1 — Automotive-grade, single, 15.5-V, 1.1-MHz operational amplifier

Data sheet: PDF | HTML

Start development

Software

Calculation tool

LM5140ADESIGN-CALC — LM5140 Dual Synchronous Buck Controller Design Tool - Quick Start Calculator

Welcome to the LM5140-1 quickstart design tool. This standalone tool facilitates and assists the power supply engineer with the design of a DC/DC synchronous buck converter based on the LM5140-Q1 current-mode controller. As such, the user can expeditiously arrive at an optimized design to meet (...)

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Supported products & hardware

Supported products & hardware

Products
AC/DC & DC/DC controllers (external FET)
LM5140-Q1 — Wide Vin Dual 2.2MHz low Iq Synchronous Buck Controller
Hardware development
Evaluation board
LM5140RWGEVM — LM5140RWGEVM Dual Synchronous Buck Converter EVM LM5140RWGEVMHD — LM5140QRWGRQ1 Dual Synchronous Buck Converter High Density Evaluation Module (EVM)
Software
Calculation tool
LM5140ADESIGN-CALC — Quick Start Calculator for the LM5140-Q1
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LM5140ADESIGN-CALC — LM5140 Dual Synchronous Buck Controller Design Tool - Quick Start Calculator

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Latest version
Version: 01.00.00.0D
Release date: 31 Oct 2019
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LM5140 Dual Synchronous Buck Controller Design Tool - Quick Start Calculator (zip)  — 2018 K

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Products
AC/DC & DC/DC controllers (external FET)
LM5140-Q1 — Wide Vin Dual 2.2MHz low Iq Synchronous Buck Controller
Hardware development
Evaluation board
LM5140RWGEVM — LM5140RWGEVM Dual Synchronous Buck Converter EVM LM5140RWGEVMHD — LM5140QRWGRQ1 Dual Synchronous Buck Converter High Density Evaluation Module (EVM)
Software
Calculation tool
LM5140ADESIGN-CALC — Quick Start Calculator for the LM5140-Q1

Technical documentation

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Type Title Date
* Test report PMP20440 Test Results Dec. 07, 2017

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