PMP15032

Automotive High Current, Wide VIN Synchronous Buck Controller Reference Design Featuring LM5140-Q1

PMP15032

Design files

Overview

PMP15032 demonstrates the operation and performance of the LM5140-Q1 synchronous buck controller in a high current dual-phase application. The PMP15032 operates over the input voltage range of 5.5 to 42V. The EVM provides a 5.0V output with a maximum load current of 45A (22.5A per phase). The LM5140-Q1 switching frequency is set to 440 kHz to minimize switching losses and obtain maximum efficiency.

Features

5.5V to 42VIN, 5VOUT @ 45A, 22.5A per phase
93.54% efficiency
Solution size: 2.5 inch x 3.8 inch maximum component height: 0.25 inch

Output voltage options	PMP15032.1
Vin (Min) (V)	5.5
Vin (Max) (V)	42
Vout (Nom) (V)	5
Iout (Max) (A)	45
Output Power (W)	225
Isolated/Non-Isolated	Non-Isolated
Input Type	DC
Topology	Buck- Synchronous

Industrial

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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

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Test report — PMP15032

TIDUDC4.PDF (1222 K)

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

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Schematic — PMP15032

TIDRRM6.PDF (233 K)

Detailed schematic diagram for design layout and components

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Bill of materials (BOM) — PMP15032

TIDRRM7.PDF (30 K)

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

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Assembly drawing — PMP15032

TIDRRM8.PDF (186 K)

Detailed overview of design layout for component placement

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CAD/CAE symbol — PMP15032

TIDRRN0.ZIP (1056 K)

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

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Gerber file — PMP15032

TIDCDL5.ZIP (585 K)

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

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PCB layout — PMP15032

TIDRRM9.PDF (1454 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

Precision op amps (Vos<1mV)

LMP7701 — Precision, CMOS Input, RRIO, Wide Supply Range Single 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

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

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	PMP15032 Test Results		Jun. 28, 2017

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