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PMP15032

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

Design files

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
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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 — PMP15032
TIDUDC4.PDF (1222 KB)

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

download Assembly drawing — PMP15032
TIDRRM8.PDF (187 KB)

Detailed overview of design layout for component placement

download Bill of materials (BOM) — PMP15032
TIDRRM7.PDF (31 KB)

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

download CAD/CAE symbol — PMP15032
TIDRRN0.ZIP (1056 KB)

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

download Gerber file — PMP15032
TIDCDL5.ZIP (586 KB)

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

download PCB layout — PMP15032
TIDRRM9.PDF (1455 KB)

PCB layer plot file used for generating PCB design layout

download Schematic — PMP15032
TIDRRM6.PDF (234 KB)

Detailed schematic diagram for design layout and components

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 (...)

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
Reference design
PMP15032 — Automotive High Current, Wide VIN Synchronous Buck Controller Reference Design Featuring LM5140-Q1 TIDA-01534 — Automotive Off-battery Dual-phase Boost Converter Reference Design TIDA-01553 — Automotive Off-battery VCM Supporting 2.5-V Cold Crank Profile Reference Design
Evaluation board
LM5140RWGEVM — LM5140RWGEVM Dual Synchronous Buck Converter EVM LM5140RWGEVMHD — LM5140QRWGRQ1 Dual Synchronous Buck Converter High Density Evaluation Module (EVM)
Download options

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: Oct 31, 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
Reference design
PMP15032 — Automotive High Current, Wide VIN Synchronous Buck Controller Reference Design Featuring LM5140-Q1 TIDA-01534 — Automotive Off-battery Dual-phase Boost Converter Reference Design TIDA-01553 — Automotive Off-battery VCM Supporting 2.5-V Cold Crank Profile Reference Design
Evaluation board
LM5140RWGEVM — LM5140RWGEVM Dual Synchronous Buck Converter EVM LM5140RWGEVMHD — LM5140QRWGRQ1 Dual Synchronous Buck Converter High Density Evaluation Module (EVM)

Release Information

The design resource accessed as www.ti.com/lit/zip/snvc191 or www.ti.com/lit/xx/snvc191d/snvc191d.zip has been migrated to a new user experience at www.ti.com/tool/download/SNVC191. Please update any bookmarks accordingly.

Technical documentation

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Type Title Date
* Test report PMP15032 Test Results Jun 28, 2017

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Disclaimer
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