PMP15041

25W Automotive Start-Stop Reference Design Operating at 2.2 MHz

PMP15041

Design files

Overview

Automotive 12V batteries typically operate in the range of 9V-16V. However this voltage can vary widely due to transient conditions such as cold crank and load dump. This reference design creates a well-regulated 25W (5V,5A) output, regardless of large input voltage transients, utilizing the LM5150-Q1 and LM5141-Q1. The LM5150-Q1 is implemented as a pre-boost, only switching when the input voltage is below 6.8V, and utilizes the inductor as a differential EMI filter when not switching. The LM5141-Q1 operates as a buck controller regulating  the 5V output. Both devices switch at 2.2 MHz.

Features
  • 2.8V minimum input voltage
  • 25W output peak power (5V, 5A)
  • 2.2MHz switching frequency
Output voltage options PMP15041.1
Vin (Min) (V) 2.8
Vin (Max) (V) 40
Vout (Nom) (V) 5
Iout (Max) (A) 5
Output Power (W) 25
Isolated/Non-Isolated Non-Isolated
Input Type DC
Topology Boost- Non Sync^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.

TIDT001.PDF (1332 K)

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

TIDRVT8.PDF (281 K)

Detailed schematic diagram for design layout and components

TIDRVT9.PDF (64 K)

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

TIDRVU0.PDF (224 K)

Detailed overview of design layout for component placement

TIDRVU2.ZIP (1194 K)

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

TIDCEJ8.ZIP (516 K)

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

TIDRVU1.PDF (818 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)

LM5141-Q1Automotive wide-input 2.2-MHz low-IQ synchronous buck controller

Data sheet: PDF | HTML
AC/DC & DC/DC controllers (external FET)

LM5150-Q1Automotive 1.5-V to 42-V VIN, low IQ boost controller with 6.8V, 7.5V, 8.5V, 10.5V output options

Data sheet: PDF | HTML

Start development

Software

Calculation tool

LM5141DESIGN-CALC LM5141-Q1 controller quickstart design tool

Welcome to the LM5141-Q1 quickstart design tool. This standalone tool facilitates and assists the power supply engineer with design of a DC/DC buck regulator based on the LM5141-Q1 65-V synchronous buck DC/DC controller with low IQ. As such, the user can expeditiously arrive at an optimized design (...)
Supported products & hardware

Supported products & hardware

Products
AC/DC & DC/DC controllers (external FET)
LM5141 Low Iq, Wide Input Range Synchronous Buck Controller LM5141-Q1 Automotive wide-input 2.2-MHz low-IQ synchronous buck controller
Hardware development
Evaluation board
LM5141QRGEVM LM5141QRG Synchronous Buck Converter Evaluation Module
Software
Calculation tool
LM5141DESIGN-CALC LM5141-Q1 controller quickstart design tool

Technical documentation

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Type Title Date
* Test report 25-W, Automotive, Start-Stop Reference Design Operating at 2.2 MHz Mar. 01, 2018

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