LM5141DESIGN-CALC

LM5141-Q1 controller quickstart design tool

LM5141DESIGN-CALC

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Overview

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 to meet the application requirements.

Features

Determine buck inductance and input and output capacitances
Select components for soft-start, hiccup-mode restart, OCP, switching frequency and output voltage setpoint(s)
Optimize compensation values and pole/zero placement in terms of control loop stability using crossover frequency as a performance metric
Inspect regulator efficiency, solution size and component power dissipations with ambient temperature as a parameter
Review auto-generated schematic and BOM list
Determine EMI filter components and spread spectrum modulating frequency

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Calculation tool

LM5141DESIGN-CALC — LM5141-Q1 controller quickstart design tool

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= Requires export approval (1 minute)

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

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Download

LM5141DESIGN-CALC — LM5141-Q1 controller quickstart design tool

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Latest version

Version: 01.00.00.0B

Release date: 13 Sep 2023

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View all versions

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snvc236.zip — 1598 K

LM5141/-Q1 controller quickstart calculator tool

MD5 checksum

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

Release Information

The design resource accessed as www.ti.com/lit/zip/snvc198 or www.ti.com/lit/xx/snvc198b/snvc198b.zip has been migrated to a new user experience at www.ti.com/tool/download/SNVC198. Please update any bookmarks accordingly.

Additional resources you might need

Calculation tool

LM5141DESIGN-CALC — LM5141-Q1 controller quickstart design tool

lock

= Requires export approval (1 minute)

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

lock

Download

LM5141DESIGN-CALC — LM5141-Q1 controller quickstart design tool

close

Latest version

Version: 01.00.00.0B

Release date: 13 Sep 2023

open-in-new

View all versions

download

snvc236.zip — 1598 K

LM5141/-Q1 controller quickstart calculator tool

MD5 checksum

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

Release Information

The design resource accessed as www.ti.com/lit/zip/snvc198 or www.ti.com/lit/xx/snvc198b/snvc198b.zip has been migrated to a new user experience at www.ti.com/tool/download/SNVC198. Please update any bookmarks accordingly.

Technical documentation

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	Type	Title		Date
	EVM User's guide	LM5141-Q1 EVM User’s Guide (Rev. A)		10 Jan 2018

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LM5141DESIGN-CALC

LM5141-Q1 controller quickstart design tool