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LM25141DESIGN-CALC

LM25141-Q1 controller quickstart design tool

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LM25141DESIGN-CALC

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Overview

Welcome to the LM25141-Q1 quickstart calculator design tool. This standalone tool facilitates and assists the power supply engineer with design of a DC/DC buck regulator based on the LM25141-Q1 42-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

LM25141DESIGN-CALC — LM25141-Q1 controller quickstart design tool

Supported products & hardware

Supported products & hardware

Products
AC/DC & DC/DC controllers (external FET)
LM25141 — Low Iq, Wide Input Range Synchronous Buck Controller LM25141-Q1 — Automotive 2.2-MHz, low-IQ synchronous buck controller with frequency spread spectrum
Hardware development
Evaluation board
LM5141QRGEVM — LM5141QRG Synchronous Buck Converter Evaluation Module
Download

LM25141DESIGN-CALC — LM25141-Q1 controller quickstart design tool

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Latest version
Version: 01.00.00.0A
Release date: 12 Sep 2023
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LM25141/-Q1 controller quickstart calculator  — 1598 K

LM25141 and LM25141-Q1 controller quickstart calculator tool

MD5 checksum
Products
AC/DC & DC/DC controllers (external FET)
LM25141 — Low Iq, Wide Input Range Synchronous Buck Controller LM25141-Q1 — Automotive 2.2-MHz, low-IQ synchronous buck controller with frequency spread spectrum
Hardware development
Evaluation board
LM5141QRGEVM — LM5141QRG Synchronous Buck Converter Evaluation Module

Additional resources you might need

Calculation tool

LM25141DESIGN-CALC — LM25141-Q1 controller quickstart design tool

Supported products & hardware

Supported products & hardware

Products
AC/DC & DC/DC controllers (external FET)
LM25141 — Low Iq, Wide Input Range Synchronous Buck Controller LM25141-Q1 — Automotive 2.2-MHz, low-IQ synchronous buck controller with frequency spread spectrum
Hardware development
Evaluation board
LM5141QRGEVM — LM5141QRG Synchronous Buck Converter Evaluation Module
Download

LM25141DESIGN-CALC — LM25141-Q1 controller quickstart design tool

close
Latest version
Version: 01.00.00.0A
Release date: 12 Sep 2023
open-in-new

View all versions

download

LM25141/-Q1 controller quickstart calculator  — 1598 K

LM25141 and LM25141-Q1 controller quickstart calculator tool

MD5 checksum
Products
AC/DC & DC/DC controllers (external FET)
LM25141 — Low Iq, Wide Input Range Synchronous Buck Controller LM25141-Q1 — Automotive 2.2-MHz, low-IQ synchronous buck controller with frequency spread spectrum
Hardware development
Evaluation board
LM5141QRGEVM — LM5141QRG Synchronous Buck Converter Evaluation Module

Technical documentation

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

Related design resources

Reference designs

REFERENCE DESIGN
PMP21107 — Wide input synchronous buck converter reference design with frequency spread spectrum

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