LM5143DESIGN-CALC

LM5143-Q1, LM5143A-Q1, LM5143, LM25143-Q1 and LM25143 controller quick start design tool

LM5143DESIGN-CALC

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Overview

This stand-alone tool facilitates and assists with the design of a DC/DC buck regulator based on the LM5143-Q1 synchronous buck DC/DC controller with low IQ. The user can expeditiously arrive at an optimized design to meet the application requirements.

Features
  • Configure the controller for dual-output, two-phase or multi-phase configurations
  • 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
  • Review auto-generated schematic and BOM list
  • Determine EMI filter components and spread spectrum modulating frequency
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Calculation tool

LM5143DESIGN-CALC LM5143-Q1 Controller Quickstart Design Tool

Supported products & hardware

Supported products & hardware

Products
Buck controllers (external switch)
LM25143 3.5-V to 42-V, dual-output, stackable, synchronous buck DC/DC controller with ultra-low IQ LM25143-Q1 Automotive, 3.5-V to 42-V low-Iq, dual output, stackable synchronous buck DC-DC controller LM5143 3.5-V to 65-V, dual-output, stackable, synchronous buck DC/DC controller with ultra-low IQ LM5143-Q1 3.5-V to 65-V low Iq, dual, 2-phase synchronous buck DC-DC controller LM5143A-Q1 Automotive, 3.5-V to 65-V low-IQ, dual output, stackable synchronous buck DC-DC controller
Hardware development
Evaluation board
LM5143-Q1EVM-2100 Dual-channel automotive synchronous buck controller evaluation module

LM5143DESIGN-CALC LM5143-Q1 Controller Quickstart Design Tool

close
Latest version
Version: 01.00.00.0F
Release date: 09 May 2022
Products
Buck controllers (external switch)
LM25143 3.5-V to 42-V, dual-output, stackable, synchronous buck DC/DC controller with ultra-low IQ LM25143-Q1 Automotive, 3.5-V to 42-V low-Iq, dual output, stackable synchronous buck DC-DC controller LM5143 3.5-V to 65-V, dual-output, stackable, synchronous buck DC/DC controller with ultra-low IQ LM5143-Q1 3.5-V to 65-V low Iq, dual, 2-phase synchronous buck DC-DC controller LM5143A-Q1 Automotive, 3.5-V to 65-V low-IQ, dual output, stackable synchronous buck DC-DC controller
Hardware development
Evaluation board
LM5143-Q1EVM-2100 Dual-channel automotive synchronous buck controller evaluation module

Release Information

The design resource accessed as www.ti.com/lit/zip/snvc229 or www.ti.com/lit/xx/snvc229f/snvc229f.zip has been migrated to a new user experience at www.ti.com/tool/download/SNVC229. Please update any bookmarks accordingly.

Additional resources you might need

Calculation tool

LM5143DESIGN-CALC LM5143-Q1 Controller Quickstart Design Tool

Supported products & hardware

Supported products & hardware

Products
Buck controllers (external switch)
LM25143 3.5-V to 42-V, dual-output, stackable, synchronous buck DC/DC controller with ultra-low IQ LM25143-Q1 Automotive, 3.5-V to 42-V low-Iq, dual output, stackable synchronous buck DC-DC controller LM5143 3.5-V to 65-V, dual-output, stackable, synchronous buck DC/DC controller with ultra-low IQ LM5143-Q1 3.5-V to 65-V low Iq, dual, 2-phase synchronous buck DC-DC controller LM5143A-Q1 Automotive, 3.5-V to 65-V low-IQ, dual output, stackable synchronous buck DC-DC controller
Hardware development
Evaluation board
LM5143-Q1EVM-2100 Dual-channel automotive synchronous buck controller evaluation module

LM5143DESIGN-CALC LM5143-Q1 Controller Quickstart Design Tool

close
Latest version
Version: 01.00.00.0F
Release date: 09 May 2022
Products
Buck controllers (external switch)
LM25143 3.5-V to 42-V, dual-output, stackable, synchronous buck DC/DC controller with ultra-low IQ LM25143-Q1 Automotive, 3.5-V to 42-V low-Iq, dual output, stackable synchronous buck DC-DC controller LM5143 3.5-V to 65-V, dual-output, stackable, synchronous buck DC/DC controller with ultra-low IQ LM5143-Q1 3.5-V to 65-V low Iq, dual, 2-phase synchronous buck DC-DC controller LM5143A-Q1 Automotive, 3.5-V to 65-V low-IQ, dual output, stackable synchronous buck DC-DC controller
Hardware development
Evaluation board
LM5143-Q1EVM-2100 Dual-channel automotive synchronous buck controller evaluation module

Release Information

The design resource accessed as www.ti.com/lit/zip/snvc229 or www.ti.com/lit/xx/snvc229f/snvc229f.zip has been migrated to a new user experience at www.ti.com/tool/download/SNVC229. Please update any bookmarks accordingly.

Supported products & hardware

Buck controllers (external switch)
LM25143 3.5-V to 42-V, dual-output, stackable, synchronous buck DC/DC controller with ultra-low IQ LM25143-Q1 Automotive, 3.5-V to 42-V low-Iq, dual output, stackable synchronous buck DC-DC controller LM5143 3.5-V to 65-V, dual-output, stackable, synchronous buck DC/DC controller with ultra-low IQ LM5143-Q1 3.5-V to 65-V low Iq, dual, 2-phase synchronous buck DC-DC controller LM5143A-Q1 Automotive, 3.5-V to 65-V low-IQ, dual output, stackable synchronous buck DC-DC controller
Evaluation board
LM5143-Q1EVM-2100 Dual-channel automotive synchronous buck controller evaluation module

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