LM5143-Q1EVM-2100

Dual-channel automotive synchronous buck controller evaluation module

LM5143-Q1EVM-2100

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Overview

The LM5143-Q1-EVM2100 high density evaluation module (EVM) is designed to showcase the performance of the LM5143-Q1 high performance, dual-channel, automotive synchronous buck DC/DC buck controller. It operates over a wide input voltage range of 3.5 V to 36 V to deliver fixed 5-V and 3.3-V outputs with better than 1% setpoint accuracy and currents up to 7 A per channel. By virtue of the LM5143-Q1's minimum on-time of 65 ns, operation at very low duty cycle is feasible. The LM5143-Q1 offers a full suite of protection features to ensure protection of the regulator during fault conditions. These include undervoltage lockout to ensure proper operation during voltage-sag conditions, programmable soft-start to reduce inrush current, hiccup-mode overcurrent protection and thermal shutdown. Open-drain PGOOD indicator and SYNC IN /  SYNC OUT features are also provided.

Features
  • 3.5-V to 36-V input voltage range
  • 5-V and 3.3-V output voltages with 1% setpoint accuracy
  • Rated for up to 7 A of load current per channel
  • Automotive grade power stage components, including MOSFETs, inductors and capacitors
  • 2.1-MHz switching synchronizable up or down with external clock
  • Fully assembled, tested and proven PCB layout with small footprint
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
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LM5143-Q1EVM-2100 — Dual-channel automotive synchronous buck controller evaluation module

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Latest version
Version: 01.00.00.0F
Release date: 09 May 2022

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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 Infomation

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.
TI's Standard Terms and Conditions for Evaluation Items apply.

Design files

Technical documentation

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Type Title Date
* EVM User's guide LM5143-Q1 EVM User's Guide (Rev. B) 16 Apr 2020
Certificate LM5143-Q1EVM-2100 EU Declaration of Conformity (DoC) 25 Apr 2019

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LM5143DESIGN-CALC LM5143-Q1, LM5143A-Q1, LM5143, LM25143-Q1 and LM25143 controller quick start design tool

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