LM25149-Q1EVM-2100

LM25149-Q1 5.5-V to 36-V, low IQ, synchronous buck DC/DC controller evaluation module

LM25149-Q1EVM-2100

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Overview

The LM25149-Q1EVM-2100 high-density evaluation module (EVM) is designed to showcase the performance of the LM25149-Q1 high-performance, automotive synchronous buck DC/DC buck controller. It operates over a wide input voltage range of 5.5 V to 36 V to deliver a fixed 5-V output with better than 1% setpoint accuracy and up to 8-A output current. The LM25149-Q1 offers advanced EMI performance and ultra-low IQ. Regulator features during fault conditions include: undervoltage lockout, internal soft-start, hiccup-mode overcurrent protection and thermal shutdown. Open-drain PGOOD indicator and SYNC IN / SYNC OUT features are also provided.

Features
  • 5.5-V to 36-V input voltage range
  • 5-V output voltage with 1% setpoint accuracy
  • Rated for 8 A of load current
  • Ultra-low IQ
  • Dual-random spread spectum and active EMI filtering for advance EMI mitigation
  • Fully assembled, tested and proven PCB layout with small footprint
AC/DC & DC/DC controllers (external FET)
LM25148 42-V synchronous buck DC/DC controller with ultra-low IQ LM25148-Q1 Automotive 42-V synchronous buck DC/DC controller with ultra-low IQ LM25149 42-V synchronous buck DC/DC controller with ultra-low IQ and integrated active EMI filter LM25149-Q1 42-V automotive synchronous buck DC/DC controller with ultra-low IQ and integrated active EMI filter LM5148 3.5-V to 80-V, current mode synchronous buck controller LM5148-Q1 Automotive, 80V synchronous buck DC/DC controller with ultra-low IQ LM5149 80-V synchronous buck DC/DC controller with ultra-low IQ and integrated active EMI filter LM5149-Q1 80-V automotive synchronous buck DC/DC controller with ultra-low IQ and integrated active EMI filter
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Evaluation board

LM25149-Q1EVM-2100 — LM25149-Q1 5.5-V to 36-V, low IQ, synchronous buck DC/DC controller evaluation module

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Calculation tool

LM5149-LM25149DESIGN-CALC — LM25149 Design Calculation Tool

Supported products & hardware
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LM5149-LM25149DESIGN-CALC LM25149 Design Calculation Tool

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Version: 01.00.00.0B
Release date: 12 Oct 2022
download LM25149 Design Calculation Tool (zip)  — 4226 K

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Products
AC/DC & DC/DC controllers (external FET)
LM25149 42-V synchronous buck DC/DC controller with ultra-low IQ and integrated active EMI filter LM25149-Q1 42-V automotive synchronous buck DC/DC controller with ultra-low IQ and integrated active EMI filter LM5149 80-V synchronous buck DC/DC controller with ultra-low IQ and integrated active EMI filter LM5149-Q1 80-V automotive synchronous buck DC/DC controller with ultra-low IQ and integrated active EMI filter
Hardware development
Evaluation board
LM25149-Q1EVM-2100 LM25149-Q1 5.5-V to 36-V, low IQ, synchronous buck DC/DC controller evaluation module

Release Infomation

The design resource accessed as www.ti.com/lit/zip/snvr496 or www.ti.com/lit/xx/snvr496b/snvr496b.zip has been migrated to a new user experience at www.ti.com/tool/download/SNVR496. Please update any bookmarks accordingly.
Calculation tool

LM5148-LM25148DESIGN-CALC — LM5148/-Q1 and LM25148/-Q1 controller quickstart design tool

Supported products & hardware
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LM5148-LM25148DESIGN-CALC LM5148/-Q1 and LM25148/-Q1 controller quickstart design tool

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Version: A4
Release date: 19 Sep 2024

LM(2)5148/-Q1 quickstart calculator

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Products
AC/DC & DC/DC controllers (external FET)
LM5148 3.5-V to 80-V, current mode synchronous buck controller LM5148-Q1 Automotive, 80V synchronous buck DC/DC controller with ultra-low IQ LM25148 42-V synchronous buck DC/DC controller with ultra-low IQ LM25148-Q1 Automotive 42-V synchronous buck DC/DC controller with ultra-low IQ
Hardware development
Evaluation board
LM5149-Q1EVM-400 LM5149-Q1 evaluation module, 72-V, low-IQ, synchronous buck DC/DC controller with active EMI filter LM25149-Q1EVM-2100 LM25149-Q1 5.5-V to 36-V, low IQ, synchronous buck DC/DC controller evaluation module

Release Infomation

Welcome to the quickstart design calculator tool for the LM5148, LM5148-Q1, LM25148 and LM25148-Q1. This standalone tool facilitates and assists the power supply engineer with the design of a DC/DC buck regulator based on the LM(2)5148/-Q1 controller family. As such, the user can expeditiously arrive at an optimized design to meet the application requirements.

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

Design files

Technical documentation

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* User guide LM25149-Q1 EVM User's Guide (Rev. A) PDF | HTML 29 Apr 2022
Certificate LM25149-Q1EVM-2100 EU Declaration of Conformity (DoC) 17 Mar 2021

Related design resources

Hardware development

EVALUATION BOARD
LM5149-Q1EVM-400 LM5149-Q1 evaluation module, 72-V, low-IQ, synchronous buck DC/DC controller with active EMI filter

Design tools & simulation

CALCULATION TOOL
LM5149-LM25149DESIGN-CALC LM5149 and LM25149 controller quickstart design tool

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