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LM76005

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3.5-V to 60-V, 5-A synchronous step-down voltage converter

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Product details

Parameters

Vin (Min) (V) 3.5 Vin (Max) (V) 60 Vout (Min) (V) 1 Vout (Max) (V) 57 Iout (Max) (A) 5 Iq (Typ) (mA) 0.015 Iq (Typ) (uA) 15 Switching frequency (Min) (kHz) 200 Switching frequency (Max) (kHz) 500 Features Enable, Forced PWM, Frequency Synchronization, Light Load Efficiency, Over Current Protection, Power Good, Pre-Bias Start-Up, Synchronous Rectification, Tracking, Wettable Flanks Package Operating temperature range (C) -40 to 125 Rating Catalog Regulated outputs (#) 1 open-in-new Find other Buck converters (integrated switch)

Package | Pins | Size

WQFN (RNP) 30 24 mm² 6 x 4 open-in-new Find other Buck converters (integrated switch)

Features

  • Functional Safety-Capable

    • Documentation available to aid functional safety system design

  • Designed for applications
    • Input transient protection up to 65 V
    • Optimized for low EMI requirements

    • Pin-selectable FPWM operation
    • Adjustable frequency range: 200 kHz to 500 kHz
    • Start up with pre-biased output voltage
    • Protection features: thermal shutdown, input undervoltage lockout, cycle-by-cycle current limit, hiccup short-circuit protection
  • Suited for scalable power supplies
    • Pin compatible with:
      • LM76002/3 (60 V, 2.5 A or 3.5 A)
    • Output voltage: 1 V to 95% of VIN
    • Synchronization to external clock
    • Adjustable soft-start (6.3 ms default)
  • Low power dissipation across load spectrum
    • 15-µA quiescent current in regulation
    • 95% efficiency at 400 kHz (12VIN, 5VOUT, 2A)
    • 92% PFM efficiency at 10-mA (12VIN, 5VOUT)
    • External bias option for improved efficiency
  • Create a custom design using the with the

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Description

The regulator is an easy-to-use synchronous step-down DC-DC converter capable of driving up to of load current from an input up to 60 V. Tolerance goes up to 65 V, easing input surge protection.

The use peak-current-mode control to provide exceptional efficiency and output accuracy in a small solution size. Seamless transition between PWM and PFM modes, along with very low MOSFET ON resistances and an external bias input, ensures exceptional efficiency across the entire load range.

This device requires few external components and has a pinout designed for simple PCB layout with best-in-class EMI and thermal performance. The small solution size and feature set of the LM76005 are designed to simplify the implementation for a wide range of end equipment.

The device is available in the WQFN 30-pin leadless package with wettable flanks.

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Technical documentation

= Top documentation for this product selected by TI
No results found. Please clear your search and try again. View all 3
Type Title Date
* Datasheet LM76005 3.5-V to 60-V, 5-A Synchronous Step-Down Voltage Regulator datasheet (Rev. A) Jul. 28, 2020
User guides LMQ76005EVM User’s Guide (Rev. A) Jul. 21, 2020
Technical articles Minimize the impact of the MLCC shortage on your power application Mar. 29, 2019

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Hardware development

EVALUATION BOARDS Download
document-generic User guide
49
Description
The LM76005QEVM evaluation module (EVM) is a fully assembled and tested circuit for evaluating the LM76005 and LM76005-Q1 synchronous step-down converters. The EVM operates from an 3.5-V to 60-V input and provides a 3.3-V or 5-V output at 5 A.
Features
  • EMI enhanced QFN package
  • Thermally optimized for high power density
  • Small solution size with low BOM count

Design tools & simulation

SIMULATION TOOLS Download
PSpice® for TI design and simulation tool
PSPICE-FOR-TI — PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
Features
  • Leverages Cadence PSpice Technology
  • Preinstalled library with a suite of digital models to enable worst-case timing analysis
  • Dynamic updates ensure you have access to most current device models
  • Optimized for simulation speed without loss of accuracy
  • Supports simultaneous analysis of multiple products
  • (...)

CAD/CAE symbols

Package Pins Download
WQFN (RNP) 30 View options

Ordering & quality

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