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LM76005

ACTIVE

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

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Data sheet

LM76005

ACTIVE
Data sheet Order now

Product details

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 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 TI functional safety category Functional Safety-Capable Regulated outputs (#) 1 Control mode current mode Duty cycle (max) (%) 98 Type Converter
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 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 TI functional safety category Functional Safety-Capable Regulated outputs (#) 1 Control mode current mode Duty cycle (max) (%) 98 Type Converter
WQFN (RNP) 30 24 mm² 6 x 4

  • 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

  • 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

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.

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

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Type Title Date
* Data sheet LM76005 3.5-V to 60-V, 5-A Synchronous Step-Down Converter datasheet (Rev. A) PDF | HTML 28 Jul 2020
Functional safety information LM76005 Functional Safety, FIT Rate, Failure Mode Distribution and Pin FMA PDF | HTML 17 Dec 2020
EVM User's guide LM76005QEVM User’s Guide (Rev. A) PDF | HTML 21 Jul 2020
Technical article Minimize the impact of the MLCC shortage on your power application 29 Mar 2019

Design & development

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

Evaluation board

LM76005QEVM — 3.5-V to 60-V, 5-A synchronous step-down voltage converter evaluation module

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.
User guide: PDF | HTML
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Simulation tool

PSPICE-FOR-TI — PSpice® for TI design and simulation tool

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 (...)
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Reference designs

PMP23300 — 60-W, USB Type-C® power delivery wide-input buck converter reference design

This reference design is a 60-W USB Type-C® power delivery (PD) design operating in standard power range (SPR) that uses the TPS65987D USB Type-C and USB PD controller, LM76005 synchronous buck converter, LMR36506 synchronous buck converter and TPD62300A USB Type-C port protector. The design uses (...)
Test report: PDF
Package Pins Download
WQFN (RNP) 30 View options
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