LM76003-Q1 3.5V to 60V 3.5A/2.5A Synchronous Voltage Regulator | TI.com

LM76003-Q1 (ACTIVE) 3.5V to 60V 3.5A/2.5A Synchronous Voltage Regulator

 

Description

The LM76002-Q1/LM76003-Q1 regulator is an easy-to-use synchronous step-down DC-DC converter capable of driving up to 2.5 A (LM76002-Q1) or 3.5 A (LM76003-Q1) of load current from an input up to 60 V. The LM76002-Q1/LM76003-Q1 provides exceptional efficiency and output accuracy in a very small solution size. Peak current-mode control is employed. Additional features such as adjustable switching frequency, synchronization, FPWM option, power-good flag, precision enable, adjustable soft start, and tracking provide both flexible and easy-to-use solutions for a wide range of applications. Automatic frequency foldback at light load and optional external bias improve efficiency. This device requires few external components and has a pinout designed for simple PCB layout with best-in-class EMI (CISPR25) and thermal performance. Protection features include input undervoltage lockout, thermal shutdown, cycle-by-cycle current limit, and short-circuit protection. The LM76002-Q1/ LM76003-Q1 device is available in the WQFN 30-pin leadless package with wettable flanks.

Features

  • Qualified for Automotive Applications
  • AEC-Q100 Qualified With the Following Results:
    • Device Temperature Grade 1: –40°C to +125°C Ambient Operating Temperature
    • Device HBM ESD Classification Level 2
    • Device CDM ESD Classification Level C5
  • Integrated Synchronous Rectification
  • Input Voltage 3.5 V to 60 V (65 V Maximum)
  • Output Voltage 1 V to 95% VIN
  • 15-µA Quiescent Current in Regulation
  • Wide Voltage Conversion Range
    • tON-MIN = 65 ns (Typical)
    • tOFF-MIN = 95 ns (Typical)
  • System-Level Features
    • Synchronization to External Clock
    • Power-Good Flag
    • Adjustable Soft Start (6.3 ms Default)
  • Pin-Selectable FPWM Operation
  • Adjustable Frequency Range: 300 kHz to 2.2 MHz
  • High-Efficiency at Light-Load Architecture (PFM)
  • Protection Features
    • Cycle-by-Cycle Current Limit
    • Short-Circuit Protection With Hiccup Mode
    • Overtemperature Thermal Shutdown Protection
  • Create a Custom Design Using the LM76002/03-Q1 With the WEBENCH® Power Designer

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WEBENCH® Designer LM76003-Q1

  Min   Max Range
Vin  V 3.5 to 60.0V
Vout  V 1 to 57V
Iout  A ≤ 3.5A
Ambient Temp  °C -40 to 125°C

Parametrics

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Part number Order Vin (Min) (V) Vin (Max) (V) Vout (Min) (V) Vout (Max) (V) Iout (Max) (A) Regulated outputs (#) Switching frequency (Min) (kHz) Switching frequency (Max) (kHz) Iq (Typ) (mA) Features Control mode Duty cycle (Max) (%) Operating temperature range (C) Rating Package Group Type Package size: mm2:W x L (PKG)
LM76003-Q1 Order now 3.5     60     1     57     3.5     1     300     2200     0.015     Enable
Forced PWM
Frequency Synchronization
Light Load Efficiency
Over Current Protection
Power Good
Pre-Bias Start-Up
Synchronous Rectification
Tracking
Wettable Flanks Package    
Current Mode     98     -40 to 125     Automotive     WQFN | 30     Converter     30WQFN: 24 mm2: 4 x 6 (WQFN | 30)