LM76002/LM76003 Synchronous Step-Down Voltage Converters

Texas Instruments' LM76002 and LM76003 are 3.5 V to 60 V, 2.5 A/3.5 A synchronous step-down voltage regulators

Image of Texas Instruments' LM76002/LM76003 Synchronous Step-Down Voltage ConvertersTexas Instruments' LM76002 and LM76003 regulators are easy-to-use synchronous step-down DC-DC converters capable of driving up to 2.5 A (LM76002) or 3.5 A (LM76003) of load current from an input up to 60 V. The LM76002 and LM76003 provide 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. These devices require few external components and have a pinout designed for simple PCB layout with best-in-class EMI (CISPR22) and thermal performance. Protection features include thermal shutdown, input undervoltage lockout, cycle-by-cycle current limit, and short-circuit protection. The LM76002 and LM76003 devices are available in the WQFN 30-pin leadless package with wettable flanks.

Features
  • Integrated synchronous rectification
  • Input voltage 3.5 V to 60 V (65 V max.)
  • Output current:
    • LM76002: 2.5 A
    • LM76003: 3.5 A
  • Output voltage 1 V to 95% VIN
  • 15 µA quiescent current in regulation
  • Wide voltage conversion range
    • tON-MIN = 65 ns (typ.)
    • tOFF-MIN = 95 ns (typ.)
  • Create a custom design using the LM76002/LM76003 with the WEBENCH® Power Designer
  • System-level features
    • Synchronization to external clock
    • Power-good flag
    • Precision enable
    • Adjustable soft start (6.3 ms default)
    • Voltage tracking capability
  • Pin-selectable FPWM operation
  • High-efficiency at light-load architecture (PFM)
  • Protection features
    • Cycle-by-cycle current limit
    • Short-circuit protection with hiccup mode
    • Overtemperature thermal shutdown protection
Applications
  • Telecommunications infrastructure
  • Asset and fleet management systems
  • Video surveillance
  • Programmable logic controllers

LM76002/LM76003 Synchronous Step-Down Voltage Converters

ImageManufacturer Part NumberDescriptionAvailable QuantityView Details
IC REG BUCK ADJ 2.5A 30WQFNLM76002RNPTIC REG BUCK ADJ 2.5A 30WQFN889 - ImmediateView Details
IC REG BUCK ADJ 3.5A SYNC 30WQFNLM76003RNPTIC REG BUCK ADJ 3.5A SYNC 30WQFN3167 - ImmediateView Details
IC REG BUCK ADJ 2.5A 30WQFNLM76002RNPRIC REG BUCK ADJ 2.5A 30WQFN0View Details
IC REG BUCK ADJ 3.5A SYNC 30WQFNLM76003QRNPRQ1IC REG BUCK ADJ 3.5A SYNC 30WQFN9000 - Factory StockView Details
IC REG BUCK ADJ 2.5A 30WQFNLM76002QRNPRQ1IC REG BUCK ADJ 2.5A 30WQFN0View Details

Evaluation Board

ImageManufacturer Part NumberDescriptionAvailable QuantityView Details
EVAL BOARD FOR LM76002LM76002EVM-500KEVAL BOARD FOR LM7600285 - Factory StockView Details
Published: 2018-03-15