1 Features
1• Integrated synchronous rectification
• Input voltage 3.5 V to 60 V (65 V maximum)
• 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 (typical)
– tOFF-MIN = 95 ns (typical)
• 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
• 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/LM76003 with the WEBENCH® Power
Designer

2 Applications
• Telecommunications infrastructure
• Asset and fleet management systems
• Video surveillance
• Programmable logic controllers

3 Description
The LM76002/LM76003 regulator is an easy-to-use
synchronous step-down DC-DC converter 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/LM76003 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 (CISPR22) and
thermal performance. Protection features include
input undervoltage lockout, thermal shutdown, cycleby-
cycle current limit, and short-circuit protection. The
LM76002/LM76003 device is available in the WQFN
30-pin leadless package with wettable flanks.