LM76002RNPT Description

The LM76002RNPT  regulator is an easy-to-use synchronous buck DC-DC converter that can drive up to 2.5A (LM76002) or 3.5A (LM76003) load current from the input, up to 60V. Peak current mode control is adopted. Other functions such as adjustable switching frequency, synchronization, FPWM options, power good marking, precision enabling, adjustable soft start and tracking provide flexible and easy-to-use solutions for a variety of applications. Light load automatic frequency return and optional external offset improve efficiency. The device requires only a few external components, has pins, is designed for a simple printed circuit board layout, and has the best-in-class electromagnetic interference (CISPR22) and thermal performance. Protection functions include input undervoltage locking, thermal turn-off, circulating current limitation and short-circuit protection. The LM76002RNPT device adopts WQFN 30-pin lead-free package, and the side can be wet.

LM76002RNPT  Features

? 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

LM76002RNPT  Applications

? Telecommunications infrastructure

? Asset and fleet management systems

? Video surveillance

? Programmable logic controllers