The LM46002 regulator is an easy-to-use synchronous step-down DC/DC converter capable of
driving up to 2 A of load current from an input voltage ranging from 3.5 V to 60 V. The LM46002
provides exceptional efficiency, output accuracy and drop-out voltage in a very small solution
size. An extended family is available in various load current options and 36-V maximum input
voltage in pin-to-pin compatible packages, including LM46001, LM46000, LM43603, LM43602, LM43601
and LM43600. Peak-current-mode control is employed to achieve simple control-loop compensation and
cycle-by-cycle current limiting. Optional features such as programmable switching frequency,
synchronization, power-good flag, precision enable, internal soft start, extendable soft start, and
tracking provide a flexible and easy-to-use platform for a wide range of applications.
Discontinuous conduction and automatic frequency reduction at light loads improve light load
efficiency. The family requires few external components. Pin arrangement allows simple, optimum PCB
layout. Protection features include thermal shutdown, VCC undervoltage
lockout, cycle-by-cycle current limit, and output short-circuit protection. The LM46002 device is
available in the 16-lead HTSSOP / PWP package (6.6 mm × 5.1 mm × 1.2 mm) with 0.65-mm lead pitch.