The LM43602 SIMPLE SWITCHER® 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 36 V (42 V abs max). The LM43602 provides
exceptional efficiency, output accuracy and dropout voltage in a very small solution size. An
extended family is available in 0.5 A,1 A, and 3 A load current options in pin to pin compatible
packages. 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 modulation at light loads improve light load
efficiency. The family requires few external components and terminal arrangement allows simple,
optimum PCB layout. Protection features include thermal shutdown, VCC
under-voltage lockout, cycle-by-cycle current limit, and output short circuit protection. The
LM43602 device is available in the HTSSOP / PWP 16 leaded package (5.1 mm x 6.6 mm x1.2 mm) and
VSON-16 package with wettable flanks.
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