The LM46001-Q1 regulator is an easy-to-use synchronous step-down DC-DC converter capable
of driving up to 1 A of load current from an input voltage ranging from 3.5 V to 60 V. The
LM46001-Q1 provides exceptional efficiency, output accuracy and drop-out voltage in a very small
solution size. An extended family is available in 0.5-A and 2-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 reduction at light loads improve light load
efficiency. The family requires few external components and 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 LM46001-Q1 device
is available in the 16-pin HTSSOP (PWP) package (6.6 mm × 5.1 mm × 1.2 mm) with
0.65-mm lead pitch. The device is pin-to-pin compatible with LM4360x and LM4600x families. The
LM46001A-Q1 version is optimized for PFM operation and recommended for new designs.
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