2.7-V to 6-V, 0.5-A, fixed-frequency, step-down converter in SOT583 package

The TPS62851x is a family of

pin-to-pin 0.5-A, 1-A, 2-A (continuous), and 3-A

(peak) high efficiency, easy-to-use, synchronous step-down DC/DC converters. They are based

on a peak current mode control topology. Low resistive switches allow up to 2-A continuous output current and 3-A

peak current. The switching frequency is

internally fixed at 2.25 MHz and can also be synchronized to an external clock in the

range from 1.8 MHz to 4 MHz. In PWM/PFM mode, the TPS62851x automatically enters

power save mode at light loads to maintain high efficiency across the whole load range. The

TPS62851x provide a 1% output voltage accuracy in PWM mode, which helps design a

power supply with high output voltage accuracy. The SS/TR

pin allows setting the start-up time or tracking the output voltage to an external source,

which allows external sequencing of different supply rails and limits the inrush current

during start-up.

The TPS62851x is available

in an 8-pin 1.60-mm × 2.10-mm SOT583 package, offering a high power density solution.