DESCRIPTION

· The MAX77839 is a highly-efficient buck-boost regulator with a quiescent current of 6μA.

· It supports input voltages from 1.8V to 5.5V and output voltages from 2.3V to 5.3V.

· Features two switching current limits (4.4A and 3.6A) and GPIO pin configurations for design flexibility.

· Available in 15-bump WLP and 11-lead FC2QFN packages.

FEATURES

· Input voltage range: 1.8V to 5.5V.

· Output voltage range: 2.3V to 5.3V, adjustable with a single resistor.

· Maximum output current: 3A.

· Peak efficiency: 96% (VIN = 3.6V, VOUT = 3.3V).

· Optional GPIO pin for FPWM input or POK output.

· Ultra-low quiescent current: 6μA.

· Switching frequency: 2.2MHz (typ).

· Integrated protections: UVLO, OVP, cycle-by-cycle inductor peak current limit, thermal shutdown.

· Active output discharge.

· Small solution size: 2.07mm x 1.51mm WLP and 2.5mm x 2.0mm FC2QFN.

APPLICATIONS

· Asset tracking and fleet management.

· 5G/2G/GSM cellular power.

· RF amplifier.

· Smartphones with ToF, facial, and gesture recognition.

· System power pre-regulation.

· Single-cell Li-ion battery-powered devices.