General Description

The MAX77291 is a low-quiescent-current boost (step-up)

DC-DC converter with a 100mA peak inductor current limit

and True Shutdown™. True Shutdown disconnects the

output from the input with no forward or reverse current.

The output voltage is set with an external resistor-divider.

The output voltage can be widely varied between 5.5V and

20V.

The MAX77291 is available in a 6-bump, 0.4mm pitch,

wafer-level package (WLP).

Features and Benefits

• 28μA Quiescent Supply Current from Input

• Output Short Circuit Protection

• Overtemperature Protection

• True Shutdown Mode

• 13nA Shutdown Current

• No Reverse Current from OUT

• 90 Peak Efficiency

• 1.8V to 5.5 V Input Range

• 5.5V to 20V Output Voltage Range

• 100mA Peak Inductor Current Limit

• 1.27mm x 0.87mm 6-Bump WLP (3 x 2, 0.4mm Pitch)

Package

• -40°C to +125°C Temperature Range

Applications

• Primary Cell Portable Systems

• Battery-Powered Medical Equipment

• Tiny, Low-Power Internet of Things (IoT) Sensors

• Low-Power Wireless Communication Products

• Secondary-Cell Portable Systems