GENERAL DESCRIPTION

The ADPL20502® is a boost converter capable of

delivering a peak inductor current up to 2A with True

Shutdown™, cycle-by-cycle inductor current limit, short

circuit, and thermal protection. During shutdown, only

1nA is drawn from the input pin. The ADPL20502 offers

ultra-low quiescent current, small total solution size,

and operates at a high efficiency throughout the load

and line range. The ADPL20502 is ideal for batterypowered

applications where long battery life is a must

and high efficiency is required at all power levels.

The ADPL20502 utilizes an adjustable on-time, pulsefrequency

modulation (PFM) control scheme that

consumes ultra-low quiescent current. The ADPL20502

features True Shutdown mode where the output

disconnects from the input with no forward or reversecurrent.

This saves precious energy from the battery for

systems that dynamically turn on and off by having the

ability to startup into a precharged output capacitor.

The ADPL20502 is offered in a space-saving and cost

effective 1.58mm x 0.89mm, 6-bump WLP (3 x 2, 0.4mm

pitch) and 8-pin, 2mm x 2mm TDFN packages. The

operating temperature range is from -40°C to +125°C.

FEATURES

 500nA Quiescent Supply Current from Output

 Output Short-Circuit Protection

 True Shutdown Mode

 1nA Shutdown Current

 Output Disconnects from Input

 No Reverse-Current with Any Voltage on VOUT

 96 Peak Efficiency, 90 or Higher at 500μA

 Typical 800mA Output Current at 5.0V (VIN = 3.0V)

 600mV to 5.5V Input Range, Up to 5.35V in

Regulation

 900mV Minimum Startup Voltage

 Single Resistor-Adjustable Output Voltage

 2.3V to 5.2V Output Voltage Range with 100mV

Steps

 5.5V Output Voltage Setting Available

 2A Peak Inductor Current Limit

 Thermal Shutdown Protection

 Multiple Package Options

 1.58mm x 0.89mm, 0.4mm Pitch, 6-Bump (3 x 2)

WLP

 2mm x 2mm, 8-Pin TDFN

 -40°C to +125°C Operating Temperature Range

APPLICATIONS

 Consumer: WiFi Module, Near-Band IoT, Wearable

audio

 Industrial: Emergency Lighting, IoT Sensors

 Medical: Clinical Instrumentation