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