APW7251/A
Boost and Dual LDOs with POK
Features
General Description
• Wide Input Voltage from 3V to 5.
5V
The APW7251 contains a PWM Boost converter, a 1.
8V
• Built-in Soft-start
linear
regulator and a 3.
3V linear
regulator.
• B oo s t Co n ve r te r F ix e d Out p ut Vo lt a ge : The PWM boost converter is a high frequency step-up
APW7251:13.
5V
DC/DC converter.
Its output voltage is set by an internal
APW7251A:12.
3V
feedback divider at 13.
5V and 12.
3V.
• 1uA Quiescent Current During Shutdown • Boost Converter in PFM Mode
The
regulator is a P-channel low dropout linear
regulator with POK which needs only one input voltage from 3 to 5.
5V, and delivers current up to 10mA to set ...