AP2201
Chipown
Super Small Package PFM Control Step-Up Switching
Regulator
General Description
The AP2201 Series is a CMOS PFM-control step-up switching
regulator that mainly consists of a reference voltage source, an oscillator, and a comparator, enabling products with a low ripple over a wide range, high efficiency, and high output current.
Products with a fixed duty ratio of 75 % ( Lower Output Voltage ) or 88%(Higher Output Voltage) are also available.
With the AP2201 Series, a step-up switching
regulator can be configured by using an external coil, capacitor, and diode.
A protection circuit turns off the built-in MOS FET when the voltage at the CONT pin exceeds the limit to prevent i...