AiT Semiconductor Inc.
www.
ait-ic.
com
A7501
DC-DC CONVERTER/BOOST(STEP-UP) SUPER-SMALL PACKAGE VFM CONTROL
STEP-UPSWITCHING REGULATOR
DESCRIPTION
FEATURES
The A7501 Series is a
CMOS VFM-control step-up Low
voltage operation: Start up at 0.
9V min
switching regulator that mainly consists of a reference
(IOUT=1mA) guaranteed
voltage source, an oscillator, and a comparator.
Low input current: During maximum operation:
Enabling products with a low ripple over a wide range, high efficiency, and high output current.
18μA (VOUT=3.
3V, typ.
) Duty ratio: 77% Built-in fixed-type PFM
Products with a fixed duty ratio of 75 %（Lower Output
controller
Voltage）or 88%(Higher Output
Voltage) ...