GENERAL DESCRIPTION

The AAT1501/A is a charge pump DC/DC converter mainly used for white LED backlighting. It operates with an input voltage ranging from 2.7V to 5.0V to generate constant 5.0V (AAT1501) or 4.5V (AAT1501A) output. The regulated output is produced by using an internal feedback switched capacitor voltage doublers.

FEATURES

● Monitored Output Voltage

(AAT1501: VO = 5V ± 4 )

(AAT1501A: VO = 5.4 V ± 4 )

● Output Current: 120mA ( VDD = 3.3V)

150mA ( VDD = 3.6V)

● Input Voltage Range: 2.7V to 5.0V

● A Power-Saving Shutdown Current of less than

1µA

● Internal Oscillation Frequency : 750kHz

● Compact SOT-23-6 Package