
Analog Technology Inc
General Description
The AAT1101 series provide an integrated triple-channel pulse width modulation (PWM) solution for the power supply of LCD displays. These devices offer system engineers the flexibility to tailor-make the power supply circuitry for specific applications. Each channel contains its own error amplifier, PWM comparator, dead–time control (DTC) and output driver.
FEATUREs
● Complete PWM Power Control Circuitry
● Precision Reference: 1.25V±1% (25 o C )
● Low Operating Voltage: 2.5V to 6.5V
● Under-Voltage Lockout Protection
● 5V or 3.3V Selectable Over Voltage
Lockout Protection (AAT1101/A only)
AAT1101/AAT1101A/AAT1101C: 500kHz Fixed
AAT1101B: 50k~1MHz Programmable
● Internal Power Up Sequence Control
● Totem Pole Output
● Output Short Circuit Protection
● Low Dissipation Current: 2.5mA (f=500kHz, Duty=50%)