AAT1403A Datasheet, PDF (1/27 Pages) Advanced Analog Technology, Inc. – SIX-CHANNEL DIGITAL STILL CAMERA POWER SUPPLY

Advanced Analog Technology, Inc.
Details are subject to change without notice
AAT1403A
SIX-CHANNEL DIGITAL STILL CAMERA POWER SUPPLY
FEATURES
z Complete PWM Power Control Circuitry
z Input Voltage Range: 1.4V to 6.5V
z Low Start-Up Voltage: 1.4V (CH6)
z Separate On/Off Control for CH1~CH6
z Supports Synchronous Boost Rectification (CH6)
z Supports Synchronous Buck Rectification (CH1, 5)
z Supports Boost Conversion (CH2, 4)
z Supports White LED Driver (CH4)
z Supports Inverting Conversion (CH3)
z Totem Pole Output
z Short Circuit Protection
z VQFN40 and LQFP48 Package
z Oscillator Frequency: 500 kHz (±15%)
APPLICATIONS
z Digital Cameras
z CCD Imaging Devices
z Camcorders
GENERAL DESCRIPTION
The AAT1403A provides an integrated six-channel
pulse-width-modulation (PWM) solution for the power
supply of DC-DC converter; this device offers system
engineer flexibility to tailor-make the power supply
circuitry for specific applications. Each channel
contains its own error amplifier, PWM comparator,
dead-time control and output driver. The under-voltage
protection, oscillator, short circuit protection and
voltage reference circuit are the common features for
the six channels.
In addition to two boost conversions and one inverting
conversion, AAT1403A also has three synchronous
rectifiers.
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