AAT1403B Datasheet PDF | Advanced Analog Technology

Advanced Analog Technology AAT1403B

The AAT1403B 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.

Part No.	AAT1403B
Datasheet	AAT1403B Download
Manufacturer	Advanced Analog Technology
Description	SIX-CHANNEL DIGITAL STILL CAMERA POWER SUPPLY
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FEATURES

GENERAL DESCRIPTION

In addition to two boost conversions and one inverting conversion, AAT1403B also has three synchronous rectifiers. 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 (CH1,6) z Supports Synchronous Buck Rectification (CH5) 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 – ¥xÆWÃþ¤ñ¬ì§ÞªÑ¥÷¦³-½q – – Advanced Analog Technology, Inc. – Page 1 of 27 V 1.0 Advanced Analog Technology, Inc. AAT1403B PIN CONFIGURATION (VQFN-40) (LQFP-48) FUNCTION TABLE Condition SD − Channel Status CH1 Off On Off On Off On Off On Off On Off On CH2 CH3 CH4 CH5 CH6 SD1= “Lo” SD1= “Hi” SD2= “Lo” SD2= “Hi” SD3= “L...