AAT1107 Datasheet PDF | Advanced Analog Technology

Advanced Analog Technology AAT1107

The AAT1107 provides an integrated two-channel pulse-width-modulation (PWM) solution for the power supply of DC-DC system. This device offers system engineers the flexibility to tailor-make the power supply circuitry for the specific applications. Each channel contains its own error amplifier, PWM comparator, dead-time control (DTC) and output driver.

Part No.	AAT1107
Datasheet	AAT1107 Download
Manufacturer	Advanced Analog Technology
Description	BUCK BOOST & BOOST PWM CONTROLLER
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FEATURES

z z z Complete PWM Power Control Circuitry CH1: Buck_Boost, CH2: Boost Adjustable Low Dropout (LDO) Regulator Under-Voltage Lockout (UVLO) Protection Totem Pole Output Output Short Circuit Protection Dead Time Control : 0% to 100% Wide Operating Frequency: 10kHz to 800kHz

GENERAL DESCRIPTION

The two channels share common features of under-voltage protection, oscillator, short circuit protection and voltage reference circuit. Two dead-time control inputs are assigned for channel (CH1) and channel 2 (CH2) individually, and dead-time control inputs can be used to control on/off operation. The AAT1107 contains one step-up (boost) circuit at CH2 and one inverting (buck_boost) circuit at CH1. In addition, DTC can be set to provide 0% to 100% dead-time through a resistive divider network and soft-start can be implemented by paralleling the DTC resistor with a capacitor. The Maximum output current of LDO regulator can be enlarged by connecting an nMOSFET (or NPN bipolar) as a source f...