APW8868B Overview
The APW8868B integrates a synchronous buck PWM controller to generate VDDQ, a sourcing and sinking LDO linear regulator to generate VTT. It offers the lowest total solution cost in system where space is at a premium. The APW8868B provides excellent transient response and accurate DC voltage output in either PFM or PWM Mode.
APW8868B Key Features
- High Input Voltages Range from 3V to 28V Input
- Integrated MOSFET Drivers and Bootstrap Forward
- Low Quiescent Current (200µA)
- Excellent Line and Load Transient Responses
- PFM Mode for Increased Light Load Efficiency
- Constant On-Time Controller Scheme
- Switching Frequency pensation for PWM Mode
- Adjustable Switching Frequency from 400kHz to 550kHz in PWM Mode with DC Output Current
- S3 and S5 Pins Control The Device in S0, S3 or S4/ S5 State
- Power Good Monitoring