AP3585B Overview
Description
Pin Assignments The AP3585A/B/C is a compact synchronous-rectified buck controller specifically designed to operate from 4.5V to 13.2V supply voltage and deliver high-quality output voltage as low as 0.8V (AP3585A) or 0.6V (AP3585B/C). This SO-8EP device operates at fixed 300kHz/200kHz frequency and provides an optimal level of integration to reduce size and cost of the power supply.
Key Features
- Supply Voltage: 4.5V to 13.2V VIN Input Range: 3.3V to 12V 0.8V/0.6V to 80% of VIN Output Range Internal Reference: 0.8V/0.6V
- Simple Single-loop Control Voltage-mode PWM Control Duty Cycle: 0% to 80% Fast Transient Response
- 10MHz High-bandwidth Error Amplifier with 6V/μs Slew Rate
- Fixed Oscillator Frequency: 300kHz/200kHz
- Lossless, Programmable Over Current Protection (Uses Lower MOSFET RDS(ON))
- Start-up into Pre-biased Load
- Built-in Thermal Shutdown
- Built-in Soft-start
- Over Current Protection
- Over Voltage Protection
