AP3581B Overview
Description
The1AP3581A/B/C1is1a1compact1synchronous-rect ified buck controller specifically designed to operate from 5V/12V supply and deliver high-quality output voltage as low as 0.6V (AP3581A) or 0.8V (AP3581B/C). The AP3581A/B/C operates at fixed frequency of 300kHz (AP3581A/B) or 200kHz (AP3581C) and provides an optimal level of integration to reduce size and cost of the power supply.
Key Features
- Supply Voltage: 5V/12V
- VIN Input Range: 3.0V to 13.2V
- 0.6V/0.8V to 80% of VIN Output Range
- Internal Reference: 0.6V/0.8V
- 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
