Single Phase Synchronous Buck PWM Controller
Data sheet
Single Phase Synchronous Buck PWM Controller
AP3586A/B/C
General Description
The AP3586A/B/C is a compact ...
Description
Data sheet
Single Phase Synchronous Buck PWM Controller
AP3586A/B/C
General Description
The AP3586A/B/C is a compact synchronous -rectified buck controller specifically designed to operate from 5V or 12V supply voltage and deliver high-quality output voltage as low as 0.6V (AP3586A) or 0.8V (AP3586B/C). This device operates at fixed 300kHz (AP3586A/B) or 200kHz (AP3586C) frequency and provides an optimal level of integration to reduce size and cost of the power supply.
This controller integrates internal MOSFET drivers that support 12V+12V bootstrapped voltage for highefficiency power conversion. The bootstrap diode is built-in to simplify the circuit design and minimize external part count.
This controller provides single feedback loop, voltage-mode control with fast transient response. The error amplifier features a 10MHz gain-bandwidth product and 6V/µs slew rate which enables high converter bandwidth for fast transient performance.
Other features include internal soft-start, under voltage protection, over current protection and shutdown function. With afore-mentioned functions, this part provides customers a compact, high efficiency, well-protected and cost-effective solutions.
The AP3586A/B/C is available in SOIC-8 and PSOP-8 packages.
Features
Supply Voltage: 5V/12V VIN Input Range: 3.3V to 12V 0.6V/0.8V to 82% of VIN Output Range Internal Reference: 0.6V/0.8V Simple Single-loop Control Voltage-mode PWM Control Duty Cycle: 0% to 82% Fast Transient Re...
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