GENERAL DESCRIPTION
The MA5821 is an asynchronous buck controller. The device needs external high side power
MOSFET and low side schottky diode, and provides 3A of continuous load current over a wide
input voltage of 10V to 58V range. Current mode control provides fast transient response and
cycle-bicycle current limit. An internal soft-start function prevents inrush current at turn-on.
This device is available in small MSOP-10L-EP package, and provides a very compact
solution with minimal external components.

FEATURES
- Wide 10V~ 58V Operating Input Range
- External High-Side P-channel MOSFET Switch
- Output Adjustable : VFB(1.00V±2%)
- Up to 93% Efficiency
- Internal Soft-Start / Thermal Shutdown Protection
- Fixed 240KHz Frequency
- Cycle-by-Cycle Over Current Protection
- Input Under/Over Voltage Lockout