General Description
The FP5209 is a boost topology switching regulator for wide operating voltage applications. It
provides built-in gate driver pin, EXT pin, for driving the external N-MOSFET. The internal
compensation network minimizes external component counts, and the non-inverting input of error
amplifier connects to a 0.6V precision reference voltage. The FP5209 have internal soft start function.
The FP5209 is available in the small footprint SOT23-5L package to fit in space-saving PCB
layout for miscellaneous application fields.
Features
? Wide Supply Voltage Operating Range: 2.4 to 5.5V
? Precision Feedback Reference Voltage: 0.6V (±2%)
? Shutdown Current: <1μA
? Internal Fixed PWM frequency: 550KHz
? Internal Soft Start Function :7ms (SS)
? Over Voltage Protection
? Package: SOT23-5L
? Duty Cycle: PWM/PFM Switching Control Circuit (15%~90%)

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