描述 Description

The FP6715 is a high efficiency, fixed frequency 550KHz, current mode PWM boost DC/DC converter which could operate battery such as input voltage down to 1.9V. The converter output voltage can be adjusted to a maximum of 5.25V by an external resistor divider. Besides the converter includes a 0.08Ω N-channel MOSFET switch and 0.085Ω P-channel synchronous rectifier. So no external Schottky diode is required and could get better efficiency near 93%.



The converter is based on a fixed frequency, current mode, pulse-width-modulation PWM controller that goes automatically into PSM mode at light load.



When converter operation into discontinuous mode, the internal anti-ringing switch will reduce interference and radiated electromagnetic energy.



The FP6715 is available in a space-saving SOT-23-6 package for portable application.

特性 Features

? Wide Input Voltage Range: 1.9V to 5.25V
? VOUT Off True shutdown
? High Efficiency up to 93%
? Low RDS(ON) Integrated Power MOSFETNMOS 80mΩ / PMOS 85mΩ
? Fixed 550KHz Switching Frequency
? Low-Power Mode for Light Load Conditions
? ±2.0% Voltage Reference Accuracy
? Short Circuit Protection
? Low Quiescent Current
? Fast Transient Response
? Built-In Soft Start Function
? Over-Temperature Protection with Auto Recovery
? Output Overvoltage Protection
? Cycle-by-Cycle Current Limit
? Short Circuit Protection
? Space-Saving SOT-23-6 Package