FP6716

FP6716 5V, 8A, 550KHz High Efficiency Low Ripp8l5eT Synchronous Step-Up Converter Description The FP6716 is a high efficiency, fixed frequency 550KHz, current mode PWM boost DC/DC converter which could operate battery such as input voltage down to 2.5V. The converter output voltage can be adjusted to a maximum of 5.25V by an external resistor divider. Besides the converter includes a 0.05Ω N-channel MOSFET switch and 0.08Ω P-channel synchronous rectifier. So no external Schottky diode is required and could get better efficiency near 90%. 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 FP6716 is available in a space-saving SOP-8 (Exposed Pad) package for portable application. Pin Assignments SP Package (SOP-8 Exposed Pad) VIN OUT FB GND 18 297 3 PGND 6 45 PG LX EN ILIM Features  High Efficiency up to 90%  Low RDS(ON) Integrated Power MOSFET  NMOS 50mΩ/PMOS 80mΩ  Wide Input Voltage Range: 2.5V to 5.5V  Fixed 550KHz Switching Frequency  Low-Power Mode for Light Load Conditions  ±2.0% Voltage Reference Accuracy  Adjustable Current Limit  PMOS Current Limit for Short Circuit Protection  Low Quiescent Current  Output Ripple under 200mV (Scope Full Bandwidth)  Input Under Voltage Lockout  Internal Compensation Functio...