High-efficiency Step-down DC/DC Converter

The FAN5307 a high efficiency low noise synchronous PWM current mode and Pulse Skip (Power Save) mode DC-DC Converter is designed for battery-powered applications. It provides up to 300mA of output current over a wide input range from 2.5V to 5.5V. The output voltage CAN be either internally fixed or externally adjustable over a wide range of 0.7V to 5.5V by an external voltage divider. Custom output voltages are also available. Contact a Fairchild sales representative for customized output voltage options.
At moderate and light loads pulse skipping modulation is used. Dynamic voltage positioning is applied, and the output voltage is shifted 0.8% above nominal value for increased headroom during load transients. At higher loads the system automatically switches to current mode PWM control, operating at 1 MHz. A current mode control loop with fast transient response ensures excellent line and load regulation. In Power Save mode, the quiescent current is reduced to 15A in order to achieve high efficiency and to ensure long battery life. In shut-down mode, the supply current drops below 1A. The device is available in 5-lead SOT-23 and 6-lead MLP 3x3mm packages.
By Fairchild Semiconductor
FAN5307 's PackagesFAN5307 's pdf datasheet
FAN5307S15X SOT-23
FAN5307S18X SOT-23
FAN5307SX SOT-23

FAN5307 Pinout, Pinouts
FAN5307 pinout,Pin out
This is one package pinout of FAN5307,If you need more pinouts please download FAN5307's pdf datasheet.

FAN5307 Application circuits
FAN5307 circuits
This is one application circuit of FAN5307,If you need more circuits,please download FAN5307's pdf datasheet.

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