XT1708 - Silinktek

XT1708 PWM/PFM Automatic Switching Controlled Synchronous DC-DC Converters

XT1708 series is a group of high efficiency synchronous-rectification type buck regulator using a constant frequency, current mode architecture. The device is available in an adjustable version and fixed output voltages. Automatic PWM/PFM mode operation increases efficiency and decreases output voltage ripple at light loads, further extending battery life. .

Features

 High Efficiency: 95％
 Input Voltage Range: 1.8V ~ 6.0V
 Output Current: 800mA
 Shutdown Current: <1uA
 Oscillation Frequency: 1.4MHz
 Overcurrent protection : limit inductor current 1.3A
■ Typical Application Circuit
 Output voltage is adjustable L VIN LX 2.2uH Vout Vin C1 CE FB 10uF GND R1 C2 22PF C3 10uF R2
■ Applications .