W83323

Aufbau/internal: IC (CMOS ?);
Form/Case/Outline: SOP-8 (W83323G);
Type/Application: High-speed N-Channel synchronous buck regulator controller*;
Daten/electr.data: Vcc: __ V; Icc: __ mA; Pd: __ mW; t op: -__...+__ °C;
Manufactured by Winbond (TW)

The W83323G is a high-speed, N-Channel synchronous buck regulator controller. The W83323G employs fixed-frequency voltage-mode PWM control architecture. Both high-side and low-side MOSFETs are lower cost N-Channel type. The regulator is biased from a 5V rail and the power for the high-side MOSFET can be supplied by a separate 12V rail or supplied from a local charge pump. Besides, the current limit is achieved by monitoring the voltage drop across the on resistance of the low-side MOSFET. This method eliminates the requirement of extra current sensing resistor and avoids false trigger of OC protection when VIN varies. (Source: www.chipcatalog.com)
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