UMC33167

UNISONIC TECHNOLOGIES CO., LTD UMC33167 Advance LINEAR INTEGRATED CIRCUIT 5.0A, STEP-UP/DOWN/ INVERTING SWITCHING REGULATORS  DESCRIPTION The UTC UMC33167 series are high performance fixed frequency power switching regulators that contain the primary functions required for dc-to-dc converters. This series was specifically designed to be incorporated in step-down and voltage-inverting configurations with a minimum number of external components and can also be used cost effectively in step-up applications. These devices consist of an internal temperature compensated reference, fixed frequency oscillator with on-chip timing components, latching pulse width modulator for single pulse metering, high gain error amplifier, and a high current output switch. Protective features consist of cycle-by-cycle current limiting, undervoltage lockout, and thermal shutdown. Also included is a low power standby mode that reduces power supply current to 36μA.  FEATURES * Output Switch Current ...