SC186

POWER MANAGEMENT SC186 4A Synchronous Step-Down Regulator Features  Input Voltage Range — 2.9 to 5.5V  Output Voltage Range — 0.8V to 3.3V  Output Current — up to 4A  Ultra-Small Footprint — <1mm Height Solution  Switching Frequency — 1.5MHz  Automatic Power Save Mode  Efficiency Up to 95%  Low Output Noise Across Load Range  Excellent Transient Response  Start Up into Pre-Bias Output  Duty-Cycle Low Dropout Operation — 100%  Shutdown Current — <1µA  Externally Programmable Soft Start Time  Power Good indicator  Input Under-Voltage Lockout  Output Over-Voltage, Current Limit Protection  Over-Temperature Protection  Thermally Enhanced 3 x 3 x 0.6 (mm) MLPQ-UT16 package  Temperature Range — -40 to +85°C  Lead-free, Halogen free, and RoHS/WEEE compliant Applications  Routers and Network Cards  LCD TV  Office Automation  Printers Typical Application Circuit Description The SC186 is a 4A synchronous step-down regulator designed to operate with an input voltage range of 2.9V to 5.5V. The device offers fifteen pre-determined output voltages via four control pins programmable from 0.8 to 3.3 Volts. The control pins allow for on-the-fly voltage changes, enabling system designers to implement dynamic power savings. The device is also capable of adjusting output voltage via an external resistor divider. The SC186 is optimized for maximum efficiency over a wide range of load currents. During full load operation, the device operates in PWM mode with fixed 1.5MHz...