AN30181A

AN30181A VIN = 2.9V to 5.5V 2ch,0.8A General-purpose High Efficiency Power LSI FEATURES DESCRIPTION z High-speed response DC-DC Step-Down Regulator circuit that employs hysteretic control system : 2-ch (1.2 V, 0.8 A / 1.8 V, 0.8 A) z LDO : 1-ch (0.9 V, 10 mA) z Built-in external Pch MOSFET gate drive circuits z Built-in Reset function z Built-in Under Voltage Lockout function (UVLO) z 24pin Plastic Quad Flat Non-leaded Package (Size : 4 × 4 mm, 0.5 mm pitch) APPLICATIONS High Current Distributed Power Systems such as SSD (Solid State Drive), Cellular Phone, etc. AN30181A is a power management LSI which has DC-DC Step Down Regulators (2-ch) that employs hysteretic control system. By this system, when load current changes suddenly, it responds at high speed and minimizes the changes of output voltage. Since it is possible to use capacitors with small capacitance and it is unnecessary to use parts for phase compensation, this IC realizes downsizing of set and reducing in the number o...