AIC2304

AIC2304 1A Synchronous PWM Step-Down DC/DC Converter  FEATURES  2.5V to 5.5V Input Voltage Range  1.0A Guaranteed Output Current  Up to 95% Efficiency  Low RDS(ON) Internal Switche: 280mΩ  No Schottky Diode Required  100% Duty Cycle in Low Dropout Operation  Operating Frequency: 1.5MHz  Accurate Reference 0.6V Provides Low Output Voltages  APPLICATIONS  LCD TV  Multi-function Peripheral  Cellular Phones  CPU I/O Supplies  Cordless Phones  PDAs and Handy-Terminals  Battery-Operated Devices (1 Li-Ion or 3 NiMH/ NiCd)  APPLICATIONS CIRCUIT  DESCRIPTION The AIC2304 is a low-noise, pulse-widthmodulated (PWM), DC-DC step-down converter. The device is available in an adjustable version and fixed output voltages of 1.0V, 1.2V, 1.8V, and 3.3V. The device features an internal synchronous rectifier for high efficiency; it requires no external Schottky diode. Shutdown mode places the device in standby, reducing supply current to under 1µA. Other features of the AIC2304 include high efficiency, low dropout voltage, short circuit protection, over temperature protection, and over voltage protection. It is available in a small 5 pins SOT23 and a 6 pins DFN package. Fig. 1 Fixed Step-Down DC/DC Converter 1 AIC2304 Fig. 2 Adjustable Step-Down DC/DC Converter 2 AIC2304  ORDERING INFORMATION AI C2304 -X X X X X XX PACKING TYPE TR: TAPE & REEL B G: BA G PIN CONFIGURATION TOP VIEW SOT-23 -5 VOU 5 V IN 4 Exam ple: PACKAGE TYPE V 5: S OT-23 -5 V5A: SOT-23-5(with do ...