AIC2300

400mA Synchronous PWM Step-Down

DC/DC Converter

Analog Integrations Corporation

Si-Soft Research Center

DS-2300G-01 20120531

3A1, No.1, Li-Hsin Rd. I , Science Park , Hsinchu 300, Taiwan , R.O.C.

TEL: 886-3-5772500

FAX: 886-3-5772510

www.analog.com.tw

1



2.5V to 5.5V Input Voltage Range



400mA Guaranteed Output Current



Up to 95% Efficiency





No Schottky Diode Required



100% Duty Cycle in Low Dropout Operation



Operating Frequency: 1.5MHz



Accurate Reference 0.6V Provides Low

Output Voltages



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)

The

AIC2300

is

a

low-noise,

pulse-width-

modulated (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

AIC2300

include high efficiency, low

dropout voltage,short circuit protection, over

temperature

protection,

and

over

voltage

protection. It is available in a small 5 pins SOT-

23 package.

Fig. 1 Fixed Step-Down DC/DC Converter