AIC2253
1A, 1.5MHz AOT Synchronous Step-Down DC/DC Converter
- FEATURES
-
- 2.5V to 6V Input Voltage Range
- 1.0A Guaranteed Output Current
- Up to 95% Efficiency
- Low RDS(ON) Internal Switch : 110mOhm
- Stable with Low ESR Output Ceramic Capac-itors
- No Schottky Diode Required
- 100% Duty Cycle in Low Dropout Operation
- 1.5MHz Operating Frequency
- Accurate Reference 0.6V Provides Low Output Voltages
- 8uA Quiescent Current
- Under Voltage Lockout
- Cycle by Cycle Over Current Protection
- Short Circuit Protection
- Over Temperature Protection
- Available in a TSOT23-8 Package
- APPLICATIONS
-
- LCD TV
- Multi-function Peripheral
- CPU I/O Supplies
- Cordless Phones
- PDAs and Handy-Terminals
- Battery-Operated Devices (1 Li-Ion or 3 NiMH/ NiCd)
- DESCRIPTION
- The AIC2253 is an adaptive on time control syn-chronous step down converter. The device fea-tures an internal synchronous rectifier for high efficiency, it requires no external Schottky diode.
The AIC2253 main control loop uses adaptive on time control that provides a fast transient response without external compensation compo-nent. The low impedance internal MOSFET supports high efficiency operation. The AIC2253 has a proprietary circuit that the device to adapt to all ceramic capacitors.
Other features of the AIC2253 include high efficiency, low dropout voltage, over current protection, short circuit protection, and over temperature protection. It is available in a small 8 pins TSOT23-8 package.
- TYPICAL APPLICATION
