AIC2352中文资料700mA Synchronous PWM/PSM Step-Down DC/DC Converter数据手册AIC规格书

描述 Description

The AIC2352 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. The AIC2352 is ideally suited for Li-Ion battery applications. PWM/PSM mode extends battery life by switching to a pulse-skipping-modulated mode during light loads. Shutdown mode places the device in standby, reducing supply current to under 1μA.Other features of the AIC2352 include high efficiency, low dropout voltage, short circuit protection, over temperature protection, and over voltage protection. It is available in a small SOT23-5 package.

特性 Features

• 2.5V to 5.5V Input Voltage Range
• 700mA Guaranteed Output Current
• Up to 95% Efficiency
• Low RDS(ON) Internal Switch: 280mΩ
• No Schottky Diode Required
• 100% Duty Cycle in Low Dropout Operation
• Operating Frequency: 1.5MHz
• Accurate Reference 0.6V Provides Low Output Voltages

应用 Application

• 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)