AS1302数据手册集成电路（IC）的稳压器-DC-DC开关稳压器规格书PDF

描述 Description

The AS1302 is a 1.5MHz constant frequency current mode PWM step-down converter. The device integrates a main switch and a synchronous rectifier for high efficiency without an external Schottky diode. It is ideal for powering portable equipment that runs from a single cell Lithium-Ion (Li+) battery. The AS1302 can supply 0.8A (max.) of load current from a 2.5V to 6.5V input voltage. The output voltage for the AS1301-adj can be regulated as low as 0.6V, The AS1302 can also run at 100% duty cycle for low dropout applications.The AS1302 is available in a low profile 5-pin, TSOT23 package

特性 Features

• High Efficiency：Up to 95%
• 1.5MHz Constant Switching Frequency
• 0.8A Available Load Current
• 2.5V to 6.5V Input Voltage Range:
• Output Voltage as low as 0.6V
• 100% Duty Cycle In Dropout
• Current Mode Control
• Short Circuit Protection
• Thermal Fault Protection
• <1μA Shutdown Current
• Space Saving 5-pin TSOT23 Package

应用 Application

• Battery Charger
n Distributed Power Systems
• Pre-Regulator for Linear Regulators
• DSL Modems