AS1308数据手册Anisem中文资料规格书

描述 Description

The AS1308 is a 1MHz 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 AS1308 can supply 2A (max.) of load current from a 2.5V to 6.5V input voltage. The output voltage for the AS1308-adj can be regulated as low as 0.6V, The AS1308 can also run at 100% duty cycle for low dropout applications.\r
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The AS1308 is available in a low profile 5-pin, TSOT23 package

特性 Features

• High Efficiency：Up to 97%\r
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• 1MHz Constant Switching Frequency\r
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• 2A Available Load Current\r
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• 2.5V to 6.5V Input Voltage Range:\r
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• Output Voltage as low as 0.6V\r
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• 100% Duty Cycle In Dropout\r
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• Current Mode Control\r
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• Short Circuit Protection\r
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• Thermal Fault Protection\r
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• <1μA Shutdown Current\r
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• Space Saving 5-pin TSOT23 Package

应用 Application

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