Datasheet Summary
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Preliminary Product Information 1-Channel Step-Down PWM Controller Features
- High efficiency
- Using external P channel MOSFET
- Maximum Duty 100%
- Oscillation frequency 600KHz
- Soft Start by an external capacity
- Output voltage accuracy ±2%
- Built-in ON/OFF Function
- Built-in Short-circuit Protection
- Stand-by current max. 10µA
- Quiescent Current 1mA
- Input voltage: 2.5V ~7.0V
General Description
The AT1391 provides plete control and protection for a DC/DC converter optimized for high-performance microprocessor applications. It is designed to drive one P-Channel in a buck topology. The AT1391 integrates all of the control, output adjustment, and...