Description
The AAT1217 is a high efficiency, synchronous, fixed frequency, step-up converter designed for single-cell or dual-cell alkaline, NiMH, or NiCd battery-powered applications.
Features
- VIN Operation Range: 0.5V to VOUT.
- VOUT Range: 2.5V to 5.5V.
- 100mA Output from a Single AA Cell Input.
- 400mA Output from a Dual AA Cell Input.
- 500mA Output from a Single Li+ Cell Input.
- High Efficiency: Up to 93% Efficiency.
- Low Start-Up Voltage: 0.85V Typical.
- Internal Synchronous Rectifier.
- VOUT ≤ 4.5V: No External Schottky Diode.
- Fixed Frequency Pulse Width Modulation (PWM) Current-
Mode Control Scheme with.