ADM8828: Switched-Capacitor Voltage Inverter with Shutdown
The ADM8828/ADM8829 is a charge-pump voltage inverter which may be used to generate a negative supply from a positive input. Input voltages ranging from +1.5 V to +5.5 V can be inverted into a negative –1.5 V to –5.5 V output supply. This inverting scheme is ideal for generating a negative rail in single power-supply systems. Only two small external capacitors are needed for the charge pump. Output currents up to 25 mA with greater than 99% efficiency are achievable.
ADM8828 特点
- Inverts Input Supply Voltage
- 99% Voltage Conversion Efficiency
- 25 mA Output Current
- Shutdown Function
- Requires Only Two Capacitors
- 1 uF Capacitors
- 18 V Output Resistance
- +1.5 V to +5.5 V Input Range
- 600 uA Quiescent Current
- 20 nA Shutdown Current (ADM8828)
ADM8828 功能框图
| 产品型号 | 产品状态 | 封装 | 引脚 | 温度范围 |
|---|---|---|---|---|
| ADM8828ART-REEL | 量产 | 6 ld SOT-23 | 6 | 工业 |
| ADM8828ARTZ-REEL | 量产 | 6 ld SOT-23 | 6 | 工业 |
| ADM8828ARTZ-REEL7 | 量产 | 6 ld SOT-23 | 6 | 工业 |