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DATA SHEET
LM27761 Low-Noise, Regulated, Switched-Capacitor Voltage Inverter
1 Features
- Inverts and Regulates the Input Supply Voltage
- Low Output Ripple
- Shutdown Lowers Quiescent Current to 7 µA (Typical)
- Up to 250-mA Output Current
- 2.5-Ω Inverter Output Impedance, VIN = 5 V
- ±4% Regulation at Peak Load
- 370-µA Quiescent Current
- 2-MHz (Typical) Low-Noise Fixed-Frequency Operation
- 35-dB (Typical) LDO PSRR at 2 MHz
With 80-mA Load Current
- 30-mV LDO Dropout Voltage at 100 mA,
VOUT = –5 V
- Current Limit and Thermal Protection
- Create a Custom Design Using the LM27761 With the WEBENCH® Power Designer
2 Applications
- Operational Amplifier Power
- Wireless Communication Systems
- Cellular-Phone Power-Amplifier Biasing
- Interface Power Supplies
- Handheld Instrumentation
- Hi-Fi Headphone Amplifiers
- Powering Data Converters