LM27762 Description
The LM27762 delivers very low-noise positive and negative outputs that are adjustable between ±1.5 V and ±5 V. Input-voltage range is from 2.7 V to 5.5 V, and output current goes up to ±250 mA. With an operating current of only 390 µA and 0.5-µA typical shutdown current, the LM27762 provides ideal performance for power amplifier and DAC bias and other high-current, low-noise negative voltage needs.
LM27762 Key Features
- 1 Generates Low-Noise Adjustable Positive Supply Voltage Between 1.5 V and 5 V and Negative Supply Voltage Between -1.5
- Input Voltage Range 2.7 V to 5.5 V
- ±250-mA Output Current
- Inverting Charge Pump Followed by Negative
- 2-MHz Low-Noise Fixed-Frequency Operation
- 2.5-Ω Inverter Output Impedance, VIN = 5 V
- Negative LDO Dropout Voltage 30 mV at 100 mA
- Positive LDO with 45-mV Dropout Voltage at 100
- 390-µA Quiescent Current (Typical)
- Shutdown Quiescent Current to 0.5 µA (Typical)