LP5912-1.8DRVR中文资料德州仪器数据手册PDF规格书

1 Features

1• Input Voltage Range: 1.6 V to 6.5 V

• Output Voltage Range: 0.8 V to 5.5 V

• Output Current up to 500 mA

• Low Output-Voltage Noise: 12 μVRMS Typical

• PSRR at 1 kHz: 75 dB Typical

• Output Voltage Tolerance (VOUT ≥ 3.3 V): ±2%

• Low IQ (Enabled, No Load): 30 μA Typical

• Low Dropout (VOUT ≥ 3.3 V): 95 mV Typical at

500-mA Load

• Stable With 1-μF Ceramic Input and Output

Capacitors

• Thermal-Overload and Short-Circuit Protection

• Reverse Current Protection

• No Noise Bypass Capacitor Required

• Output Automatic Discharge for Fast Turnoff

• Power-Good Output With 140-μs Typical Delay

• Internal Soft-Start to Limit the In-rush Current

• –40°C to +125°C Operating Junction Temperature

Range

2 Applications

• Camera Modules

• Sensors

• HiFi Audio Radio Transceivers

• PLL/Synthesizer, Clocking

• Medium-Current, Noise-Sensitive Applications

3 Description

The LP5912 is low-noise LDO that can supply up to

500 mA of output current. Designed to meet the

requirements of RF and analog circuits, the LP5912

device provides low noise, high PSRR, low quiescent

current, and low line and load transient response.

The LP5912 offers class-leading noise performance

without a noise bypass capacitor and with the ability

for remote output capacitance placement.

The device is designed to work with a 1-μF input and

a 1-μF output ceramic capacitor (no separate noise

bypass capacitor required).

This device is available with fixed output voltages

from 0.8 V to 5.5 V in 25-mV steps. Contact Texas

Instruments Sales for specific voltage option needs.