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.