LP5912Q1.8DRVRQ1

1 Features

• Qualified for Automotive Applications

• AEC Q100-Qualified With the Following Results

– Device Temperature Grade 1: –40°C to +125°C Ambient Operating Temperature Range

– Device HBM Classification Level 2 – Device CDM Classification Level C6

• 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-Q1 is an LDO capable of supplying 500-mA output current. Designed to meet the requirements of RF and analog circuits, the LP5912-Q1 device provides low noise, high PSRR, low quiescent current, and low line and load transient response. The LP5912-Q1 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.

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