北京华泱科技有限公司

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

Description

The LP5912-Q1 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-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.