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Reference Design
SNVS296J
- DECEMBER 2006
- REVISED JUNE 2016
LP3991 300-mA LDO for Digital Applications
1 Features
- 1 Input Voltage From 1.65 V to 4 V
- Output Voltage From 0.8 V to 3 V
- 1% Accuracy at Room Temperature
- 125-mV Dropout at 300-mA Load
- 50-µA Quiescent Current at 1-mA Load
- Inrush Current Controlled to 600 mA
- PSRR 65 dB at 1 kHz
- 100-µs Start-Up Time for 1.5-V VOUT
- Stable With Ceramic Capacitors as Small as 0402
- Thermal-Overload and Short-Circuit Protection
2 Applications
- Post DC-DC Regulator
- Battery Operated Devices
- Hand-Held Information Appliances
3...
