LP5912-2.8DRVR

The LP5912 is a low-noise LDO capable of providing an output current of up to 500 mA. The LP5912 device is designed to meet the requirements of radio frequency (RF) and analog circuits, featuring low noise, high PSRR, low quiescent current, and low line or load transient response. The LP5912 provides excellent noise performance without the need for a noise bypass capacitor and supports remote placement of the output capacitor. This device is suitable for use with 1 μF input and 1 μF output ceramic capacitors (no separate noise bypass capacitor is required). Its fixed output voltage ranges from 0.8 V to 5.5 V (in 25 mV increments).

Applications

• Camera modules
• Sensors
• HiFi audio radio transceivers
• PLL/synthesizers, timing
• Medium current, noise-sensitive applications

Key features

• Input voltage range: 1.6V to 6.5V
• Output voltage range: 0.8V to 5.5V
• Output current up to 500mA
• Low output voltage noise: 12μVRMS typical
• PSRR at 1kHz: 75dB (typical)
• Output voltage accuracy (VOUT ≥ 3.3V): ±2%
• Low IQ (enabled, no load): 30μA (typical)
• Low dropout (VOUT ≥ 3.3V): 95mV typical at 500mA load
• Stable performance with 1μF ceramic input and output capacitors
• Thermal overload and short-circuit protection
• Reverse current protection
• No noise bypass capacitor required
• Auto output discharge for fast turn-off
• Power-good output with 140μs typical delay
• Internal soft-start limits inrush current
• Operating junction temperature range: -40°C to +125°C