LD501
Description
The LD501 is an ultra-low noise, low dropout (LDO) linear regulator that operates from 2.2V to 5.5V and provides output current up to 150mA (LD501L), 200mA (LD501M), or 250mA (LD501P). The low dropout voltage-70mV at 150mA load (LD501L), 94mV at 200mA load (LD501M), or 118mV at 250mA load (LD501P), improves efficiency and allows operation over a wide input voltage range.
Key Features
- Ultra-low noise: 13.5μV rms at VOUT = 3.3V 9.5µV rms at VOUT = 1.1V
- No noise bypass capacitor required
- Stable with 1μF ceramic input and output capacitors
- Maximum output current: 150mA (LD501L) 200mA (LD501M) 250mA (LD501P)
- Input voltage range: 2.2V to 5.5V
- Low quiescent current IGND = 12μA with IOUT = 0mA IGND = 170μA with IOUT = 150mA (LD501L) IGND = 200μA with IOUT = 200mA (LD501M) IGND = 229μA with IOUT = 250mA (LD501P)
- Low shutdown current: 0.25μA
- Low dropout voltage: VDROPOUT = 70mV with IOUT = 150mA (LD501L) VDROPOUT = 94mV with IOUT = 200mA (LD501M) VDROPOUT = 118mV with IOUT = 250mA (LD501P)
- Initial accuracy: ±1%
- Accuracy over line, load, and temperature: ±2.5%
