Analog Devices / Maxim Integrated ADPL40505A Low-Dropout (LDO) Linear Regulator
Analog Devices ADPL40505A Low-Dropout (LDO) Linear Regulator is a 5.5V, P-Channel Metal-Oxide Semiconductor (PMOS) LDO linear regulator that delivers up to 500mA of load current. The ADPL40505A features a low-power mode of operation that consumes very low quiescent current from the supply.
The regulator is fully protected from damage by internal circuitry that provides programmable inrush current limiting, output overcurrent limiting, reverse current limiting, and thermal overload protection. The ADPL40505A features an 800Ω active discharge path to quickly discharge output capacitors.
The Analog Devices ADPL40505A provides enhanced flexibility with an adjustable output voltage range of 0.8V to 5.0V via two external feedback resistors. The ADPL40505A is available in an 8-pin, 2mm x 2mm Thin Dual Flat No-Lead (TDFN) package.
Features
- 1.7V to 5.5V input supply range
- 0.8V to 5.0V output voltage range
- 500mA maximum output current
- 120mV maximum dropout at 500mA load (3.6VIN)
- 20μA no-load supply current in low-power mode
- 50μA supply current in normal mode
- <1μA shutdown supply current
- 45μVRMS output noise, 10Hz to 100kHz
- 60dB PSRR at 10kHz, 250mA load current, and 300mV input and output voltage separation
- ±2% DC accuracy over load, line, and temperature variations
- 800Ω active discharge at OUT
- Stable with 2μF (minimum effective) output capacitance
- Programmable soft-start rate
- Overcurrent and overtemperature protection
- Reverse-current protection
- Power-OK output
- 2mm x 2mm, 8-pin TDFN package
- -40°C to +125°C operating temperature
Applications
- Mobile phones
- Digital camera and audio devices
- Portable and battery-powered equipment
Application Diagram
