The MCP1804 is a CMOS low dropout linear regulator that can operate from a 2.0V to 28.0V input voltage range and delivers up to 150mA of output current with only 50µA of input current. The device supports output voltages from 1.8V to 18.0V in 0.1V increments, with an output voltage accuracy of ±2%.
The MCP1804 is a CMOS low‑dropout (LDO) voltage regulator that delivers up to 150 mA while consuming only 50 yA of quiescent current. It operates from 2.0 V to 28.0 V input, offers typical dropout voltage of 260 mV at 20 mA, and includes a shutdown pin that reduces current to 0.01 yA.
Typical applications include cordless phones, PDAs, notebooks, digital cameras, microcontroller power supplies, car audio/navigation systems, and home appliances. The device is offered in SOT‑23‑5, SOT‑89‑5, SOT‑89‑3, and SOT‑223‑3 packages.
| Output Current (Continuous) | 150 mA |
|---|---|
| Input Operating Voltage Range | 2.0 V to 28.0 V |
| Quiescent Current (typical) | 50 yA |
| Dropout Voltage (typical @ 20 mA) | 260 mV |
| Power Supply Rejection Ratio (PSRR) | 50 dB @ 1 kHz |
| Operating Temperature Range | -40 °C to +85 °C |
| Storage Temperature Range | -55 °C to +125 °C |
| Thermal Shutdown Temperature | 150 °C |
The MCP1804 draws about 50 yA of quiescent current under typical conditions.
The regulator operates with an input voltage from 2.0 V up to 28.0 V.
At a 20 mA load, the typical dropout voltage is 260 mV.