The Microchip MCP1804 is a Low Dropout (LDO) Voltage Regulator that operates from an input of 2.0 V to 28 V while delivering up to 150 mA of current. The device offers a low quiescent current of 50 μA and only 1 μF of output capacitance is sufficient to stabilise the output. The MCP1804 also has a Current Foldback feature to help protect the device.
Features 150 mA Output Current
Low Dropout Voltage: 260 mV @ 20 mA, VR = 3.3 V (typical)
50 μA Quiescent Current (typical)
0.01 μA Shutdown Current (typical)
Input Operating Voltage Range: 2.0 V to 28.0 V
Output Voltage Accuracy: ±2%
Stable with Ceramic Output Capacitors
Current Limit Protection with Current Foldback
Shutdown Pin
High PSRR: 50 dB Typical @ 1 kHz
Feature
- Up to 300 mA output load current
- Low dropout voltage 200 mV (typ)
- Output voltage from 0.8V to 5.0V, both fixed and adjustable
- Standard Fixed Output Voltages: 0.8V, 1.2V, 1.8V, 2.5V, 3.0V, 3.3V, 5.0V. Other fixed output voltages available upon request.
- Stable with 1.0 µF ceramic output cap
- Power good output
- Low supply current 120 µA (typ)
- Low shutdown current of less than 0.1 µA (typ)
- SOT223-5 and SOT23-5 Pb-free package
