Microchip Technology MCP1804 CMOS Low Dropout (LDO) Voltage Regulators
Microchip Technology MCP1804 CMOS Low Dropout (LDO) Voltage Regulators can deliver up to 150mA of current while consuming only 50µA of quiescent current (typical, 1.8V = VOUT = 5.0V). The input operating range of the MCP1804 LDOs is specified from 2.0V to 28.0V. These devices are capable of delivering 100mA with only 1300mV (typical) of input to output voltage differential (VOUT = 3.3V). The output voltage tolerance of the MCP1804 at +25°C is a maximum of ±2%. Line regulation is ±0.15% typical at +25°C.
MCP1804 Functional Block Diagram
The MCP1804 LDOs provide a stable input and output with 0.1µF of input and output capacitance. Ceramic, tantalum, or aluminum electrolytic capacitors can all be used for input and output. Overcurrent limit with current foldback to 40mA (typical) provides short-circuit protection. A shutdown (SHDN) function allows the output to be enabled or disabled. When disabled, the MCP1804 LDOs draw only 0.01µA of current (typical).
The Microchip Technology MCP1804 LDO Regulators are offered in 3-lead SOT-89, 3-lead SOT-223, 5-lead SOT-23, and 5-lead SOT-89 packages, with a -40°C to +85°C operating temperature range.
Features
- Input Operating Voltage Range: 2.0V to 28.0V
- 150mA Output Current
- 50µA Typical Quiescent Current
- 0.01µA Typical Shutdown Current
- Standard Output Voltage Options (1.8V, 2.5V, 3.0V, 3.3V, 5.0V, 10.0V, 12.0V)
- Output voltages from 1.8V to 18.0V in 0.1V increments
- Output Voltage Accuracy: ±2%
- Stable with Ceramic output capacitors down to 0.1µF
- Low Drop Out Voltage, 260mV typical at 20 mA, VR = 3.3V
- Current Limit Protection With Current Foldback
- High PSRR: 50dB typical @ 1kHz
- Output Voltage Accuracy: ±2%
- -40°C to +85°C operating temperature range
- Package Options: SOT-23-5, SOT-89-3, SOT-89-5, and SOT-223-3
Applications
- Wireless Communications
- Tablets, Notebooks, and Laptop Computers
- Digital Cameras
- Microcontroller Power
- Car Audio and Navigation Systems
- Home Appliances
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Block Diagram
Typical Application Circuit
