Microchip Technology MCP1804T-1802I/MB
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $0.90 | $0.90 |
| 15+ | $0.87 | $13.05 |
| 25+ | $0.86 | $21.50 |
| 50+ | $0.81 | $40.50 |
| 100+ | $0.71 | $71.00 |
| N+ | $0.14 | Price Inquiry |
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| Product attributes | Property Value |
| Manufacturer | Microchip Technology |
| Product Series | |
| Packaging | Cut Tape (CT) | |
| Output Configuration | Active |
| Output Type | Positive |
| Number of Regulators | Fixed |
| Voltage - Input (Max) | 28V |
| Voltage - Output (Min/Fixed) | 1.8V |
| Voltage - Output (Max) | - |
| Voltage Dropout (Max) | 2.7V @ 100mA |
| Current - Output | 100mA |
| Current - Quiescent (Iq) | 105 μA |
| Current - Supply (Max) | 125 μA |
| PSRR | 50dB (1kHz) |
| Control Features | - |
| Protection Features | Over Current, Over Temperature |
| Operating Temperature | -40°C ~ 85°C |
| Grade | - |
| Qualification | - |
| Mounting Type | Surface Mount |
| Package / Case | TO-243AA |
| Supplier Device Package | SOT-89-3 |
| ROHS |
The Microchip MCP1804T-1802I/MB is a fixed-output LDO linear regulator designed to deliver a stable 1.8V supply from a higher input voltage. Capable of sourcing up to 100mA, it is well-suited for a variety of low-power applications. With a quiescent current of only 105 μA and a PSRR of 50dB at 1kHz, this regulator helps maintain signal integrity and power efficiency in battery-operated and noise-sensitive circuits. The device is available in a compact SOT-89-3 package.
- Stable 1.8V Output: Provides a precise fixed voltage, simplifying circuit design and ensuring consistent performance for digital and analog loads.
- Low Quiescent Current (105 μA): Enhances battery life in portable applications by minimizing the current drawn from the power source when the load is idle.
- Good Power Supply Rejection (50dB @ 1kHz): Filters out input voltage noise, delivering a cleaner output for sensitive analog and RF components.
- Compact SOT-89-3 Package: Suitable for space-constrained PCB layouts, allowing for high-density designs.
Battery-Powered Devices
Ideal for low-power, battery-operated equipment where a stable 1.8V rail is needed. The low quiescent current of 105 μA helps extend battery life during standby.
Portable Consumer Electronics
Provides a clean, regulated 1.8V supply for microcontrollers and sensors in portable devices, ensuring reliable operation despite varying battery voltage.
Industrial Control Systems
With a maximum current of 100mA, it can power logic circuits and interface ICs in industrial control modules, offering a stable voltage reference.
Power Supply for Analog Circuits
The 50dB PSRR at 1kHz helps reduce power supply noise, making it suitable for powering sensitive analog circuits like op-amps and ADCs.
Communication Modules
Provides a stable 1.8V supply for RF and baseband processors in communication modules, ensuring consistent performance.
Wearable Technology
The compact SOT-89-3 package and low current draw make it suitable for space-constrained wearable devices that require a reliable 1.8V rail.
- Q: What is the output voltage of the MCP1804T-1802I/MB?
- A: The fixed output voltage is 1.8V.
- Q: What is the maximum output current?
- A: It can deliver up to 100mA.
- Q: What is the input voltage range?
- A: The input voltage range is not specified in the provided data; refer to the datasheet for the full range.
- Q: What is the dropout voltage?
- A: The dropout voltage is 2.7V at 100mA output current.
- Q: What is the quiescent current?
- A: The quiescent current is 105 μA.
- Q: What package is available?
- A: It comes in a SOT-89-3 package.
- Q: What is the output voltage of the MCP1804T-1802I/MB?
- A: The fixed output voltage is 1.8V.
- Q: What is the maximum output current?
- A: It can deliver up to 100mA.
- Q: What is the input voltage range?
- A: The input voltage range is not specified in the provided data; refer to the datasheet for the full range.
- Q: What is the dropout voltage?
- A: The dropout voltage is 2.7V at 100mA output current.
- Q: What is the quiescent current?
- A: The quiescent current is 105 μA.
- Q: What package is available?
- A: It comes in a SOT-89-3 package.

MCP1804T-1802I/MB.pdf