Microchip Technology MCP1804T-1802I/MB

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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 RoHS Compliant - Hazardous Substance Free Electronic Components | HQICKEY

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.
Base Product Number : MCP1804
1.8V 100mA Fixed Output LDO Linear Regulator Low Quiescent Current Microchip SOT-89-3
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.