Microchip Technology MCP1825ST-1802E/DB
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $0.66 | $0.66 |
| 15+ | $0.63 | $9.45 |
| 25+ | $0.62 | $15.50 |
| 50+ | $0.59 | $29.50 |
| 100+ | $0.52 | $52.00 |
| N+ | $0.10 | Price Inquiry |
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| Product attributes | Property Value |
| Manufacturer | Microchip Technology |
| Product Series | |
| Packaging | Cut Tape (CT) | Tape & Reel (TR) |
| Output Configuration | Positive |
| Output Type | Fixed |
| Number of Regulators | 1 |
| Voltage - Input (Max) | 6V |
| Voltage - Output (Min/Fixed) | 1.8V |
| Voltage - Output (Max) | - |
| Voltage Dropout (Max) | 0.35V @ 500mA |
| Current - Output | 500mA |
| Current - Quiescent (Iq) | 220 µA |
| Current - Supply (Max) | - |
| PSRR | 60dB (100Hz) |
| Control Features | - |
| Protection Features | Over Temperature, Short Circuit, Under Voltage Lockout (UVLO) |
| Operating Temperature | -40°C ~ 125°C |
| Grade | - |
| Qualification | - |
| Mounting Type | Surface Mount |
| Package / Case | TO-261-4, TO-261AA |
| Supplier Device Package | SOT-223-3 |
| ROHS |
The MCP1825ST-1802E/DB from Microchip Technology is a fixed 1.8V low-dropout linear regulator delivering up to 500mA. Housed in a SOT-223-3 package, it features a low dropout of 0.35V at full load and a quiescent current of just 220µA. With 60dB PSRR at 100Hz, it ensures stable operation in noise-sensitive portable and embedded applications. The input range of 2.1V to 6.0V makes it perfect for single-cell Li-Ion or 3.3V systems.
- Low Power Consumption: 220µA quiescent current maximizes battery life in portable devices.
- High Efficiency: 0.35V dropout at 500mA reduces power loss and heat generation.
- Compact Thermal Package: SOT-223-3 offers good heat dissipation in a small footprint.
- Stable Output: 60dB PSRR at 100Hz filters low-frequency noise from switching supplies.
FPGA Core Power
Provides a stable 1.8V core supply for low-power FPGAs and CPLDs, with 500mA capability for logic arrays.
Portable Battery Devices
Low 220µA quiescent current extends battery life in handheld meters and remote controls.
DDR Memory Termination
Supplies 1.8V for DDR2/DDR3 memory VDDQ rails, ensuring reliable data transfer in embedded systems.
Wireless Modules
Powers 1.8V I/O and logic sections of Wi-Fi and cellular modules, with 60dB PSRR at 100Hz reducing noise.
Microcontroller I/O
Regulates 1.8V for low-voltage MCU I/O banks, enabling compatibility with modern digital sensors.
Optical Transceivers
Provides clean 1.8V for laser driver logic in SFP modules, maintaining signal quality in data centers.
- Q: What is the output voltage of the MCP1825ST-1802E/DB?
- A: It provides a fixed output voltage of 1.8V.
- Q: What is the maximum output current?
- A: It can deliver up to 500mA of output current.
- Q: What is the input voltage range?
- A: The input voltage range is from 2.1V to 6.0V, suitable for low-voltage battery systems.
- Q: What is the dropout voltage?
- A: The dropout voltage is typically 0.35V at 500mA, enabling efficient low-headroom operation.
- Q: What is the quiescent current?
- A: The quiescent current is a low 220µA, ideal for power-sensitive applications.
- Q: What package is available?
- A: It is available in a SOT-223-3 package, which provides good thermal performance.
- Q: What is the output voltage of the MCP1825ST-1802E/DB?
- A: It provides a fixed output voltage of 1.8V.
- Q: What is the maximum output current?
- A: It can deliver up to 500mA of output current.
- Q: What is the input voltage range?
- A: The input voltage range is from 2.1V to 6.0V, suitable for low-voltage battery systems.
- Q: What is the dropout voltage?
- A: The dropout voltage is typically 0.35V at 500mA, enabling efficient low-headroom operation.
- Q: What is the quiescent current?
- A: The quiescent current is a low 220µA, ideal for power-sensitive applications.
- Q: What package is available?
- A: It is available in a SOT-223-3 package, which provides good thermal performance.

MCP1825ST-1802E/DB.pdf