Microchip Technology MCP1804T-J002I/DB
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $0.85 | $0.85 |
| 15+ | $0.82 | $12.30 |
| 25+ | $0.80 | $20.00 |
| 50+ | $0.76 | $38.00 |
| 100+ | $0.67 | $67.00 |
| N+ | $0.13 | 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) | 28V |
| Voltage - Output (Min/Fixed) | 18V |
| Voltage - Output (Max) | - |
| Voltage Dropout (Max) | 0.85V @ 100mA |
| Current - Output | 150mA |
| Current - Quiescent (Iq) | 125 µA |
| Current - Supply (Max) | - |
| PSRR | 50dB (1kHz) |
| Control Features | - |
| Protection Features | Over Current, Over Temperature, Short Circuit |
| Operating Temperature | -40°C ~ 85°C (TA) |
| Grade | - |
| Qualification | - |
| Mounting Type | Surface Mount |
| Package / Case | TO-261-4, TO-261AA |
| Supplier Device Package | SOT-223-3 |
| ROHS |
The MCP1804T-J002I/DB from Microchip Technology is a fixed 18V low-dropout regulator delivering 150mA. With an input range up to 28V and dropout of just 0.85V at 100mA, it excels in high-voltage industrial and automotive environments. The SOT-223-3 package offers excellent thermal performance, while 125µA quiescent current supports always-on applications.
- High Input Tolerance: Handles up to 28V, ideal for 24V systems.
- Low Dropout: 0.85V at 100mA maximizes efficiency in high-voltage differentials.
- Thermal Efficiency: SOT-223 package dissipates heat effectively for 150mA loads.
- Stable Output: 50dB PSRR at 1kHz rejects switching noise.
Automotive ECU Power
18V output from a 24V truck battery (with 28V max input) provides stable power for sensors and microcontrollers in heavy-duty vehicles.
Industrial Sensor Transmitters
150mA and 0.85V dropout allow operation from 24V industrial loops, powering 4-20mA transmitters with clean 18V rails.
Telecom Line Cards
High input tolerance handles -48V to +24V conversions, delivering 18V for line driver ICs in networking equipment.
Solar Charge Controllers
Regulates unregulated panel output (up to 28V) down to 18V for battery charging logic in off-grid systems.
HVAC Actuator Drives
Provides 18V for valve actuators in building automation, with 50dB PSRR at 1kHz rejecting motor noise.
Medical Device Power
Stable 18V rail for precision pumps and monitors, with low quiescent current for battery backup modes.
- Q: What is the output voltage?
- A: Fixed 18V output.
- Q: What is the maximum output current?
- A: 150mA.
- Q: What is the input voltage range?
- A: Up to 28V (absolute maximum).
- Q: What is the dropout voltage?
- A: 0.85V at 100mA load.
- Q: What is the quiescent current?
- A: 125µA typical.
- Q: What package is available?
- A: SOT-223-3.
- Q: What is the output voltage?
- A: Fixed 18V output.
- Q: What is the maximum output current?
- A: 150mA.
- Q: What is the input voltage range?
- A: Up to 28V (absolute maximum).
- Q: What is the dropout voltage?
- A: 0.85V at 100mA load.
- Q: What is the quiescent current?
- A: 125µA typical.
- Q: What package is available?
- A: SOT-223-3.

MCP1804T-J002I/DB.pdf