Texas Instruments UA78M05CDCYG3
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $0.70 | $0.70 |
| 15+ | $0.68 | $10.20 |
| 25+ | $0.67 | $16.75 |
| 50+ | $0.63 | $31.50 |
| 100+ | $0.56 | $56.00 |
| N+ | $0.11 | Price Inquiry |
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| Product attributes | Property Value |
| Manufacturer | Texas Instruments |
| Product Series | |
| Packaging | Tube | |
| Output Configuration | Positive |
| Output Type | Fixed |
| Number of Regulators | 1 |
| Voltage - Input (Max) | 25V |
| Voltage - Output (Min/Fixed) | 5V |
| Voltage - Output (Max) | - |
| Voltage Dropout (Max) | 2V @ 350mA |
| Current - Output | 500mA |
| Current - Quiescent (Iq) | - |
| Current - Supply (Max) | - |
| PSRR | 80dB (120Hz) |
| Control Features | - |
| Protection Features | Over Current, Over Temperature, Short Circuit |
| Operating Temperature | 0°C ~ 125°C |
| Grade | - |
| Qualification | - |
| Mounting Type | Surface Mount |
| Package / Case | TO-261-4, TO-261AA |
| Supplier Device Package | SOT-223-4 |
| ROHS |  |
The UA78M05CDCYG3 from Texas Instruments is a fixed 5V linear voltage regulator delivering up to 500mA. Housed in a compact SOT-223-4 package, it offers excellent ripple rejection of 80dB at 120Hz, ensuring clean power for sensitive electronics. With a dropout voltage of 2V at 350mA, it operates reliably from input voltages up to 25V. This regulator includes internal current limiting and thermal shutdown for robust protection in industrial and consumer applications.
- High Ripple Rejection: 80dB PSRR at 120Hz ensures minimal mains noise on the output, critical for precision analog circuits.
- Compact SOT-223 Package: Saves board space while dissipating heat effectively for 500mA loads.
- Wide Input Range: Accepts up to 25V input, providing flexibility in multi-rail systems.
- Built-in Protection: Thermal shutdown and current limiting safeguard the regulator and downstream components.
5V Digital Logic Power
The fixed 5V output and 500mA capability make it ideal for powering microcontrollers, FPGAs, and digital logic ICs in industrial control systems.
Analog Sensor Supply
With 80dB PSRR at 120Hz, it effectively filters mains ripple, ensuring clean power for precision analog sensors and ADCs.
Post-Switching Regulator Cleanup
Place after a buck converter to remove switching noise and provide a low-noise 5V rail for audio or measurement equipment.
Automotive ECU Power
The wide input range and robust SOT-223 package suit automotive electronics requiring stable 5V from a 12V battery bus.
Industrial Control Boards
Its 500mA output can power multiple peripheral ICs, relays, and optocouplers on PLC I/O boards with thermal protection.
Battery-Powered Instruments
Low quiescent operation and stable output extend battery life in portable meters and handheld test equipment.
- Q: What is the output voltage of the UA78M05CDCYG3?
- A: The fixed output voltage is 5V, ideal for powering 5V logic and analog circuits.
- Q: What is the maximum output current?
- A: It can deliver up to 500mA of continuous output current.
- Q: What is the input voltage range?
- A: The input voltage must be at least 5V plus the dropout voltage; typical operation is from 7V to 25V.
- Q: What is the dropout voltage?
- A: Dropout is 2V at 350mA load, meaning input must be at least 2V above 5V for regulation.
- Q: What package is available?
- A: It comes in a compact SOT-223-4 surface-mount package.
- Q: Does it have good ripple rejection?
- A: Yes, PSRR is 80dB at 120Hz, providing clean output for sensitive loads.
UA78M05CDCYG3.pdf
- Q: What is the output voltage of the UA78M05CDCYG3?
- A: The fixed output voltage is 5V, ideal for powering 5V logic and analog circuits.
- Q: What is the maximum output current?
- A: It can deliver up to 500mA of continuous output current.
- Q: What is the input voltage range?
- A: The input voltage must be at least 5V plus the dropout voltage; typical operation is from 7V to 25V.
- Q: What is the dropout voltage?
- A: Dropout is 2V at 350mA load, meaning input must be at least 2V above 5V for regulation.
- Q: What package is available?
- A: It comes in a compact SOT-223-4 surface-mount package.
- Q: Does it have good ripple rejection?
- A: Yes, PSRR is 80dB at 120Hz, providing clean output for sensitive loads.
