Texas Instruments UA78L05ACLPM
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $0.64 | $0.64 |
| 15+ | $0.15 | $2.25 |
| 25+ | $0.14 | $3.50 |
| 50+ | $0.14 | $7.00 |
| 100+ | $0.12 | $12.00 |
| N+ | $0.02 | Price Inquiry |
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| Product attributes | Property Value |
| Manufacturer | Texas Instruments |
| Product Series | |
| Packaging | Marketplace | Tape & Box (TB) |
| Output Configuration | Positive |
| Output Type | Fixed |
| Number of Regulators | 1 |
| Voltage - Input (Max) | 20V |
| Voltage - Output (Min/Fixed) | 5V |
| Voltage - Output (Max) | - |
| Voltage Dropout (Max) | 1.7V @ 40mA |
| Current - Output | 100mA |
| Current - Quiescent (Iq) | - |
| Current - Supply (Max) | - |
| PSRR | 49dB (120Hz) |
| Control Features | - |
| Protection Features | Over Current, Over Temperature, Reverse Polarity, Short Circuit |
| Operating Temperature | 0°C ~ 125°C |
| Grade | - |
| Qualification | - |
| Mounting Type | Through Hole |
| Package / Case | TO-226-3, TO-92-3 (TO-226AA) Formed Leads |
| Supplier Device Package | TO-92-3 |
The UA78L05ACLPM is a fixed 5V linear regulator from Texas Instruments, capable of 100mA output. In a TO-92-3 package, it features 1.7V dropout at 40mA and 49dB PSRR at 120Hz. This LDO delivers stable power for microcontrollers, analog circuits, and sensor modules. Its through-hole design is perfect for breadboards and permanent PCB mounting, offering a simple, cost-effective power solution.
- Precise 5V Regulation: Maintains output within tight tolerance for sensitive digital loads.
- Excellent Ripple Rejection: 49dB at 120Hz minimizes AC noise, ideal for audio and measurement.
- Easy Integration: TO-92-3 package fits standard 0.1-inch grids, simplifying PCB layout.
- Thermal Protection: Internal current limiting and thermal shutdown protect against overloads.
5V Rail for Sensor Interfaces
Provides a clean 5V supply for temperature sensors, Hall-effect sensors, and ADC front-ends, ensuring accurate readings.
Power for RS-232 Transceivers
With 100mA output, it can drive low-power RS-232 line drivers in legacy industrial equipment.
Audio Preamplifier Supply
The 49dB PSRR at 120Hz reduces hum from rectified AC, improving audio signal clarity in small mixers.
Battery-Powered Devices
For 9V battery applications, the 1.7V dropout allows operation down to ~6.7V, extending usable battery life.
Logic Level Shifter Bias
Use it to bias level-shifting circuits that require a stable 5V reference for I2C or SPI communication.
Educational Kits
Through-hole TO-92 makes it ideal for student projects and lab experiments on linear regulation principles.
- Q: What is the output voltage?
- A: Fixed 5V output, suitable for standard 5V digital and analog systems.
- Q: What is the maximum current?
- A: Up to 100mA continuous output current.
- Q: What input voltage is required?
- A: Input should be 5V nominal; minimum 6.7V for regulation due to 1.7V dropout.
- Q: What is the dropout voltage?
- A: 1.7V at 40mA load, typical for this bipolar LDO.
- Q: What package does it use?
- A: TO-92-3 through-hole package.
- Q: What is the PSRR?
- A: 49dB at 120Hz, good for filtering low-frequency ripple.
UA78L05ACLPM.pdf
- Q: What is the output voltage?
- A: Fixed 5V output, suitable for standard 5V digital and analog systems.
- Q: What is the maximum current?
- A: Up to 100mA continuous output current.
- Q: What input voltage is required?
- A: Input should be 5V nominal; minimum 6.7V for regulation due to 1.7V dropout.
- Q: What is the dropout voltage?
- A: 1.7V at 40mA load, typical for this bipolar LDO.
- Q: What package does it use?
- A: TO-92-3 through-hole package.
- Q: What is the PSRR?
- A: 49dB at 120Hz, good for filtering low-frequency ripple.
