Texas Instruments UA78L05ACLPR
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $0.82 | $0.82 |
| 15+ | $0.79 | $11.85 |
| 25+ | $0.77 | $19.25 |
| 50+ | $0.73 | $36.50 |
| 100+ | $0.65 | $65.00 |
| N+ | $0.13 | Price Inquiry |
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| Product attributes | Property Value |
| Manufacturer | Texas Instruments |
| Product Series | |
| Packaging | Marketplace | Cut Tape (CT) |
| 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 |
| ROHS |
The UA78L05ACLPR from Texas Instruments is a fixed 5V linear regulator capable of 100mA output. Housed in a TO-92-3 package, it is a classic choice for through-hole designs. Its low dropout and good PSRR make it suitable for a wide range of consumer and industrial applications.
- Fixed 5V Output: Standard voltage for logic and MCU circuits, no external setting required.
- TO-92-3 Package: Easy to use in prototyping and through-hole PCBs.
- 100mA Output: Adequate for small digital and analog loads.
- Reliable Performance: TI's proven design ensures stable regulation and long life.
Microcontroller Power
The UA78L05ACLPR provides a clean 5V supply for 8-bit and 16-bit microcontrollers, ensuring stable operation in embedded systems.
Logic Level Converters
Use this regulator to power 5V logic ICs and level shifters, maintaining compatibility with legacy TTL circuits.
Analog Reference
With 49dB PSRR at 120Hz, it can power precision analog circuits like ADCs and DACs that require a quiet 5V rail.
Battery Chargers
Provide a regulated 5V supply for charging circuits in portable devices, ensuring consistent charging current.
LED Indicators
Power LED driver circuits with a stable 5V source, preventing brightness fluctuations due to input variations.
Hobbyist Projects
Ideal for breadboard and DIY projects, the TO-92-3 package is easy to solder and widely available.
- Q: What is the output voltage of the UA78L05ACLPR?
- A: The output voltage is fixed at 5V.
- 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 must be at least 5V, with a dropout of 1.7V at 40mA.
- Q: What is the dropout voltage?
- A: The dropout voltage is 1.7V at 40mA load.
- Q: What is the PSRR?
- A: PSRR is 49dB at 120Hz.
- Q: What package is used?
- A: It comes in a TO-92-3 package.
- Q: What is the output voltage of the UA78L05ACLPR?
- A: The output voltage is fixed at 5V.
- 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 must be at least 5V, with a dropout of 1.7V at 40mA.
- Q: What is the dropout voltage?
- A: The dropout voltage is 1.7V at 40mA load.
- Q: What is the PSRR?
- A: PSRR is 49dB at 120Hz.
- Q: What package is used?
- A: It comes in a TO-92-3 package.

UA78L05ACLPR.pdf