Texas Instruments UA78L05CLPR
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $0.78 | $0.78 |
| 15+ | $0.75 | $11.25 |
| 25+ | $0.74 | $18.50 |
| 50+ | $0.70 | $35.00 |
| 100+ | $0.62 | $62.00 |
| N+ | $0.12 | 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 |
The UA78L05CLPR from Texas Instruments is a classic fixed 5.0V linear regulator delivering up to 100mA. With a dropout of 1.7V at 40mA and PSRR of 49dB at 120Hz, it provides basic, reliable regulation for legacy and low-power applications. The TO-92-3 package is easy to use in through-hole designs.
- Proven Reliability: Decades of field use in industrial and consumer electronics.
- Simple Through-Hole Design: TO-92 package is easy to solder and breadboard.
- Adequate Current: 100mA output is sufficient for many small logic and analog circuits.
- Cost-Effective: Low-cost solution for basic 5V regulation needs.
Legacy 5V Logic Circuits
Power TTL and CMOS logic ICs in older industrial equipment, providing a reliable 5V rail with 100mA capability.
Microcontroller Reference Supply
Supply a stable 5V reference for 8-bit MCUs in simple control applications, with through-hole TO-92 for easy prototyping.
Analog Circuit Bias
Provide 5V bias for op-amps and comparators in sensor conditioning circuits, with 49dB PSRR reducing power supply noise.
Relay Driver Supply
Power small relay coils and indicator LEDs in control panels, leveraging the rugged TO-92 package and 100mA output.
Battery Charger Control
Regulate 5V for charger controller ICs in simple battery management systems, ensuring stable operation from unregulated adapters.
Educational and Hobby Projects
Ideal for breadboard and through-hole projects requiring a simple, reliable 5V source with minimal external components.
- Q: What is the output voltage of the UA78L05CLPR?
- A: It provides a fixed 5.0V output.
- Q: What is the maximum output current?
- A: The maximum output current is 100mA.
- Q: What is the input voltage range?
- A: The input voltage range is not explicitly provided, but typical operation is from 7V to 20V.
- Q: What is the dropout voltage?
- A: The dropout voltage is 1.7V at 40mA, requiring higher headroom than modern LDOs.
- Q: What is the PSRR?
- A: PSRR is 49dB at 120Hz, providing basic ripple rejection.
- Q: What package is available?
- A: It comes in a TO-92-3 package, a classic through-hole format.
UA78L05CLPR.pdf
- Q: What is the output voltage of the UA78L05CLPR?
- A: It provides a fixed 5.0V output.
- Q: What is the maximum output current?
- A: The maximum output current is 100mA.
- Q: What is the input voltage range?
- A: The input voltage range is not explicitly provided, but typical operation is from 7V to 20V.
- Q: What is the dropout voltage?
- A: The dropout voltage is 1.7V at 40mA, requiring higher headroom than modern LDOs.
- Q: What is the PSRR?
- A: PSRR is 49dB at 120Hz, providing basic ripple rejection.
- Q: What package is available?
- A: It comes in a TO-92-3 package, a classic through-hole format.
