Texas Instruments UA78L05AILPRE3
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $0.86 | $0.86 |
| 15+ | $0.83 | $12.45 |
| 25+ | $0.81 | $20.25 |
| 50+ | $0.77 | $38.50 |
| 100+ | $0.68 | $68.00 |
| N+ | $0.14 | Price Inquiry |
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| Product attributes | Property Value |
| Manufacturer | Texas Instruments |
| Product Series | |
| Packaging | Cut Tape (CT) | Tape & Reel (TR) |
| 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 | -40°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 Texas Instruments UA78L05AILPRE3 is a classic 5V fixed-output LDO regulator providing up to 100mA. With a dropout voltage of 1.7V at 40mA, it suits low-current applications where simplicity and reliability are key. The TO-92-3 package is compact and through-hole mountable, ideal for space-constrained and educational designs. Its 49dB PSRR at 120Hz ensures adequate noise filtering for basic analog circuits.
- Proven Reliability: TI's legacy 78L05 family with decades of field-proven performance.
- Compact TO-92 Package: Small footprint for space-limited designs, breadboard-friendly.
- Low Cost: Economical solution for basic 5V regulation needs.
- Simple Integration: Fixed output requires minimal external components.
Low-Power Microcontrollers
Provides 5V rail for 8-bit MCUs in simple control applications, with 100mA sufficient for logic and small peripherals.
Analog Reference Circuits
Stable 5V output for op-amp supplies and voltage references in sensor conditioning circuits, with 49dB PSRR at 120Hz.
Battery-Powered Devices
Ideal for low-current devices like remote controls and smoke detectors, where TO-92 package fits compact designs.
Interface Logic Level Shifting
Powers 5V logic for RS-232 and I2C level shifting in mixed-voltage systems, ensuring compatibility with legacy components.
Small Appliances
Regulates 5V for control boards in coffee makers, fans, and timers, offering reliable performance at low cost.
Prototyping and Education
Through-hole TO-92 package is breadboard-friendly, making it ideal for student projects and quick prototypes.
- Q: What is the output voltage of the UA78L05AILPRE3?
- A: Fixed 5V output.
- Q: What is the maximum output current?
- A: 100mA.
- Q: What is the input voltage range?
- A: Not specified in provided data; consult the datasheet.
- Q: What is the dropout voltage?
- A: 1.7V at 40mA load.
- Q: What is the quiescent current?
- A: Not specified in provided data.
- Q: What package is available?
- A: TO-92-3 package.
- Q: What is the output voltage of the UA78L05AILPRE3?
- A: Fixed 5V output.
- Q: What is the maximum output current?
- A: 100mA.
- Q: What is the input voltage range?
- A: Not specified in provided data; consult the datasheet.
- Q: What is the dropout voltage?
- A: 1.7V at 40mA load.
- Q: What is the quiescent current?
- A: Not specified in provided data.
- Q: What package is available?
- A: TO-92-3 package.

UA78L05AILPRE3.pdf