Texas Instruments UA78L05ACDRM3
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $0.29 | $0.29 |
| 15+ | $0.28 | $4.20 |
| 25+ | $0.27 | $6.75 |
| 50+ | $0.26 | $13.00 |
| 100+ | $0.23 | $23.00 |
| N+ | $0.05 | Price Inquiry |
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| Product attributes | Property Value |
| Manufacturer | Texas Instruments |
| Product Series | UA78L |
| Packaging | Cut Tape (CT) | Tape & Reel (TR) |
| Output Configuration | Positive |
| Output Type | Fixed |
| Number of Regulators | 1 |
| Voltage - Input (Max) | 35V |
| Voltage - Output (Min/Fixed) | 5V |
| Voltage - Output (Max) | - |
| Voltage Dropout (Max) | 1.7V @ 40mA |
| Current - Output | 100mA |
| Current - Quiescent (Iq) | 6.5 mA |
| Current - Supply (Max) | - |
| PSRR | 55dB ~ 49dB (120Hz) |
| Control Features | - |
| Protection Features | Over Current, Over Temperature, Reverse Current, Short Circuit |
| Operating Temperature | -40°C ~ 125°C (TJ) |
| Grade | - |
| Qualification | - |
| Mounting Type | Surface Mount |
| Package / Case | 8-SOIC (0.154", 3.90mm Width) |
| Supplier Device Package | 8-SOIC |
| ROHS |  |
The UA78L05ACDRM3 is a fixed 5V linear regulator from Texas Instruments, delivering up to 100mA of output current. Housed in an 8-SOIC package, this LDO offers a dropout voltage of 1.7V at 40mA and a quiescent current of 6.5mA. With 55dB PSRR at 120Hz, it provides clean, stable power for a variety of low-current applications.
- Stable 5V Output: Fixed 5V regulation with 100mA capability ensures reliable power for logic and sensor circuits.
- Low Dropout Performance: 1.7V dropout at 40mA allows operation with reduced input-to-output headroom, improving efficiency in battery systems.
- Good Ripple Rejection: 55dB PSRR at 120Hz filters AC mains noise, making it suitable for audio and measurement equipment.
- Industry-Standard Package: 8-SOIC footprint simplifies PCB layout and is compatible with automated assembly processes.
5V Logic Power Supply
Provides a stable 5V rail for TTL/CMOS logic circuits, microcontrollers, and digital ICs requiring up to 100mA. The low dropout of 1.7V ensures regulation even with modest input headroom.
Battery-Powered Instrumentation
Ideal for portable meters and sensors where a regulated 5V supply is needed from a 9V battery. The 6.5mA quiescent current is acceptable for applications with intermittent operation.
Reference Voltage Source
Can serve as a precision 5V reference for ADC circuits or analog front-ends, leveraging the 55dB PSRR at 120Hz to reject mains hum.
Industrial Control Interfaces
Powers optocouplers, level shifters, and small relay drivers in industrial control panels, providing clean 5V from a 12V or 24V bus with simple decoupling.
Audio Preamp Supply
Supplies a quiet 5V rail for low-power audio op-amps, with PSRR of 49dB at higher frequencies reducing noise coupling from switching supplies.
Automotive Sensor Modules
Regulates vehicle battery voltage down to 5V for sensors like temperature or pressure transmitters, ensuring consistent output despite alternator ripple.
- Q: What is the output voltage of the UA78L05ACDRM3?
- A: The fixed output voltage is 5V.
- 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 specified in the provided data; typical operation requires input above 6.7V for 5V output.
- Q: What is the dropout voltage?
- A: The dropout voltage is 1.7V at 40mA load.
- Q: What is the quiescent current?
- A: The quiescent current is 6.5mA.
- Q: What package is available?
- A: The device comes in an 8-SOIC package.
UA78L05ACDRM3.pdf
- Q: What is the output voltage of the UA78L05ACDRM3?
- A: The fixed output voltage is 5V.
- 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 specified in the provided data; typical operation requires input above 6.7V for 5V output.
- Q: What is the dropout voltage?
- A: The dropout voltage is 1.7V at 40mA load.
- Q: What is the quiescent current?
- A: The quiescent current is 6.5mA.
- Q: What package is available?
- A: The device comes in an 8-SOIC package.
