Texas Instruments LM78L05ACZ/LFT4
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $0.88 | $0.88 |
| 15+ | $0.24 | $3.60 |
| 25+ | $0.23 | $5.75 |
| 50+ | $0.22 | $11.00 |
| 100+ | $0.20 | $20.00 |
| N+ | $0.04 | Price Inquiry |
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| Product attributes | Property Value |
| Manufacturer | Texas Instruments |
| Product Series | |
| Packaging | Tape & Box (TB) | Cut Tape (CT) |
| 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) | - |
| Current - Output | 100mA |
| Current - Quiescent (Iq) | 3 mA |
| Current - Supply (Max) | - |
| PSRR | 62dB (120Hz) |
| Control Features | - |
| Protection Features | Over Temperature, 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 LM78L05ACZ is a classic fixed 5V linear regulator from National Semiconductor, delivering up to 100mA in a through-hole TO-92-3 package. It features a low quiescent current of 3mA and excellent PSRR of 62dB at 120Hz, making it a reliable choice for low-power applications requiring a stable 5V supply.
- Proven Reliability: Industry-standard 78L05 architecture with decades of field use.
- Low Power Consumption: 3mA quiescent current minimizes standby losses in battery-powered gear.
- Excellent Ripple Rejection: 62dB PSRR at 120Hz ensures clean DC for analog circuits.
- Simple Integration: TO-92 package with 3 pins is easy to solder and breadboard.
Microcontroller Power Supplies
The fixed 5V output and 100mA capability are ideal for powering small 8-bit MCUs and their peripheral logic in embedded control systems.
Analog Reference Rails
With 62dB PSRR at 120Hz, it effectively filters full-wave rectifier ripple, providing a stable reference for analog comparators and simple sensors.
Low-Power Audio Circuits
The clean 5V rail helps minimize hum and noise in small audio preamplifiers and headphone drivers.
Industrial Control Logic
Its TO-92 package and simple 3-pin interface make it easy to integrate into PLC I/O modules for local 5V logic supplies.
Consumer Appliances
Used in appliances with simple digital displays and control panels, providing reliable 5V regulation from a higher unregulated DC bus.
- Q: What is the output voltage?
- A: The LM78L05ACZ provides a fixed 5V output.
- Q: What is the maximum output current?
- A: It can supply up to 100mA of output current.
- Q: What is the input voltage range?
- A: The input voltage range is not specified in the provided data; refer to the datasheet.
- Q: What is the quiescent current?
- A: The quiescent current is 3mA.
- Q: What is the PSRR?
- A: PSRR is 62dB at 120Hz.
- Q: What is the package type?
- A: It is available in a TO-92-3 package.
- Q: What is the output voltage?
- A: The LM78L05ACZ provides a fixed 5V output.
- Q: What is the maximum output current?
- A: It can supply up to 100mA of output current.
- Q: What is the input voltage range?
- A: The input voltage range is not specified in the provided data; refer to the datasheet.
- Q: What is the quiescent current?
- A: The quiescent current is 3mA.
- Q: What is the PSRR?
- A: PSRR is 62dB at 120Hz.
- Q: What is the package type?
- A: It is available in a TO-92-3 package.

LM78L05ACZ/LFT4.pdf