| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $1.92 | $1.92 |
| 15+ | $0.11 | $1.65 |
| 25+ | $0.11 | $2.75 |
| 50+ | $0.10 | $5.00 |
| 100+ | $0.09 | $9.00 |
| N+ | $0.02 | Price Inquiry |
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| Product attributes | Property Value |
| Manufacturer | Lumimax Optoelectronic Technology |
| Product Series | L78 |
| Packaging | Bulk | |
| 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) | 2V @ 1A |
| Current - Output | 1.5A |
| Current - Quiescent (Iq) | 8 mA |
| Current - Supply (Max) | - |
| PSRR | 62dB (120Hz) |
| Control Features | - |
| Protection Features | Over Current, Over Temperature, Short Circuit |
| Operating Temperature | -25°C ~ 125°C (TJ) |
| Grade | - |
| Qualification | - |
| Mounting Type | Through Hole |
| Package / Case | TO-220-3 |
| Supplier Device Package | TO-220 |
The L7805 is a fixed 5V linear voltage regulator capable of delivering up to 1.5A of output current. Housed in a TO-220 package, it offers a dropout voltage of 2V at 1A and a quiescent current of 8 mA. With a power supply rejection ratio of 62dB at 120Hz, it effectively filters mains ripple, making it suitable for industrial controls, audio equipment, and general-purpose 5V power supplies.
- High Output Current: Delivers up to 1.5A, sufficient for powering multiple ICs and relays.
- Excellent Ripple Rejection: 62dB PSRR at 120Hz ensures clean DC output for audio and precision circuits.
- Robust TO-220 Package: Facilitates easy heatsink attachment for thermal management in high-load applications.
- Low Quiescent Current: 8 mA quiescent current improves efficiency in always-on systems.
Industrial Power Supplies
Provides a stable 5V rail for microcontrollers and logic circuits in industrial control systems, leveraging its 1.5A current capability and 62dB PSRR at 120Hz to reject mains ripple.
Bench Power Supply Output Stage
Used as a post-regulator after a variable supply to deliver a clean, fixed 5V output for testing sensitive analog and digital circuits, thanks to its low output impedance and robust thermal performance in TO-220.
Automotive Sensor Interfaces
Regulates vehicle battery voltage down to 5V for sensor modules, with the 2V dropout ensuring operation during cold-crank conditions when battery voltage dips.
Audio Equipment Bias Supplies
Provides a quiet 5V supply for op-amp biasing and digital audio codecs, where the 62dB ripple rejection at 120Hz minimizes hum from rectified AC mains.
5V Logic for Home Appliances
Powers 5V relays, displays, and control boards in washing machines and microwaves, offering simple, reliable regulation with built-in thermal shutdown protection.
Prototyping and Education
Ideal for breadboard projects and lab experiments requiring a fixed 5V source, with through-hole TO-220 packaging that is easy to mount on heatsinks.
- Q: What is the output voltage of the L7805?
- A: The L7805 provides a fixed 5V output.
- Q: What is the maximum output current?
- A: It can deliver up to 1.5A of output current.
- Q: What is the input voltage range?
- A: The input voltage must be at least 5V plus the dropout voltage (2V @ 1A), so typically 7V or higher.
- Q: What is the dropout voltage?
- A: The dropout voltage is 2V at 1A load current.
- Q: What is the quiescent current?
- A: The quiescent current is 8 mA.
- Q: What package is available?
- A: The L7805 is available in the TO-220 package.
L7805.pdf
- Q: What is the output voltage of the L7805?
- A: The L7805 provides a fixed 5V output.
- Q: What is the maximum output current?
- A: It can deliver up to 1.5A of output current.
- Q: What is the input voltage range?
- A: The input voltage must be at least 5V plus the dropout voltage (2V @ 1A), so typically 7V or higher.
- Q: What is the dropout voltage?
- A: The dropout voltage is 2V at 1A load current.
- Q: What is the quiescent current?
- A: The quiescent current is 8 mA.
- Q: What package is available?
- A: The L7805 is available in the TO-220 package.
