TAEJIN LM7805R
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $1.33 | $1.33 |
| 15+ | $0.30 | $4.50 |
| 25+ | $0.30 | $7.50 |
| 50+ | $0.28 | $14.00 |
| 100+ | $0.25 | $25.00 |
| N+ | $0.05 | Price Inquiry |
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| Product attributes | Property Value |
| Manufacturer | TAEJIN |
| Product Series | |
| Packaging | 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) | 2V @ 1A |
| Current - Output | 1.5A |
| Current - Quiescent (Iq) | 8 mA |
| Current - Supply (Max) | - |
| PSRR | - |
| Control Features | - |
| Protection Features | Over Current, Over Temperature, Short Circuit |
| Operating Temperature | -40°C ~ 125°C (TJ) |
| Grade | - |
| Qualification | - |
| Mounting Type | Surface Mount |
| Package / Case | TO-263-4, D2PAK (3 Leads + Tab), TO-263AA |
| Supplier Device Package | TO-263-3 |
The LM7805R is a fixed 5V linear voltage regulator capable of delivering up to 1.5A of output current. With a dropout voltage of 2V at 1A, it requires a minimum input of 7V for reliable regulation. The TO-263-3 package ensures efficient heat dissipation, making it suitable for continuous operation in power supplies for microcontrollers, logic circuits, and sensors. This regulator offers a simple, cost-effective solution for 5V power rails.
- Fixed 5V Output: Simplifies design by eliminating the need for external resistor dividers, reducing component count.
- High Current Capability: 1.5A output supports multiple loads, making it versatile for various 5V applications.
- Low Quiescent Current: 8 mA quiescent current minimizes standby power consumption in always-on systems.
- Robust Package: TO-263-3 (D2PAK) provides excellent thermal performance, ensuring reliability at high currents.
Microcontroller Power Supply
The fixed 5V output is ideal for powering Arduino, PIC, STM32, and other microcontrollers, providing a stable logic supply from a higher input voltage.
Digital Logic Circuits
Provides a clean 5V rail for TTL and CMOS logic ICs, ensuring reliable operation of counters, decoders, and memory devices.
Sensor Interface Boards
Powers 5V sensors and transducers (e.g., hall-effect sensors, temperature sensors) in industrial and consumer applications.
Relay and Solenoid Drivers
Supplies 5V to driver circuits and optocouplers that control relays and solenoids, ensuring consistent switching performance.
USB Power Supply (Legacy)
Can be used to generate a 5V rail for USB devices in legacy designs where a linear regulator is preferred over a switching converter.
Automotive Electronics
Regulates vehicle battery voltage (12V) down to 5V for infotainment systems, sensors, and control modules.
- Q: What is the output voltage of the LM7805R?
- A: The LM7805R is a fixed 5V positive voltage regulator, providing a stable 5V output for digital logic and microcontroller circuits.
- Q: What is the maximum output current?
- A: It can deliver up to 1.5A of output current, suitable for powering multiple ICs and peripheral devices.
- 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 to 25V is recommended for proper regulation.
- Q: What is the dropout voltage?
- A: The dropout voltage is 2V at 1A load, meaning the input must be at least 2V higher than the output for regulation.
- Q: What is the quiescent current?
- A: The quiescent current is 8 mA, which is typical for fixed 5V regulators of this class.
- Q: What package is available?
- A: The LM7805R is available in a TO-263-3 (D2PAK) package, providing good thermal dissipation for up to 1.5A loads.
LM7805R.pdf
- Q: What is the output voltage of the LM7805R?
- A: The LM7805R is a fixed 5V positive voltage regulator, providing a stable 5V output for digital logic and microcontroller circuits.
- Q: What is the maximum output current?
- A: It can deliver up to 1.5A of output current, suitable for powering multiple ICs and peripheral devices.
- 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 to 25V is recommended for proper regulation.
- Q: What is the dropout voltage?
- A: The dropout voltage is 2V at 1A load, meaning the input must be at least 2V higher than the output for regulation.
- Q: What is the quiescent current?
- A: The quiescent current is 8 mA, which is typical for fixed 5V regulators of this class.
- Q: What package is available?
- A: The LM7805R is available in a TO-263-3 (D2PAK) package, providing good thermal dissipation for up to 1.5A loads.
