LM7805 Positive Voltage Regulator TO-220 5V
The LM7805 Positive Voltage Regulator TO-220 5V is a three-terminal linear regulator that provides a fixed 5V DC output from a higher voltage input. It is widely used in electronic circuits to ensure a stable and regulated power supply, protecting sensitive components from voltage fluctuations. The LM7805 regulator incorporates internal current limiting, thermal shutdown, and safe operating area protection, making it a robust choice for various applications.
Features
- Provides a fixed 5V output voltage.
- Output current up to 1.5A with proper heat sinking.
- Internal thermal overload and short-circuit protection.
- Requires minimal external components for operation.
- Available in standard TO-220 package for easy mounting.
Specifications
| SYMBOL | PARAMETER | TEST CONDITIONS | MIN | TYP | MAX | UNIT |
|---|---|---|---|---|---|---|
| VO | Output voltage | TJ = 25 °C, 5 mA ≤ IO ≤ 1 A | 4.8 | 5 | 5.2 | V |
| PD ≤ 15 W, 5 mA ≤ IO ≤ 1 A, 7.5 V ≤ VIN ≤ 20 V | 4.75 | 5.25 | V | |||
| ΔVO | Line regulation | IO = 500 mA, TJ = 25 °C, 7 V ≤ VIN ≤ 25 V | 3 | 50 | mV | |
| IO = 500 mA, 8 V ≤ VIN ≤ 20 V, Over temperature | 50 | mV | ||||
| IO ≤ 1 A, TJ = 25 °C, 7.5 V ≤ VIN ≤ 20 V | 50 | mV | ||||
| IO ≤ 1 A, 8 V ≤ VIN ≤ 12 V, Over temperature | 25 | mV | ||||
| ΔVO | Load regulation | TJ = 25 °C, 5 mA ≤ IO ≤ 1.5 A | 10 | 50 | mV | |
| TJ = 25 °C, 250 mA ≤ IO ≤ 750 mA | 25 | mV | ||||
| 5 mA ≤ IO ≤ 1 A, Over temperature | 50 | mV | ||||
| IQ | Quiescent current | IO ≤ 1 A, TJ = 25 °C | 8 | mA | ||
| IO ≤ 1 A, Over temperature | 8.5 | mA | ||||
| ΔIQ | Quiescent current change | 0 °C ≤ TJ ≤ 125 °C, 5 mA ≤ IO ≤ 1 A | 0.5 | mA | ||
| 7 V ≤ VIN ≤ 20 V, TJ = 25 °C, IO ≤ 1 A | 1 | mA | ||||
| 7 V ≤ VIN ≤ 20 V, IO ≤ 500 mA, Over temperature | 1 | mA | ||||
| VN | Output noise voltage | TA = 25 °C, 10 Hz ≤ f ≤ 100 kHz | 40 | μV | ||
| ΔVIN / ΔVOUT | Ripple rejection | f = 120 Hz, 8 V ≤ VIN ≤ 18 V, TJ = 25 °C, IO ≤ 1 A | 62 | 80 | dB | |
| f = 120 Hz, 8 V ≤ VIN ≤ 18 V, IO ≤ 500 mA Over temperature | 62 | dB | ||||
| Vd | Dropout voltage | TJ = 25 °C, IO = 1 A | 2 | V | ||
| Ro | Output resistance | f = 1 kHz | 8 | mΩ | ||
| ISC | Short-circuit current | TJ = 25 °C | 2.1 | A | ||
| IPK | Peak output current | TJ = 25 °C | 2.4 | A | ||
| TC | Average TC of VOUT | IO = 5 mA, Over temperature | -0.6 | mV/°C | ||
| VIN | Input voltage required to maintain line regulation | TJ = 25 °C, IO ≤ 1 A | 7.5 | V |
All characteristics are measured with a 0.22-μF capacitor from input to ground and a 0.1-μF capacitor from output to ground. All characteristics except noise voltage and ripple rejection ratio are measured using pulse techniques (tw ≤ 10 ms, duty cycle ≤ 5%). Output voltage changes due to changes in internal temperature must be taken into account separately.
Note: Complete Technical Details can be found on the LM7805 datasheet given at the end of this page.
PINOUT
Applications
- Power supply for microcontrollers and digital circuits.
- Voltage regulation in battery-powered devices.
- Embedded systems requiring a stable 5V supply.
- General-purpose voltage regulation in electronic projects.
Package Contents
- 1x LM7805 Positive Voltage Regulator TO-220 5V.