Overview
The MC7805CD2T is a three-terminal positive fixed voltage regulator produced by onsemi. This component is part of the MC78XX series, known for its reliability and performance in a wide range of applications. The MC7805CD2T is specifically designed to provide a stable 5V output voltage, making it suitable for various electronic systems that require a regulated power supply.
Key Specifications
| Characteristic | Symbol | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| Output Voltage (TJ = 25°C) | VO | 4.8 | 5.0 | 5.2 | Vdc |
| Output Voltage (5.0 mA ≤ IO ≤ 1.0 A, PD ≤ 15 W) | VO | 4.75 | 5.0 | 5.25 | Vdc |
| Line Regulation (7.5 Vdc ≤ Vin ≤ 20 Vdc, IO = 1.0 A) | Regline | - | 0.5 | 10 | mV |
| Load Regulation (5.0 mA ≤ IO ≤ 1.0 A) | - | - | 10 | - | mV |
| Output Noise Voltage (10 Hz ≤ f ≤ 100 kHz) | Vn | - | 10 | - | μV/VO |
| Output Resistance (f = 1.0 kHz) | rO | - | 0.9 | - | mΩ |
| Short Circuit Current Limit (TA = 25°C) | ISC | - | 0.2 | - | A |
| Peak Output Current (TJ = 25°C) | Imax | - | 2.2 | - | A |
| Average Temperature Coefficient of Output Voltage | TCVO | - | -0.3 | - | mV/°C |
Key Features
- Stable 5V Output Voltage: The MC7805CD2T provides a regulated 5V output voltage, ensuring consistent power supply to the connected circuitry.
- High Current Capability: It can handle output currents up to 1.0 A, making it suitable for a variety of applications.
- Low Dropout Voltage: The component has a dropout voltage of approximately 2.0 V, which is beneficial for efficient power regulation.
- Thermal Protection: Built-in thermal protection helps prevent the regulator from overheating, enhancing reliability and lifespan.
- Short Circuit Protection: The regulator includes short circuit current limiting to protect against overcurrent conditions.
Applications
The MC7805CD2T is widely used in various electronic systems that require a stable 5V power supply. Some common applications include:
- Embedded Systems: Microcontrollers, single-board computers, and other embedded systems often require a regulated 5V supply.
- Power Supplies: The regulator is used in linear power supplies to provide a stable output voltage.
- Industrial Control Systems: It is used in industrial control systems, automation, and monitoring equipment.
- Consumer Electronics: The MC7805CD2T is found in various consumer electronics such as audio equipment, medical devices, and other appliances.
Q & A
- What is the output voltage of the MC7805CD2T?
The output voltage of the MC7805CD2T is typically 5.0 V, with a range of 4.8 V to 5.2 V at 25°C. - What is the maximum output current of the MC7805CD2T?
The maximum output current is 1.0 A. - What is the dropout voltage of the MC7805CD2T?
The dropout voltage is approximately 2.0 V. - Does the MC7805CD2T have thermal protection?
Yes, the MC7805CD2T includes built-in thermal protection to prevent overheating. - What is the short circuit current limit of the MC7805CD2T?
The short circuit current limit is 0.2 A. - What are the typical applications of the MC7805CD2T?
The MC7805CD2T is used in embedded systems, power supplies, industrial control systems, and consumer electronics. - What is the average temperature coefficient of output voltage for the MC7805CD2T?
The average temperature coefficient of output voltage is -0.3 mV/°C. - How does the MC7805CD2T handle line regulation?
The line regulation is specified as 0.5 mV to 10 mV for input voltages between 7.5 Vdc and 20 Vdc. - What is the output noise voltage of the MC7805CD2T?
The output noise voltage is 10 μV/VO over the frequency range of 10 Hz to 100 kHz. - What is the output resistance of the MC7805CD2T at 1 kHz?
The output resistance is approximately 0.9 mΩ at 1 kHz.
