Overview
The MC7809CT is a linear voltage regulator IC produced by Onsemi, designed to provide a stable and fixed output voltage of 9.0V. This regulator is part of the 78XX series, known for its reliability and wide range of applications. The MC7809CT is packaged in a TO-220-3 case, making it suitable for various industrial, commercial, and consumer electronics devices. It is characterized by its high power supply rejection ratio, low dropout voltage, and robust protection features, including overtemperature and short-circuit protection.
Key Specifications
| Parameter | Value | Parameter | Value |
|---|---|---|---|
| Output Configuration | Positive | Number of Regulators | 1 |
| Output Type | Fixed | Voltage - Input (Max) | 30V |
| Voltage - Output (Min/Fixed) | 9V | Voltage Dropout (Max) | 2V @ 1A (Typ) |
| Current - Output | 1A | Current - Quiescent (Iq) | 8 mA |
| PSRR | 72dB (120Hz) | Protection Features | Over Temperature, Short Circuit |
| Operating Temperature | 0°C ~ 125°C | Mounting Type | Through Hole |
Key Features
- Linear voltage regulator with a fixed output voltage of 9V.
- Output current up to 1A.
- Input voltage range up to 30V.
- Low dropout voltage (2V @ 1A typ).
- High power supply rejection ratio (72dB @ 120Hz).
- Protection features include overtemperature and short-circuit protection.
Applications
- Industrial control systems.
- Commercial and consumer electronics devices.
- Automotive and IoT applications.
- Medical equipment and instrumentation.
- Data processing and communication systems.
Q & A
- Q: What is the output voltage of the MC7809CT?
A: The output voltage of the MC7809CT is 9.0V. - Q: What is the maximum input voltage for the MC7809CT?
A: The maximum input voltage for the MC7809CT is 30V. - Q: What is the maximum output current of the MC7809CT?
A: The maximum output current of the MC7809CT is 1A. - Q: What are the protection features of the MC7809CT?
A: The MC7809CT includes protection features such as overtemperature and short-circuit protection. - Q: What is the operating temperature range of the MC7809CT?
A: The operating temperature range of the MC7809CT is 0°C to 125°C. - Q: What is the package type of the MC7809CT?
A: The MC7809CT is packaged in a TO-220-3 case. - Q: What is the quiescent current of the MC7809CT at full load?
A: The quiescent current of the MC7809CT at full load is 8 mA. - Q: What is the power supply rejection ratio (PSRR) of the MC7809CT?
A: The PSRR of the MC7809CT is 72dB at 120Hz. - Q: How do I ensure proper heat dissipation for the MC7809CT?
A: Proper heat dissipation can be ensured by using a suitable heat sink and ensuring good PCB layout. - Q: Where can I find detailed information about the MC7809CT?
A: Detailed information about the MC7809CT can be found in the datasheet available on Onsemi's official website or through authorized distributors.
