Overview
The MC7905CTG is a fixed output negative linear voltage regulator from onsemi, designed as a complement to the popular MC7800 series devices. This regulator is part of the MC7900 series, which offers fixed output voltage options ranging from -5.0 V to -24 V. The MC7905CTG specifically provides a -5 V output voltage. It is known for its robustness, featuring internal thermal overload protection, short circuit current limiting, and safe-area compensation, making it suitable for a variety of applications requiring reliable negative voltage regulation.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Output Voltage (TJ = +25°C) | -4.9 to -5.1 | Vdc |
| Output Current | 1.0 | A |
| Line Regulation (TJ = +25°C, IO = 100 mA) | -8.0 Vdc ≥ VI ≥ -12 Vdc | |
| Dropout Voltage (IO = 1.0 A, TJ = +25°C) | 1.3 | Vdc |
| Output Noise Voltage (TA = +25°C, 10 Hz ≤ f ≤ 100 kHz) | 40 | µV rms |
| Ripple Rejection (IO = 500 mA, f = 120 Hz) | 70 | dB |
| Temperature Range | 0°C to +125°C | |
| Package | TO-220-3 | |
| Voltage Tolerance | 2% |
Key Features
- No external components required for operation.
- Internal thermal overload protection to prevent overheating.
- Internal short circuit current limiting to protect against overcurrent conditions.
- Output transistor safe-area compensation for enhanced reliability.
- Available in Pb-free package options (denoted by the G-suffix).
- High current capability, delivering up to 1.0 A with adequate heatsinking.
Applications
The MC7905CTG is suitable for various applications requiring stable negative voltage regulation, including:
- Industrial control systems.
- Telecommunication equipment.
- Medical devices.
- Aerospace and defense systems.
- Any system requiring a reliable negative voltage supply.
Q & A
- What is the output voltage of the MC7905CTG?
The output voltage of the MC7905CTG is -5 V.
- What is the maximum output current of the MC7905CTG?
The MC7905CTG can deliver up to 1.0 A of output current with adequate heatsinking.
- What are the key protection features of the MC7905CTG?
The MC7905CTG features internal thermal overload protection and short circuit current limiting.
- What is the temperature range for the MC7905CTG?
The operating temperature range for the MC7905CTG is 0°C to +125°C.
- What package types are available for the MC7905CTG?
The MC7905CTG is available in the TO-220-3 package.
- Does the MC7905CTG require external components for operation?
No, the MC7905CTG does not require external components for operation.
- What is the voltage tolerance of the MC7905CTG?
The voltage tolerance of the MC7905CTG is 2%.
- Is the MC7905CTG available in Pb-free packaging?
- What are some common applications for the MC7905CTG?
The MC7905CTG is commonly used in industrial control systems, telecommunication equipment, medical devices, and aerospace and defense systems.
- How does the MC7905CTG handle ripple rejection?
The MC7905CTG has a ripple rejection of 70 dB at 120 Hz.
