Overview
The MC7905ACTG is a fixed output negative linear voltage regulator from onsemi, designed as a complement to the popular MC7800 series devices. This regulator is available in a fixed output voltage of -5.0 V and is part of the MC7900 series, which offers voltage options ranging from -5.0 V to -24 V. The MC7905ACTG is known for its robustness, featuring current limiting, thermal shutdown, and safe-area compensation, making it suitable for a variety of applications requiring reliable negative voltage regulation.
Key Specifications
| Characteristic | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Output Voltage (TJ = +25°C) | -4.9 | -5.0 | -5.1 | Vdc |
| Line Regulation (TJ = +25°C, IO = 100 mA) | -8.0 | -7.0 | 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 | ||
| Ripple Rejection (IO = 20 mA, f = 120 Hz) | 70 | dB | ||
| Average Temperature Coefficient of Output Voltage | -1.0 | mV/°C | ||
| Input Bias Current | 4.4 | 8.0 | mA | |
| Temperature Range | 0°C | 125°C | ||
| Package | TO-220-3 |
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 2% voltage tolerance.
- Pb-free package options available (denoted by the G-suffix).
Applications
The MC7905ACTG is suitable for various applications requiring stable negative voltage regulation, including:
- Industrial control systems.
- Telecommunication equipment.
- Medical devices.
- Consumer electronics.
- MECL (Emitter-Coupled Logic) systems.
Q & A
- What is the output voltage of the MC7905ACTG?
The output voltage of the MC7905ACTG is -5.0 V.
- What is the maximum output current of the MC7905ACTG?
The maximum output current is 1.0 A.
- What are the key protection features of the MC7905ACTG?
The key protection features include internal thermal overload protection and internal short circuit current limiting.
- What is the temperature range for the MC7905ACTG?
The temperature range is from 0°C to +125°C.
- What package types are available for the MC7905ACTG?
The MC7905ACTG is available in the TO-220-3 package.
- Does the MC7905ACTG require external components for operation?
No, the MC7905ACTG does not require external components for operation.
- What is the ripple rejection of the MC7905ACTG?
The ripple rejection is 70 dB at 120 Hz.
- What is the dropout voltage of the MC7905ACTG?
The dropout voltage is 1.3 Vdc at IO = 1.0 A and TJ = +25°C.
- Is the MC7905ACTG available in Pb-free packaging?
- What are some common applications for the MC7905ACTG?
Common applications include industrial control systems, telecommunication equipment, medical devices, consumer electronics, and MECL systems.
