Overview
The MC79M05BTG is a 500 mA Negative Linear Voltage Regulator produced by Onsemi. It is part of the MC79M00 series, designed as a complement to the popular MC78M00 series devices. This regulator is available in a fixed output voltage option of -5.0 V and is known for its robustness under various operating conditions. With adequate heatsinking, it can deliver output currents exceeding 0.5 A.
Key Specifications
| Characteristic | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Output Voltage (TJ = 25°C) | -4.8 | -5.0 | -5.2 | Vdc |
| Line Regulation (TJ = 25°C) | - | - | 7.0 | mV |
| Load Regulation (TJ = 25°C) | - | - | 30 | mV |
| Input Bias Current (TJ = 25°C) | - | 4.3 | 8.0 | mA |
| Output Noise Voltage (TA = 25°C, 10 Hz ≤ f ≤ 100 kHz) | - | - | 40 | μV |
| Ripple Rejection (f = 120 Hz) | 54 | 66 | - | dB |
| Dropout Voltage (IO = 500 mA, TJ = 25°C) | - | - | 1.1 | Vdc |
| Operating Junction Temperature Range | -40°C | - | 125°C | - |
| Package | - | - | TO-220-3 | - |
Key Features
- No External Components Required
- Internal Thermal Overload Protection
- Internal Short Circuit Current Limiting
- Output Transistor Safe-Area Compensation
- Available in Surface Mount DPAK (DT) Package and TO-220 Package
- Pb-Free Packages Available
Applications
The MC79M05BTG is suitable for a variety of applications requiring a stable negative voltage supply. These include:
- Industrial power supplies
- Telecommunication equipment
- Automotive systems
- Consumer electronics requiring negative voltage regulation
Q & A
- What is the output voltage of the MC79M05BTG?
The output voltage of the MC79M05BTG is -5.0 V.
- What is the maximum output current of the MC79M05BTG?
The maximum output current is 500 mA.
- What are the key protection features of the MC79M05BTG?
The key protection features include internal thermal overload protection, internal short circuit current limiting, and output transistor safe-area compensation.
- What are the available package types for the MC79M05BTG?
The MC79M05BTG is available in TO-220-3 and DPAK (DT) packages.
- Is the MC79M05BTG Pb-free?
- What is the operating junction temperature range of the MC79M05BTG?
The operating junction temperature range is -40°C to +125°C.
- What is the ripple rejection of the MC79M05BTG at 120 Hz?
The ripple rejection at 120 Hz is 54 to 66 dB.
- What is the dropout voltage of the MC79M05BTG at 500 mA output current?
The dropout voltage at 500 mA output current is 1.1 Vdc.
- Does the MC79M05BTG require external components for operation?
No, the MC79M05BTG does not require external components for operation.
- What is the typical input bias current of the MC79M05BTG at 25°C?
The typical input bias current at 25°C is 4.3 mA.
