Overview
The MC79M05BT is a 500 mA negative voltage regulator produced by onsemi. This component is part of the MC79M00 series, designed to provide fixed negative output voltages. The MC79M05BT specifically offers a nominal output voltage of -5.0 V, making it a reliable choice for applications requiring stable negative voltage regulation.
This regulator is known for its robust design, featuring internal thermal overload protection, short circuit current limiting, and safe-area compensation. These features ensure the regulator remains operational under various operating conditions, including high temperatures and current demands.
Key Specifications
| Characteristic | Symbol | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| Output Voltage (TJ = 25°C) | VO | -4.8 | -5.0 | -5.2 | Vdc |
| Line Regulation (TJ = 25°C) | Regline | - | - | 7.0 | mV |
| Load Regulation (TJ = 25°C) | Regload | - | 30 | 100 | mV |
| Input Bias Current (TJ = 25°C) | IIB | - | 4.3 | 8.0 | mA |
| Output Noise Voltage (TA = 25°C, 10 Hz ≤ f ≤ 100 kHz) | Vn | - | 40 | - | μV |
| Ripple Rejection (f = 120 Hz) | RR | 54 | 66 | - | dB |
| Dropout Voltage (IO = 500 mA, TJ = 25°C) | VI-VO | - | 1.1 | - | Vdc |
| Average Temperature Coefficient of Output Voltage | ΔVO/ΔT | - | 0.2 | - | mV/°C |
| Operating Junction Temperature Range | TJ | -40 | - | 125 | °C |
| Storage Junction Temperature | Tstg | -65 | - | 150 | °C |
| Thermal Resistance, Junction-to-Ambient (TO-220) | θJA | - | 65 | - | °C/W |
| Thermal Resistance, Junction-to-Case (TO-220) | θJC | - | 5.0 | - | °C/W |
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 surface mount DPAK (DT) package and through-hole TO-220 package.
- Pb-free packages available, compliant with environmental regulations.
- ESD protection exceeding Human Body Model 2000 V per MIL-STD-883, Method 3015 and Machine Model 200 V.
Applications
The MC79M05BT is suitable for a variety of applications requiring stable negative voltage regulation, including:
- Power supplies and voltage regulators in electronic equipment.
- Audio and video equipment where negative voltage is necessary.
- Industrial control systems and automation.
- Medical devices and equipment requiring precise voltage regulation.
- Telecommunication systems and networking equipment.
Q & A
- What is the nominal output voltage of the MC79M05BT?
The nominal output voltage of the MC79M05BT is -5.0 V.
- What are the key protection features of the MC79M05BT?
The MC79M05BT features internal thermal overload protection, short circuit current limiting, and safe-area compensation.
- What are the available package options for the MC79M05BT?
The MC79M05BT is available in both surface mount DPAK (DT) and through-hole TO-220 packages.
- Is the MC79M05BT Pb-free?
- What is the maximum output current of the MC79M05BT?
The MC79M05BT can deliver up to 500 mA of output current.
- What is the operating junction temperature range of the MC79M05BT?
The operating junction temperature range is from -40°C to 125°C.
- Does the MC79M05BT require any external components for operation?
No, the MC79M05BT does not require any external components for operation.
- What is the ripple rejection of the MC79M05BT at 120 Hz?
The ripple rejection of the MC79M05BT at 120 Hz is typically 66 dB.
- What is the dropout voltage of the MC79M05BT at 500 mA output current?
The dropout voltage of the MC79M05BT at 500 mA output current is typically 1.1 V.
- Does the MC79M05BT have ESD protection?
