Overview
The MC79L05ABDR2 is a part of the MC79L00A Series of negative voltage regulators produced by onsemi. These regulators are designed to be inexpensive and easy to use, making them suitable for a wide range of applications that require up to 100 mA of current. The MC79L05ABDR2 specifically provides a fixed output voltage of -5.0 V, making it ideal for systems that need a stable negative voltage supply.
Key Specifications
| Parameter | Symbol | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| Input Voltage | VI | -30 | - | -40 | Vdc |
| Output Voltage (TJ = +25°C) | VO | -4.75 | -5.0 | -5.25 | Vdc |
| Power Dissipation (TO-92 Type, TA = 25°C) | PD | Internally Limited | - | 160 | W |
| Thermal Resistance, Junction-to-Ambient (TO-92 Type) | RθJA | - | - | 83 | °C/W |
| Thermal Resistance, Junction-to-Case (TO-92 Type) | RθJC | - | - | 45 | °C/W |
| Storage Temperature Range | Tstg | -65 | - | +150 | °C |
| Junction Temperature | TJ | - | - | +150 | °C |
| Dropout Voltage (IO = 40 mA, TJ = +25°C) | |VI-VO| | - | - | 1.7 | Vdc |
| Ripple Rejection (f = 120 Hz, TJ = +25°C) | RR | 31 | 47 | - | dB |
Key Features
- Fixed Output Voltage: The MC79L05ABDR2 provides a stable output voltage of -5.0 V.
- High Current Capability: Capable of delivering up to 100 mA of current.
- Thermal Overload Protection: Includes thermal overload protection to prevent damage from excessive power overload conditions.
- Internal Short Circuit Protection: Protected against internal short circuits.
- Low Dropout Voltage: Dropout voltage of 1.7 V at 40 mA output current.
- Good Ripple Rejection: High ripple rejection ratio, ensuring a stable output voltage even with varying input voltages.
Applications
The MC79L05ABDR2 is suitable for various applications requiring a stable negative voltage supply, including but not limited to:
- Power Supplies: Used in power supply circuits to provide a negative voltage rail.
- Audio Equipment: Often used in audio equipment to power op-amps and other components requiring negative voltages.
- Industrial Control Systems: Used in industrial control systems where negative voltage supplies are necessary.
- Medical Devices: Can be used in medical devices that require stable negative voltage supplies.
Q & A
- What is the output voltage of the MC79L05ABDR2?
The output voltage of the MC79L05ABDR2 is -5.0 V. - What is the maximum current output of the MC79L05ABDR2?
The maximum current output is 100 mA. - What is the dropout voltage of the MC79L05ABDR2 at 40 mA output current?
The dropout voltage is 1.7 V at 40 mA output current. - Does the MC79L05ABDR2 have thermal overload protection?
Yes, it includes thermal overload protection. - What is the ripple rejection ratio of the MC79L05ABDR2?
The ripple rejection ratio is between 31 dB and 47 dB at 120 Hz. - What are the storage temperature range and junction temperature limits for the MC79L05ABDR2?
The storage temperature range is -65°C to +150°C, and the junction temperature limit is +150°C. - In what package types is the MC79L05ABDR2 available?
The MC79L05ABDR2 is available in SOIC-8 (Pb-Free) packages. - What is the typical input voltage range for the MC79L05ABDR2?
The typical input voltage range is from -30 V to -40 V. - Does the MC79L05ABDR2 require any external components for stability?
Yes, it requires external capacitors (CI and CO) for stability and transient response. - How many units are typically shipped per reel for the MC79L05ABDR2?
2500 units are typically shipped per reel.
