Overview
The MC79L05ACPX is a 3-terminal negative voltage regulator produced by Fairchild Semiconductor. This component is part of the MC79L05A series, designed to provide a stable negative output voltage of -5V with a maximum current of 100 mA. It is suitable for a wide range of applications requiring a reliable and compact voltage regulation solution.
Key Specifications
| Parameter | Conditions | Min. | Typ. | Max. | Unit |
|---|---|---|---|---|---|
| Input Voltage (VI) | - | -30 | - | - | V |
| Operating Temperature Range (TOPR) | - | 0 | - | 125 | °C |
| Storage Temperature Range (TSTG) | - | -65 | - | 150 | °C |
| Output Voltage (VO) | TJ = +25°C | -4.8 | -5.0 | -5.2 | V |
| Line Regulation (ΔVO) | -7.0 V ≥ VI ≥ -20 V, TJ = +25°C | 15 | - | 150 | mV |
| Load Regulation (ΔVO) | 1.0 mA ≤ IO ≤ 100 mA, TJ = +25°C | 20 | - | 60 | mV |
| Quiescent Current (IQ) | TJ = +25°C | 2.0 | - | 5.5 | mA |
| Output Noise Voltage (VN) | TA = +25°C, 10 Hz ≤ f ≤ 100 kHz | - | - | 30 | μV |
| Ripple Rejection (RR) | f = 120 Hz, -8 V ≥ VI ≥ -18 V, TJ = +25°C | 41 | - | 60 | dB |
| Dropout Voltage (VD) | TJ = +25°C | - | - | 1.7 | V |
Key Features
- Output current up to 100 mA
- No external components required
- Internal thermal overload protection
- Internal short-circuit current limiting
- Output voltage offered in ±5% tolerance
- Output voltage: -5 V
- Compact packages available (TO-92, SOT-89)
Applications
The MC79L05ACPX is suitable for various applications requiring a stable negative voltage supply, such as:
- Power supplies and voltage regulators
- Audio and video equipment
- Industrial control systems
- Medical devices
- Automotive electronics
Q & A
- What is the output voltage of the MC79L05ACPX?
The output voltage of the MC79L05ACPX is -5 V with a ±5% tolerance.
- What is the maximum output current of the MC79L05ACPX?
The maximum output current is 100 mA.
- Does the MC79L05ACPX require external components for operation?
No, the MC79L05ACPX does not require external components for operation.
- What are the available package types for the MC79L05ACPX?
The component is available in TO-92 and SOT-89 packages.
- What is the operating temperature range of the MC79L05ACPX?
The operating temperature range is from 0°C to +125°C.
- Does the MC79L05ACPX have built-in protection features?
- What is the quiescent current of the MC79L05ACPX at room temperature?
The quiescent current at room temperature (TJ = +25°C) is typically 2.0 mA to 5.5 mA.
- How does the MC79L05ACPX handle ripple rejection?
The ripple rejection at 120 Hz is typically 41 dB to 60 dB.
- What is the dropout voltage of the MC79L05ACPX?
The dropout voltage is typically 1.7 V.
- Is the MC79L05ACPX suitable for high-frequency applications?
