Overview
The MC79L05ACLPR is a fixed negative-voltage integrated-circuit voltage regulator produced by Texas Instruments. This component is part of the MC79L00 series, designed to provide a stable negative output voltage with minimal external components. It is suitable for a wide range of applications, including on-card regulation to eliminate noise and distribution problems associated with single-point regulation, and controlling series pass elements in high-current voltage-regulator circuits.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Nominal Output Voltage | -5 | V |
| Output Current | Up to 100 | mA |
| Input Voltage Range | -7 to -20 | V |
| Operating Junction Temperature | 0 to 125 | °C |
| Dropout Voltage | 1.7 | V |
| Bias Current | 6 (at 25°C), 5.5 (at 125°C) | mA |
| Input Regulation | 200 mV (VI = -7 V to -20 V) | mV |
| Ripple Rejection | 40 dB (VI = -8 V to -18 V, f = 120 Hz) | dB |
| Output Noise Voltage | 40 µV (f = 10 Hz to 100 kHz) | µV |
| Package Type | TO-92-3 |
Key Features
- No external components required for operation.
- Internal thermal-overload protection and short-circuit current limiting.
- High ripple rejection and low output noise voltage.
- Direct replacement for industry-standard MC79L00 series.
- Available in 5% or 10% voltage tolerance selections.
- Immune to overload due to internal current-limiting and thermal-shutdown features.
Applications
- On-card regulation to eliminate noise and distribution problems associated with single-point regulation.
- Controlling series pass elements in high-current voltage-regulator circuits.
- Replacement for Zener-diode and resistor combinations to improve output impedance.
- General-purpose negative voltage regulation in various electronic systems.
Q & A
- What is the nominal output voltage of the MC79L05ACLPR?
The nominal output voltage is -5V.
- What is the maximum output current of the MC79L05ACLPR?
The maximum output current is up to 100 mA.
- What is the input voltage range for the MC79L05ACLPR?
The input voltage range is from -7 V to -20 V.
- What is the operating junction temperature range for the MC79L05ACLPR?
The operating junction temperature range is from 0°C to 125°C.
- Does the MC79L05ACLPR require external components for operation?
No, the MC79L05ACLPR does not require external components for operation.
- What kind of protection does the MC79L05ACLPR have against thermal and short-circuit conditions?
The MC79L05ACLPR has internal thermal-overload protection and short-circuit current limiting.
- What is the ripple rejection of the MC79L05ACLPR?
The ripple rejection is 40 dB at frequencies from -8 V to -18 V and 120 Hz.
- What is the output noise voltage of the MC79L05ACLPR?
The output noise voltage is 40 µV over the frequency range of 10 Hz to 100 kHz.
- In what package type is the MC79L05ACLPR available?
The MC79L05ACLPR is available in the TO-92-3 package type.
- Can the MC79L05ACLPR be used as a replacement for Zener-diode and resistor combinations?
