Overview
The MC79L05ACDRG4 is a fixed negative-voltage integrated-circuit voltage regulator produced by Texas Instruments. This component is part of the MC79L00 series, designed for a wide range of applications including on-card regulation to eliminate noise and distribution problems associated with single-point regulation. It can also be used to control series pass elements in high-current voltage-regulator circuits.
The MC79L05ACDRG4 is known for its simplicity and reliability, requiring no external components for operation. It features internal thermal-overload protection and short-circuit current limiting, making it immune to overload conditions.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Output Voltage | -4.8 | -5 | -5.2 | V |
| Input Voltage | -7 | -10 | -20 | V |
| Output Current | 1 | 40 | 100 | mA |
| Operating Junction Temperature | 0 | - | 125 | °C |
| Input Regulation | 150 | 100 | 200 | mV |
| Ripple Rejection | 40 | 49 | 49 | dB |
| Output Regulation | 30 | 60 | 60 | mV |
| Dropout Voltage | 1.7 | 1.7 | 1.7 | V |
| Bias Current | 5.5 | 6 | 6 | mA |
Key Features
- No external components required for operation.
- Internal thermal-overload protection and short-circuit current limiting.
- Direct replacement for industry-standard MC79L00 series.
- Available in 5% or 10% voltage tolerance selections.
- High ripple rejection and low output noise voltage.
- Low dropout voltage and stable output voltage over a wide range of input voltages.
Applications
- On-card regulation to eliminate noise and distribution problems associated with single-point regulation.
- Control of series pass elements in high-current voltage-regulator circuits.
- Replacement for Zener-diode and resistor combinations to improve output impedance and reduce bias current.
- Use in various electronic devices requiring stable negative voltage regulation.
Q & A
- What is the MC79L05ACDRG4 used for?
The MC79L05ACDRG4 is used for providing stable negative voltage regulation in various electronic applications.
- What are the key features of the MC79L05ACDRG4?
Key features include internal thermal-overload protection, short-circuit current limiting, no external components required, and high ripple rejection.
- What is the output voltage of the MC79L05ACDRG4?
The output voltage is typically -5V, with a tolerance range of -4.8V to -5.2V.
- What is the maximum output current of the MC79L05ACDRG4?
The maximum output current is 100 mA.
- What is the operating junction temperature range of the MC79L05ACDRG4?
The operating junction temperature range is from 0°C to 125°C.
- Does the MC79L05ACDRG4 require external components for operation?
No, the MC79L05ACDRG4 does not require external components for operation.
- What is the dropout voltage of the MC79L05ACDRG4?
The dropout voltage is typically 1.7V.
- What is the ripple rejection of the MC79L05ACDRG4?
The ripple rejection is typically 49 dB.
- Can the MC79L05ACDRG4 replace a Zener-diode and resistor combination?
- What are the common applications of the MC79L05ACDRG4?
