Overview
The UA78L05ACPK is a fixed-voltage linear regulator from Texas Instruments, part of the UA78L series. This component is designed to provide stable voltage regulation in a variety of applications. It is known for its robust features, including built-in short-circuit current limiting and thermal protection, making it a reliable choice for on-card regulation and high-current voltage regulator configurations.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Input Voltage Range (VI) | 4.75 V to 35 V | V |
| Output Voltage (VO) | 5 V (fixed) | V |
| Output Current | Up to 100 mA | mA |
| Quiescent Current (IQ) | 3.8 mA (typical) | mA |
| Dropout Voltage | 1.7 V (at TJ = 25°C) | V |
| Operating Temperature Range | –40°C to +125°C | °C |
| Package Type | SOT-89-3 | - |
Key Features
- Input voltage range: 4.75 V to 35 V
- Fixed output voltage: 5 V
- Output current up to 100 mA
- Quiescent current: 3.8 mA (typical)
- Built-in short-circuit current limiting and thermal protection
- Stable operation without external components
- Operating temperature range: –40°C to +125°C
- Available in SOT-89-3 package
Applications
The UA78L05ACPK is suitable for a wide range of applications, including:
- On-card voltage regulation to eliminate noise and distribution problems
- High-current voltage regulators when used with power-pass elements
- General-purpose voltage regulation in electronic devices
- Industrial, automotive, and consumer electronics where stable voltage is required
Q & A
- What is the input voltage range of the UA78L05ACPK?
The input voltage range is 4.75 V to 35 V.
- What is the fixed output voltage of the UA78L05ACPK?
The fixed output voltage is 5 V.
- What is the maximum output current of the UA78L05ACPK?
The maximum output current is up to 100 mA.
- Does the UA78L05ACPK require external components for stable operation?
No, it is stable without any external components.
- What are the built-in protection features of the UA78L05ACPK?
It has built-in short-circuit current limiting and thermal protection.
- What is the operating temperature range of the UA78L05ACPK?
The operating temperature range is –40°C to +125°C.
- In what package type is the UA78L05ACPK available?
It is available in the SOT-89-3 package.
- What is the typical quiescent current of the UA78L05ACPK?
The typical quiescent current is 3.8 mA.
- What is the dropout voltage of the UA78L05ACPK at 25°C?
The dropout voltage is 1.7 V at 25°C.
- Can the UA78L05ACPK be used for high-current voltage regulation?
