Overview
The L78M05ACDT-TR is a three-terminal positive linear voltage regulator produced by STMicroelectronics. It is part of the L78M series, which offers fixed output voltages ranging from 5V to 24V. This regulator is available in various packages, including TO-220, TO-220FP, DPAK, and IPAK, making it versatile for a wide range of applications. The L78M05ACDT-TR specifically provides a fixed output voltage of 5V and can deliver up to 500mA of output current.
Key Specifications
| Parameter | Min. | Max. | Unit | |
|---|---|---|---|---|
| Output Voltage (VO) | 4.8 | 5 | 5.2 | V |
| Output Current (IO) | - | - | 500 | mA |
| Input Voltage (VI) for VO = 5V | - | - | 35 | V |
| Line Regulation | - | - | 100 mV | - |
| Load Regulation | - | - | 120 mV | - |
| Quiescent Current | - | 6 | - | mA |
| Dropout Voltage | - | - | 2 | V |
| Thermal Resistance Junction-Case (RthJC) | - | - | 5 | °C/W |
| Thermal Resistance Junction-Ambient (RthJA) | - | - | 50 | °C/W |
| Operating Junction Temperature Range | 0 | - | 125 | °C |
Key Features
- Fixed Output Voltage: The L78M05ACDT-TR provides a fixed output voltage of 5V.
- High Output Current: Capable of delivering up to 500mA of output current.
- Thermal Overload Protection: Internal thermal shutdown to prevent overheating.
- Short Circuit Protection: Internal current limiting and short circuit protection.
- Output Transition SOA Protection: Safe area protection for output transitions.
- Low Dropout Voltage: Dropout voltage of 2V.
- High Accuracy: Output voltage tolerance of 2% (AB and AC versions) or 4% (C version).
- Versatile Packaging: Available in TO-220, TO-220FP, DPAK, and IPAK packages.
Applications
The L78M05ACDT-TR is suitable for a wide range of applications, including:
- Local On-Card Regulation: Eliminates distribution problems associated with single point regulation.
- Industrial Control Systems: Reliable voltage regulation in industrial environments.
- Consumer Electronics: Used in various consumer electronic devices requiring stable voltage supply.
- Automotive Systems: Suitable for automotive applications due to its robust protection features.
- Medical Devices: Provides stable voltage in medical equipment where reliability is crucial.
Q & A
- What is the output voltage of the L78M05ACDT-TR?
The output voltage of the L78M05ACDT-TR is 5V.
- What is the maximum output current of the L78M05ACDT-TR?
The maximum output current is 500mA.
- What types of protection does the L78M05ACDT-TR have?
It has thermal overload protection, short circuit protection, and output transition SOA protection.
- What is the dropout voltage of the L78M05ACDT-TR?
The dropout voltage is 2V.
- What is the output voltage tolerance of the L78M05ACDT-TR?
The output voltage tolerance is 2% for AB and AC versions or 4% for the C version.
- In what packages is the L78M05ACDT-TR available?
It is available in TO-220, TO-220FP, DPAK, and IPAK packages.
- What is the operating junction temperature range for the L78M05ACDT-TR?
The operating junction temperature range is from 0°C to 125°C.
- Does the L78M05ACDT-TR have quiescent current regulation?
Yes, it has a quiescent current of 6mA.
- Can the L78M05ACDT-TR be used in automotive applications?
Yes, it is suitable for automotive applications due to its robust protection features.
- What is the thermal resistance junction-case (RthJC) of the L78M05ACDT-TR?
The thermal resistance junction-case (RthJC) is 5°C/W.
