Overview
The L78M08ACDT is a precision 500 mA linear voltage regulator produced by STMicroelectronics. This three-terminal positive regulator is available in the DPAK package and is designed to provide a fixed output voltage of 8V. It is part of the L78M series, which is known for its reliability and versatility in various applications. The regulator offers local on-card regulation, eliminating the issues associated with single-point regulation, and is equipped with internal current limiting, thermal shutdown, and safe area protection, making it essentially indestructible.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Output Voltage (Fixed) | 8 | V |
| Output Current | 500 | mA |
| Input Voltage (Max) | 35 | V |
| Quiescent Current (Iq) | 6 | mA |
| Operating Temperature | 0°C to 125°C | °C |
| Package/Case | DPAK (TO-252-3) | |
| Protection Features | Over Current, Over Temperature, Short Circuit | |
| PSRR (Power Supply Rejection Ratio) | 56 dB (120 Hz) | |
| Mounting Type | Surface Mount | |
| Moisture Sensitivity Level (MSL) | 3 (168 Hours) |
Key Features
- Output current up to 0.5 A
- Fixed output voltage of 8V with ±2% tolerance
- Thermal overload protection and short circuit protection
- Output transition SOA (Safe Operating Area) protection
- Guaranteed operation in an extended temperature range (0°C to 125°C)
- Internal current limiting and safe area protection
- High PSRR (Power Supply Rejection Ratio) of 56 dB at 120 Hz
Applications
The L78M08ACDT is suitable for a wide range of applications where stable and regulated voltage is required. These include:
- Industrial control systems
- Consumer electronics
- Automotive systems
- Medical devices
- Telecommunication equipment
- Local on-card regulation in complex electronic systems
Q & A
- What is the output voltage of the L78M08ACDT?
The output voltage of the L78M08ACDT is 8V with a ±2% tolerance.
- What is the maximum output current of the L78M08ACDT?
The maximum output current is 500 mA.
- What are the protection features of the L78M08ACDT?
The regulator includes over current, over temperature, and short circuit protection.
- What is the operating temperature range of the L78M08ACDT?
The operating temperature range is from 0°C to 125°C.
- What package types are available for the L78M08ACDT?
The L78M08ACDT is available in the DPAK (TO-252-3) package.
- Is the L78M08ACDT RoHS compliant?
- What is the PSRR of the L78M08ACDT?
The PSRR (Power Supply Rejection Ratio) is 56 dB at 120 Hz.
- What is the quiescent current of the L78M08ACDT?
The quiescent current is 6 mA.
- Can the L78M08ACDT be used for adjustable voltage regulation?
Although designed primarily as a fixed voltage regulator, it can be used with external components to obtain adjustable voltage and currents.
- What is the moisture sensitivity level (MSL) of the L78M08ACDT?
The MSL is 3 (168 Hours).
