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Product Detailed Parameters
- Description：IC REG LINEAR 12V 1.5A D2PAK
- Series：-
- Mfr：STMicroelectronics
- Package：Tube
- Output Configuration：Positive
- Output Type：Fixed
- Number of Regulators：1
- Voltage - Input (Max)：35V
- Voltage - Output (Min/Fixed)：12V
- Voltage - Output (Max)：-
- Voltage Dropout (Max)：2V @ 1A (Typ)
- Current - Output：1.5A
- Current - Quiescent (Iq)：6 mA
- Current - Supply (Max)：-
- PSRR：60dB (120Hz)
- Control Features：-
- Protection Features：Over Temperature, Short Circuit
- Operating Temperature：-40°C ~ 125°C
- Mounting Type：Surface Mount
- Package / Case：TO-263-3, D2PAK (2 Leads + Tab), TO-263AB
- Supplier Device Package：D2PAK
- Grade：-
- Qualification：-
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Overview
The L7812ABD2T is a fixed positive linear voltage regulator from the STMicroelectronics L78xx series, designed for general-purpose applications. It provides a stable 12V output with a maximum continuous load current of 1.5A. The device features internal protections including thermal overload shutdown and safe area protection. It operates within an input voltage range up to 35V and is housed in a D2PAK surface-mount package.
Feature Summary
- Fixed 12V output voltage regulation
- Internal thermal overload protection
- Safe area protection against short circuits
- Output transistor safe operating area protection
Applications
- General-purpose power supplies
- On-line control systems
- Battery chargers
Procurement Notes
Verify the exact suffix 'TR' or absence thereof against the manufacturer's official datasheet to confirm tape-and-reel packaging status. Ensure the component matches the specific L7812AB variant specifications regarding dropout voltage and thermal resistance characteristics defined in the original documentation.
Selection Notes
Select this component when a robust, low-cost solution for 12V regulation at currents up to 1.5A is required. Consider the D2PAK package for adequate heat dissipation without external heatsinks in moderate load conditions. Verify input voltage stability remains within the 35V absolute maximum rating under all transient conditions.
Part Context
This part belongs to the widely used L78xx family of three-terminal linear regulators. These devices are known for their simplicity, requiring minimal external components. The L7812ABD2T specifically denotes the 12V output version in a surface-mount D2PAK format, offering a compact alternative to traditional TO-220 packages for space-constrained designs.
Replacement Considerations
Compatible substitutes include other manufacturers' 7812 variants in D2PAK packages, such as those from ON Semiconductor or Texas Instruments, provided pinouts and electrical characteristics match. Cross-reference thermal performance and pin configuration before substitution.
