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Product Detailed Parameters
- Description：IC REG LINEAR 12V 1.5A TO220FP
- 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)：8 mA
- Current - Supply (Max)：-
- PSRR：55dB (120Hz)
- Control Features：-
- Protection Features：Over Temperature, Short Circuit
- Operating Temperature：0°C ~ 125°C
- Mounting Type：Through Hole
- Package / Case：TO-220-3 Full Pack
- Supplier Device Package：TO-220FP
- Grade：-
- Qualification：-
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Overview
The L7812CP is a three-terminal positive linear voltage regulator from the STMicroelectronics L78 series, housed in a TO-220 package. It provides a fixed output voltage of 12 V with a maximum output current capability of 1.5 A. The device supports an input voltage range up to 35 V and operates within a temperature range of 0 °C to 125 °C. Key electrical characteristics include a typical line regulation of 120 mV and load regulation of 100 mV.
Feature Summary
- Integrates internal thermal overload protection and short-circuit protection for robust operation.
- Includes safe area protection to prevent damage during output transitions.
- Provides local on-card regulation to eliminate distribution problems associated with single-point regulation.
Applications
- General-purpose power supply circuits requiring stable positive voltage rails.
- Local regulation on printed circuit boards to improve power distribution reliability.
- Battery chargers and other equipment requiring fixed voltage regulation.
Procurement Notes
Verify the specific suffix 'CP' against official STMicroelectronics documentation to confirm exact pinout and thermal specifications. Ensure the selected component matches the required operating temperature range and output current ratings for the target application design.
Selection Notes
Select this component when a fixed 12 V output is required with moderate current demands up to 1.5 A. Consider the thermal dissipation requirements based on the input-output voltage differential and ensure adequate heat sinking is provided to maintain performance within the specified junction temperature limits.
Part Context
This component belongs to the L78 series of three-terminal positive regulators manufactured by STMicroelectronics. The series is designed for wide-ranging applications due to its internal protection features and availability in multiple fixed output voltages and packages such as TO-220 and D²PAK.
Replacement Considerations
Compatible replacements include the L7812CV and L7812ACV from STMicroelectronics, which share similar functional characteristics and pinouts within the L78 family.
