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Product Detailed Parameters
- Description：IC REG LINEAR 8V 3A TO220
- Series：-
- Mfr：STMicroelectronics
- Package：Tube
- Output Configuration：Positive
- Output Type：Fixed
- Number of Regulators：1
- Voltage - Input (Max)：14V
- Voltage - Output (Min/Fixed)：8V
- Voltage - Output (Max)：-
- Voltage Dropout (Max)：0.7V @ 3A
- Current - Output：3A
- Current - Quiescent (Iq)：50 mA
- Current - Supply (Max)：100 mA
- PSRR：59dB (120Hz)
- Control Features：-
- Protection Features：Over Current, Over Temperature
- Operating Temperature：-40°C ~ 125°C
- Mounting Type：Through Hole
- Package / Case：TO-220-3
- Supplier Device Package：TO-220
- Grade：-
- Qualification：-
Download product information
Overview
The LD29300V80 is a fixed-output low-dropout voltage regulator providing an 8.0 V nominal output with ±1% tolerance at 25°C. It guarantees up to 3 A output current and features a typical dropout voltage of 0.4 V at full load. The device includes internal current limiting, thermal shutdown, and logic-controlled electronic shutdown. Operating junction temperature ranges from -40°C to 125°C, with a maximum input voltage of 30 V.
Feature Summary
- Fixed 8.0 V output with high accuracy
- Logic-controlled electronic shutdown
- Internal current and thermal protection
Applications
- Power supply switching post regulation
- Series power supply for monitors
- Computer systems
- Battery-powered systems
Procurement Notes
Verify the specific package suffix (e.g., D2PAK, P2PAK) required for your design, as the base model number does not specify the physical footprint. Confirm that the ordering code matches the desired thermal performance and mounting style. Ensure the selected variant supports the necessary inhibit function if system-level power management is required.
Selection Notes
Select this component when a stable 8.0 V rail is needed for loads up to 3 A. Consider the thermal resistance of the chosen package for heat dissipation. Verify input voltage stability within the 9 V to 13 V operating range to maintain optimal line regulation and dropout performance under varying load conditions.
Part Context
This part belongs to the LD29300 series of high-current, very low dropout regulators manufactured by STMicroelectronics. The series offers multiple fixed voltage options and adjustable variants across various surface-mount and through-hole packages designed for robust power management in consumer and industrial electronics.
Replacement Considerations
LD29300D2T80
FAQ
What is the minimum operating input voltage for the LD29300V80?
The minimum operating input voltage is 9 V.
Does the LD29300V80 support electronic shutdown?
Yes, it features a logic-controlled electronic shutdown function.
