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Product Detailed Parameters
- Description：IC REG LINEAR 5V 500MA DPAK
- Series：-
- Mfr：STMicroelectronics
- Package：Tape & Reel (TR),Cut Tape (CT)
- Output Configuration：Positive
- Output Type：Fixed
- Number of Regulators：1
- Voltage - Input (Max)：35V
- Voltage - Output (Min/Fixed)：5V
- Voltage - Output (Max)：-
- Voltage Dropout (Max)：-
- Current - Output：500mA
- Current - Quiescent (Iq)：6 mA
- Current - Supply (Max)：-
- PSRR：62dB (120Hz)
- Control Features：-
- Protection Features：Over Current, Over Temperature, Short Circuit
- Operating Temperature：0°C ~ 125°C
- Mounting Type：Surface Mount
- Package / Case：TO-252-3, DPAK (2 Leads + Tab), SC-63
- Supplier Device Package：DPAK
- Grade：-
- Qualification：-
Download product information
Overview
The L78M05ACDT-TR is a three-terminal positive linear voltage regulator from the L78MxxA series by STMicroelectronics. It provides a fixed output voltage of 5 V with an output current capability up to 0.5 A. The device features ±2% output voltage tolerance and operates within a junction temperature range of 0 °C to 125 °C. It utilizes DPAK surface-mount packaging and includes internal thermal overload protection, short-circuit protection, and output transition SOA protection.
Feature Summary
- Provides local on-card regulation eliminating distribution problems associated with single point regulation
- Features internal current limiting, thermal shutdown, and safe area protection for robust operation
- Delivers fixed output voltages with high precision tolerance
Applications
- Local on-card voltage regulation in electronic circuits
- Power supplies requiring stable fixed voltage outputs
- Applications utilizing external components for adjustable voltage or current configurations
Procurement Notes
Verify the specific suffix 'AC' indicates the required ±2% output voltage tolerance and the 0 °C to 125 °C operating temperature range. Confirm the 'DT' designation corresponds to the DPAK package type. Ensure the '-TR' suffix matches the required tape and reel packaging format for automated assembly processes.
Selection Notes
Select this component when a fixed 5 V output with 0.5 A current capacity is required in a surface-mount form factor. The AC version offers tighter voltage tolerance compared to standard variants. Consider the thermal resistance characteristics of the DPAK package for heat dissipation requirements in the target application environment.
Part Context
This part belongs to the L78MxxA series of precision regulators available in TO-220 and DPAK packages. The series is designed for applications needing reliable fixed voltage regulation with built-in protection mechanisms against overloads and short circuits, suitable for various industrial and commercial electronics.
Replacement Considerations
L78M05ABDT-TR (offers -40 to 125 °C range)
FAQ
What is the output voltage tolerance for the L78M05AC variant?
The L78M05AC variant has an output voltage tolerance of ±2%.
Does the L78M05ACDT-TR require external compensation capacitors?
In many low current applications, compensation capacitors are not required, but an input bypass capacitor is recommended if connected via long wire lengths or with large output load capacitance.
