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Product Detailed Parameters
- Description：IC REG LINEAR 5V 500MA
- Series：-
- Mfr：onsemi
- Package：Tape & Reel (TR),Cut Tape (CT),Bulk
- Output Configuration：Positive
- Output Type：Fixed
- Number of Regulators：1
- Voltage - Input (Max)：20V
- Voltage - Output (Min/Fixed)：5V
- Voltage - Output (Max)：-
- Voltage Dropout (Max)：2V @ 350mA (Typ)
- Current - Output：500mA
- Current - Quiescent (Iq)：-
- Current - Supply (Max)：-
- PSRR：80dB (120Hz)
- Control Features：-
- Protection Features：Over Current, Over Temperature
- Operating Temperature：-20°C ~ 80°C
- Mounting Type：-
- Package / Case：-
- Supplier Device Package：-
- Grade：-
- Qualification：-
Download product information
Overview
The L78M05TL-TL-E is a three-terminal positive linear voltage regulator manufactured by onsemi. It provides a fixed output voltage of 5 V with a maximum output current capability of 500 mA. The device belongs to the MC78M00A series, which offers half the output current of the standard MC7800A series while maintaining identical functionality for local on-card voltage regulation. It features internal thermal overload protection and short-circuit current limiting to ensure robust operation under fault conditions.
Feature Summary
- Provides stable fixed positive voltage regulation
- Includes internal thermal overload protection
- Features short-circuit current limiting
Applications
- Local on-card voltage regulation
- Positive power supply circuits
- General-purpose linear regulation
Procurement Notes
Verify the exact part number against official manufacturer documentation as suffixes may indicate specific package or tape-and-reel configurations that do not alter electrical function. Confirm availability status directly with authorized distributors, as this component may be subject to discontinuation or limited stock. Ensure compliance with RoHS and REACH requirements relevant to your region before procurement.
Selection Notes
Select this component when a fixed 5 V output at up to 500 mA is required in a compact form factor. It serves as a direct functional equivalent to other MC78M00A series regulators from various manufacturers. Consider the thermal dissipation capabilities of the chosen package relative to the input-output voltage differential and load current to ensure operation within safe junction temperature limits.
Part Context
This regulator is part of the broader MC78M00A family of medium-current positive voltage regulators. These devices are designed as drop-in replacements for legacy MC7800A series parts but are rated for lower continuous output currents. The family is widely used in industrial and consumer electronics where reliable, low-noise linear regulation is preferred over switching topologies for sensitive analog loads.
Replacement Considerations
Direct substitutes include MC78M05CDT, MC78M05ACTG, and TS78M05A. Verify pinout compatibility and package dimensions (typically TO-252 or similar SMD) before substitution. Ensure replacement parts meet the same 500 mA current rating and 5 V output specification.
