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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 ~ 150°C
- Mounting Type：Surface Mount
- Package / Case：TO-252-3, DPAK (2 Leads + Tab), SC-63
- Supplier Device Package：DPAK
- Grade：-
- Qualification：-
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Overview
The L78M05CDT-TR is a three-terminal positive linear voltage regulator from the STMicroelectronics L78Mxx series. It provides a fixed output voltage of 5 V with a maximum output current capability of 500 mA. The device accepts an input voltage range from 7 V to 35 V and operates within a temperature range of 0 °C to +150 °C. It features a typical static current of 6 mA and offers a power supply rejection ratio (PSRR) of 62 dB at 120 Hz. The component is housed in a DPAK (TO-252) surface-mount package, measuring approximately 6.6 mm in length, 6.2 mm in width, and 2.4 mm in height.
Feature Summary
- Integrated thermal overload protection prevents damage during excessive heat conditions.
- Internal short-circuit protection safeguards the device against output faults.
- Output transition safe operating area (SOA) protection ensures stability under varying load conditions.
Applications
- Local on-card regulation for electronic circuits
- Power management in consumer electronics devices
- Industrial control system power supplies
Procurement Notes
Verify that the ordering suffix matches the required tape and reel packaging configuration. Confirm the specific output voltage tolerance grade corresponds to the design requirements, as variations exist between AC and C versions. Ensure the selected component meets the necessary industrial temperature specifications for the intended application environment.
Selection Notes
Select this component when a compact surface-mount solution is required for 5 V regulation with up to 500 mA load capacity. Consider the thermal performance characteristics inherent to the DPAK package for heat dissipation needs. Evaluate the input voltage headroom relative to the dropout voltage to ensure stable regulation across the full operating range.
Part Context
This part belongs to the L78Mxx family of three-terminal positive regulators produced by STMicroelectronics. The series is designed to eliminate distribution problems associated with single-point regulation by providing local board-level voltage control. It complements other packages in the lineup such as TO-220 and IPAK, offering a suitable form factor for automated surface-mount assembly processes.
Replacement Considerations
Direct substitutes include the L78M05CV for through-hole applications or the L78M05ACDT-TR if tighter output voltage tolerance is required. Verify pinout compatibility and thermal resistance differences when transitioning between package types or tolerance grades.
