L7805CDT

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Overview

The UMW L7805CDT is a fixed-output positive linear voltage regulator belonging to the L78xx series. It provides a nominal output voltage of 5 V with a maximum output current capability of 1.2 A. The device accepts an input voltage range up to 35 V and operates within a temperature range of -40°C to +105°C. It utilizes a TO-252-3 surface-mount package, integrating internal protections including thermal shutdown and short-circuit limiting for robust operation.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Feature Summary

• Provides local on-board voltage regulation to eliminate single-point regulation issues
• Integrates internal thermal overload protection and short-circuit current limiting
• Ensures safe operating area (SOA) protection for the output transistor

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Applications

• General-purpose power supply regulation
• Local card-level voltage conditioning
• Battery-powered equipment power management

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Procurement Notes

Verify the manufacturer designation explicitly as UMW, as the L7805CDT part number is widely used by multiple semiconductor vendors. Confirm the specific package marking and datasheet revision to ensure compatibility with the intended thermal and electrical requirements. Cross-reference the pinout configuration against the official UMW documentation before integration.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Selection Notes

Select this component when a fixed 5 V output is required from a higher DC bus voltage using a linear topology. The TO-252-3 package is suitable for surface-mount assembly where moderate heat dissipation is available. Ensure the input-to-output differential voltage remains within limits to prevent excessive power dissipation at the rated 1.2 A load current.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Part Context

This component is part of the industry-standard L78xx family of three-terminal positive linear regulators. While originally popularized by STMicroelectronics, UMW manufactures this variant in the TO-252-3 surface-mount package. It serves as a direct functional replacement for through-hole variants like the L7805CT in designs requiring PCB space optimization.