L7805CD2T

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

The UMW L7805CD2T is a three-terminal positive linear voltage regulator belonging to the L78xx series. It provides a fixed output voltage of 5 V with a maximum output current capability of up to 1.5 A when adequate heat sinking is applied. The device operates within an input voltage range of 7 V to 35 V and is housed in a surface-mount D2PAK (TO-263) package. Internal protection mechanisms include thermal overload shutdown, short-circuit current limiting, and safe operating area (SOA) protection.

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

• Integrated internal current limiting and thermal shut-down for robust operation under fault conditions
• Fixed 5 V output regulation suitable for local on-card power distribution
• Surface-mount D2PAK packaging designed for efficient thermal dissipation

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

• Local on-card voltage regulation in electronic circuits
• Power supply units requiring stable 5 V DC output
• General-purpose linear regulation for embedded systems

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

Verify that the component matches the specific D2PAK (TO-263) surface-mount package configuration rather than through-hole variants. Confirm the manufacturer marking corresponds to UMW specifications. Ensure the part number suffix indicates the correct tape-and-reel or bulk packaging format required for the assembly process. Cross-reference the datasheet revision to confirm pinout compatibility.

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

Select this component when a fixed 5 V output is required with moderate current demands up to 1.5 A. The D2PAK package offers superior thermal performance compared to smaller SOT packages, making it suitable for applications where heat dissipation is a primary design constraint. Verify that the input voltage remains within the specified 7 V to 35 V range to ensure proper regulation and prevent damage.

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

The L7805CD2T is part of the widely used L78xx family of three-terminal positive regulators manufactured by STMicroelectronics and licensed to partners like UMW. This series is characterized by its simplicity, reliability, and built-in safety features. The CD2T designation specifically identifies the surface-mount D2PAK variant, distinguishing it from through-hole TO-220 or TO-3 versions.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Replacement Considerations

Compatible substitutes include the STMicroelectronics L7805CD2T and ON Semiconductor MC7805CD2TG. These parts share identical electrical characteristics and pinouts. Verify that any replacement maintains the same D2PAK footprint and thermal requirements.