LM78M05CDTX

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

The LM78M05CDTX is a fixed positive linear voltage regulator from the Texas Instruments LM78M series. It provides a stable 5 V output with a maximum continuous current of 500 mA. The device operates within an input voltage range of 7 V to 35 V and features internal thermal overload protection and short-circuit current limiting. It is housed in a surface-mount TO-252 (DPAK) package, suitable for PCB mounting. The component supports an operating temperature range from -40 °C to +125 °C and maintains a typical quiescent current of 4 mA.

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

• Integrated thermal overload protection safeguards against excessive heat generation during operation.
• Internal short-circuit current limiting protects the device and circuitry from fault conditions.
• Fixed 5 V output ensures consistent voltage regulation without external feedback components.

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

• General-purpose power supply regulation
• Local on-card voltage regulation
• Positive regulated power supplies

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

Verify the complete part number including the suffix 'CDTX' to ensure correct packaging and tape-and-reel configuration. Confirm RoHS compliance status as indicated by the NOPB designation if applicable. Check datasheet revisions for any updates to electrical characteristics or recommended application circuits before finalizing procurement specifications.

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

Select this component when a 500 mA current capacity is required in a surface-mount form factor. Ensure the input voltage remains within the specified 7 V to 35 V range to maintain proper regulation. Consider thermal management requirements due to power dissipation at higher load currents or input-output differentials compared to lower-current alternatives.

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

This regulator belongs to the LM78M family, which offers higher current capability than the LM78L series but utilizes a larger package than the LM78S series. It serves as a direct pin-compatible replacement for legacy through-hole regulators when adapted to surface-mount layouts. The device is categorized under PMIC Linear Voltage Regulators within Texas Instruments' product portfolio.

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

LM78M05CDT: Identical electrical specifications with tube packaging instead of reel. UA78M05CDCYR: Alternative SOT-223 package variant with similar performance characteristics. Verify pinout compatibility and thermal resistance differences when substituting.