UA78M05IDCYR

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

The UA78M05IDCYR is a fixed positive linear voltage regulator from the Texas Instruments UA78M series. It provides a nominal output voltage of 5 V with a maximum output current of 500 mA. The device operates within an input voltage range of 7 V to 25 V and features a typical power supply rejection ratio (PSRR) of 80 dB at 120 Hz. It is housed in a surface-mount SOT-223-4 package and supports operation across an extended temperature range from -40°C to +125°C.

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

• Integrated thermal overload protection safeguards against excessive junction temperatures during fault conditions.
• Built-in internal current limiting prevents damage during short-circuit or overload events.
• Fixed output configuration ensures stable regulation without external feedback components.

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

• Portable battery-powered equipment requiring regulated 5 V logic supplies
• On-card regulation for distributed power architectures
• General-purpose power supplies in industrial control systems

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

Verify the complete part number including suffixes such as IDCYR to ensure correct package type and reel specifications. Confirm RoHS compliance status and moisture sensitivity level requirements prior to ordering. Cross-reference manufacturer datasheets for specific handling and storage guidelines related to surface-mount assembly processes.

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

Select this component when a compact surface-mount solution is required for 5 V regulation up to 500 mA. Ensure the input voltage remains above 7 V to maintain proper dropout performance. Consider the SOT-223-4 thermal characteristics for adequate heat dissipation in enclosed designs compared to through-hole alternatives.

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

This device belongs to the UA78M family of medium-current linear regulators, serving as a surface-mount alternative to traditional TO-220 packages. It maintains electrical compatibility with legacy 78xx series designs while offering reduced board footprint. The IDCYR designation specifically indicates the SOT-223-4 tape-and-reel packaging format optimized for automated pick-and-place manufacturing.

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

• UA78M05CDCYR
• SN78MCDCYR

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

What is the minimum input voltage required for proper regulation?

The minimum input voltage is 7 V to ensure the regulator maintains the specified 5 V output under load.

Does the UA78M05IDCYR include short-circuit protection?

Yes, the device incorporates internal current limiting and thermal shutdown protection mechanisms.