LDI1117-05D

Overview

The Diotec Semiconductor LDI1117-05D is a fixed-output Low Dropout (LDO) voltage regulator providing a nominal 5 V output with a tolerance of ±1%. It supports a maximum output current of 1 A and accepts input voltages up to 20 V. The device features a typical power supply rejection ratio (PSRR) of 75 dB at 120 Hz and operates within a junction temperature range of -40°C to +125°C. Packaged in an SO-8 surface-mount format, it includes internal thermal overload and current limit protection.

Feature Summary

• Fixed 5 V output with 1% accuracy
• Integrated thermal and current limiting protection
• High ripple rejection performance

Applications

• General-purpose linear power regulation
• Battery-powered equipment supply rails
• Embedded system voltage conditioning

Procurement Notes

Verify the specific suffix 'D' corresponds to the SO-8 package variant when sourcing. Confirm RoHS compliance status through official manufacturer documentation prior to integration. Ensure handling procedures account for moisture sensitivity classification during surface mount assembly processes.

Selection Notes

Select this component for applications requiring a stable 5 V rail from higher input sources. The SO-8 package suits space-constrained designs. Verify that the expected load current remains within the 1 A limit and that input-to-output differential voltage stays within safe operating area limits to prevent excessive power dissipation.

Part Context

This part belongs to the LDI1117 series of positive LDO regulators manufactured by Diotec Semiconductor. The series offers various fixed output voltages in multiple packages including SOT-223 and SO-8. The LDI1117-05D specifically designates the 5 V version in the smaller SO-8 footprint.

Replacement Considerations

Cross-reference with other LDI1117 variants for different voltage outputs or package types such as LDI1117-3.3H. Verify pinout compatibility and thermal characteristics before substituting with generic LDO equivalents.