MIC5317-1.5YD5-TR

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

The MIC5317-1.5YD5-TR is a high-performance single 150 mA low dropout regulator manufactured by Microchip Technology. It features a fixed 1.5 V output voltage with ±2% initial accuracy and operates within a 2.5 V to 6 V input range. The device delivers a typical quiescent current of 29 μA and provides 70 dB power supply rejection ratio at 1 kHz. It includes thermal shutdown and linear current limit protection, ensuring stability with 1 μF ceramic output capacitors.

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

• Ultra-small TSOT-23-5 package footprint for space-constrained designs
• Active-high enable pin allows zero off-mode current state when disabled
• Integrated thermal shutdown and linear current limiting for fault protection
• Stable operation guaranteed with standard 1 μF low-ESR ceramic capacitors

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

• USB dongles and peripheral power management
• Wireless LAN modules and battery-powered equipment
• Portable digital still and video cameras
• General purpose 5V system regulation

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

Verify the specific suffix YD5 corresponds to the TSOT-23-5 package variant required for your PCB layout. Confirm that the -TR designation indicates tape and reel packaging suitable for automated assembly processes. Ensure input and output capacitor selections meet the minimum 1 μF requirement for stability.

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

Select this component when a fixed 1.5 V rail is needed from a 2.5 V to 6 V source with minimal board space. The TSOT-23-5 package offers a smaller footprint compared to standard SOT-23 options. Consider the 29 μA ground current for battery life optimization in portable applications requiring efficient power management.

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

This part belongs to the MIC5317 family of high-performance LDOs designed for stringent space requirements. The family supports various output voltages from 1.0 V to 3.6 V and multiple package options including UDFN and SOT-23 variants. All members share identical electrical characteristics and protection features.

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

Direct substitutes include other MIC5317 variants with different output voltages or packages, such as MIC5317-1.8YD5-TR or MIC5317-1.5YM5-TR. Cross-family replacements require matching input voltage ranges, current capabilities, and package dimensions.