TC1303B-ZH0EMF

Overview

The TC1303B-ZH0EMF is a low-dropout (LDO) linear voltage regulator manufactured by Microchip Technology. It provides a fixed output voltage of 2.5V with a maximum load current of 300mA. The device features a typical dropout voltage of 200mV at full load, ensuring efficient operation under varying input conditions. It includes internal protection mechanisms such as thermal shutdown and current limiting to safeguard against overload and overheating scenarios.

Feature Summary

• Fixed 2.5V output voltage for stable power supply applications
• Low dropout voltage characteristic for improved efficiency
• Integrated thermal shutdown and current limit protection

Applications

• Portable battery-powered devices requiring stable low-voltage regulation
• Embedded systems needing precise reference voltages
• Communication equipment requiring noise-sensitive power rails

Procurement Notes

Verify the exact suffix ZH0EMF matches your bill of materials, as it denotes specific packaging and tape-and-reel configuration. Confirm RoHS compliance status if required by your manufacturing standards. Ensure the operating temperature range aligns with your system's environmental specifications before finalizing procurement.

Selection Notes

Select this component when a fixed 2.5V output is required with moderate current demands up to 300mA. Consider its low dropout performance for applications where input voltage may vary close to the output level. Evaluate the SOT-23-5 package constraints regarding PCB space and thermal dissipation capabilities relative to your design layout.

Part Context

This part belongs to Microchip's TC1303 series of LDO regulators, designed for portable electronics. The series offers various fixed output voltages and current ratings. The TC1303B variant specifically targets applications requiring reliable regulation with built-in protections in a compact footprint suitable for space-constrained designs.

Replacement Considerations

Check for direct pin-compatible alternatives within the same family or from other manufacturers offering similar 2.5V/300mA specs. Verify equivalent dropout voltage and protection features to ensure functional parity without redesigning the surrounding circuitry.