TC1262-2.5VDB

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

The TC1262-2.5VDB is a fixed output, high accuracy CMOS low dropout regulator manufactured by Microchip Technology. It provides a 2.5 V output with a maximum current of 500 mA in a 3-Pin SOT-223 package. The device operates within an input voltage range of 2.7 V to 6.0 V and maintains a junction temperature range from -40°C to +125°C. Key electrical specifications include a typical supply current of 80 µA at full load, a line regulation of 0.003 %/V, and a load regulation of 0.002 %/mA. The output voltage accuracy is ±0.5%, and it features overcurrent and overtemperature protection.

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

• CMOS construction eliminates wasted ground current to extend battery life
• Integrated overcurrent and overtemperature protection circuits
• Stable operation with a minimum output capacitor of 1 μF
• Ultra-low noise operation with fast response to step changes in load

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

• Battery operated systems
• Portable computers
• Medical instruments
• Instrumentation
• Linear post-regulators for SMPS

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

Verify the specific suffix 'DB' confirms the 3-Pin SOT-223 package configuration. Confirm that the '2.5V' designation matches the required fixed output voltage. Ensure the operating environment falls within the specified -40°C to +125°C junction temperature range. Check datasheet thermal resistance guidelines for adequate heat dissipation in the target PCB layout.

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

Select this component when a fixed 2.5 V rail is required with up to 500 mA load capability. The CMOS architecture offers significantly lower quiescent current compared to bipolar regulators, making it suitable for power-sensitive designs. Verify that the input voltage remains above the dropout threshold across the entire load and temperature range.

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

This part belongs to the TC1262 family of 500 mA fixed output CMOS LDOs. Other variants in the series offer different fixed output voltages such as 2.8 V, 3.0 V, 3.3 V, and 5.0 V. Alternative packages available in the family include TO-220 (AB suffix) and DDPAK (EB suffix).

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

Other TC1262 variants with different output voltages or packages may serve as functional substitutes if the electrical requirements align. Consult the manufacturer's product identification system for compatible alternatives.