TC1264-3.3VEBTR

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

The TC1264-3.3VEBTR is a fixed-output, high-accuracy CMOS low dropout regulator manufactured by Microchip Technology. It provides a regulated 3.3V output with a maximum current of 800mA. The device operates within an input voltage range of 2.7V to 6.0V and features a typical supply current of 80µA at full load. Key electrical parameters include a line regulation of 0.007%/V, a power supply rejection ratio of 64dB at 1kHz, and an output noise of 260nV/√Hz at 10kHz. It incorporates overcurrent and overtemperature protection and is housed in a 3-lead DDPAK package.

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

• CMOS construction eliminates wasted ground current to extend battery life
• Integrated thermal shutdown and overcurrent protection circuits
• Ultra-low noise operation suitable for sensitive analog loads
• Stable with small output capacitors as low as 1µF

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

• Battery operated systems
• Portable computers
• Medical instruments
• Cellular/GSM/PHS phones
• Linear post-regulators for SMPS

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

Verify the specific ordering suffix EBTR confirms the DDPAK-3 package and tape-and-reel packaging format. Confirm RoHS compliance status and lead-free JEDEC designator requirements against current manufacturing specifications. Ensure the fixed 3.3V output voltage matches the system design constraints before finalizing procurement orders.

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

Select this component when a fixed 3.3V rail is required with up to 800mA capability. The low quiescent current makes it suitable for portable applications where efficiency is critical. Verify that the input voltage remains above the minimum operating threshold plus the dropout voltage across the expected load and temperature range.

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

This part belongs to the TC1264 family of fixed-output CMOS LDOs from Microchip Technology. The family offers various output voltages and packages including SOT-223, TO-220, and DDPAK. The TC1264 series is designed specifically for battery-operated systems requiring high accuracy and low noise performance compared to traditional bipolar regulators.

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

TC1264-3.3VEB

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

What is the minimum required output capacitance for stability?

The TC1264 is stable with an output capacitor of only 1µF.

How does the supply current behave under varying load conditions?

Unlike bipolar regulators, the TC1264's supply current does not increase with load current; it remains typically 80µA at full load.