TPS75533KTTTG3

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

The TPS75533KTTTG3 is a fixed-output 3.3V linear regulator from the TPS755xx series, manufactured by Texas Instruments. It provides a maximum output current of 5A with a typical dropout voltage of 250mV at full load. The device features a low quiescent current of 125µA and supports an input voltage range up to 5.5V. It includes integrated power-good status indication and protection against overcurrent, thermal overload, reverse polarity, and undervoltage lockout. The component is housed in a TO-263 (DDPAK-5) surface-mount package.

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

• Delivers high continuous output current capability for demanding power loads
• Maintains stable regulation with minimal voltage drop under heavy load conditions
• Provides low static current consumption to extend battery life in portable applications
• Includes integrated power-good monitoring and comprehensive fault protection mechanisms

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

• Point-of-load regulation for digital signal processors
• Power supply stages for field-programmable gate arrays
• Voltage regulation for embedded microcontroller systems
• Power distribution networks for high-current logic circuits

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

Verify the specific suffix KTTTG3 to confirm the lead-free RoHS-compliant variant and tape-and-reel packaging configuration. Ensure compatibility with the TO-263 footprint during PCB layout. Confirm that the target application operates within the specified 5.5V maximum input voltage limit. Check for updated lifecycle notices as this part may be subject to discontinuation or replacement recommendations.

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

Select this component when a fixed 3.3V rail requires sustained 5A current delivery with tight transient response requirements. The PMOS architecture offers superior dropout performance compared to NMOS alternatives. Consider the thermal dissipation capabilities of the TO-263 package relative to the ambient operating environment and board copper area available for heat spreading.

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

This device belongs to the TPS755xx family of ultra-low-dropout regulators designed for high-current applications. The series integrates both fixed and adjustable voltage options, sharing common architectural benefits such as fast transient response and low quiescent current. The TPS75533 specifically targets the 3.3V output requirement within this lineup.

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

TPS75533KTTR is listed as a direct substitute.