TPS79630KTTTG3

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

The TPS79630KTTTG3 is a fixed-output low-dropout linear regulator from the Texas Instruments TPS796 series, providing a regulated 3.0 V output with a maximum continuous current of 1 A. It operates within an input voltage range of 2.7 V to 5.5 V and features ultralow noise performance of 42 µVRMS. The device achieves high power supply rejection ratio (PSRR) of 42 dB at 100 kHz and maintains a typical dropout voltage of 220 mV. Quiescent current is typically 260 µA. It supports ceramic output capacitors and includes thermal protection, overcurrent protection, and reverse polarity protection. The component is housed in a TO-263 (DDPAK-5) package and functions reliably across an operating temperature range of -40°C to 125°C.

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

• Ultralow-noise architecture designed for RF applications
• High PSRR capability at 100 kHz frequency
• Fast transient response for dynamic load changes
• Integrated comprehensive protection mechanisms

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

• RF front-end modules requiring clean power supplies
• Wireless communication systems
• Mobile phone power management circuits
• Portable electronic devices sensitive to noise

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

Verify the specific suffix KTTTG3 against the manufacturer's latest datasheet to confirm RoHS compliance and lead-free status. Ensure the TO-263 package variant matches your PCB footprint requirements. Confirm availability through authorized distributors as part numbers may have obsolescence notices or PCN updates affecting production status.

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

Select this component when designing circuits that demand minimal output noise for sensitive RF sections. The 1 A current rating suits moderate power loads while maintaining efficiency. Consider the 220 mV typical dropout voltage to ensure adequate input-to-output differential under all load conditions. Verify thermal dissipation capabilities in the TO-263 package for the expected ambient temperature and current draw.

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

This device belongs to the TPS796 family of ultralow-noise, high-PSRR LDOs optimized for RF and wireless applications. It complements other variants in the series offering different fixed voltages or adjustable outputs. The TPS796 series is engineered to provide stable regulation with minimal interference to high-frequency signals, making it suitable for modern communication standards.

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

Direct substitutes include TPS79630KTTR and TPS79630KTTRG3 from Texas Instruments. These alternatives share identical electrical specifications and pinouts. Verify package compatibility and RoHS status before substitution.