TLV70718PDQNR

Product Overview

The TLV70718PDQNR from Texas Instruments is a linear voltage regulator IC that provides a fixed positive 1.8V output from a single regulator. It supports up to 200mA output current and accepts input voltages up to 5.5V. The device includes an enable control and integrates over-current, over-temperature, short-circuit, and reverse-polarity protection. It uses a surface-mount 4-XDFN exposed-pad package, identified as 4-X2SON (1x1), with a junction temperature range of -40°C to 125°C.

Key Features

• Fixed positive 1.8V output with one regulator and up to 200mA output current
• Maximum input voltage of 5.5V and maximum dropout voltage of 0.36V at 150mA
• Enable control feature for controlled output activation
• Over-current, over-temperature, short-circuit, and reverse-polarity protection
• 50µA quiescent current and PSRR of 70dB to 50dB over 100Hz to 1MHz
• Surface-mount 4-XDFN exposed-pad package, 4-X2SON (1x1)

Applications

• Regulating a fixed 1.8V supply rail for digital logic subsystems
• Providing a locally derived 1.8V rail for sensor interfaces and peripheral circuits
• Managing 1.8V power domains in embedded control boards that use an enable signal

Design & Procurement Notes

When selecting the TLV70718PDQNR, verify that the available input voltage remains within the 5.5V maximum and that the required load current does not exceed 200mA. The maximum dropout value of 0.36V at 150mA should be considered when determining minimum input-to-output headroom, especially under heavier load conditions. The enable feature allows controlled output activation, while the exposed-pad package requires attention to soldering, thermal dissipation, and PCB layout. Confirm that the 4-X2SON (1x1) footprint matches the assembly process. The protection features can reduce external circuitry for fault conditions, but external input and output filtering may still be needed to meet system ripple, transient, and layout requirements.