TLV70030DDCR

Product Overview

TLV70030DDCR from Texas Instruments is a surface-mount linear voltage regulator for fixed 3 V positive output rails. It provides one output with a 200 mA maximum load current and accepts input voltages up to 5.5 V. The maximum dropout voltage is 0.25 V at 200 mA, while quiescent current is 55 µA and maximum supply current is 270 µA. The device has 68 dB PSRR at 1 kHz and an enable control for standby or power sequencing. Protection features include over-current, over-temperature, reverse polarity, and under-voltage lockout. It is offered in a SOT-23-5 Thin / TSOT-23-5 package and rated for -40°C to 125°C junction temperature.

Key Features

• Fixed 3 V positive output with 200 mA maximum load current.
• Maximum input voltage of 5.5 V and dropout voltage of 0.25 V at 200 mA.
• 55 µA quiescent current and 270 µA maximum supply current.
• 68 dB power-supply rejection ratio at 1 kHz.
• Enable control for output shutdown or power sequencing.
• Protection against over-current, over-temperature, reverse polarity, and under-voltage lockout.
• Surface-mount SOT-23-5 Thin / TSOT-23-5 package with -40°C to 125°C junction temperature rating.

Applications

• Low-power 3 V rail for battery-operated portable devices.
• Fixed supply for microcontrollers, sensors, and mixed-signal subsystems.
• Noise-sensitive analog or mixed-signal subsystems where input ripple rejection is useful.
• Standby power control using the enable pin in sequenced or sleep-mode designs.

Design & Procurement Notes

Designers should confirm that the input source stays below 5.5 V and provides headroom above the 3 V output, especially near 200 mA where the specified maximum dropout is 0.25 V. The 55 µA quiescent current supports battery-powered designs, but total system current should include load current and connected circuitry. The enable control can be used to turn the regulator off during standby, so the enable signal state should be considered in the circuit design. The 68 dB PSRR at 1 kHz helps attenuate low-frequency input ripple, while high-noise inputs may still require careful layout and filtering. Protection features reduce risk during over-current, over-temperature, reverse-polarity, and under-voltage conditions, but package thermal behavior and the -40°C to 125°C junction temperature range should still be considered. For procurement, match the SOT-23-5 Thin / TSOT-23-5 footprint and verify that the fixed 3 V output suits the target load.