Texas Instruments Fixed LDO Voltage Regulator, 3.3V Out, 200mA, TSOT-23-5

The Texas Instruments TLV70033DDCT is a fixed-output, low-dropout (LDO) linear voltage regulator designed for power-sensitive applications. Housed in a compact 5-pin SOT-23 package, it offers excellent line and load transient performance, making it a highly reliable choice for modern electronics.

A precision bandgap reference and error amplifier ensure an overall output accuracy of 2%. Key performance benefits include low output noise, a very high power supply rejection ratio (PSRR) of 68dB at 1kHz, and a low dropout voltage of just 175mV at a 200mA output current. These features combine to provide stable, clean power, which is essential for sensitive analogue and digital circuits, particularly in battery-operated devices where efficiency is critical.

This regulator is remarkably stable, requiring an effective output capacitance of only 0.1µF. This allows for the use of smaller, more cost-effective ceramic capacitors, which also perform better with regard to bias voltage and temperature derating. It maintains its specified accuracy even with no output load, simplifying design and improving performance in low-power states.

For robust operation, the device includes integrated thermal shutdown and overcurrent protection, safeguarding both the regulator and the downstream circuitry. It operates across a wide input voltage range of 2V to 5.5V and is rated for an industrial temperature range of -40°C to 125°C.

Primary Applications

• Power management systems
• Portable and battery-operated handheld equipment
• Wireless communication modules
• Networking devices
• Consumer electronics

With its low quiescent current of just 31µA, the TLV70033DDCT is engineered to maximise battery life, delivering efficient and stable 3.3V power for a wide array of electronic designs.