Texas Instruments LP2985-33DBVR Fixed LDO Voltage Regulator, 3.3V, 150mA, SOT-

The Texas Instruments LP2985-33DBVR is a fixed-output, low-dropout voltage regulator offering exceptional and cost-effective performance, making it ideal for both portable and non-portable electronic applications. This device provides a precise 3.3V output from a wide input voltage range of 2.2V to 16V, with an impressive ultra-low dropout voltage of just 280mV at its full rated load current of 150mA.

A key benefit is its excellent output voltage tolerance, available in two grades: a high-precision 1% for the A version and a standard 1.5% for the non-A version. This accuracy ensures stable power for sensitive circuitry. The regulator is designed for quiet operation, generating only 30µVRMS of noise when paired with a 10nF bypass capacitor, and remains stable with low-ESR ceramic capacitors, simplifying board design.

Robust Protection & Efficiency

Built-in protection features include over-current and over-temperature shutdown, safeguarding both the regulator and your application from fault conditions. It also offers high peak-current capability for handling transient loads. For power-sensitive designs, the device boasts a low quiescent current of 850µA at full load and an exceptionally low typical shutdown current of just 0.01µA, maximising battery life in portable devices.

Applications & Handling

This green product, manufactured without antimony or bromine (No Sb/Br), is perfectly suited for powering a wide range of consumer electronics and portable devices. The device is supplied in a compact, surface-mount SOT-23-5 package, requiring minimal board space. Please note: the device has limited built-in ESD protection; during storage and handling, leads should be shorted together or the device placed in conductive foam to prevent electrostatic damage to the MOS gates.

With its combination of precision, low dropout, low noise, and robust protection, the LP2985-33DBVR is a reliable and high-effic