LM385BDE4-1-2

The LM385BDE4-1-2 is a type of precision adjustable voltage regulator that belongs to the family of Programmable Multi-channel Integrated Circuit (PMIC) – Voltage Reference products developed by Texas Instruments (TI). It is designed to provide users with a lead-free, low-dropout thermal regulation circuit. It is primarily intended for 1.2 V to 3.6 V precision voltage references and adjustments.

The LM385BDE4-1-2 offers a wide range of accurately programmable single-ended voltage outputs, and its adjustable bandgap reference allows for a wide range of output voltages depending on the user\'s needs. It includes a built-in 200 mV reference voltage and an internal trimming circuit for robust regulation, so that users can dial-in the exact voltage that meets their requirements.

The supervisory and trimming circuits used in the LM385BDE4-1-2 ensure that the reference voltage remains within 1% accuracy from -40 ˚C up to +125 ˚C. This small variation in the reference voltage allows users to have tight voltage regulation and longer accuracy over temperature, which makes it ideal for use in applications where accuracy over temperature is critical.

The LM385BDE4-1-2 PMIC also features an adjustable voltage reference with an offset current. This allows users to set the specific voltage output that their applications need without having to find a separate device to derive an offset current. This feature also helps to reduce system complexity and further saves cost.

In terms of operation, the LM385BDE4-1-2 performs like a standard voltage reference IC. It includes an open collector output stage, which allows users to place a resistor between the output and the load to raise the output voltage. When the output voltage is at its maximum, the internal voltage regulator is turned off, resulting in minimal power loss. When the load requires a lower voltage, the internal regulator turns back on, resulting in a small increase in power consumption.

The LM385BDE4-1-2 from Texas Instruments is an innovative voltage regulator that efficiently delivers accurate outputs at low power consumption. Its adjustable bandgap reference gives users a wide range of accurate output voltages, while its internal offset current ensures additional system flexibility and cost savings. With its excellent temperature regulation, small physical profile and low-dropout characteristics make the LM385BDE4-1-2 a perfect choice for applications that require precise voltage reference.