TPS76316DBVR

The TPS76316DBVR voltage regulator is an integrated low-dropout (LDO) linear regulator. This device is designed for low-noise, low-power applications with a very fast output voltage transient response. It offers a low quiescent current operation, low dropout voltage and requires only two external capacitors for stable operation.

The TPS76316DBVR is available in a 2x2mm DFN package and is ideal for space-constrained applications. It can handle an input voltage range of 2.3V up to 5.5V, and regulated output voltage range from 1.0V up to 4.8V and can provide a maximum output current of 300mA.

The TPS76316DBVR has a high PSRR of up to 65dB and excellent transient response with output only deviating less than 8mV in 150uS. It also has a fast enable and disable time of 1.5uS. This IC is ideal for applications such as digital DSL modems, Power over Ethernet (PoE) and data converters.

The TPS76316DBVR can also be used in a wide range of other applications such as motor driver power systems, base station power supplies and power line communications. It has an extremely efficient power line supervision, with a wide input voltage monitoring range from 1.8V to 5.5V in 900mV step.

The working principle of the TPS76316DBVR is based on a series regulator design. This IC consists of an output stage, control logic, and error amplifier. The output stage is equivalent to a low-dropout series linear regulator, where the current flows from Vin to Vout is controlled by the error amplifier. The output voltage is measured by a voltage divider and is compared to the reference voltage. Any difference is amplified by the error amplifier and is sent to the output stage to control the output voltage.

The output voltage is also stabilized with an external capacitance in order to reduce any output voltage transients due to load changes. With the output stabilizer, the output voltage will be held at a constant level even if the output current changes. The output voltage can also be fine-tuned by external resistors.

In conclusion, the TPS76316DBVR is a small and efficient voltage regulator that offers excellent load transient response, low quiescent current, low dropout voltage and fast enable/disable. It is ideal for several applications such as digital DSL modems, PoE and data converters. Its working principle based on a series regulator design ensures that output voltage is accurately and optimally regulated.