TPS71709DSER

TPS71709DSER is a three-terminal adjustable linear voltage regulator that follows the same family of Texas Instruments’ many other regulators. It is a cost-effective solution for low-dropout regulators that maintain low-noise operation, fast transient response, and superior accuracy over wide input and output voltage ranges.

The TPS71709DSER is a low-voltage linear regulator with an adjustable output voltage from 0.8 V to 14 V. It is a low-quiescent current, low-noise, low-dropout design that provides 360 mA of output current, which makes it suitable for applications such as point-of-load DC/DC converters, power converters devices that require low noise, and precision power supplies. The device features an external trim function to enable an output voltage adjustment range within 0.8 V to 14 V. This device comes with a shutdown mode that minimizes current consumption to just 0.3-µA.

The TPS71709DSER is the ideal choice for applications where regulating the output voltage accurately and with low power consumption is of prime importance. Its ultra-low quiescent current makes it ideal for low-power applications in the low-voltage range.

Applications

• DC/DC converters
• Bus regulation
• Power management
• Power converters
• Precision power supplies
• Battery-powered equipment
• Peripheral components

Working Principle

The TPS71709DSER is a three-terminal adjustable linear voltage regulator. The input voltage is applied to pin 3 (Vin) and the output voltage is applied to pin 2 (Vout). The reference voltage of the regulator is determined by the voltage applied to the adjustment pin (Vadj). The maximum output voltage is determined by the value of the external resistor connected between pins 1 and 3.

The device works by providing an output voltage, Vout, which is equal to the reference voltage, Vref, plus the output voltage. The output voltage is an adjustable output voltage provided by the TPS71709DSER and is equal to the sum of the reference voltage and the voltage across the external resistor connected between pins 1 and 3, i.e. Vout = Vref + (Vadj X R) where R is the resistance of the external resistor.

The device also includes built-in protection from over-voltage, over-current and thermal overloads, as well as a programmable soft-start feature to reduce output inrush current. There is also a shutdown mode that minimizes current consumption to 0.3-µA.

In summary, the TPS71709DSER is a cost-effective solution for low-dropout linear voltage regulators. It provides a low-noise and fast transient response along with superior accuracy in wide input and output voltage ranges. It is ideal for applications such as DC/DC converters, power converters, peripheral components, and precision power supplies.