TPS71715DCKR

TPS71715DCKR is a linear voltage regulator device designed by Texas Instruments, which is suited for portable and battery-powered applications.

It is a low-noise, low dropout regulator, with an output voltage of 1.5V to 5.0V. It can be operated in applications with supplies ranging from 2.30V-15V and output currents from 100mA to 1A. The low dropout voltage of 200mV makes this device ideal for use as a trusted step-down regulator for battery-powered applications.

TPS71715DCKR features high efficiency and low power consumption. An internal N-channel power MOSFET switches in step with an internal oscillator in order to maintain regulating the output voltage. It has auto-discharge capability so the output voltage can be held at zero volts without relying on external components.

This device also supports current-limit and thermal shutdown functions in order to avoid destructive output shorts and offer extra protection. It is equipped with shutdown pin which can be used to shut down the regulator, reducing the quiescent current to 0uA in case of no system operation. The TPS71715DCKR offers an excellent line and load transient response for better stability.

Application Field

TPS71715DCKR can be used in various low voltage voltage regulation applications such as industrial controls, handheld device power management, automotive power supply, medic power supply and telecom power converters.

It is also suitable for powering digital and analog circuits in any application where the voltage needs to be kept stable and constant under varying load conditions.

Working Principle

TPS71715DCKR works in open loop mode. It has an internal voltage divider, whose output is fed to a differential amplifier. The output voltage of the amplifier is then compared to the reference voltage. If the amplifier output is different from the reference voltage, an error signal is generated. The error signal is then applied to the GATE terminal of the internal power MOSFET, which increases or decreases its conduction. This results in the output voltage of the regulator being adjusted to the reference voltage.

The output voltage is set by two resistor dividers, one each for setting the minimum and maximum voltages. The GATE terminal of the internal power MOSFET is also used to turn off the device if the voltage falls below the set threshold. The device consumes less than 0.6mW when enabled, allowing for stable and efficient operation.

The device also supports multiple safety features like thermal shutdown and current limit, which are designed to allow the device to operate in harsh and high temperature environments.

Overall, TPS71715DCKR is a high performance, low profile, low noise and low power device suitable for any battery-powered or portable device application.