LT6654BHS6-2.5#TRMPBF

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Power management integrated circuits (PMICs) are robust and integrated circuits that enable efficient power delivery and optimized power systems design. Specifically, PMICs enable precise voltage regulation, superior thermal management, and optimized system level performance. Voltage references are vital for precise comparisons when studying and measuring voltage, current, and other signals in an electronic system. It is an important component of the power management system and is responsible for providing the precise analog reference level used in analog-to-digital converters, current and voltage regulators, precise comparators, multiplexers, and many other analog circuit blocks.

The LT6654BHS6-2.5#TRMPBF is an adjustable precision voltage reference for PMIC applications. This device is a bandgap reference that guarantees a stable 2.5V output voltage with a controlled temperature drift of 3 ppm/°C over the full operating temperature range.

Application Field

The LT6654BHS6-2.5#TRMPBF is well suited for precision voltage references in positive and/or negative PMIC applications such as power management, analog to digital converters, current and voltage regulators, multiplexers, and other precision analog circuit blocks. It can also be used in portable and battery powered applications such as industrial and automotive electronics and consumer devices.

Working Principle

The LT6654BHS6-2.5#TRMPBF is a bandgap reference circuit that relies on a controllable current to provide a precise and stable 2.5V reference voltage. The main difference between the LT6654BHS6-2.5#TRMPBF and other voltage references is the addition of two external resistors, one for adjusting the output voltage and one for controlling the temperature drift. By adding these two external components, the user can optimize the over-temperature drift and output voltage of the reference voltage.

The LT6654BHS6-2.5#TRMPBF consists of a differential amplifier, a voltage reference amplifier, and a voltage regulator. The differential amplifier is responsible for monitoring the output voltage and adjusting the voltage reference amplifier to guarantee the precise output voltage of 2.5V. The output of the voltage reference amplifier is provided to the voltage regulator, which acts as a buffer amplifier and precision regulator. The voltage regulator then feeds the 2.5V voltage reference voltage to the rest of the circuit. The two external resistors are used to control the drift of the output reference voltage and adjust it to a stable value over a wide range of temperature.

The LT6654BHS6-2.5#TRMPBF is capable of delivering output voltages as low as 1.225V and as high as 4.77V, and offers a maximum output current of 1mA. The device operates over an operating temperature range of -40°C to 125°C. It also features shutdown logic and extended fault protection, which help enhance its overall protection and reliability.

The LT6654BHS6-2.5#TRMPBF is a robust and reliable bandgap reference, which offers excellent performance and flexibility for PMIC applications. It is well suited for precision voltage references in positive and/or negative PMIC applications such as power management, analog to digital converters, current and voltage regulators, multiplexers, and other precision analog circuit blocks. It is also suitable for a wide range of applications, from industrial and automotive to consumer electronics.

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