LTC3896IFE#TRPBF

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The LTC3896IFE#TRPBF voltage regulator is a member of the PMIC – Voltage Regulators – DC DC Switching Controllers category. This voltage regulator product provides an adjustable ‘constant on-time’ architecture that truly simplifies the design of synchronous step-down switching regulators. This device allows simple and accurate programming of output voltage and power levels, making it suitable for a variety of applications, such as point-of-load regulation and switching-mode power supplies. The LTC3896IFE#TRPBF offers a robust design and delivers multiple voltage regulation and system protection features to simplify design and ensure performance.

The LTC3896IFE#TRPBF is optimized to produce both low-ripple and low-noise output voltages. It has a fixed-frequency peak current mode control architecture, plus many other features, from which designs can benefit. The device operates from an input voltage range of 4.75V to 28V and offers an adjustable output voltage range of 0.5V to 95% of the input voltage. Output current of up to 20A is achievable with this device, making it suitable for a number of power applications.

The LTC3896IFE#TRPBF features an innovative double-sampling technique whereby the value of the output voltage is sensed twice with each cycle that the internal switch is operating. This double-sampling technique helps to minimize output voltage ripple, allowing the output voltage to remain within a very tight tolerance over a wide range of temperatures, load changes and switching frequencies. It also features a unique Current Share function that gives designers the flexibility to easily parallely connect multiple LTC3896IFE#TRPBFs to create power supplies with increased power output.

The LTC3896IFE#TRPBF has several protection and fault detection features which ensure system integrity, including overcurrent protection, voltage regulation window, over-temperature protection and soft-start programming. Other features of the device include EMI reduction, very low output ripple and noise levels, 97% efficiency and a wide input range.

The circuit diagram for the LTC3896IFE#TRPBF voltage regulator is relatively simple. It includes an input capacitor, a switch, an inductor, an output diode, an output capacitor and an enable control. The switch is a power MOSFET, which is controlled by the voltage regulator’s pulse-width modulation (PWM) signal. When the MOSFET is on, the input voltage is applied to the primary side of the inductor. The inductor stores energy and the voltage is then stepped down by the secondary side of the inductor. When the MOSFET is off, the stored energy is fed to the circuit’s output via the diode and output capacitor. This process is repeated to ensure that the output voltage remains within a certain range. This is the basic working principle of the device.

In conclusion, the LTC3896IFE#TRPBF voltage regulator is a robust and powerful voltage regulator product that is designed for a variety of applications. Its innovative double-sampling technique, various protection and fault detection features, and current share function, give it the flexibility and performance needed for reliable power management. Furthermore, its simple circuit diagram and basic yet effective working principle make it a suitable choice for a variety of voltage regulation applications.

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