LTC1439CG#PBF

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

LTC1439CG#PBF belongs to PMIC - Voltage Regulator - DC DC Switching Controller application field. As a typical DC DC switching controller, it has a wide range of applications, especially in power management. By utilizing Low Thermal Resistance SOT-23 package and its low operating current and low quiescent current, LTC1439CG#PBF allows designers to engineer power efficient applications. In addition, it also supports a built-in wide range of bias supply and discharge time for convenient and flexible operation.

Overview

LTC1439CG#PBF is a versatile DC DC switching controller that features high efficiency, low power dissipation, and wide range of bias supply. The device has an integrated powerful gate driver with adjustable switching frequency from 300kHz up to 2MHz, allowing for faster response and better power dissipation. In addition, the device feature an output gate drive that is capable of switching current up to 1A. The embedded loop compensation, external pull-up resistor, and adjustable control pin voltage are suitable for wide range of applications in power management and voltage regulation.

Applications

LTC1439CG#PBF can be used in a wide range of applications in power management, such as adjustable linear regulator, switching DC-DC converter, and battery charger. It is particularly suitable for applications where a wide range of input voltage, bias voltage, high switching frequency, and very low power dissipation are required. For example, the device can be used in mobile device battery chargers and solar panel systems, where the low power dissipation and wide range of bias supply can significantly decrease the design complexity.

Working Principle

The working principle of the LTC1439CG#PBF lies in its integrated gate driver, which can modulate the voltage applied to the output MOSFET and thus affect the output current of the switching power supply. The device has an adjustable switching frequency from 300kHz to 2MHz, allowing users to achieve the desired efficiency with different operating frequencies. In addition, the device also features an adjustable control pin voltage and a pull-up resistor. By adjusting the control pin voltage, the device can ensure a current level in the output MOSFET, and the pull-up resistor is used to prevent the MOSFET from running at lower current levels.

The device also features a built-in loop compensation which can be adjusted to ensure that the output voltage stays within the specified range. This is achieved by modulating the switching frequency according to the input and output voltages, thus ensuring a stable operating point even under different operating conditions.

Conclusion

The LTC1439CG#PBF is a versatile DC DC switching controller that can be used in a wide range of applications in power management. The device features a wide range of adjustable features, such as a wide range of bias supply, an adjustable switching frequency up to 2MHz, and excellent power dissipation capabilities. Along with its integrated loop compensation, controlling the device\'s performance is a breeze even in demanding applications. This makes the LTC1439CG#PBF an ideal choice for projects requiring precise voltage and power control in power management applications.

The specific data is subject to PDF, and the above content is for reference