LT3752IFE-1#TRPBF

The LT3752IFE-1#TRPBF is a current mode DC/DC, switching controller with a low side switch and an adjustable switching frequency. It is suitable for a variety of applications from battery charging to high efficiency DC/DC switching converters. It is a floating device that is capable of sourcing or sinking current and features an on-chip power MOSFET with a low RDS(ON).

The LT3752IFE-1#TRPBF features an adjustable switching frequency and is capable of operating up to 150kHz. With its tight control loop, the LT3752IFE-1#TRPBF can maintain a steady output voltage over a wide range of load currents, even at light loading conditions. It has a total harmonic distortion of only 0.03% over a wide load range, making it ideal for high-performance applications.

Application Field

The LT3752IFE-1#TRPBF is mostly used as a DC/DC switching converter in high-performance applications. It is particularly suitable for battery charging applications, since its current mode control provides fast response time under dynamic load current conditions. This makes it an ideal choice for high current applications such as automotive battery charging. Additionally, it can be used in other applications such as USB PD power bank, POE (Power over Ethernet) and other communications systems.

The LT3752IFE-1#TRPBF can also be used in regulated heavy-load applications, such as driving LEDs. It is capable of operating over a wide range of input and output voltages, from 5V to 30V, making it suitable for a variety of applications. Additionally, it provides a low output ripple voltage for improved efficiency and power management.

Working Principle

The LT3752IFE-1#TRPBF operates in current mode, meaning that it monitors its own output current and adjusts its switching frequency accordingly. It operates in a hysteretic control loop, comparing the signal from its current sense amplifier to a set level in order to control its output voltage. At high load conditions, the output voltage will be regulated at the predetermined set level; at low load conditions, the output voltage will drop slightly lower than the set level due to less current being drawn.

The LT3752IFE-1#TRPBF features programmable overcurrent protection, which limits the output current to a predetermined level in order to protect the device and ensure the best possible efficiency. Additionally, it has a built-in logic-level enable pin to allow external shutdown of the device. It also has a short circuit protection feature which shuts down the device in the event of a short circuit.

In conclusion, the LT3752IFE-1#TRPBF is a versatile DC/DC switching controller with a wide range of application fields, from battery charging to high efficiency DC/DC switching converters. With its adjustable switching frequency, tight control loop and low output ripple voltage, it provides a reliable and efficient solution for high-performance applications.