LT3641EUFD#TRPBF

PMIC - Voltage Regulators - DC DC Switching Regulators

The LT3641EUFD#TRPBF is a monolithic synchronous step-down DC/DC converter designed specifically for applications requiring good ripple rejection, low output voltages and high current capabilities. It is also well-suited for use as secondary side synchronous rectification in non-isolated buck/boost applications.

The LT3641EUFD#TRPBF has a high current capability of up to 3.2 A per channel, adjustable switching frequency from 100 kHz to 1.2 MHz and a fixed 5 V internal reference. It features internal adaptive ON-time control for optimal efficiency over a wide range of load conditions. The output voltage can be programmed from 0.8 V to 6 V using an external resistor divider. In order to maximize efficiency and provide good transient response, the LT3641EUFD#TRPBF utilizes Synchronous Input Feed Forward (SIFF).

The LT3641EUFD#TRPBF operates in continuous conduction mode (CCM) in Buck mode and discontinuous conduction mode (DCM) in Boost mode. It is designed with built-in current and thermal protection, an enable pin and low-ripple Burst Mode operation, allowing for good no-load efficiency. The LT3641EUFD#TRPBF also supports dynamic channel switching, which allows the device to switch the output channel to another one with a precise delay time.

The LT3641EUFD#TRPBF includes architecture that implements a single P-channel, single N-channel MOSFET synchronous rectifier, which can deliver up to 3.2 A for a single output. The synchronous rectifier design also contributes to improved efficiency at various loads, making it suitable for low-power, high-current applications.

The LT3641EUFD#TRPBF is designed to bring the advantages of synchronous rectification and current sensing accuracy to the world of power conversion. The LT3641EUFD#TRPBF is an ideal choice for a wide variety of low-voltage DC/DC applications, such as cellular phones, computers and other digital applications. Its small, easy-to-use package allows designers to address the needs of size-sensitive applications.

In summary, the LT3641EUFD#TRPBF is a high-efficiency DC/DC converter intended for applications requiring high current and efficient power conversion. Its architecture is ideal for a variety of applications and its synchronous rectifier design helps reduce power losses and improve efficiency. The LT3641EUFD#TRPBF also has a low-ripple Burst Mode operation and built-in current and thermal protection, making it well-suited for applications such as cellular phones, computers and other digital applications.