LTC3240EDC-3.3#TRPBF

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The LTC3240EDC-3.3#TRPBF is a synchronous monolithic step-down DC-DC switching regulator from Linear Technology Corporation. It offers power management designers a single-chip solution to most intermediate bus powering applications. This product simplifies board layout and reduce component count due to its internal synchronous power switches and high accuracy on-chip voltage reference. This device also offers a wide input voltage range and high output current capability. The LTC3240EDC-3.3#TRPBF is designed to be used in a variety of applications that require efficient voltage regulation across a wide input voltage range.

Application Field

The LTC3240EDC-3.3#TRPBF is ideally suited for USB powering and other low-voltage/high-current applications. It can also be used in applications that require a lower output voltage than the input voltage. With its wide 6V to 72V input voltage range, the LTC3240EDC-3.3#TRPBF is a great choice for many automotive, industrial and other PoE systems. The device supports output currents of up to 3.5A. The small size and low pin count of the device makes it well-suited for applications where space is limited and efficiency of operation is critical.

Working Principle

The LTC3240EDC-3.3#TRPBF is an integrated synchronous step-down switching regulator and works on the principle of pulse width modulation. At its heart is a fixed frequency, current mode step-down regulator that operates by periodically switching between different duty cycles to regulate the output voltage. The switching frequency can be set by the user and is adjustable over a wide range. The power stage uses integrated power switches to reduce the external component count. An on-chip voltage reference provides high accuracy and eliminates the need for external components. The high-side switch is current limited to protect against short circuit faults. The combination of the integrated switches and reference make this device ideal for voltage regulation applications.

The LTC3240EDC-3.3#TRPBF also integrates a wide range of protections and features to protect it from fault conditions and to improve overall system performance. Soft start, current mode fold-back protection, overvoltage protection, thermal protection, input undervoltage lockout, and adjustable output voltage, are just some of the features that can be found on the LTC3240EDC-3.3#TRPBF. This PMIC provides designers with an easy to use, efficient, and reliable solution for intermediate bus powering applications.

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