PMIC - Voltage Regulators - DC DC Switching Regulators

The LTC3545EUD#TRPBF is an energy efficient DC/DC buck converter that provides multiple voltage levels with a current limit of up to 2A. It is a high voltage integrated power supply controller and helps to maintain efficiency while reducing the board space. It features a low dropout operation, which reduces dropout voltage from the output voltage as much as possible, allowing operation over a wide input voltage range with low loss. The LTC3545EUD#TRPBF supports single output, dual output, and three output configurations, and offers a wide operating temperature range.

Application Field and Working Principle

The LTC3545EUD#TRPBF can be used in biosensors, health tracking devices, building automation, medical equipments and metering systems. It is also suitable for powering devices such as motor drives, displays, lighting, audio/video devices, and low power IOT systems.

The LTC3545EUD#TRPBF is a synchronous step-down DC/DC converter. It utilizes a high switching frequency of up to 2.2MHz and internal synchronous rectifier to realize high efficiency and low loss in the power conversion process. The LTC3545EUD#TRPBF includes a high transient current limit, overcurrent protection, and thermal shutdown.

The LTC3545EUD#TRPBF features active-high and active-low enable pins for multi-rail outputs, allowing operation of single, dual and triple output configurations with independent output voltages. It also has an integrated gate driver with overcurrent protection and thermal shutdown, as well as a thermal management feature which reduces the output voltage when the die temperature exceeds a defined threshold.

The LTC3545EUD#TRPBF features a wide input voltage range from 4.2V to 16V and a wide output voltage range from 0.6V to 5V. The output voltage is programmable via an external resistor divider, and there is also an enable on pin option which allows the converter to be enabled/disabled via a logic signal. The output capacitor can be selected according to the application demands.

The LTC3545EUD#TRPBF is highly efficient and provides up to 94% efficiency at an input voltage of 4.2V and 5V output. It also supports a 5VSNVS supply that provides an output voltage of 3V directly from the 5V main supply.

The LTC3545EUD#TRPBF is a feature-rich power conversion solution and is suitable for a variety of different applications. It can be used in next-generation biosensors, medical equipments, metering systems, and other low power IOT systems.