LT3460ES5#TRMPBF

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The LT3460ES5#TRMPBF is a monolithic synchronous buck DC/DC converter with an integrated low resistance on-chip power MOSFET designed to provide a simple, efficient, and cost-effective solution for applications requiring up to 2A of continuous load current. This device reduces solution size, cost, and design complexity when compared to discrete solutions.

Application Field

The LT3460ES5#TRMPBF is an excellent choice for applications with an input voltage range of 3V to 18V and an output voltage range of 0.6V to VIN. Common applications of the LT3460ES5#TRMPBF include system power supplies, powering FPGAs, DSPs and microcontrollers, as well as portable applications powered by single-cell Li-ion batteries.

Working Principle

The LT3460ES5#TRMPBF operates in a few basic steps. To begin, the device is enabled through an enable pin. This pin is pulled high by an external pull-up resistor and when enabled, it begins operation by turning on the integrated High-Side MOSFET. Current is then drawn from the input supply through the high-side MOSFET and flows through inductor L1 to the output. The current in the inductor is switched off after a certain time controlled by the switching frequency of the buck converter. Then, the cycle reverses and the low-side MOSFET turns on and pulls current form the output through inductor L1 back to the input supply. This cycle continues at a frequency determined by the resistor connected to the Oscillator pin. This ensures that a regulated output voltage is maintained.

In addition to the usual features of DC/DC converters, the LT3460ES5#TRMPBF also offers a few protection features. It includes overvoltage protection, short circuit protection, overcurrent protection, and thermal protection. This provides an additional layer of safety to the system in case of any potential fault conditions.

The LT3460ES5#TRMPBF provides a simplified solution for applications requiring a DC/DC converter with a current up to 2A and input supply voltage range of 3V to 18V. With integrated protection features, low resistance MOSFET, and a wide input voltage range, the LT3460ES5#TRMPBF provides a great solution for powering a host of applications including system power supplies, FPGA and microcontroller powered applications, and portable applications powered by single-cell lithium-ion batteries.

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