LT8303ES5#TRMPBF Integrated Circuits (ICs)

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The LT8303ES5#TRMPBF is part of Linear Technology’s family of DC/DC Switching Regulators. It is a non-synchronous, buck-boost switchmode power supply controller optimized for battery-powered applications. It reduces the external component count by integrating four high-side and four low-side power MOSFETs into a single package.

This part operates in either buck or boost mode, depending on the situation. The LT8303ES5#TRMPBF also features low RDS(ON) current-sense MOSFETs, allowing the use of smaller MOSFETs and reducing power dissipation and cost. Its protection features include cycle-by-cycle current limit and thermal shutdown.

The LT8303ES5#TRMPBF has a number of applications in areas such as portable medical devices, portable electronics and communications equipment. Its operating temperature range is -40°C to +85°C. It supports input voltages from 3V to 32V and output voltages from 0.6V to Vin (input voltage). With a switching frequency as high as 1.5MHz and up to 95% efficiency, the LT8303ES5#TRMPBF is a great choice for those looking for a high-performance boost/buck power supply.

The working principle of the LT8303ES5#TRMPBF is based on the buck and boost topologies, in which a power inductor is used to transfer energy from the input to the output. The device uses two PWM signals to drive the power MOSFETs, one of which is used to drive the low-side MOSFET and the other to drive the high-side MOSFET. The output voltage is adjusted via an external resistor divider network.

In addition, the LT8303ES5#TRMPBF has a wide range of protection features, including UVLO thresholds and a guard band designed to protect against reverse voltage or short circuit conditions. The device also features adjustable over-voltage protection, current limit, and thermal protection. The device is also designed to operate with a minimum duty cycle of 50%.

The LT8303ES5#TRMPBF provides a high level of flexibility and performance in a variety of applications. Its ability to switch seamlessly between buck and boost topologies and its wide range of protection features make it an ideal choice for those in need of a high-performance, cost-effective DC/DC switching regulator.

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