LTC3220IPF-1#PBF Integrated Circuits (ICs)

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The LTC3220IPF-1#PBF is a high efficiency, synchronous step-up DC-DC converter with integrated switches tailored for driving LEDs. With its wide switching frequency range, programmable current limit and adjustable output voltage up to 28V, the converter provides the right solution for large current LED applications requiring higher input voltage.The LTC3220IPF-1#PBF belongs to the PMIC - LED Drivers category, with the purpose of driving LEDs.

The LTC3220IPF-1#PBF works in current mode control to achieve highly regulated output current and improved efficiency over the entire load operating range. The current mode feedback loop also provides fast transient response and excellent duty cycle control characteristics. An integrated, high-side power MOSFET, with the internal low-side Power MOSFET, handles the boosts and controls the output current in peak current mode performance, providing high efficiency in constant output current. The wide switching frequency range, adjustable from 1kHz to 1.5MHz, provides flexibility for many applications.

The LTC3220IPF-1#PBF has an adjustable output voltage up to 28V, eliminating the abovementioned problem of having to use external voltage adjustment circuitry and thus saving more components. The LTC3220IPF-1#PBF also features programmable current limit, with the setpoint controlled by an external resistor, further saving components. Its synchronous rectifier control allows the switches to provide higher efficiency and reduce the device\'s power dissipation at elevated switching frequencies. There are also other features such as bootstrap operation and current revert circuit, providing further flexibility and less materials cost.

The LTC3220IPF-1#PBF is packaged in a small 8-pin MSOP form factor, allowing its usage in space-constrained applications. It is also able to withstand a wide range of operating temperature, from -40°C to 85°C, making it suitable for many environments. All these features combine to make the LTC3220IPF-1#PBF a great choice for driving LEDs in high voltage applications.

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