LT3758EDD#PBF

LT3758 is a wide input range, current mode, DC/DC controller which is capable of generating either positive or negative output voltages. They can be configured as either a boost, flyback, SEPIC or inverting converter. The LT3758 drive a low side external N-channel power MOSFET from an internal regulated 7.2V supply. The fixed frequency, current-mode architecture results in stable operation over a wide range of supply and output voltages. The operating frequency of LT3758 can be set with an external resistor over a 100KHz to 1MHz range, and can be synchronized to an external clock using the SYNC pin. A minimum operating supply voltage of 5.5V, and a low shutdown quiescent current of less than 1µA, make the LT3758 ideally suited for battery powered systems. The LT3758 feature soft-start and frequency foldback functions to limit inductor current during start-up and output short-circuit.

• Wide input voltage range from 5.5V to 100V
• Positive or negative output voltage programming with a single feedback pin
• Current mode control provides excellent transient response
• Programmable input under voltage lockout with hysteresis
• Programmable soft-start
• 10-lead plastic DFN package
• Operating temperature range from -40°C to 125°C

附註

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