LTC3121IDE#PBF

LINEAR TECHNOLOGY  LTC3121IDE#PBF  直流-直流开关同步升压稳压器, 可调, 1.8V-5.5V输入, 2.2V-15V/1.5A输出, 1 MHz, DFN-12

The is a synchronous step up DC to DC converter with adjustable output in 12 pin DFN package. The 1.5A current limit along with the ability to program output voltages up to 15V makes the LTC3121 well suited for a variety of demanding applications. Once started, operation will continue with inputs down to 500mV which extends run time in many applications. Adjustable PWM switching optimizes applications for highest efficiency or smallest solution footprint. The oscillator can also be synchronized to an external clock for noise sensitive applications. Selectable burst mode operation reduces quiescent current to 25µA, ensuring high efficiency across entire load range. An internal soft start limits inrush current during start-up. The LTC3121 also includes less than 1µA shutdown current, robust protection under short circuit, thermal overload and output overvoltage conditions.

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Adjustable output voltage range from 2.2V to 15V

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Input voltage range from 1.8V to 5.5V

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400mA output current for VIN = 5V and VOUT = 12V

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Synchronous rectification with up to 95% efficiency

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Adjustable switching frequency from 100KHz to 3MHz

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Inrush current limit

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Output disconnects from input during shut down mode

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Operating junction temperature range from -40°C to 125°C