Linear Technology Corporation introduces the LTC3872, a current mode step-up DC/DC controller with 550kHz operating frequency. The LTC3872 does not require a sense resistor, saving board space and improving efficiency. This is a highly compact solution for converting a 2.5V to 9.8V input voltage up to a high output voltage. VOUT as high as 60V is achievable without a sense resistor, and when a sense resistor is used, the output voltage is limited only by external components. The LTC3872 can easily attain very high peak currents, depending on the selection of the external MOSFET. The IC's high operating frequency reduces
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