DC/DC Controller, Positive to Negative, 2.5V to 36V, 1 Output, Buck, Boost, 1MHz, MSOP-10

LTC3704IMS#PBF - DC/DC Controller, Positive to Negative, 2.5V to 36V, 1 Output, Buck, Boost, 1MHz, MSOP-10

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Product Overview

The LTC3704IMS#PBF is a current-mode positive-to-negative DC/DC Controller that drives an N-channel power MOSFET and requires very few external components. Intended for low to high power applications, it eliminates the need for a current sense resistor by utilizing the power MOSFET's on-resistance, thereby maximizing efficiency. The IC's operating frequency can be set with an external resistor over a 50kHz to 1MHz range and can be synchronized to an external clock using the MODE/SYNC pin. Burst Mode operation at light loads, a low minimum operating supply voltage of 2.5V and a low shutdown quiescent current of 10µA make the LTC3704 ideally suited for battery-operated systems. For applications requiring constant frequency operation, the Burst Mode operation feature can be defeated using the MODE/SYNC pin. Higher than 36V switch voltage applications are possible with the LTC3704 by connecting the SENSE pin to a resistor in the source of the power MOSFET.
  • High efficiency operation (no sense resistor required)
  • Current mode control provides excellent transient response
  • ±1% Internal voltage reference
  • ±2% RUN pin threshold with 100mV hysteresis
  • User-controlled pulse skip or burst mode operation
  • Internal 5.2V Low dropout voltage regulator
  • Capable of operating with a sense resistor for high output voltage applications (VDS >36V)


Power Management, Communications & Networking, Portable Devices

Product Information

1 Output
Buck, Boost
MSL 1 - Unlimited
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