DC-DC Switching Buck-Boost Regulator, Adjustable, 2.4V-5.5Vin, 2.4V-5.25Vout, 1.2Aout, DFN-12

LTC3441EDE#PBF - DC-DC Switching Buck-Boost Regulator, Adjustable, 2.4V-5.5Vin, 2.4V-5.25Vout, 1.2Aout, DFN-12

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Product Overview

The LTC3441EDE#PBF is a high-efficiency fixed frequency buck-boost DC-to-DC Converter operates efficiently from input voltages above, below or equal to the output voltage. The topology incorporated in the IC provides a continuous transfer function through all operating modes, making the product ideal for single lithium ion or multicell applications where the output voltage is within the battery voltage range. The device includes two 0.10R N-channel MOSFET switches and two 0.11R P-channel switches. External Schottky diodes are optional and can be used for a moderate efficiency improvement. The operating frequency is internally set to 1MHz and can be synchronized up to 1.7MHz. Quiescent current is only 25µA in Burst Mode® operation, maximizing battery life in portable applications. Burst Mode® operation is user controlled and can be enabled by driving the MODE/SYNC pin high. If the MODE/SYNC pin is driven low or with a clock, then fixed frequency switching is enabled.
  • Single inductor
  • No Schottky diodes
  • True output disconnect in shutdown
  • Synchronizable oscillator
  • Up to 95% high efficiency
  • Up to 1.2A continuous output current from a single lithium-ion
  • <1µA Quiescent current in shutdown


Computers & Computer Peripherals, Consumer Electronics, Portable Devices

Product Information

Synchronous Buck-Boost
MSL 1 - Unlimited
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