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ANALOG DEVICES LTC3443EDE#PBF

DC-DC Switching Synchronous Buck-Boost Regulator, Adjustable, 2.4 to 5.5 V in, 2.4 to 5.25V/1.2A out

ANALOG DEVICES LTC3443EDE#PBF
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Manufacturer Part No:
LTC3443EDE#PBF
Order Code:
4025346
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Technical Datasheet:
LTC3443EDE#PBF   Datasheet
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Product Range Selector (TUK SGACK902S Keystone Coupler)

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Product Overview

LTC3443 is a high efficiency, fixed frequency, buck boost DC/DC converter that operates from input voltages above, below or equal to the output voltage. The part is pin for pin compatible with its predecessor, this device, with a lower operating frequency (600KHz), and a VC pin clamp circuit during Burst Mode operation. 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. This device includes two 0.10 ohm N-channel MOSFET switches and two 0.11ohm P-channel switches. 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. It is used in application like handheld computers, handheld instruments, MP3 players, digital cameras etc.
  • Single inductor, no schottky diodes
  • High efficiency upto 96%
  • Quiescent current (Burst Mode® operation) is 28μA typical
  • Upto 1.2A continuous output current from a single lithium-ion
  • True output disconnect in shutdown, synchronizable oscillator
  • Input voltage range is 2.4V to 5.5V, output voltage range is 2.4V to 5.25V
  • Quiescent current in shutdown is 1μA maximum
  • Selectable burst mode or fixed frequency operation
  • Operating temperature is -40°C to 85°C
  • Package style is 12-lead plastic DFN

Product Information

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:
Adjustable

:
1Outputs

:
Synchronous Buck-Boost

:
2.4V

:
5.5V

:
1.2A

:
DFN-EP

:
12Pins

:
2.4V

:
5.25V

:
125°C

:
TUK SGACK902S Keystone Coupler

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Technical Documents (1)

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