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LT1945EMS#PBF

DC/DC Switching Regulator, Boost, 2 Output, 1.2 V to 15 V in, 34 V/350 mA out, MSOP-10

LINEAR TECHNOLOGY LT1945EMS#PBF

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Manufacturer Part No:
LT1945EMS#PBF
Order Code:
1273495
Technical Datasheet:
LT1945EMS#PBF   Datasheet
See all Technical Docs

Product Overview

The LT1945EMS#PBF is a Dual Micropower DC/DC Converter with positive and negative outputs. Each converter is designed with a 350mA current limit and an input voltage range of 1.2 to 15V, making it ideal for a wide variety of applications. Both converters feature a quiescent current of only 20µA at no load, which further reduces to 0.5µA in shutdown. A current limited, fixed off-time control scheme conserves operating current, resulting in high efficiency over a broad range of load current. The 36V switch allows high voltage outputs up to ±34V to be easily generated without the use of costly transformers. The LT1945's low off-time of 400ns permits the use of tiny, low profile inductors and capacitors to minimize footprint in space-conscious portable applications. The LT1945 contains additional circuitry to provide protection during start-up and under short-circuit conditions.
  • Generates well-regulated positive and negative outputs
  • Low quiescent current (20µA in active mode per converter, <1µA in shutdown mode)
  • Operates with VIN as low as 1.2V
  • Low VCESAT switch (250mV at 300mA)
  • Uses small surface mount components
  • High output voltage (up to ±34V)

Applications

Computers & Computer Peripherals, Portable Devices, Power Management, Imaging, Video & Vision, Multimedia, Consumer Electronics

Product Information

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:
2 Output

:
1.2V

:
15V

:
MSOP

:
10Pins

:
350mA

:
350mA

:
34V

:
-34V

:
Adjustable

:
-

:
Boost (Step Up)

:
85°C

:
-

:
MSL 1 - Unlimited
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Technical Docs (3)

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