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LTC1474IS8#PBF

DC-DC Switching Buck (Step Down) Regulator, Adjustable, 3V-18Vin, 1.23V-18Vout, 320mAout, SOIC-8

LINEAR TECHNOLOGY LTC1474IS8#PBF

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Manufacturer Part No:
LTC1474IS8#PBF
Order Code:
2294986
Technical Datasheet:
LTC1474IS8#PBF   Datasheet
See all Technical Docs

Product Overview

The LTC1474IS8#PBF is a high-efficiency Step-down Converter with internal P-channel MOSFET power switches that draw only 10µA typical DC supply current at no load while maintaining output voltage. The LTC1474 uses logic-controlled shutdown. The low supply current coupled with Burst Mode® operation enables the LTC1474 to maintain high efficiency over a wide range of loads. These features, along with their capability of 100% duty cycle for low dropout and wide input supply range, make the LTC1474 ideal for moderate current (up to 300mA) battery-powered applications. The peak switch current is user-programmable with an optional sense resistor (defaults to 325mA minimum if not used) providing a simple means for optimizing the design for lower current applications. The peak current control also provides short-circuit protection and excellent startup behaviour. A low-battery detector that remains functional in shutdown is provided.
  • Very low dropout operation - 100% Duty cycle
  • Low-battery detector functional during shutdown
  • Programmable current limit with optional current sense resistor (10 to 400mA typical)
  • Short-circuit protection
  • Few external components required
  • Over 92% possible high efficiency
  • Internal 1.4R power switch (VIN=10V)
  • 10µA Typical very low standby current
  • 6µA Typical active low micropower shutdown

Applications

Consumer Electronics, Wireless, Power Management, Portable Devices, Safety

Product Information

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:
Buck (Step Down)

:
3V

:
18V

:
1Outputs

:
SOIC

:
8Pins

:
320mA

:
1.23V

:
18V

:
-

:
85°C

:
-

:
-

:
MSL 1 - Unlimited
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Technical Docs (3)

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Rs.773.93

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