Low

LTC3427EDC#TRMPBF - 

DC-DC Switching Boost Step Up Regulator, Adjustable, 1.8V-5Vin, 1.8V-5.25Vout, 0.5Aout, DFN-6

LTC3427EDC#TRMPBF - DC-DC Switching Boost Step Up Regulator, Adjustable, 1.8V-5Vin, 1.8V-5.25Vout, 0.5Aout, DFN-6

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Manufacturer Part No:
LTC3427EDC#TRMPBF
Order Code:
1663901
Technical Datasheet:
(EN)
See all Technical Docs

Product Overview

The LTC3427EDC#TRMPBF is a high-efficiency fixed frequency step-up DC-to-DC converter with true output disconnect. Requiring minimal external components, the LTC3427 operates from an input voltage as low as 1.8V. The LTC3427 contains an internal 0.525R N-channel MOSFET switch and a 0.575R P-channel MOSFET synchronous rectifier, which enables it to supply 200mA at 3.3V from a 2-cell alkaline battery input. The LTC3427 limits inrush current during start-up and provides a soft-start of VOUT. A switching frequency of 1.25MHz minimizes solution footprint by allowing the use of tiny, low profile inductors and ceramic capacitors and produces very low VOUT ripple. The current-mode PWM design is internally compensated, reducing external parts count. Anti-ringing control reduces EMI in discontinuous mode operation. The LTC3427 also features low shutdown current of under 1µA and thermal shutdown.
  • Inrush current limiting and soft-start
  • Output disconnect in shutdown
  • Low noise PWM
  • Internal synchronous rectifier
  • Logic controlled shutdown (<1µA)
  • Anti-ringing control minimizes EMI
  • Tiny external components
  • Short-circuit protection
  • Up to 94% high efficiency

Applications

Consumer Electronics, Wireless, Sensing & Instrumentation, Portable Devices

Product Information

:
Synchronous Boost (Step Up)
:
1.8V
:
5V
:
1Outputs
:
DFN
:
6Pins
:
500mA
:
1.8V
:
5.25V
:
1.5MHz
:
85°C
:
-
:
-
:
Yes
:
MSL 1 - Unlimited
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