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LTC3525D-3.3

Linear
Part Number LTC3525D-3.3
Manufacturer Linear
Description 400mA Micropower Synchronous Step-Up DC/DC Converter
Published Mar 31, 2016
Detailed Description LTC3525D-3.3 400mA Micropower Synchronous Step-Up DC/DC Converter with Pass Through Mode Features n VOUT Connected to ...
Datasheet PDF File LTC3525D-3.3 PDF File

LTC3525D-3.3
LTC3525D-3.3

Overview
LTC3525D-3.
3 400mA Micropower Synchronous Step-Up DC/DC Converter with Pass Through Mode Features n VOUT Connected to VIN in Shutdown n Up to 95% Efficiency n 0.
85V Minimum Input Start-Up Voltage n Fixed Output Voltage of 3.
3V n Delivers 60mA at 3.
3V from a 1V Input, or 140mA at 3.
3V from a 1.
8V Input n Burst Mode® Operation: IQ = 7µA n VIN Range: 0.
5V to 4.
5V n Only Three External Components n VIN > VOUT Operation n Anti-Ringing Control n Short-Circuit and Overtemperature Protection n Very Low Profile of 1mm n Tiny 6-Lead SC70 Package Applications n MP3 Players n Portable Instruments n Glucose Meters n Digital Cameras L, LT, LTC, LTM, Burst Mode, Linear Technology and the Linear logo are registered trademarks and ThinSOT is a trademark of Linear Technology Corporation.
All other trademarks are the property of their respective owners.
Patents pending.
Description The LTC®3525D-3.
3 is a high efficiency synchronous stepup DC/DC converter that can start up with an input as low as 0.
85V.
It offers a compact, high efficiency alternative to charge pumps in single cell or dual cell alkaline or Li-Ion applications.
Only three small external components are required.
The LTC3525D features a fixed output voltage of 3.
3V.
In shutdown, VOUT is connected to VIN through the inductor.
The device includes a 0.
5Ω N-channel MOSFET switch and a 0.
8Ω P-channel synchronous rectifier.
Peak switch current ranges from 150mA to 400mA, depending on load, providing enhanced efficiency.
Quiescent current is an ultralow 7µA, maximizing battery life in portable applications.
Other features include anti-ringing control and thermal shutdown.
The LTC3525D is available in a tiny 6-Lead SC70 package.
List of LTC3525 Options PART NAME INPUT START-UP VOLTAGE LTC3525-3 0.
85V LTC3525-3.
3 0.
85V LTC3525-5 0.
85V LTC3525D-3.
3 0.
85V LTC3525L-3 0.
7V OUTPUT VOLTAGE 3V 3.
3V 5V 3.
3V 3V VOUT STATUS IN SHUTDOWN MODE Output Disconnect Output Disconnect Output Disconnect Pass Through Mo...


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