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LTC3525D-3.3 Datasheet

LTC3525D-3.3 Datasheet

400mA Micropower Synchronous Step-Up DC/DC Converter with Pass Through Mode
Part No.: LTC3525D-3.3
Page: 14 Pages
Size: 431 KB
Manufacturer: Linear Technology
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Views: 1
Update Time: 2023-11-03 15:40:40
DataSheet: Download

LTC3525D-3.3 Datasheet Applicable Part

Part No. Packing SPQ Marking MSL Pins Temp Range Package Description Buy
LTC3525DESC6-3.3#PBF Tube   LCQZ 1 6 -40°C ~ 85°C 6-Lead Plastic SC70  
LTC3525DESC6-3.3#TRPBF Reel 2500 LCQZ 1 6 -40°C ~ 85°C 6-Lead Plastic SC70  
LTC3525DESC6-3.3#TRMPBF Reel 500 LCQZ 1 6 -40°C ~ 85°C 6-Lead Plastic SC70  
LTC3525DISC6-3.3#PBF Tube   LCQZ 1 6 -40°C ~ 125°C 6-Lead Plastic SC70  
LTC3525DISC6-3.3#TRPBF Reel 2500 LCQZ 1 6 -40°C ~ 125°C 6-Lead Plastic SC70  
LTC3525DISC6-3.3#TRMPBF Reel 500 LCQZ 1 6 -40°C ~ 125°C 6-Lead Plastic SC70  
SPQ:Standard Pack Quantity;MSL:Moisture Sensitivity Level

LTC3525D-3.3 Datasheet(PDF)

LTC3525D-3.3 Datasheet(Picture)

LTC3525D-3.3 Features

  • VOUT Connected to VIN in Shutdown
  • Up to 95% Efficiency
  • 0.85V Minimum Input Start-Up Voltage
  • Fixed Output Voltage of 3.3V
  • Delivers 60mA at 3.3V from a 1V Input, or 140mA at 3.3V from a 1.8V Input
  • Burst Mode® Operation: IQ = 7μA
  • VIN Range: 0.5V to 4.5V
  • Only Three External Components
  • VIN > VOUT Operation
  • Anti-Ringing Control
  • Short-Circuit and Overtemperature Protection
  • Very Low Profile of 1mm
  • Tiny 6-Lead SC70 Package

LTC3525D-3.3 Applications

  • MP3 Players
  • Portable Instruments
  • Glucose Meters
  • Digital Cameras

LTC3525D-3.3 Description

The LTC3525D-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.

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