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LTC1872ES6

Features: High Efficiency: Over 90%High Output Currents Easily AchievedWide VIN Range: 2.5V to 9.8VVOUT Limited Only by External Components Constant Frequency 550kHz OperationBurst ModeTM Operation at Light LoadCurrent Mode Operation for Excellent Line and Load Transient ResponseLow Quiescent Curr...

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SeekIC No. : 004401941 Detail

LTC1872ES6: Features: High Efficiency: Over 90%High Output Currents Easily AchievedWide VIN Range: 2.5V to 9.8VVOUT Limited Only by External Components Constant Frequency 550kHz OperationBurst ModeTM Operation ...

LTC1872ES6 Data Sheet

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Part Number:
LTC1872ES6
Supply Ability:
5000

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  • 1~5000
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  • Negotiable
  • Processing time
  • 15 Days
Total Cost: $ 0.00

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Product Details

Description



Features:

 High Efficiency: Over 90%
 High Output Currents Easily Achieved
 Wide VIN Range: 2.5V to 9.8V
 VOUT Limited Only by External Components
Constant Frequency 550kHz Operation
 Burst ModeTM Operation at Light Load
 Current Mode Operation for Excellent Line and Load Transient Response
 Low Quiescent Current: 270mA
 Shutdown Mode Draws Only 8mA Supply Current
 ±2.5% Reference Accuracy
 Tiny 6-Lead SOT-23 Package


Application

 Lithium-Ion-Powered Applications
 Cellular Telephones
 Wireless Modems
 Portable Computers
 Scanners



Pinout

Connection Diagram


Specifications

Input Supply Voltage (VIN).........................0.3V to 10V
SENSE, NGATE Voltages ............ 0.3V to (VIN + 0.3V)
VFB, ITH/RUN Voltages ..............................0.3V to 2.4V
NGATE Peak Output Current (<10ms) ....................... 1A
Storage Ambient Temperature Range ... 65°C to 150°C
Operating Temperature Range (Note 2) .. 40°C to 85°C
Junction Temperature (Note 3) ............................. 150°C
Lead Temperature (Soldering, 10 sec).................. 300°C



Description

  The LTC®1872 is a constant frequency current mode stepup DC/DC controller providing excellent AC and DC load and line regulation. The device incorporates an accurate undervoltage lockout feature that shuts down the LTC1872 when the input voltage falls below 2.0V.


  The LTC1872 boasts a ±2.5% output voltage accuracy and consumes only 270mA of quiescent current. For applications where efficiency is a prime consideration, the LTC1872 is configured for Burst Mode operation, which enhances efficiency at low output current.


  In shutdown, the device draws a mere 8mA. The high 550kHz constant operating frequency allows the use of asmall external inductor.


  The LTC1872 is available in a small footprint 6-lead SOT-23. n Lithium-Ion-Powered Applications




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