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LTC3426

Features: · Internal 2A MOSFET Switch· 1.2MHz Switching Frequency· Integrated Soft-Start· VIN Range: 1.6V to 4.3V· Low RDS(ON) Switch: 100mΩ at 5V Output· Delivers 5V at 800mA from a 3.3V Input· Delivers 3.3V at 800mA from a 2.5V Input· Uses Small, Low Profile External Components· Low Profil...

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SeekIC No. : 004402238 Detail

LTC3426: Features: · Internal 2A MOSFET Switch· 1.2MHz Switching Frequency· Integrated Soft-Start· VIN Range: 1.6V to 4.3V· Low RDS(ON) Switch: 100mΩ at 5V Output· Delivers 5V at 800mA from a 3.3V Inpu...

LTC3426 Data Sheet

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Part Number:
LTC3426
Supply Ability:
5000

Price Break

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

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Product Details

Description



Features:

· Internal 2A MOSFET Switch
· 1.2MHz Switching Frequency
· Integrated Soft-Start
· VIN Range: 1.6V to 4.3V
· Low RDS(ON) Switch: 100mΩ at 5V Output
· Delivers 5V at 800mA from a 3.3V Input
· Delivers 3.3V at 800mA from a 2.5V Input
· Uses Small, Low Profile External Components
· Low Profile (1mm) SOT-23 (ThinSOTTM) Package


Application

· White LED Driver Supply
· Local 3.3V or 5V Supply
· Battery Back-Up


Pinout

Connection Diagram


Specifications

VIN Voltage .................................................. 0.3V to 6V
SW Voltage .................................................. 0.3V to 6V
SHDN, FB Voltage ......................................... 0.3V to 6V
VOUT ............................................................. 0.3V to 6V
Operating Temperature Range (Note 2) .... 40 to 85
Storage Temperature Range .................. 65  to 125
Lead Temperature (Soldering, 10 sec)..................... 300


Description

The LTC®3426 step-up switching regulator generates an output voltage of up to 5.5V from an input voltage as low as 1.6V. Ideal for applications where space is limited, it switches at 1.2MHz, allowing the use of tiny, low cost and low profile external components. LTC3426's internal 2A, 100mΩ NMOS switch provides high efficiency even at heavy load, while the constant frequency, current mode architecture results in low, predictable output noise that is easy to filter.

Antiringing circuitry reduces EMI concerns by damping the inductor while in discontinuous mode, and internal soft-start eases inrush current worries. Internal frequency compensation is designed to accommodate ceramic output capacitors, further reducing noise. The device features very low shutdown current of 0.5µA.

The LTC3426 is available in the 6-lead SOT-23 package.




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