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LT3489

Features: 2.5A, 0.12, 40V Internal Switch 2MHz Switching Frequency Integrated Soft-Start Function VIN Range: 2.6V to 16V Adjustable Output from VIN to 40V Low VCESAT Switch: 110mV at 1A (Typical) 8V at 610mA from a 3.3V Input Internal or ExternalApplication TFT-LCD Bias Supplies GPS Receivers DSL...

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SeekIC No. : 004401099 Detail

LT3489: Features: 2.5A, 0.12, 40V Internal Switch 2MHz Switching Frequency Integrated Soft-Start Function VIN Range: 2.6V to 16V Adjustable Output from VIN to 40V Low VCESAT Switch: 110mV at 1A (Typical) 8...

LT3489 Data Sheet

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Part Number:
LT3489
Supply Ability:
5000

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

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Product Details

Description



Features:

2.5A, 0.12, 40V Internal Switch
2MHz Switching Frequency
Integrated Soft-Start Function
VIN Range: 2.6V to 16V
Adjustable Output from VIN to 40V
Low VCESAT Switch: 110mV at 1A (Typical)
8V at 610mA from a 3.3V Input
Internal or External


Application

TFT-LCD Bias Supplies
GPS Receivers
DSL Modems
Local Power Supply


Pinout

Connection Diagram


Specifications

VIN Voltage .............................................................16V
SW Voltage ..............................................0.4V to 40V
FB, VC, COMP, SS Voltages .......................................6V
SHDN Voltage .........................................................16V
Current Into FB Pin .............................................±1mA
Maximum Junction Temperature .......................... 125
Operating Temperature Range (Note 2) ..40 to 85
Storage Temperature Range .................65 to 150
Lead Temperature (Soldering, 10 sec) .............. .. 300


Description

The LT®3489 is a fi xed frequency step-up DC/DC converter containing an internal 2.5A, 40V switch. The LT3489 is ideal for large TFT-LCD panel power supplies. The LT3489 switches at 2MHz, allowing the use of tiny, low profi le inductors and low value ceramic capacitors. Loop compensation can be either internal or external, giving the user fl exibility in setting loop compensation and allowing optimized transient response with low ESR ceramic output capacitors. Soft-start is controlled with an external capacitor, which determines the input current ramp rate during start-up.

The 8-lead MS8E package and high switching frequency en-sure a low profi le overall solution less than 1.1mm high.




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