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LT3493

Features: ` Wide Input Range: 3.6V to 36V Operating, 40V Maximum` 1.2A Output Current` Fixed Frequency Operation: 750kHz` Output Adjustable Down to 780mV` Short-Circuit Robust` Uses Tiny Capacitors and Inductors` Soft-Start` Internally Compensated` Low Shutdown Current: <2A` Low VCESAT Switch: ...

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SeekIC No. : 004401102 Detail

LT3493: Features: ` Wide Input Range: 3.6V to 36V Operating, 40V Maximum` 1.2A Output Current` Fixed Frequency Operation: 750kHz` Output Adjustable Down to 780mV` Short-Circuit Robust` Uses Tiny Capacitors ...

LT3493 Data Sheet

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Part Number:
LT3493
Supply Ability:
5000

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

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Upload time: 2024/12/21

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Product Details

Description



Features:

` Wide Input Range: 3.6V to 36V Operating, 40V Maximum
` 1.2A Output Current
` Fixed Frequency Operation: 750kHz
` Output Adjustable Down to 780mV
` Short-Circuit Robust
` Uses Tiny Capacitors and Inductors
` Soft-Start
` Internally Compensated
` Low Shutdown Current: <2A
` Low VCESAT Switch: 330mV at 1A
` Thermally Enhanced, Low Profi le DFN Package


Application

· Automotive Battery Regulation
· Industrial Control Supplies
· Wall Transformer Regulation
· Distributed Supply Regulation
· Battery-Powered Equipment


Pinout

Connection Diagram


Specifications

Input Voltage (VIN) ...........................................40V
BOOST Pin Voltage ............................................50V
BOOST Pin Above SW Pin ..................................25V
SHDN Pin ..........................................................40V
FB Voltage ..........................................................6V
Operating Temperature Range (Note 2)
    LT3493E ....................................... 40 to 85  
    LT3493I ...................................... 40 to 125
Maximum Junction Temperature .................... 125
Storage Temperature Range .......... 65 to 150




Description

The LT®3493 is a current mode PWM step-down DC/DC converter with an internal 1.75A power switch. The wide operating input range of 3.6V to 36V (40V maximum) makes the LT3493 ideal for regulating power from a wide variety of sources, including unregulated wall transformers, 24V industrial supplies and automotive batteries. Its high operating frequency allows the use of tiny, low cost inductors and ceramic capacitors, resulting in low, predictable output ripple.

Cycle-by-cycle current limit provides protection against shorted outputs and soft-start eliminates input current surge during start-up. The low current (<2A) shutdown mode provides output disconnect, enabling easy power management in battery-powered systems.




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