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LT3493-3

Features: Wide Input Range: 6.8V 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 1...

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LT3493-3: Features: Wide Input Range: 6.8V 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 In...

LT3493-3 Data Sheet

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Part Number:
LT3493-3
Supply Ability:
5000

Price Break

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

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Upload time: 2024/11/20

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Product Details

Description



Features:

Wide Input Range: 6.8V 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 Profile 2mm * 3mm DFN-6 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-3........................................... 40 to 85
Maximum Junction Temperature ....................... 125
Storage Temperature Range ...........65°C to 150


Description

The LT®3493-3 is a current mode PWM step-down DC/DC converter with an internal 1.75A power switch. The wide operating input range of 6.8V to 36V (40V maximum) makes the LT3493-3 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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