LT1534-1_1099539

Features: Greatly Reduced Conducted and Radiated EMI Low Switching Harmonic Content Independent Control of Switch Voltage and Current Slew Rates2A Current Limited Power SwitchRegulates Positive and Negative Voltages20kHz to 250kHz Oscillator Frequency Easily Synchronized to External Clock Wide Inp...

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SeekIC No. : 004400681 Detail

LT1534-1_1099539: Features: Greatly Reduced Conducted and Radiated EMI Low Switching Harmonic Content Independent Control of Switch Voltage and Current Slew Rates2A Current Limited Power SwitchRegulates Positive and ...

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Part Number:
LT1534-1_1099539
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: 2024/3/28

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Product Details

Description



Features:

Greatly Reduced Conducted and Radiated EMI
Low Switching Harmonic Content
Independent Control of Switch Voltage and Current Slew Rates
2A Current Limited Power Switch
Regulates Positive and Negative Voltages
20kHz to 250kHz Oscillator Frequency
Easily Synchronized to External Clock
Wide Input Voltage Range: 2.7V to 23V
Low Shutdown Current: 12mA Typical
Easier Layout than with Conventional Switchers



Application

Precision Instrumentation Systems
Isolated Supplies for Industrial Automation
Medical Instruments
Wireless Communications
Single Board Data Acquisition Systems



Pinout

  Connection Diagram


Specifications

Input Voltage (VIN) .................................................. 30V
Switch Voltage (COL) .............................................. 35V
SHDN Pin Voltage .................................................... 30V
Feedback Pin Current (FB) .................................... 10mA
Negative Feedback Pin Current (NFB) .................. ±10mA
Operating Junction Temperature Range
LT1534C ................................................ 0°C to 125°C
LT1534I ............................................ 40°C to 125°C
Maximum Junction Temperature .......................... 125°C
Storage Temperature Range .............. 65°C to 150°C
Lead Temperature (Soldering, 10 sec.)................. 300°C



Description

The LT®1534/LT1534-1 are a new class of switching regulator designed to reduce conducted and radiated electromagnetic interference (EMI). Ultralow noise and EMI are achieved by providing user control of the output switch slew rates. Voltage and current slew rates can be independently programmed to optimize switcher harmonic content versus efficiency.

The LT1534/LT1534-1 can reduce high frequency harmonic power by as much as 40dB with only minor losses in efficiency. The LT1534/LT1534-1 utilize a current mode architecture optimized for low noise boost topologies.

The ICs include a 2A power switch along with all necessary oscillator, control and protection circuitry. Unique error amp circuitry can regulate both positive and negative voltages. The internal oscillator may be synchronized to an external clock for more accurate placement of switching harmonics. Protection features include cycle-by-cycle current limit protection, undervoltage lockout and thermal shutdown. Low minimum supply voltage and low supply current during shutdown make the LT1534/LT1534-1 well suited for portable applications. The LT1534/LT1534-1 are available in the 16-pin narrow SO package.




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