1. Products
  2. Power Management
  3. Switching Regulators
  4. Ultralow Noise Regulators
  5. LT1534


Overview

Features and Benefits

  • 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: 12µA Typical
  • Easier Layout than with Conventional Switchers

Product Details

The LT1534/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.

Applications

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

Product Lifecycle icon-recommended Production

At least one model within this product family is in production and available for purchase. The product is appropriate for new designs but newer alternatives may exist.

Tools & Simulations

LTspice

LTspice® is a powerful, fast and free simulation software, schematic capture and waveform viewer with enhancements and models for improving the simulation of analog circuits.

LTspice

Models for the following parts are available in LTspice:

LT1534
LT1534-1

Design Resources

ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well.  "Zero defects" for shipped products is always our goal.View our quality and reliability program and certifications for more information.

Part Number Material Declaration Reliability Data Pin/Package Drawing CAD Symbols, Footprints & 3D Models
LT1534CS#PBF Material Declaration Reliability Data 16-Lead SOIC (Narrow 0.15 Inch)
LT1534CS#TRPBF Material Declaration Reliability Data 16-Lead SOIC (Narrow 0.15 Inch)
LT1534CS-1#PBF Material Declaration Reliability Data 16-Lead SOIC (Narrow 0.15 Inch)
LT1534CS-1#TRPBF Material Declaration Reliability Data 16-Lead SOIC (Narrow 0.15 Inch)
LT1534IS#PBF Material Declaration Reliability Data 16-Lead SOIC (Narrow 0.15 Inch)
LT1534IS#TRPBF Material Declaration Reliability Data 16-Lead SOIC (Narrow 0.15 Inch)
LT1534IS-1#PBF Material Declaration Reliability Data 16-Lead SOIC (Narrow 0.15 Inch)
LT1534IS-1#TRPBF Material Declaration Reliability Data 16-Lead SOIC (Narrow 0.15 Inch)
Wafer Fabrication Data R386 Reliability Data

PCN-PDN Information

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Sample & Buy


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Buy Now Pricing


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List Pricing


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Lead Times


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