LTC3727-1

PRODUCTION

High Efficiency, 2-Phase Synchronous Step-Down Switching Regulators

Part Models
6
1ku List Price
Starting From $6.41
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Part Details

  • Wide Output Voltage Range:
    • 0.8V ≤ VOUT ≤ 14V
  • Out-of-Phase Controllers Reduce Required Input Capacitance and Power Supply Induced Noise
  • OPTI-LOOP® Compensation Minimizes COUT
  • ±1% Output Voltage Accuracy
  • Power Good Output Voltage Monitor
  • Phase-Lockable Fixed Frequency 250kHz to 550kHz
  • Latched Short-Circuit Shutdown (LTC3727 Only)
  • Dual N-Channel MOSFET Synchronous Drive
  • Wide VIN Range: 4V to 36V Operation
  • Very Low Dropout Operation: 99% Duty Cycle
  • Adjustable Soft-Start Current Ramping
  • Foldback Output Current Limiting
  • Output Overvoltage Protection
  • Low Shutdown IQ: 20µA
  • Selectable Constant Frequency or Burst Mode® Operation
  • Small 28-Lead SSOP Package
  • LTC3727-1 Also Available in the 5mm × 5mm QFN Package
LTC3727-1
High Efficiency, 2-Phase Synchronous Step-Down Switching Regulators
Figure 1. High Efficiency Dual 12V/5V Step-Down Converter Product Package 1 Product Package 2
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Documentation

Data Sheet

This is the most up-to-date revision of the Data Sheet.

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Hardware Ecosystem

Parts Product Life Cycle Description
Dual-Supply Monitors 1
LTC2960 RECOMMENDED FOR NEW DESIGNS 36V Nano-Current Two-Input Voltage Monitor
Multiple Output Buck Regulators 1
LTC3880 RECOMMENDED FOR NEW DESIGNS Dual Output PolyPhase Step-Down DC/DC Controller with Digital Power System Management
Silicon Oscillators 1
LTC6909 PRODUCTION 1 to 8 Output, Multiphase Silicon Oscillator with Spread Spectrum Modulation
Surge Stopper, Overvoltage, and Overcurrent Protection 1
LT4363 RECOMMENDED FOR NEW DESIGNS High Voltage Surge Stopper with Current Limit
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Tools & Simulations

LTspice 1


Models for the following parts are available in LTspice:

  • LTC3727
  • LTC3727-1
  • LTC3727A-1
  • LTC3727LX-1
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.


Reference Designs

DK-VIDEO-4SGX230N Dev Kit
Altera Audio Video Development Kit, Stratix IV GX Edition Circuits from the lab

Features and Benefits

  • Analog Devices has worked closely with FPGA and processor manufacturers to develop verified power solutions that optimize cost, size and efficiency in high performance applications
  • Our reference designs are supported by an intuitive design tool set and IP
  • Our team can provide designs for quick prototypes that can speed time to market in the most complex applications
DK-DEV-4SGX230N Dev Kit
Altera Stratix IV GX FPGA Development Kit Circuits from the lab

Features and Benefits

  • Analog Devices has worked closely with FPGA and processor manufacturers to develop verified power solutions that optimize cost, size and efficiency in high performance applications
  • Our reference designs are supported by an intuitive design tool set and IP
  • Our team can provide designs for quick prototypes that can speed time to market in the most complex applications
Altera Audio Video Development Kit, Stratix IV GX Edition
DK-VIDEO-4SGX230N Dev Kit
LTC Parts List
DK-VIDEO-4SGX230N Block Diagram
DK-VIDEO-4SGX230N Power Tree
Altera Stratix IV GX FPGA Development Kit
DK-DEV-4SGX230N Dev Kit
LTC Parts List
DK-DEV-4SGX230N Block Diagram
DK-DEV-4SGX230N Power Tree

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