LT1374

PRODUCTION

4.5A, 500kHz Step-Down Switching Regulator

Data Sheet Product Selection Table
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Overview

  • Constant 500kHz Switching Frequency
  • High Power 16-Pin TSSOP Package Available
  • Uses All Surface Mount Components
  • Inductor Size Reduced to 1.8µH
  • Saturating Switch Design: 0.07Ω
  • Effective Supply Current: 2.5mA
  • Shutdown Current: 20µA
  • Cycle-by-Cycle Current Limiting
  • Easily Synchronizable
LT1374
4.5A, 500kHz Step-Down Switching Regulator
5V Buck Converter Efficiency vs Load Current Product Package 1 Product Package 2 Product Package 3 Product Package 4
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Documentation

Data Sheet 1

User Guide 2

Application Note 1

Design Note 1

Technical Articles 1

Data Sheet

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

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Software Resources

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Hardware Ecosystem

Parts Product Life Cycle Description
Circuit Monitors 1
LTC2960
RECOMMENDED FOR NEW DESIGNS 36V Nano-Current Two-Input Voltage Monitor
Hot Swap Controllers 1
LT4363
RECOMMENDED FOR NEW DESIGNS High Voltage Surge Stopper with Current Limit
Oscillators 1
LTC6909
PRODUCTION 1 to 8 Output, Multiphase Silicon Oscillator with Spread Spectrum Modulation
Power System Management (PSM) & Sequencers 1
LTC2974
RECOMMENDED FOR NEW DESIGNS 4-Channel PMBus Power System Manager Featuring Accurate Output Current Measurement
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Tools & Simulations

LTspice 1

Models for the following parts are available in LTspice:

  • LT1374
  • LT1374-5
  • LT1374HV
  • LT1374HV-5
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.

Evaluation Kits

eval board
schematic 1
DC187A-A

LT1374CR | 4.5A SWITCH, 500kHz STEP-DOWN REGULATOR, 5.5V to 25VIN, 3.3V or 5.0V @ 4A OUTPUT, DD PACKAGE

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Product Details

DC187A-A: Demo Board for the LT1374 4.5A, 500kHz Step-Down Switching Regulator.


 


eval board
schematic 2
DC187A-B

LT1374CR-SYNC | 4.5A SWITCH, 500kHz STEP-DOWN REGULATOR, 5.5V to 25VIN, 3.3V or 5.0V @ 4A OUTPUT, DD PACKAGE

Buy Now View Details

Product Details

DC187A-B: Demo Board for the LT1374 4.5A, 500kHz Step-Down Switching Regulator.


 


eval board
schematic 3
DC474A

LT1374CFE | 4A, 500KHz Step Down Switching Regulator, 5-25VIN up to 4A, Jumper Selectable 3.3 or 5VOUT

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Product Details

DC474A: Demo Board for LT1374 4.5A, 500kHz Step-Down Switching Regulator.


 


DC188A-B

LT1374CS8-SYNC | 4.5A Switch, 500kHz Step-Down Regulator, 5.5V to 25VIN, 3.3V or 5.0V @ 4A Output, SO8 Package

Buy Now View Details

Product Details
DC187A-A
LT1374CR | 4.5A SWITCH, 500kHz STEP-DOWN REGULATOR, 5.5V to 25VIN, 3.3V or 5.0V @ 4A OUTPUT, DD PACKAGE
DC187A-A - Schematic
DC187A-B
LT1374CR-SYNC | 4.5A SWITCH, 500kHz STEP-DOWN REGULATOR, 5.5V to 25VIN, 3.3V or 5.0V @ 4A OUTPUT, DD PACKAGE
DC187A-A - Schematic
DC474A
LT1374CFE | 4A, 500KHz Step Down Switching Regulator, 5-25VIN up to 4A, Jumper Selectable 3.3 or 5VOUT
DC474A - Schematic
DC188A-B
LT1374CS8-SYNC | 4.5A Switch, 500kHz Step-Down Regulator, 5.5V to 25VIN, 3.3V or 5.0V @ 4A Output, SO8 Package
DC188A-A
LT1374CS8 | 4.5A Switch, 500kHz Step-Down Regulator, 5.5V to 25VIN, 3.3V or 5.0V @ 4A Output, SO8 Package

Reference Designs

DK-100G-5SGXEA7N Dev Kit
DK-100G-5SGXEA7N Dev Kit
DK-100G-5SGXEA7N Parts List
DK-100G-5SGXEA7N Block Diagram
DK-100G-5SGXEA7N Block Diagram
DK-100G-5SGXEA7N Power Tree
Altera 100G Development Kit, Stratix V Edition Circuits from the lab

View Detailed Reference Design

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 100G Development Kit, Stratix V Edition
DK-100G-5SGXEA7N Dev Kit
DK-100G-5SGXEA7N Parts List
DK-100G-5SGXEA7N Block Diagram
DK-100G-5SGXEA7N Block Diagram
DK-100G-5SGXEA7N Power Tree

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