LT1372
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LT1372

500kHz and 1MHz High Efficiency 1.5A Switching Regulators

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LTspice LT1372 Demo Circuit - 500kHz High Efficiency Boost Converter (5V to 12V @ .29A) Download 2.00KB LTspice LT1372 - Switching Regulators Download 2.15 KB
Part Models 11
1ku List Price Starting From $4.31
Features
  • Faster Switching with Increased Efficiency
  • Uses Small Inductors: 4.7µH
  • All Surface Mount Components
  • Only 0.5 Square Inch of Board Space
  • Low Minimum Supply Voltage: 2.7V
  • Quiescent Current: 4mA Typ
  • Current Limited Power Switch: 1.5A
  • Regulates Positive or Negative Outputs
  • Shutdown Supply Current: 12µA Typ
  • Easy External Synchronization
  • 8-Pin SO or PDIP Packages
Additional Details
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The LT1372/LT1377 are monolithic high frequency switching regulators. They can be operated in all standard switching configurations including boost, buck, flyback, forward, inverting and "Cuk." A 1.5A high efficiency switch is included on the die, along with all oscillator, control and protection circuitry. All functions of the LT1372/LT1377 are integrated into 8-pin SO/PDIP packages.

The LT1372/LT1377 typically consumes only 4mA quiescent current and has higher efficiency than previous parts. High frequency switching allows for very small inductors to be used. All surface mount components consume less than 0.5 square inch of board space.

New design techniques increase flexibility and maintain ease of use. Switching is easily synchronized to an external logic level source. A logic low on the shutdown pin reduces supply current to 12µA. Unique error amplifier circuitry can regulate positive or negative output voltage while maintaining simple frequency compensation techniques. Nonlinear error amplifier transconductance reduces output overshoot on start-up or overload recovery. Oscillator frequency shifting protects external components during overload conditions.

Applications

  • Boost Regulators
  • CCFL Backlight Driver
  • Laptop Computer Supplies
  • Multiple Output Flyback Supplies
  • Inverting Supplies
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file View Data Sheet
Documentation View All Documentation
LTspice LT1372 Demo Circuit - 500kHz High Efficiency Boost Converter (5V to 12V @ .29A) Download 2.00KB LTspice LT1372 - Switching Regulators Download 2.15 KB
Part Models 11
1ku List Price Starting From $4.31
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LT1372

Documentation

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Data Sheet

2

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UPDATED 08/23/2007
English

LT1372/LT1377: 500kHz and 1MHz High Efficiency 1.5A Switching Regulators Data Sheet

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198.00K
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UPDATED 02/21/2008
Japanese

LT1372: 500 kHz/1 MHz 高効率 1.5 A スイッチング・レギュレータ データシート

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118.00K
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Design Note

7

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UPDATED 03/21/2014
English
DN125 - Monolithic DC/DC Converters Break Speed Limits to Shrink Board Space redirect icon

77.00K

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UPDATED 03/21/2014
English
DN95 - Capacitor and EMI Considerations New High Frequency Switching Regulators redirect icon

80.00K

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UPDATED 02/21/2008
Japanese
DN95 新型高周波スイッチング・レギュレータ用のコンデンサとEMI対策 redirect icon

60.00K

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UPDATED 01/01/1995
English
Design Note 110: Micropower Buck/Boost Circuits, Part 2: Converting Four Cells to 5V* redirect icon

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UPDATED 01/01/1995
English
Design Note 109: Micropower Buck/Boost Circuits, Part 1: Converting Three Cells to 3.3V* redirect icon

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UPDATED 07/01/1998
English
Design Note 183: The LT1370: A 500kHz, 6A Monolithic Boost Converter redirect icon

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UPDATED 07/01/1998
Japanese
DN-183: LT1370 ：500kHz、6A モノリシック・ブースト・コンバータ redirect icon

Application Note

1

PDF Vector

PDF

UPDATED 02/05/2013
English
AN65 - A Fourth Generation of LCD Backlight Technology redirect icon

5.00M

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User Guide

1

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UPDATED 01/12/2010
English
DC053A - Demo Board redirect icon

176.00K

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Spec Notice

1

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UPDATED 11/22/2004
English
LT1372/LT1377 Specification Notice redirect icon

101.00K

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Reliability Data

1

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UPDATED 03/26/2018
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R388 Reliability Data redirect icon

32.91 K

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Documentation

Technical Documents 10
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Data Sheet 1

LT1372/LT1377: 500kHz and 1MHz High Efficiency 1.5A Switching Regulators Data Sheet

Reliability Data 1

R388 Reliability Data

User Guide 1

DC053A - Demo Board

Application Note 1

AN65 - A Fourth Generation of LCD Backlight Technology

Design Note 5

DN125 - Monolithic DC/DC Converters Break Speed Limits to Shrink Board Space
DN95 - Capacitor and EMI Considerations New High Frequency Switching Regulators
Design Note 110: Micropower Buck/Boost Circuits, Part 2: Converting Four Cells to 5V*
Design Note 109: Micropower Buck/Boost Circuits, Part 1: Converting Three Cells to 3.3V*
Design Note 183: The LT1370: A 500kHz, 6A Monolithic Boost Converter

Spec Notice 1

LT1372/LT1377 Specification Notice

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 Model Pin/Package Drawing Documentation CAD Symbols, Footprints, and 3D Models
LT1372CN8#PBF 8-Lead PDIP (Narrow 0.3 Inch) external-link
  • HTML
  • Material Declaration external-link
  • HTML
  • Reliablity Data external-link
LT1372CS8#PBF 8-Lead SOIC (Narrow 0.15 Inch) external-link
  • HTML
  • Material Declaration external-link
  • HTML
  • Reliablity Data external-link
LT1372CS8#TRPBF 8-Lead SOIC (Narrow 0.15 Inch) external-link
  • HTML
  • Material Declaration external-link
  • HTML
  • Reliablity Data external-link
LT1372HVCN8#PBF 8-Lead PDIP (Narrow 0.3 Inch) external-link
  • HTML
  • Material Declaration external-link
  • HTML
  • Reliablity Data external-link
LT1372HVCS8#PBF 8-Lead SOIC (Narrow 0.15 Inch) external-link
  • HTML
  • Material Declaration external-link
  • HTML
  • Reliablity Data external-link
LT1372HVIN8#PBF 8-Lead PDIP (Narrow 0.3 Inch) external-link
  • HTML
  • Material Declaration external-link
  • HTML
  • Reliablity Data external-link
LT1372HVIS8#PBF 8-Lead SOIC (Narrow 0.15 Inch) external-link
  • HTML
  • Material Declaration external-link
  • HTML
  • Reliablity Data external-link
LT1372HVIS8#TRPBF 8-Lead SOIC (Narrow 0.15 Inch) external-link
  • HTML
  • Material Declaration external-link
  • HTML
  • Reliablity Data external-link
LT1372IN8#PBF 8-Lead PDIP (Narrow 0.3 Inch) external-link
  • HTML
  • Material Declaration external-link
  • HTML
  • Reliablity Data external-link
LT1372IS8#PBF 8-Lead SOIC (Narrow 0.15 Inch) external-link
  • HTML
  • Material Declaration external-link
  • HTML
  • Reliablity Data external-link
LT1372IS8#TRPBF 8-Lead SOIC (Narrow 0.15 Inch) external-link
  • HTML
  • Material Declaration external-link
  • HTML
  • Reliablity Data external-link

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Product Lifecycle

PCN

Oct 8, 2024

- 24_0234

Migrating Bottom Trace Code Marking to Top Side Laser Marking for PDIP Package

LT1372CN8#PBF

PRODUCTION

LT1372HVCN8#PBF

PRODUCTION

LT1372HVIN8#PBF

PRODUCTION

LT1372IN8#PBF

PRODUCTION

pdf

PCN24_0234_Form

external-icon

xls

Material_Report

Download

pdf

Marking Comparison

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Oct 11, 2022

- 22_0241

Epoxy Change from Henkel 8290 to 8290A for PDIP Package

LT1372CN8#PBF

PRODUCTION

LT1372HVCN8#PBF

PRODUCTION

LT1372HVIN8#PBF

PRODUCTION

LT1372IN8#PBF

PRODUCTION

pdf

PCN22_0241_Form

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xls

Material_Report

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pdf

Qualification Results Summary

external-icon

Aug 6, 2022

- 22_0172

Laser Top Mark Conversion for PDIP Packages Assembled in ADPG [PNG]

LT1372CN8#PBF

PRODUCTION

LT1372HVCN8#PBF

PRODUCTION

LT1372HVIN8#PBF

PRODUCTION

LT1372IN8#PBF

PRODUCTION

pdf

PCN22_0172_Form

external-icon

xls

Material_Report

Download

xlsm

Delta Qualification Matrix

Download

Nov 14, 2022

- 22_0254

Epoxy Change from Henkel 8290 to 8290A for 8-Lead SOIC Package (PCN part 1 of 2)

LT1372CS8#PBF

PRODUCTION

LT1372CS8#TRPBF

PRODUCTION

pdf

PCN22_0254_Form

external-icon

xls

Material_Report

Download

pdf

Qualification Results Summary

external-icon

xlsm

Delta Qualification Matrix

Download

Jun 11, 2021

- 21_0060

Laser Top Mark for 8SOICN Assembled in ADPG, UTL and CRM

LT1372CS8#PBF

PRODUCTION

LT1372CS8#TRPBF

PRODUCTION

LT1372HVCS8#PBF

PRODUCTION

LT1372HVIS8#PBF

PRODUCTION

LT1372HVIS8#TRPBF

PRODUCTION

LT1372IS8#PBF

PRODUCTION

LT1372IS8#TRPBF

PRODUCTION

pdf

PCN21_0060_Form

external-icon

xls

Material_Report

Download

xlsm

Delta Qualification Matrix

Download

Dec 14, 2023

- 22_0255

Epoxy Change from Henkel 8290 to 8290A for 8-Lead SOIC Package (PCN part 2 of 2)

LT1372HVCS8#PBF

PRODUCTION

LT1372HVIS8#PBF

PRODUCTION

LT1372HVIS8#TRPBF

PRODUCTION

LT1372IS8#PBF

PRODUCTION

LT1372IS8#TRPBF

PRODUCTION

pdf

PCN22_0255_Form

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xls

Material_Report

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pdf

Qualification Results Summary

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xlsm

Delta Qualification Matrix

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Part Models

Product Lifecycle

PCN

Oct 8, 2024

- 24_0234

arrow down

Migrating Bottom Trace Code Marking to Top Side Laser Marking for PDIP Package

LT1372CN8#PBF

PRODUCTION

LT1372HVCN8#PBF

PRODUCTION

LT1372HVIN8#PBF

PRODUCTION

LT1372IN8#PBF

PRODUCTION

pdf

PCN24_0234_Form

external-icon

xls

Material_Report

Download

pdf

Marking Comparison

external-icon
Oct 11, 2022

- 22_0241

arrow down

Epoxy Change from Henkel 8290 to 8290A for PDIP Package

LT1372CN8#PBF

PRODUCTION

LT1372HVCN8#PBF

PRODUCTION

LT1372HVIN8#PBF

PRODUCTION

LT1372IN8#PBF

PRODUCTION

pdf

PCN22_0241_Form

external-icon

xls

Material_Report

Download

pdf

Qualification Results Summary

external-icon
Aug 6, 2022

- 22_0172

arrow down

Laser Top Mark Conversion for PDIP Packages Assembled in ADPG [PNG]

LT1372CN8#PBF

PRODUCTION

LT1372HVCN8#PBF

PRODUCTION

LT1372HVIN8#PBF

PRODUCTION

LT1372IN8#PBF

PRODUCTION

pdf

PCN22_0172_Form

external-icon

xls

Material_Report

Download

xlsm

Delta Qualification Matrix

Download
Nov 14, 2022

- 22_0254

arrow down

Epoxy Change from Henkel 8290 to 8290A for 8-Lead SOIC Package (PCN part 1 of 2)

LT1372CS8#PBF

PRODUCTION

LT1372CS8#TRPBF

PRODUCTION

pdf

PCN22_0254_Form

external-icon

xls

Material_Report

Download

pdf

Qualification Results Summary

external-icon

xlsm

Delta Qualification Matrix

Download
Jun 11, 2021

- 21_0060

arrow down

Laser Top Mark for 8SOICN Assembled in ADPG, UTL and CRM

LT1372CS8#PBF

PRODUCTION

LT1372CS8#TRPBF

PRODUCTION

LT1372HVCS8#PBF

PRODUCTION

LT1372HVIS8#PBF

PRODUCTION

LT1372HVIS8#TRPBF

PRODUCTION

LT1372IS8#PBF

PRODUCTION

LT1372IS8#TRPBF

PRODUCTION

pdf

PCN21_0060_Form

external-icon

xls

Material_Report

Download

xlsm

Delta Qualification Matrix

Download
Dec 14, 2023

- 22_0255

arrow down

Epoxy Change from Henkel 8290 to 8290A for 8-Lead SOIC Package (PCN part 2 of 2)

LT1372HVCS8#PBF

PRODUCTION

LT1372HVIS8#PBF

PRODUCTION

LT1372HVIS8#TRPBF

PRODUCTION

LT1372IS8#PBF

PRODUCTION

LT1372IS8#TRPBF

PRODUCTION

pdf

PCN22_0255_Form

external-icon

xls

Material_Report

Download

pdf

Qualification Results Summary

external-icon

xlsm

Delta Qualification Matrix

Download

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Evaluation Kits 1

Evaluation Kits1

DC053A-A

LT1372CS8 | 500kHz DC/DC Converter with Shutdown and Synchronous, 5-11VIN, 12VOUT at 250mA

Tools & Simulations 1

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.

To launch ready-to-run LTspice demonstration circuits for this part:

Step 1: Download and install LTspice on your computer.

Step 2: Click on the link in the section below to download a demonstration circuit.

Step 3: If LTspice does not automatically open after clicking the link below, you can instead run the simulation by right clicking on the link and selecting “Save Target As.” After saving the file to your computer, start LTspice and open the demonstration circuit by selecting ‘Open’ from the ‘File’ menu.

spice tool Lt Spice

LT1372 - Switching Regulators Download

2.15 K

spice tool Lt Spice

LT1372 Demo Circuit - 500kHz High Efficiency Boost Converter (5V to 12V @ .29A) Download

2.00K

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