LT1372
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LT1372

500kHz and 1MHz High Efficiency 1.5A Switching Regulators

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Part Details
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
Part Models 11
1ku List Price Starting From $4.31

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Documentation

Documentation

Part Model Pin/Package Drawing Documentation CAD Symbols, Footprints, and 3D Models
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Product Lifecycle

PCN

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

Aug 6, 2022

- 22_0172

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

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PRODUCTION

Nov 14, 2022

- 22_0254

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

Jun 11, 2021

- 21_0060

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

LT1372CS8#PBF

PRODUCTION

LT1372CS8#TRPBF

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LT1372HVIS8#TRPBF

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LT1372IS8#PBF

PRODUCTION

LT1372IS8#TRPBF

PRODUCTION

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

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Filter by Model

reset

Reset Filters

Part Models

Product Lifecycle

PCN

Oct 11, 2022

- 22_0241

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Epoxy Change from Henkel 8290 to 8290A for PDIP Package

LT1372CN8#PBF

PRODUCTION

LT1372HVCN8#PBF

PRODUCTION

LT1372HVIN8#PBF

PRODUCTION

LT1372IN8#PBF

PRODUCTION

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

Nov 14, 2022

- 22_0254

arrow down

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

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

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

Software & Part Ecosystem

Software & Part Ecosystem

Evaluation Kit

Evaluation Kits 1

Tools & Simulations

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.

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