LT1575
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LT1575

Ultrafast Transient Response, Low Dropout Regulators Adjustable and Fixed

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warning : NOT RECOMMENDED FOR NEW DESIGNS tooltip
Part Details
Part Models 13
1ku List Price Starting From $2.95
Features
  • UltraFast Transient Response Eliminates Tantalum and Electrolytic Output Capacitors
  • FET RDS(ON) Defines Dropout Voltage
  • 1% Reference/Output Voltage Tolerance Temperature
  • Typical Load Regulation: 1mV
  • High Side Sense Current Limit
  • Multifunction Shutdown Pin with Latch off
Additional Details
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The LT1575/LT1577 are single/dual controller ICs that drive low cost external N-channel MOSFETs as source followers to produce ultrafast transient response, low dropout voltage regulators.

The LT1575/LT1577 achieve unprecedented transient-load performance by eliminating expensive tantalum or bulk electrolytic output capacitors in the most demanding modern microprocessor applications. Precision-trimmed adjustable and fixed output voltage versions accommodate any required microprocessor power supply voltage. Selection of the N-channel MOSFET RDS(ON) allows very low dropout voltages to be achieved.

Unique protection features include a high side current limit amplifier that activates a fault protection timer circuit. A multifunction Shutdown pin provides either current limit time-out with latch off, overvoltage protection, thermal shutdown or a combination of these functions. The LT1575 is available in 8-pin SO or PDIP and the LT1577 is available in 16-pin narrow body SO.

Applications

  • Pentium® Processor Supplies
  • PowerPC Supplies
  • 5V to 3.XXV or 3.3V to 2.XXV Microprocessor Supplies
  • GTL Termination
  • Low Voltage Logic Supplies
Part Models 13
1ku List Price Starting From $2.95

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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

LT1575CN8#PBF

PRODUCTION

LT1575CN8-1.5#PBF

PRODUCTION

LT1575CN8-2.8#PBF

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LT1575CN8-3.3#PBF

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LT1575CN8-3.5#PBF

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Aug 6, 2022

- 22_0172

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

LT1575CN8#PBF

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LT1575CN8-1.5#PBF

PRODUCTION

LT1575CN8-2.8#PBF

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LT1575CN8-3.3#PBF

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LT1575CN8-3.5#PBF

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LT1575CN8-5#PBF

PRODUCTION

Oct 12, 2022

- 22_0254

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

LT1575CS8#PBF

PRODUCTION

LT1575CS8#TRPBF

PRODUCTION

LT1575CS8-1.5#PBF

PRODUCTION

LT1575CS8-2.8#PBF

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LT1575CS8-3.3#PBF

PRODUCTION

LT1575CS8-3.5#PBF

PRODUCTION

LT1575CS8-5#PBF

PRODUCTION

Jun 11, 2021

- 21_0060

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

LT1575CS8#PBF

PRODUCTION

LT1575CS8#TRPBF

PRODUCTION

LT1575CS8-1.5#PBF

PRODUCTION

LT1575CS8-2.8#PBF

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Filter by Model

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Part Models

Product Lifecycle

PCN

Oct 11, 2022

- 22_0241

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Epoxy Change from Henkel 8290 to 8290A for PDIP Package

LT1575CN8#PBF

PRODUCTION

LT1575CN8-1.5#PBF

PRODUCTION

LT1575CN8-2.8#PBF

PRODUCTION

LT1575CN8-3.3#PBF

PRODUCTION

LT1575CN8-3.5#PBF

PRODUCTION

LT1575CN8-5#PBF

PRODUCTION

Aug 6, 2022

- 22_0172

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

LT1575CN8#PBF

PRODUCTION

LT1575CN8-1.5#PBF

PRODUCTION

LT1575CN8-2.8#PBF

PRODUCTION

LT1575CN8-3.3#PBF

PRODUCTION

LT1575CN8-3.5#PBF

PRODUCTION

LT1575CN8-5#PBF

PRODUCTION

Oct 12, 2022

- 22_0254

arrow down

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

LT1575CS8#PBF

PRODUCTION

LT1575CS8#TRPBF

PRODUCTION

LT1575CS8-1.5#PBF

PRODUCTION

LT1575CS8-2.8#PBF

PRODUCTION

LT1575CS8-3.3#PBF

PRODUCTION

LT1575CS8-3.5#PBF

PRODUCTION

LT1575CS8-5#PBF

PRODUCTION

Jun 11, 2021

- 21_0060

arrow down

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

LT1575CS8#PBF

PRODUCTION

LT1575CS8#TRPBF

PRODUCTION

LT1575CS8-1.5#PBF

PRODUCTION

LT1575CS8-2.8#PBF

PRODUCTION

LT1575CS8-3.3#PBF

PRODUCTION

LT1575CS8-3.5#PBF

PRODUCTION

LT1575CS8-5#PBF

PRODUCTION

Software & Part Ecosystem

Software & Part Ecosystem

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.

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