LTC2925
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LTC2925

Multiple Power Supply Tracking Controller with Power Good Timeout

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LTspice LT3050 - LDO Linear Regulators, LTC2925 - Sequencers, Trackers, and Margining Controllers Download 10.77 KB
Part Models 8
1ku List Price Starting From $4.99
Features
  • Flexible Power Supply Tracking Up and Down
  • Power Supply Sequencing
  • Supply Stability Is Not Affected
  • Controls Three Supplies Without Series FETs
  • Controls an Optional Fourth Supply with a Series FET
  • Electronic Circuit Breaker
  • Remote Sense Switch Compensates for Voltage Drop Across a Series FET
  • Supply Shutdown Outputs
  • FAULT Output
  • Adjustable Power Good Timeout
  • Available in Narrow 24-Lead SSOP and Tiny 24-Lead QFN Packages
Additional Details
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The LTC2925 provides a simple solution to power supply tracking and sequencing requirements. By selecting a few resistors, the supplies can be configured to ramp-up and ramp-down together or with voltage offsets, time delays or different ramp rates.

The LTC2925 controls the outputs of three independent supplies without inserting any pass element losses. For systems that require a fourth supply, or when a supply does not allow direct access to its feedback resistors, one supply can be controlled with a series FET. When the FET is used, an internal remote sense switch compensates for the voltage drop across the FET and current sense resistor, and an electronic circuit breaker provides protection from short-circuit conditions.

The LTC2925 also includes a power good timeout feature that turns off the supplies if an external supply monitor fails to indicate that the supplies have entered regulation within an adjustable time-out period.

Applications

  • VCORE and VI/O Supply Tracking
  • Microprocessor, DSP and FPGA Supplies
  • Servers
  • Communication Systems
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file View Data Sheet
Documentation View All Documentation
LTspice LT3050 - LDO Linear Regulators, LTC2925 - Sequencers, Trackers, and Margining Controllers Download 10.77 KB
Part Models 8
1ku List Price Starting From $4.99
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LTC2925

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Data Sheet

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UPDATED 06/13/2016
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LTC2925: Multiple Power Supply Tracking Controller with Power Good Timeout Data Sheet

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Reliability Data

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UPDATED 03/26/2018
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UPDATED 03/01/2006
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MOSFETs Make Sense for Tracking and Sequencing Power Supplies redirect icon

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Documentation

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
LTC2925CGN#PBF 24-Lead SSOP (Narrow 0.15 Inch) external-link
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  • Material Declaration external-link
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  • Reliablity Data external-link
LTC2925CGN#TRPBF 24-Lead SSOP (Narrow 0.15 Inch) external-link
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  • Material Declaration external-link
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  • Reliablity Data external-link
LTC2925CUF#PBF 24-Lead QFN (4mm x 4mm x 0.75mm w/ EP) external-link
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  • Material Declaration external-link
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  • Reliablity Data external-link
LTC2925CUF#TRPBF 24-Lead QFN (4mm x 4mm x 0.75mm w/ EP) external-link
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  • Material Declaration external-link
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  • Reliablity Data external-link
LTC2925IGN#PBF 24-Lead SSOP (Narrow 0.15 Inch) external-link
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  • Material Declaration external-link
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  • Reliablity Data external-link
LTC2925IGN#TRPBF 24-Lead SSOP (Narrow 0.15 Inch) external-link
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  • Material Declaration external-link
  • HTML
  • Reliablity Data external-link
LTC2925IUF#PBF 24-Lead QFN (4mm x 4mm x 0.75mm w/ EP) external-link
  • HTML
  • Material Declaration external-link
  • HTML
  • Reliablity Data external-link
LTC2925IUF#TRPBF 24-Lead QFN (4mm x 4mm x 0.75mm w/ EP) external-link
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  • Material Declaration external-link
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  • Reliablity Data external-link

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Aug 10, 2022

- 22_0177

Laser Top Mark Conversion for QSOP20_24_28 Assembled in ADPG [PNG] and UTL

LTC2925CGN#PBF

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LTC2925CGN#TRPBF

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LTC2925IGN#PBF

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LTC2925IGN#TRPBF

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PCN22_0177_Form

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Delta Qualification Matrix

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Jan 20, 2022

- 21_0269

Addition of Alternate Assembly Site ASE Taiwan for Select LFCSP Products

LTC2925CUF#PBF

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LTC2925CUF#TRPBF

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LTC2925IUF#PBF

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LTC2925IUF#TRPBF

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Detailed Change Description

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Qualification Results Summary

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Part Models

Product Lifecycle

PCN

Aug 10, 2022

- 22_0177

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Laser Top Mark Conversion for QSOP20_24_28 Assembled in ADPG [PNG] and UTL

LTC2925CGN#PBF

PRODUCTION

LTC2925CGN#TRPBF

PRODUCTION

LTC2925IGN#PBF

PRODUCTION

LTC2925IGN#TRPBF

PRODUCTION

pdf

PCN22_0177_Form

external-icon

xls

Material_Report

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xlsm

Delta Qualification Matrix

Download
Jan 20, 2022

- 21_0269

arrow down

Addition of Alternate Assembly Site ASE Taiwan for Select LFCSP Products

LTC2925CUF#PBF

PRODUCTION

LTC2925CUF#TRPBF

PRODUCTION

LTC2925IUF#PBF

PRODUCTION

LTC2925IUF#TRPBF

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pdf

PCN21_0269_Form

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xls

Material_Report

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pdf

Detailed Change Description

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pdf

Qualification Results Summary

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Software & Part Ecosystem

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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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LT3050 - LDO Linear Regulators, LTC2925 - Sequencers, Trackers, and Margining Controllers Download

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