LTC2952
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LTC2952

Pushbutton PowerPath Controller with Supervisor

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LTspice LTC2952 - Supervisory Circuits, LT3010 - LDO Linear Regulators Download 4.28 KB
Part Models 8
1ku List Price Starting From $3.54
Features
  • Pushbutton On/Off Control
  • Automatic Low Loss Switchover Between DC Sources
  • Wide Operating Voltage Range: 2.7V to 28V
  • Low 25μA Shutdown Current
  • Guaranteed Threshold Accuracy: ±1.5% of Monitored Voltage Over Temperature
  • Adjustable Pushbutton On/Off Timers
  • Simple Interface Allows Graceful μP Shutdown
  • Extendable Housekeeping Wait Time Prior to Shutdown
  • 200ms Reset Delay and 1.6s Watchdog Timeout
  • ±8kV HBM ESD on PB Input
  • 20-pin TSSOP and QFN (4mm × 4mm) Packages
Additional Details
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The LTC2952 is a power management device that features three main functions: pushbutton on/off control of system power, ideal diode PowerPath™ controllers and system monitoring. The LTC2952’s pushbutton input, which provides on/off control of system power, has independently adjustable ON and OFF debounce times. A simple microprocessor interface involving an interrupt signal allows for proper system housekeeping prior to power-down.

The ideal diode PowerPath controllers provide automatic low loss switchover between two DC sources by regulating two external P-channel MOSFETs to have a small 20mV forward drop.

High reliability systems may utilize the LTC2952’s monitoring features to ensure system integrity. These features include: power-fail, voltage monitoring and μP watchdog.

The LTC2952 operates over a wide operating voltage range to accommodate a large variety of input power supplies. The part’s combination of low 20mV external MOSFET regulation and very low standby current matches battery powered and power conscious application requirements.

Applications

  • Desktop and Notebook Computers
  • Portable Instrumentations
  • Cell Phones, PDA and Handheld Computers
  • Servers and Computer Peripherals
  • Battery Backup Systems
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Documentation View All Documentation
LTspice LTC2952 - Supervisory Circuits, LT3010 - LDO Linear Regulators Download 4.28 KB
Part Models 8
1ku List Price Starting From $3.54
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LTC2952

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Data Sheet

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UPDATED 09/20/2011
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LTC2952: Pushbutton PowerPath Controller with Supervisor Data Sheet

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UPDATED 10/28/2011
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LTC2952: 監視機能付きプッシュボタン PowerPathコントローラ データシート

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Reliability Data

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UPDATED 03/26/2018
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User Guide

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DC1033B - Demo Manual redirect icon

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Documentation

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
LTC2952CF#PBF 20-Lead TSSOP external-link
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  • Material Declaration external-link
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  • Reliablity Data external-link
LTC2952CF#TRPBF 20-Lead TSSOP external-link
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  • Material Declaration external-link
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  • Reliablity Data external-link
LTC2952CUF#PBF 20-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
LTC2952CUF#TRPBF 20-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
LTC2952IF#PBF 20-Lead TSSOP external-link
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  • Material Declaration external-link
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  • Reliablity Data external-link
LTC2952IF#TRPBF 20-Lead TSSOP external-link
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  • Material Declaration external-link
  • HTML
  • Reliablity Data external-link
LTC2952IUF#PBF 20-Lead QFN (4mm x 4mm x 0.75mm w/ EP) external-link
  • HTML
  • Material Declaration external-link
  • HTML
  • Reliablity Data external-link
LTC2952IUF#TRPBF 20-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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Apr 6, 2022

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Laser Top Mark for ETSSOP and TSSOP Packages Assembled in ADPG [PNG] and UTL

LTC2952CF#PBF

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Delta Qualification Matrix

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Jan 20, 2022

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Addition of Alternate Assembly Site ASE Taiwan for Select LFCSP Products

LTC2952CUF#PBF

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LTC2952CUF#TRPBF

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LTC2952IUF#PBF

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LTC2952IUF#TRPBF

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Apr 6, 2022

- 22_0068

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Laser Top Mark for ETSSOP and TSSOP Packages Assembled in ADPG [PNG] and UTL

LTC2952CF#PBF

PRODUCTION

LTC2952CF#TRPBF

PRODUCTION

LTC2952IF#PBF

PRODUCTION

LTC2952IF#TRPBF

PRODUCTION

pdf

PCN22_0068_Form

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xls

Material_Report

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xlsm

Delta Qualification Matrix

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Jan 20, 2022

- 21_0269

arrow down

Addition of Alternate Assembly Site ASE Taiwan for Select LFCSP Products

LTC2952CUF#PBF

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LTC2952CUF#TRPBF

PRODUCTION

LTC2952IUF#PBF

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LTC2952IUF#TRPBF

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PCN21_0269_Form

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Material_Report

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Detailed Change Description

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Qualification Results Summary

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Software & Part Ecosystem

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Evaluation Kit

Evaluation Kits 1

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DC1033B

LTC2952 Demo Board | Push-Button Power Path Controller w/ Supervisor

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DC1033B

LTC2952 Demo Board | Push-Button Power Path Controller w/ Supervisor

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DC1033B
LTC2952 Demo Board | Push-Button Power Path Controller w/ Supervisor
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Product Detail

Demonstration circuit 1033B features the LTC2952, a micropower, multipurpose, pushbutton On/Off PowerPath™ controller that provides voltage monitoring and supervisory features, as well as ideal diode power paths. Selectable PowerPath management modes allow a variety of power on and off configurations, including pushbutton on/off control and voltage detection on/off control.


 


Resources

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DC1033B - Demo Manual Download

417.00K

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DC1033B - Design Files Download

933.00K

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DC1033B - Schematic Download

38.00K

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Evaluation Kits1

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DC1033B

LTC2952 Demo Board | Push-Button Power Path Controller w/ Supervisor
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.

spice tool Lt Spice

LTC2952 - Supervisory Circuits, LT3010 - LDO Linear Regulators Download

4.28 K

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