Datasheet Texas Instruments LM3691

ManufacturerTexas Instruments
SeriesLM3691
Datasheet Texas Instruments LM3691

High Accuracy, Miniature 1A, Step-Down DC-DC Converter for Portable Applications

Datasheets

LM3691 High-Accuracy, Miniature 1-A Step-Down DC-DC Converter for Portable Applications datasheet
PDF, 2.9 Mb, Revision: J, File published: Dec 17, 2015
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Prices

Status

LM3691TL-0.75/NOPBLM3691TL-1.0/NOPBLM3691TL-1.2/NOPBLM3691TL-1.5/NOPBLM3691TL-1.8/NOPBLM3691TL-2.5/NOPBLM3691TL-3.3/NOPBLM3691TLX-1.0/NOPBLM3691TLX-1.2/NOPBLM3691TLX-1.5/NOPBLM3691TLX-1.8/NOPBLM3691TLX-2.5/NOPBLM3691TLX-3.3/NOPB
Lifecycle StatusActive (Recommended for new designs)Active (Recommended for new designs)Active (Recommended for new designs)Active (Recommended for new designs)Active (Recommended for new designs)Active (Recommended for new designs)Active (Recommended for new designs)Active (Recommended for new designs)Active (Recommended for new designs)Active (Recommended for new designs)Active (Recommended for new designs)Active (Recommended for new designs)Active (Recommended for new designs)
Manufacture's Sample AvailabilityNoYesYesNoYesNoYesNoNoYesYesYesNo

Packaging

LM3691TL-0.75/NOPBLM3691TL-1.0/NOPBLM3691TL-1.2/NOPBLM3691TL-1.5/NOPBLM3691TL-1.8/NOPBLM3691TL-2.5/NOPBLM3691TL-3.3/NOPBLM3691TLX-1.0/NOPBLM3691TLX-1.2/NOPBLM3691TLX-1.5/NOPBLM3691TLX-1.8/NOPBLM3691TLX-2.5/NOPBLM3691TLX-3.3/NOPB
N12345678910111213
Pin6666666666666
Package TypeYZRYZRYZRYZRYZRYZRYZRYZRYZRYZRYZRYZRYZR
Industry STD TermDSBGADSBGADSBGADSBGADSBGADSBGADSBGADSBGADSBGADSBGADSBGADSBGADSBGA
JEDEC CodeR-XBGA-NR-XBGA-NR-XBGA-NR-XBGA-NR-XBGA-NR-XBGA-NR-XBGA-NR-XBGA-NR-XBGA-NR-XBGA-NR-XBGA-NR-XBGA-NR-XBGA-N
Package QTY250250250250250250250300030003000300030003000
CarrierSMALL T&RSMALL T&RSMALL T&RSMALL T&RSMALL T&RSMALL T&RSMALL T&RLARGE T&RLARGE T&RLARGE T&RLARGE T&RLARGE T&RLARGE T&R
Device MarkingVFXYZ8TFXYZ8T
Width (mm)1.31.31.31.31.31.31.31.31.31.31.31.31.3
Length (mm)1.51.51.51.51.51.51.51.51.51.51.51.51.5
Thickness (mm).675.675.675.675.675.675.675.675.675.675.675.675.675
Pitch (mm).5.5.5.5.5.5.5.5.5.5.5.5.5
Max Height (mm).675.675.675.675.675.675.675.675.675.675.675.675.675
Mechanical DataDownloadDownloadDownloadDownloadDownloadDownloadDownloadDownloadDownloadDownloadDownloadDownloadDownload

Parametrics

Parameters / ModelsLM3691TL-0.75/NOPB
LM3691TL-0.75/NOPB
LM3691TL-1.0/NOPB
LM3691TL-1.0/NOPB
LM3691TL-1.2/NOPB
LM3691TL-1.2/NOPB
LM3691TL-1.5/NOPB
LM3691TL-1.5/NOPB
LM3691TL-1.8/NOPB
LM3691TL-1.8/NOPB
LM3691TL-2.5/NOPB
LM3691TL-2.5/NOPB
LM3691TL-3.3/NOPB
LM3691TL-3.3/NOPB
LM3691TLX-1.0/NOPB
LM3691TLX-1.0/NOPB
LM3691TLX-1.2/NOPB
LM3691TLX-1.2/NOPB
LM3691TLX-1.5/NOPB
LM3691TLX-1.5/NOPB
LM3691TLX-1.8/NOPB
LM3691TLX-1.8/NOPB
LM3691TLX-2.5/NOPB
LM3691TLX-2.5/NOPB
LM3691TLX-3.3/NOPB
LM3691TLX-3.3/NOPB
Control ModeVoltage ModeVoltage ModeVoltage ModeVoltage ModeVoltage ModeVoltage ModeVoltage ModeVoltage ModeVoltage ModeVoltage ModeVoltage ModeVoltage ModeVoltage Mode
Duty Cycle(Max), %100100100100100100100100100100100100100
Iout(Max), A1111111111111
Iq(Typ), mA0.0640.0640.0640.0640.0640.0640.0640.0640.0640.0640.0640.0640.064
Operating Temperature Range, C-30 to 85-30 to 85-30 to 85-30 to 85-30 to 85-30 to 85-30 to 85-30 to 85-30 to 85-30 to 85-30 to 85-30 to 85-30 to 85
Package GroupDSBGADSBGADSBGADSBGADSBGADSBGADSBGADSBGADSBGADSBGADSBGADSBGADSBGA
RatingCatalogCatalogCatalogCatalogCatalogCatalogCatalogCatalogCatalogCatalogCatalogCatalogCatalog
Regulated Outputs1111111111111
Special FeaturesEnable,Light Load Efficiency,Synchronous RectificationEnable,Light Load Efficiency,Synchronous RectificationEnable,Light Load Efficiency,Synchronous RectificationEnable,Light Load Efficiency,Synchronous RectificationEnable,Light Load Efficiency,Synchronous RectificationEnable,Light Load Efficiency,Synchronous RectificationEnable,Light Load Efficiency,Synchronous RectificationEnable,Light Load Efficiency,Synchronous RectificationEnable,Light Load Efficiency,Synchronous RectificationEnable,Light Load Efficiency,Synchronous RectificationEnable,Light Load Efficiency,Synchronous RectificationEnable,Light Load Efficiency,Synchronous RectificationEnable,Light Load Efficiency,Synchronous Rectification
Switching Frequency(Max), kHz4400440044004400440044004400440044004400440044004400
Switching Frequency(Min), kHz3600360036003600360036003600360036003600360036003600
TypeConverterConverterConverterConverterConverterConverterConverterConverterConverterConverterConverterConverterConverter
Vin(Max), V5.55.55.55.55.55.55.55.55.55.55.55.55.5
Vin(Min), V2.32.32.32.32.32.32.32.32.32.32.32.32.3
Vout(Max), V3.33.33.33.33.33.33.33.33.33.33.33.33.3
Vout(Min), V0.750.750.750.750.750.750.750.750.750.750.750.750.75

Eco Plan

LM3691TL-0.75/NOPBLM3691TL-1.0/NOPBLM3691TL-1.2/NOPBLM3691TL-1.5/NOPBLM3691TL-1.8/NOPBLM3691TL-2.5/NOPBLM3691TL-3.3/NOPBLM3691TLX-1.0/NOPBLM3691TLX-1.2/NOPBLM3691TLX-1.5/NOPBLM3691TLX-1.8/NOPBLM3691TLX-2.5/NOPBLM3691TLX-3.3/NOPB
RoHSCompliantCompliantCompliantCompliantCompliantCompliantCompliantCompliantCompliantCompliantCompliantCompliantCompliant

Application Notes

  • AN-643 EMI/RFI Board Design (Rev. B)
    PDF, 742 Kb, Revision: B, File published: May 3, 2004
    Application Note 643 EMI/RFI Board Design
  • Input and Output Capacitor Selection
    PDF, 219 Kb, File published: Sep 19, 2005
  • AN-2155 Layout Tips for EMI Reduction in DC/ DC Converters (Rev. A)
    PDF, 3.6 Mb, Revision: A, File published: Apr 23, 2013
    This application note will explore how the layout of your DC/DC power supply can significantly affect theamount of EMI that it produces. It will discuss several variations of a layout analyze the results andprovide answers to some common EMI questions such whether or not to use a shielded inductor.
  • AN-1566 Techniques for Thermal Analysis of Switching Power Supply Designs (Rev. A)
    PDF, 1.4 Mb, Revision: A, File published: Apr 23, 2013
    This application note provides thermal power analysis techniques for analyzing the power IC.
  • AN-1889 How to Measure the Loop Transfer Function of Power Supplies (Rev. A)
    PDF, 2.7 Mb, Revision: A, File published: Apr 23, 2013
    This application report shows how to measure the critical points of a bode plot with only an audiogenerator (or simple signal generator) and an oscilloscope. The method is explained in an easy to followstep-by-step manner so that a power supply designer can start performing these measurements in a shortamount of time.
  • Semiconductor and IC Package Thermal Metrics (Rev. C)
    PDF, 201 Kb, Revision: C, File published: Apr 19, 2016
  • AN-1149 Layout Guidelines for Switching Power Supplies (Rev. C)
    PDF, 82 Kb, Revision: C, File published: Apr 23, 2013
    When designing a high frequency switching regulated power supply layout is very important. Using agood layout can solve many problems associated with these types of supplies. The problems due to a badlayout are often seen at high current levels and are usually more obvious at large input to output voltagedifferentials. Some of the main problems are loss of regulation at high output current
  • AN-1229 SIMPLE SWITCHER PCB Layout Guidelines (Rev. C)
    PDF, 374 Kb, Revision: C, File published: Apr 23, 2013
    This application report provides SIMPLE SWITCHER™ PCB layout guidelines.
  • AN-2162 Simple Success With Conducted EMI From DC-DC Converters (Rev. C)
    PDF, 2.5 Mb, Revision: C, File published: Apr 24, 2013
    Electromagnetic Interference (EMI) is an unwanted effect between two electrical systems as a result ofeither electromagnetic radiation or electromagnetic conduction. EMI is the major adverse effect caused bythe application of switch-mode power supplies (SMPS). In switching power supplies EMI noise isunavoidable due to the switching actions of the semiconductor devices and resulting disconti
  • AN-1520 A Guide to Board Layout for Best Thermal Resistance for Exposed Packages (Rev. B)
    PDF, 9.2 Mb, Revision: B, File published: Apr 23, 2013
    This thermal application report provides guidelines for the optimal board layout to achieve the best thermalresistance for exposed packages. The thermal resistance between junction-to-ambient (ОёJA) is highlydependent on the PCB (Printed Circuit Board) design factors. This becomes more critical for packageshaving very low thermal resistance between junction-to-case such as exposed pad TSSOP

Model Line

Manufacturer's Classification

  • Semiconductors> Power Management> Non-isolated DC/DC Switching Regulator> Step-Down (Buck)> Buck Converter (Integrated Switch)
EMS supplier