Datasheet Texas Instruments LM2745

ManufacturerTexas Instruments
SeriesLM2745
Datasheet Texas Instruments LM2745

1-14V, Voltage Mode Synchronous Buck Controller with Pre-Bias Startup and Optional Clock Sync

Datasheets

LM2745/48 Synch Buck Controller w/ Pre-Bias Startup & Optional Clk Synch datasheet
PDF, 1.3 Mb, Revision: E, File published: Apr 3, 2013
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Prices

Status

LM2745MTC/NOPBLM2745MTCX/NOPB
Lifecycle StatusActive (Recommended for new designs)Active (Recommended for new designs)
Manufacture's Sample AvailabilityYesNo

Packaging

LM2745MTC/NOPBLM2745MTCX/NOPB
N12
Pin1414
Package TypePWPW
Industry STD TermTSSOPTSSOP
JEDEC CodeR-PDSO-GR-PDSO-G
Package QTY942500
CarrierTUBELARGE T&R
Device MarkingMTC2745
Width (mm)4.44.4
Length (mm)55
Thickness (mm)11
Pitch (mm).65.65
Max Height (mm)1.21.2
Mechanical DataDownloadDownload

Parametrics

Parameters / ModelsLM2745MTC/NOPB
LM2745MTC/NOPB
LM2745MTCX/NOPB
LM2745MTCX/NOPB
Control ModeVoltage ModeVoltage Mode
Duty Cycle(Max), %8686
Iout(Max), A2020
Iq(Typ), mA1.71.7
Number of Phases11
Operating Temperature Range, C-40 to 125-40 to 125
Package GroupTSSOPTSSOP
RatingCatalogCatalog
Regulated Outputs11
Special FeaturesEnable,Frequency Synchronization,Power Good,Pre-Bias Start-Up,Synchronous Rectification,TrackingEnable,Frequency Synchronization,Power Good,Pre-Bias Start-Up,Synchronous Rectification,Tracking
Switching Frequency(Max), kHz10001000
Switching Frequency(Min), kHz250250
TypeControllerController
Vin(Max), V1414
Vin(Min), V11
Vout(Max), V1212
Vout(Min), V0.60.6

Eco Plan

LM2745MTC/NOPBLM2745MTCX/NOPB
RoHSCompliantCompliant

Application Notes

  • Analyzing Power Modules
    PDF, 503 Kb, File published: Mar 22, 2007
  • AN-1603 LM274X Reference Designs (Rev. C)
    PDF, 222 Kb, Revision: C, File published: May 1, 2013
    This application note presents several reference designs that implement the LM274X synchronous buckcontroller. The designs address various applications in a wide variety of configurations. The designreference will give an engineer a head start on their project, with designs encompassing sequencing,tracking, synchronizing multiple power supplies, DDR termination, buck-boost, low PCB real esta
  • Current Limit Foldback Improves Short Circuit Protection in LM274X Family (Rev. B)
    PDF, 89 Kb, Revision: B, File published: Apr 23, 2013
    This application report discusses the function of the low side current limit used in the LM274X, andpresents a simple method to enhance the short-circuit protection. the current limit is required to protect thepower components from thermal stress, which can reduce life span. Typically, high side current limitdesigns require an internal rising edge blanking time or external filter to avoid no
  • Optmiz Pwr Cntrlr Dsigns thru Utiliz Freq & Sync, Ext Ref, Trking & Precis EN
    PDF, 359 Kb, File published: Apr 24, 2008
  • Reduce buck-converter EMI and voltage stress by minimizing inductive parasitics
    PDF, 926 Kb, File published: Jul 21, 2016

Model Line

Manufacturer's Classification

  • Semiconductors> Power Management> Non-isolated DC/DC Switching Regulator> Step-Down (Buck)> Buck Controller (External Switch)
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