Datasheet Texas Instruments LM27402 — 数据表

制造商Texas Instruments
系列LM27402
Datasheet Texas Instruments LM27402

具有DCR电流检测功能的3-20V电压模式同步降压控制器

数据表

LM27402 High-Performance Synchronous Buck Controller With DCR Current Sensing datasheet
PDF, 2.9 Mb, 修订版: J, 档案已发布: Jul 31, 2015
从文件中提取

价格

状态

LM27402MH/NOPBLM27402MHX/NOPBLM27402SQ/NOPBLM27402SQX/NOPB
Lifecycle StatusActive (Recommended for new designs)Active (Recommended for new designs)Active (Recommended for new designs)Active (Recommended for new designs)
Manufacture's Sample AvailabilityNoNoYesYes

打包

LM27402MH/NOPBLM27402MHX/NOPBLM27402SQ/NOPBLM27402SQX/NOPB
N1234
Pin16161616
Package TypePWPPWPRUMRUM
Industry STD TermHTSSOPHTSSOPWQFNWQFN
JEDEC CodeR-PDSO-GR-PDSO-GS-PQFP-NS-PQFP-N
Package QTY92250010004500
CarrierTUBELARGE T&RSMALL T&RLARGE T&R
Device MarkingL27402L2740227402S27402S
Width (mm)4.44.444
Length (mm)5544
Thickness (mm)11.75.75
Pitch (mm).65.65.65.65
Max Height (mm)1.21.2.8.8
Mechanical Data下载下载下载下载

参数化

Parameters / ModelsLM27402MH/NOPB
LM27402MH/NOPB
LM27402MHX/NOPB
LM27402MHX/NOPB
LM27402SQ/NOPB
LM27402SQ/NOPB
LM27402SQX/NOPB
LM27402SQX/NOPB
Control ModeVoltage ModeVoltage ModeVoltage ModeVoltage Mode
Duty Cycle(Max), %95959595
Iout(Max), A30303030
Iq(Typ), mA4.54.54.54.5
Number of Phases1111
Operating Temperature Range, C-40 to 125-40 to 125-40 to 125-40 to 125
Package GroupHTSSOPHTSSOPWQFNWQFN
RatingCatalogCatalogCatalogCatalog
Regulated Outputs1111
Special FeaturesEnable,Frequency Synchronization,Power Good,Pre-Bias Start-Up,Synchronous Rectification,TrackingEnable,Frequency Synchronization,Power Good,Pre-Bias Start-Up,Synchronous Rectification,TrackingEnable,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), kHz1200120012001200
Switching Frequency(Min), kHz200200200200
TypeControllerControllerControllerController
Vin(Max), V20202020
Vin(Min), V3333
Vout(Max), V18.618.618.618.6
Vout(Min), V0.60.60.60.6

生态计划

LM27402MH/NOPBLM27402MHX/NOPBLM27402SQ/NOPBLM27402SQX/NOPB
RoHSCompliantCompliantCompliantCompliant

应用须知

  • AN-2060 LM27402 Current Limit Application Circuits (Rev. A)
    PDF, 89 Kb, 修订版: A, 档案已发布: May 6, 2013
    Sensing the inductor DCR voltage can be an accurate and lossless technique of obtaining current information in DC/DC regulators. The absence of a series current sense resistor permits high current and high efficiency designs at a lower cost and higher density. Inductor DCR sensing also allows continuous monitoring of the inductor current as opposed to MOSFET RDS(ON) sensing that usually samples th
  • Reduce buck-converter EMI and voltage stress by minimizing inductive parasitics
    PDF, 926 Kb, 档案已发布: Jul 21, 2016

模型线

制造商分类

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