Datasheet Texas Instruments LM27402SQ/NOPB — 数据表

制造商Texas Instruments
系列LM27402
零件号LM27402SQ/NOPB
Datasheet Texas Instruments LM27402SQ/NOPB

具有DCR电流检测功能的3-20V,电压模式同步降压控制器16-WQFN -40至125

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

Lifecycle StatusActive (Recommended for new designs)
Manufacture's Sample AvailabilityYes

打包

Pin16
Package TypeRUM
Industry STD TermWQFN
JEDEC CodeS-PQFP-N
Package QTY1000
CarrierSMALL T&R
Device Marking27402S
Width (mm)4
Length (mm)4
Thickness (mm).75
Pitch (mm).65
Max Height (mm).8
Mechanical Data下载

参数化

Control ModeVoltage Mode
Duty Cycle(Max)95 %
Iout(Max)30 A
Iq(Typ)4.5 mA
Number of Phases1
Operating Temperature Range-40 to 125 C
Package GroupWQFN
RatingCatalog
Regulated Outputs1
Special FeaturesEnable,Frequency Synchronization,Power Good,Pre-Bias Start-Up,Synchronous Rectification,Tracking
Switching Frequency(Max)1200 kHz
Switching Frequency(Min)200 kHz
TypeController
Vin(Max)20 V
Vin(Min)3 V
Vout(Max)18.6 V
Vout(Min)0.6 V

生态计划

RoHSCompliant

设计套件和评估模块

  • Evaluation Modules & Boards: LM27402POLMODULEVM
    LM27402 Evaluation Board
    Lifecycle Status: Preview (Device has been announced but is not in production. Samples may or may not be available)
  • Evaluation Modules & Boards: LM27402SQEVAL
    LM27402 Evaluation Board
    Lifecycle Status: Active (Recommended for new designs)

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)