Datasheet Texas Instruments LM25085SD/NOPB — 数据表

制造商Texas Instruments
系列LM25085
零件号LM25085SD/NOPB
Datasheet Texas Instruments LM25085SD/NOPB

4.5-42V宽输入电压,恒定导通时间非同步PFET降压控制器8-WSON -40至125

数据表

LM25085 / -Q1 42V Constant On-Time PFET Buck Switching Controller datasheet
PDF, 1.7 Mb, 修订版: J, 档案已发布: Nov 3, 2014
从文件中提取

价格

状态

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

打包

Pin8
Package TypeNGQ
Industry STD TermWSON
JEDEC CodeS-PDSO-N
Package QTY1000
CarrierSMALL T&R
Device MarkingL246B
Width (mm)3
Length (mm)3
Thickness (mm).8
Pitch (mm).5
Max Height (mm).8
Mechanical Data下载

参数化

Control ModeConstant on-time (COT)
Duty Cycle(Max)100 %
Iout(Max)10 A
Iq(Typ)1.25 mA
Number of Phases1
Operating Temperature Range-40 to 125 C
Package GroupWSON
RatingCatalog
Regulated Outputs1
Special FeaturesAdjustable Current Limit,Frequency Synchronization
Switching Frequency(Max)1000 kHz
Switching Frequency(Min)50 kHz
TypeController
Vin(Max)42 V
Vin(Min)4.5 V
Vout(Max)42 V
Vout(Min)1.25 V

生态计划

RoHSCompliant

设计套件和评估模块

  • Evaluation Modules & Boards: LM25085MYEVAL
    Evaluation Board for LM25085 - 42V Wide Vin Constant On-Time PFET Buck Switching Controller
    Lifecycle Status: Active (Recommended for new designs)

应用须知

  • Automated Frequency Response Analyzer
    PDF, 939 Kb, 档案已发布: Oct 9, 2013
    This application report discusses a new method of doing stability Analysis testing by using basic labequipment, while not requiring any specific instruments.
  • Constant Current Constant Voltage Buck Converter w/LM25085 (Rev. A)
    PDF, 377 Kb, 修订版: A, 档案已发布: Apr 23, 2013
    In many applications, a constant-current constant-voltage (CC/CV) dc source is needed. The I-Vcharacteristic of a constant-current constant-voltage (CC/CV) source is shown in Figure 1. This applicationreport presents an external op-amp based accurate current limit circuit suitable for CC/CV operation whenthe required constant current range is very narrow.
  • Transient Response versus Ripple – An Analysis of Ripple Injection Techniques
    PDF, 2.9 Mb, 档案已发布: Apr 28, 2014
    In this application note the implications of ripple injection techniques, aimed at minimizingoutput ripple voltage, on the transient response of a supply are highlighted. The results help choose a suitable ripple injection technique after striking a balance between the output ripple voltage and the transient response required by the load.

模型线

制造商分类

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