Datasheet Linear Technology LTC3838-1 — 数据表

制造商Linear Technology
系列LTC3838-1

具有双路差分输出感应的双路,快速,准确的降压型DC / DC控制器

数据表

Datasheet LTC3838-1
PDF, 890 Kb, 语言: en, 文件上传: Sep 23, 2017, 页数: 54
Dual, Fast, Accurate Step-Down DC/DC Controller with Dual Differential Output Sensing
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价格

打包

LTC3838EUHF-1#PBFLTC3838EUHF-1#TRPBFLTC3838IUHF-1#PBFLTC3838IUHF-1#TRPBF
N1234
Package5x7 QFN-38
包装外形图
5x7 QFN-38
包装外形图
5x7 QFN-38
包装外形图
5x7 QFN-38
包装外形图
Package CodeUHFUHFUHFUHF
Package Index05-08-170105-08-170105-08-170105-08-1701
Pin Count38383838

参数化

Parameters / ModelsLTC3838EUHF-1#PBFLTC3838EUHF-1#TRPBFLTC3838IUHF-1#PBFLTC3838IUHF-1#TRPBF
ArchitectureControlled On-Time Valley Current ModeControlled On-Time Valley Current ModeControlled On-Time Valley Current ModeControlled On-Time Valley Current Mode
Demo BoardsDC1997A-ADC1997A-ADC1997A-ADC1997A-A
Design ToolsLTspice File,LTpowerCAD ModelLTspice File,LTpowerCAD ModelLTspice File,LTpowerCAD ModelLTspice File,LTpowerCAD Model
Export Controlnononono
FeaturesDifferential Remote Sense, External Synchronization, Resistor Set Frequency, DCR Current Sense, Power Good, TrackingDifferential Remote Sense, External Synchronization, Resistor Set Frequency, DCR Current Sense, Power Good, TrackingDifferential Remote Sense, External Synchronization, Resistor Set Frequency, DCR Current Sense, Power Good, TrackingDifferential Remote Sense, External Synchronization, Resistor Set Frequency, DCR Current Sense, Power Good, Tracking
Frequency, kHz2000200020002000
Frequency Adjust Range200kHz to 2MHz200kHz to 2MHz200kHz to 2MHz200kHz to 2MHz
Frequency Sync Range200kHz to 2MHz200kHz to 2MHz200kHz to 2MHz200kHz to 2MHz
Integrated Inductornononono
Ishutdown, µA15151515
Isupply, mA3333
Max Phases2222
Monolithicnononono
Number of Outputs2222
Operating Temperature Range, °C0 to 850 to 85-40 to 85-40 to 85
Output Current, A30303030
Output Current 2, A30303030
Polyphaseyesyesyesyes
Sense ResistorRsense, DCRRsense, DCRRsense, DCRRsense, DCR
Switch Current, A30303030
Switch Current 2, A30303030
Synchronousyesyesyesyes
TopologyBuckBuckBuckBuck
Topology 1BuckBuckBuckBuck
Topology 2BuckBuckBuckBuck
Vin Max, V38383838
Vin Min, V4.54.54.54.5
Vout Max, V5.55.55.55.5
Vout Maximum5.5V5.5V5.5V5.5V
Vout Min, V0.60.60.60.6
Vout Min 2, V0.60.60.60.6
Vref Accuracy Over Temp, %0.670.670.670.67

生态计划

LTC3838EUHF-1#PBFLTC3838EUHF-1#TRPBFLTC3838IUHF-1#PBFLTC3838IUHF-1#TRPBF
RoHSCompliantCompliantCompliantCompliant

应用须知

  • Modeling and Loop Compensation Design of Switching Mode Power Supplies &mdash AN149
    PDF, 1.4 Mb, 档案已发布: Mar 23, 2015
    从文件中提取

文章

  • Dual, Fast, Step-Down Controller's External Reference Input Enables Dynamic Voltage Scaling from 0.4V to 5.5V and 0.3% Total Combined Regulation Accuracy &mdash LT Journal
    PDF, 2.8 Mb, 档案已发布: Apr 10, 2013
    从文件中提取

模型线

制造商分类

  • Power Management > Switching Regulator > Step-Down (Buck) Regulators > Multiple Output Buck | External Power Switch Buck Controllers