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LT3071EUFD PDF预览

LT3071EUFD

更新时间: 2024-09-15 05:43:31
品牌 Logo 应用领域
凌特 - Linear 稳压器
页数 文件大小 规格书
28页 536K
描述
5A, Low Noise, Programmable Output, 85mV Dropout Linear Regulator with Analog Margining

LT3071EUFD 技术参数

是否Rohs认证: 不符合生命周期:Transferred
零件包装代码:QFN包装说明:5 X 4 MM, 0.75 MM HEIGHT, PLASTIC, MO-220, QFN-28
针数:28Reach Compliance Code:not_compliant
ECCN代码:EAR99HTS代码:8542.39.00.01
风险等级:5.24可调性:ADJUSTABLE
最大回动电压 1:0.15 V标称回动电压 1:0.085 V
JESD-30 代码:R-PQCC-N28JESD-609代码:e0
长度:5 mm最大电网调整率 (%/V):0.076
最大负载调整率 (%):1.63%功能数量:1
输出次数:1端子数量:28
工作温度TJ-Max:125 °C工作温度TJ-Min:-40 °C
最大输出电流 1:5 A最大输出电压 1:1.8 V
最小输出电压 1:0.8 V封装主体材料:PLASTIC/EPOXY
封装代码:HVQCCN封装等效代码:LCC28,.16X.2,20
封装形状:RECTANGULAR封装形式:CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE
认证状态:Not Qualified调节器类型:ADJUSTABLE POSITIVE SINGLE OUTPUT LDO REGULATOR
座面最大高度:0.8 mm子类别:Other Regulators
表面贴装:YES技术:BIPOLAR
端子面层:Tin/Lead (Sn/Pb)端子形式:NO LEAD
端子节距:0.5 mm端子位置:QUAD
宽度:4 mm

LT3071EUFD 数据手册

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LT3071  
5A, Low Noise,  
Programmable Output, 85mV  
Dropout Linear Regulator  
with Analog Margining  
FeAtures  
Description  
TheLT®3071isalowvoltage,UltraFast™transientre-  
sponseꢀlinearꢀregulator.ꢀTheꢀdeviceꢀsuppliesꢀupꢀtoꢀ5Aꢀofꢀ  
outputcurrentwithatypicaldropoutvoltageof85mV.ꢀ  
A0.01µFreferencebypasscapacitordecreasesoutputꢀ  
n
Output Current: 5A  
n
Dropout Voltage: 85mV Typical  
n
Digitally Programmable V : 0.8V to 1.8V  
OUT  
n
Analog Output Margining: 10ꢀ Range  
n
Low Output Noise: 25µV  
(10Hz to 100kHz)  
voltageꢀnoiseꢀtoꢀ25µV  
.ꢀTheꢀLT3071’sꢀhighꢀbandwidthꢀ  
RMS  
RMS  
n
n
n
n
n
Parallel Multiple Devices for 10A or More  
permitsꢀtheꢀuseꢀofꢀlowꢀESRꢀceramicꢀcapacitors,ꢀsavingꢀ  
bulkꢀcapacitanceꢀandꢀcost.ꢀTheꢀLT3071’sꢀfeaturesꢀmakeꢀ  
itꢀidealꢀforꢀhighꢀperformanceꢀFPGAs,ꢀmicroprocessorsꢀorꢀ  
sensitiveꢀcommunicationꢀsupplyꢀapplications.ꢀ  
Precision Current Limit: 20ꢀ  
ꢀ OutputꢀCurrentꢀMonitor:ꢀI  
ꢀ=ꢀI /2500  
MON OUT  
ꢀ 1ꢁꢀAccuracyꢀOverꢀLine,ꢀLoadꢀandꢀTemperature  
ꢀ StableꢀwithꢀLowꢀESRꢀCeramicꢀOutputꢀCapacitorsꢀ  
(15µFꢀMinimum)  
Outputꢀvoltageꢀisꢀdigitallyꢀselectableꢀinꢀ50mVꢀincrementsꢀ  
overꢀaꢀ0.8Vꢀtoꢀ1.8Vꢀrange.ꢀAnꢀanalogꢀmarginingꢀfunctionꢀ  
allowstheusertoadjustsystemoutputvoltageoveraꢀ  
continuousꢀ 10ꢁrange.TheICincorporatesauniqueꢀ  
trackingfunctiontocontrolabuckregulatorpoweringꢀ  
theꢀLT3071’sꢀinput.ꢀThisꢀtrackingꢀfunctionꢀdrivesꢀtheꢀbuckꢀ  
n
n
n
ꢀ HighꢀFrequencyꢀPSRR:ꢀ30dBꢀatꢀ1MHzꢀ  
ꢀ EnableꢀFunctionꢀTurnsꢀOutputꢀOn/Off  
ꢀ VIOCꢀPinꢀControlsꢀBuckꢀConverterꢀtoꢀMaintainꢀLowꢀ  
PowerꢀDissipationꢀandꢀOptimizeꢀEfficiency  
ꢀ PWRGD/UVLO/ThermalꢀShutdownꢀFlag  
ꢀ CurrentꢀLimitꢀwithꢀFoldbackꢀProtection  
ꢀ ThermalꢀShutdown  
n
n
n
n
regulatorꢀtoꢀmaintainꢀtheꢀLT3071’sꢀinputꢀvoltageꢀtoꢀV  
+ꢀ300mV,ꢀminimizingꢀpowerꢀdissipation.ꢀ  
OUT  
InternalprotectionincludesUVLO,reverse-currentprotec-  
ꢀ 28-Leadꢀ(4mmꢀ×ꢀ5mmꢀ×ꢀ0.75mm)ꢀQFNꢀPackage  
tion,ꢀprecisionꢀcurrentꢀlimitingꢀwithꢀpowerꢀfoldbackꢀandꢀ  
thermalꢀshutdown.ꢀTheꢀLT3071ꢀregulatorꢀisꢀavailableꢀinꢀaꢀ  
thermallyꢀenhancedꢀ28-lead,ꢀ4mmꢀ×ꢀ5mmꢀQFNꢀpackage.  
ApplicAtions  
n
ꢀ FPGAꢀandꢀDSPꢀSupplies  
L,ꢀLT,LTC,ꢀLTM,ꢀLinearꢀTechnologyꢀandꢀtheꢀLinearꢀlogoꢀareꢀregisteredꢀtrademarksꢀofꢀLinearꢀ  
TechnologyꢀCorporation.ꢀUltraFastꢀandꢀVLDOꢀareꢀtrademarksꢀofꢀLinearꢀTechnologyꢀCorporation.ꢀꢀ  
Allꢀotherꢀtrademarksꢀareꢀtheꢀpropertyꢀofꢀtheirꢀrespectiveꢀowners.ꢀPatentsꢀpending.  
n
ꢀ ASICꢀandꢀMicroprocessorꢀSupplies  
n
ꢀ ServersꢀandꢀStorageꢀDevices  
n
ꢀ PostꢀBuckꢀRegulationꢀandꢀSupplyꢀIsolation  
typicAl ApplicAtion  
Dropout Voltage  
150  
0.9V, 5A Regulator  
V
= V  
OUT(NOMINAL)  
IN  
50k  
V
BIAS  
2.2V TO 3.6V  
PWRGD  
120  
90  
60  
30  
0
2.2µF  
BIAS  
V
IN  
1.2V  
IN  
EN  
V
PWRGD  
SENSE  
V
BIAS  
= 1.8V  
= 3.3V  
330µF  
OUT  
V
0.9V  
5A  
OUT  
V
LT3071  
OUT  
O0  
2.2µF*  
4.7µF*  
10µF*  
V
O1  
V
O2  
V
V
= 0.8V  
= 2.5V  
OUT  
BIAS  
*X5R OR X7R CAPACITORS  
V
MON  
NC  
2V AT 5A  
MARGA  
VIOC  
I
MON  
FULL SCALE  
REF/BYP  
GND  
1k  
0
1
2
3
4
5
1nF  
0.01µF  
OUTPUT CURRENT (A)  
3071 TA01b  
3071 TA01a  
3071f  

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