PMB4218GWP/B [ERICSSON]
DC-DC Regulated Power Supply Module, 1 Output, 28.8W, Hybrid, ROHS COMPLIANT, PACKAGE-10;
| 型号： | PMB4218GWP/B |
| 厂家： | 
ERICSSON |
| 描述： | DC-DC Regulated Power Supply Module, 1 Output, 28.8W, Hybrid, ROHS COMPLIANT, PACKAGE-10 |
| 文件： | 总29页 (文件大小：1528K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
PMBꢀ4518TꢀWP
DC/DCꢀregulator
Inputꢀ3.0ꢀ-ꢀ5.5ꢀV
Outputꢀ16ꢀAꢀ
Contents
ProductꢀProgramꢀ. . . . . . . . . . . . . . . . . . . . . . 2
MechanicalꢀDataꢀ. . . . . . . . . . . . . . . . . . . . . . 2
Connections ꢀ. . . . . . . . . . . . . . . . . . . . . . . . . 2
AbsoluteꢀMaximumꢀRatings ꢀ. . . . . . . . . . . . . 3
Inputꢀꢀ. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
ProductꢀQualificationꢀSpecificationꢀ. . . . . . . . 4
SafetyꢀSpecification ꢀ. . . . . . . . . . . . . . . . . . . 5
Adjustedꢀtoꢀ1.0ꢀVꢀoutꢀ-ꢀDataꢀ. . . . . . . . . . . . . 6
Adjustedꢀtoꢀ1.2ꢀVꢀoutꢀ-ꢀDataꢀ. . . . . . . . . . . . . 9
Adjustedꢀtoꢀ1.5ꢀVꢀoutꢀ-ꢀDataꢀ. . . . . . . . . . . . 12
Adjustedꢀtoꢀ1.8ꢀVꢀoutꢀ-ꢀDataꢀ. . . . . . . . . . . . 15
Adjustedꢀtoꢀ2.5ꢀVꢀoutꢀ-ꢀDataꢀ. . . . . . . . . . . . 18
Adjustedꢀtoꢀ3.3ꢀVꢀoutꢀ-ꢀDataꢀ. . . . . . . . . . . . 21
EMCꢀSpecification. . . . . . . . . . . . . . . . . . . . 24
OperatingꢀInformationꢀ. . . . . . . . . . . . . . . . . 24
ThermalꢀConsiderations ꢀ. . . . . . . . . . . . . . . 27
SolderingꢀInformationꢀ. . . . . . . . . . . . . . . . . 28
DeliveryꢀPackageꢀInformationꢀ. . . . . . . . . . . 28
Reliabilityꢀ. . . . . . . . . . . . . . . . . . . . . . . . . . . 28
CompatibilityꢀwithꢀRoHSꢀrequirementsꢀ. . . . 28
SalesꢀOfficesꢀandꢀContactꢀInformationꢀ. . . . 29
Key Features
•ꢀ Wideꢀinput,ꢀ3.0-5.5ꢀVdc
•ꢀ Programmableꢀoutput,ꢀ0.75ꢀ-ꢀ3.6ꢀVdc
•ꢀ Underꢀvoltageꢀprotection
•ꢀ Shortꢀcircuitꢀprotection
•ꢀ Remoteꢀsense
•ꢀ RemoteꢀOn/Off
•ꢀ DesignꢀforꢀEnvironmentꢀ(DfE)
•ꢀ EuropeanꢀCommissionꢀDirectiveꢀ2002/95/ECꢀꢀ
(RoHs)ꢀcompliant
TheꢀPMBꢀseriesꢀofꢀSILꢀDC/DCꢀregulatorsꢀ(POL)ꢀ
areꢀintendedꢀtoꢀbeꢀusedꢀasꢀlocalꢀdistributedꢀ
powerꢀsourcesꢀinꢀdistributedꢀpowerꢀarchitec-
tureꢀlevelꢀ4.ꢀꢀTheꢀsingleꢀin-lineꢀdesignꢀmakesꢀ
theꢀPMBꢀseriesꢀsuitableꢀforꢀapplicationsꢀwhereꢀ
boardspaceꢀisꢀlimited.ꢀTheꢀhighꢀefficiencyꢀandꢀ
highꢀreliabilityꢀofꢀtheꢀPMBꢀseriesꢀmakesꢀthemꢀ
particularlyꢀsuitedꢀforꢀtheꢀcommunicationsꢀ
equipmentꢀofꢀtodayꢀandꢀtomorrow.ꢀꢀ
Theseꢀproductsꢀareꢀmanufacturedꢀusingꢀtheꢀmostꢀ
advancedꢀtechnologiesꢀandꢀmaterialsꢀtoꢀcom-
plyꢀwithꢀenvironmentalꢀrequirements.ꢀDesignedꢀ
toꢀmeetꢀhighꢀreliabilityꢀrequirementsꢀofꢀsystemsꢀ
manufacturers,ꢀtheꢀPMBꢀrespondsꢀtoꢀworld-classꢀ
specifications.ꢀ
ꢀ
EricssonꢀPowerꢀModulesꢀisꢀanꢀISOꢀ9001/14001ꢀ
certifiedꢀsupplier.
E
Datasheet
Product Program
VO/IOꢀmax
Outputꢀ1
VI
POꢀmax
OrderingꢀNo.
Comment
3.0-5.5ꢀV*
3.0-5.5ꢀV
3.0-5.5ꢀV
3.0-5.5ꢀV
3.0-5.5ꢀV
3.0-5.5ꢀV
3.8-5.5ꢀV
0.8-3.6ꢀV/16ꢀA
52.8ꢀW
16.0ꢀW
19.2ꢀW
24.0ꢀW
28.8ꢀW
40.0ꢀW
52.8ꢀW
PMBꢀ4518TꢀWP
PMBꢀ4118NAꢀWP
PMBꢀ4118LAꢀWP
PMBꢀ4218HꢀWP
PMBꢀ4218GꢀWP
PMBꢀ4419ꢀWP
Standardꢀversion
Onꢀrequest
Onꢀrequest
Onꢀrequest
Onꢀrequest
Onꢀrequest
Onꢀrequest
1.0ꢀV/16ꢀA
1.2ꢀV/16ꢀA
1.5ꢀV/16ꢀA
1.8ꢀV/16ꢀA
2.5ꢀV/16ꢀA
3.3ꢀV/16ꢀA
PMBꢀ4510ꢀWP
Option
Suffix
P
Example
PositiveꢀRemoteꢀControlꢀlogic
PMBꢀ4518TꢀWPP
*ꢀInputꢀvoltageꢀlimitedꢀtoꢀ3.8-5.5Vꢀforꢀ3.3ꢀVoutꢀandꢀforꢀoutputꢀvoltagesꢀofꢀ3.3Vꢀandꢀ4.5-5.5ꢀforꢀoutputꢀvoltagesꢀaboveꢀ3.3V.
Ordering Information
Delivery option
M.o.q.
Suffix
Example
Tray
100ꢀpcs
/B
PMBꢀ4xxxTꢀWPꢀ/B
Mechanical Data
50,8 [2.00]
8,5 [0.33] max
1
choke
7,0 [0.27]
(1,27 [0.05])
2,54 [0.100] (7x)
35,56 [1.400]
48,26 [1.900]
51,80 [2.039]
48,26 [1.900]
1
1
2
3
4
5
6
7
8
9 10
E
Dimensions in mm [inch]
Recommended footprint (customer board), no components within border.
Holes: Ø1,0 [0.04] through plated holes with Ø1,5 [0.06] pads on both sides.
Tolerances (unless specified):
x,x +/-0,5 [0.02]
x,xx +/-0,25 [0.01]
Note 1: For other pin lengths, refer to Product program/Ordering information
ꢀ
ꢀꢀꢀꢀꢀꢀEN/LZTꢀ146ꢀ049ꢀR4Aꢀ©EricssonꢀPowerꢀModules,ꢀMarchꢀ2007
PMBꢀ4518TꢀWPꢀDatasheet
Weight
Connections
7.7gꢀ
Pin
1
Designation
Function
+ꢀOut
+ꢀOut
+ꢀSense
+ꢀOut
GND
GND
+ꢀIn
Positiveꢀoutput
Positiveꢀoutput
Positiveꢀsense
Positiveꢀoutput
Ground
Pins
2
Material:ꢀCopperꢀalloyꢀ
3
Plating:ꢀMatteꢀtinꢀoverꢀnickel
4
5
6
Ground
7
Positiveꢀinput
Positiveꢀinput
Outputꢀvoltageꢀadjust
Remoteꢀcontrol
8
+ꢀIn
9
Vadj
10
RC
Absolute Maximum Ratings
Characteristics
min
-45
typ
max
+115
+125
+5.5
Unit
˚C
T
OperatingꢀReferenceꢀTemperature,ꢀseeꢀpg.ꢀ27
Storageꢀtemperature
ref
S
T
-55
˚C
V
Inputꢀvoltage
-0.3
Vdc
I
StressꢀinꢀexcessꢀofꢀAbsoluteꢀMaximumꢀRatingsꢀmayꢀcauseꢀpermanentꢀdamage.ꢀ
AbsoluteꢀMaximumꢀRatings,ꢀsometimesꢀreferredꢀtoꢀasꢀnoꢀdestructionꢀlimits,ꢀareꢀ
normallyꢀtestedꢀwithꢀoneꢀparameterꢀatꢀaꢀtimeꢀexceedingꢀtheꢀlimitsꢀofꢀOutputꢀdataꢀ
orꢀElectricalꢀCharacteristics.ꢀIfꢀexposedꢀtoꢀstressꢀaboveꢀtheseꢀlimits,ꢀfunctionꢀandꢀ
performanceꢀmayꢀdegradeꢀinꢀanꢀunspecifiedꢀmanner.
T
ref = -30 ... +90 ˚C, VIꢀ=ꢀ3.0...5.5ꢀVꢀunlessꢀotherwiseꢀspecifiedꢀ
Input
Typꢀvaluesꢀspecifiedꢀat:ꢀTref = +25 ˚C, VInom,ꢀIomaxꢀ=ꢀ16ꢀA
Characteristics
Conditions
min
typ
max
Unit
Vdc
V
Inputꢀvoltageꢀrange
3.0
5.5
I
Rampꢀfromꢀhigherꢀvoltage,ꢀVoutꢀ=ꢀ1.0-ꢀ2.5ꢀV,ꢀVinꢀ=ꢀ3.3ꢀV
Rampꢀfromꢀhigherꢀvoltage,ꢀVoutꢀ=ꢀ3.3ꢀV,ꢀVinꢀ=ꢀ5.0ꢀV
Rampꢀfromꢀlowerꢀvoltage,ꢀVoutꢀ=ꢀ1.0-ꢀ2.5ꢀV,ꢀVinꢀ=ꢀ3.3ꢀV
Rampꢀfromꢀlowerꢀvoltage,ꢀVoutꢀ=ꢀ3.3ꢀV,ꢀVinꢀ=ꢀ5.0ꢀV
2.2
3.4
2.7
3.5
V
Turn-offꢀinputꢀvoltage
Vdc
Vdc
Ioff
V
Turn-onꢀinputꢀvoltage
Ion
C
Inputꢀcapacitance
20
µF
I
P
P
Inputꢀidlingꢀpower
I
=ꢀ0ꢀA,ꢀVIꢀ=ꢀ5ꢀV
oꢀ
680
7.5
mW
mW
mV
Ii
Inputꢀstand-byꢀpowerꢀ(RCꢀactive)
Inputꢀrippleꢀ1)
Nonꢀoperation,ꢀVIꢀ=ꢀ5ꢀV
RC
V ac
20ꢀHzꢀ...ꢀ5ꢀMHz,ꢀI max,ꢀVIꢀ=ꢀ5ꢀV
o
400
I
1)ꢀMeasuredꢀwithꢀꢀ2ꢀxꢀ22ꢀµFꢀceramicꢀcapacitors
ꢁ
ꢀꢀꢀꢀꢀꢀEN/LZTꢀ146ꢀ049ꢀR4Aꢀ©EricssonꢀPowerꢀModules,ꢀMarchꢀ2007
PMBꢀ4518TꢀWPꢀDatasheet
Fundamental Circuit Diagram
+OUT
+IN
+SENSE
GND
GND
Vadj
PWM
controller
Error
amplifier
Ref
RC
RC
Block
GND
GND
Product Qualification Specification
Characteristics
Frequencyꢀ
Accelerationꢀdensity
5ꢀ...ꢀ500ꢀHzꢀ
0.5ꢀg /Hz
RandomꢀVibration
IECꢀ60068-2-64
IECꢀ60068-2-27
IECꢀ60068-2-21ꢀUb
2
Mechanicalꢀshockꢀ
(halfꢀsinus)
Peakꢀaccelerationꢀ
Duration
50ꢀg
11ꢀms
Leadꢀintegrity
Simultaneousꢀbending
Allꢀleads
Temperatureꢀ
Numberꢀofꢀcycles
-40 ... +125 ˚C
300
Temperatureꢀcycling
JESD22-A104-B
G
Temperatureꢀ
Humidity
Duration
Bias
+85 ˚C
85ꢀ%ꢀRH
1000ꢀhours
maxꢀinputꢀvoltage
Acceleratedꢀdampꢀheatꢀ
Solderability
JESD22-A101-B
IECꢀ60068-2-54ꢀ
(AgedꢀaccordingꢀtoꢀJESD22-A101-
B,ꢀ240hꢀnoꢀbias)
Solderꢀimmersionꢀdepth
Timeꢀforꢀonsetꢀofꢀwetting
Wettingꢀforce
2ꢀmm
<ꢀ2.5ꢀs
>ꢀ200ꢀmN/m
Temperature
Duration
-45 ˚C
72ꢀh
Coldꢀ(inꢀoperation)
IECꢀ60068-2-1
Temperature
Duration
+125 ˚C
1000ꢀh
Highꢀtemperatureꢀstorage
JESD22-A103-BA
ꢂ
ꢀꢀꢀꢀꢀꢀEN/LZTꢀ146ꢀ049ꢀR4Aꢀ©EricssonꢀPowerꢀModules,ꢀMarchꢀ2007
PMBꢀ4518TꢀWPꢀDatasheet
Safety Specification
Generalꢀinformation.
IsolatedꢀDC/DCꢀconverters.
EricssonꢀPowerꢀModulesꢀDC/DCꢀconvertersꢀandꢀDC/DCꢀregulatorsꢀ
areꢀdesignedꢀinꢀaccordanceꢀwithꢀsafetyꢀstandardsꢀꢀ
IEC/EN/ULꢀ60ꢀ950, Safety of Information Technology Equipment.
Itꢀisꢀrecommendedꢀthatꢀaꢀfastꢀblowꢀfuseꢀwithꢀaꢀratingꢀ
twiceꢀtheꢀmaximumꢀinputꢀcurrentꢀperꢀselectedꢀproductꢀ
beꢀusedꢀatꢀtheꢀinputꢀofꢀeachꢀDC/DCꢀconverter.ꢀIfꢀanꢀinputꢀfilterꢀisꢀ
usedꢀinꢀtheꢀcircuitꢀtheꢀfuseꢀshouldꢀbeꢀplacedꢀinꢀfrontꢀofꢀtheꢀinputꢀ
filter.ꢀꢀ
IEC/EN/UL60950ꢀcontainsꢀrequirementsꢀtoꢀpreventꢀinjuryꢀorꢀ
damageꢀdueꢀtoꢀtheꢀfollowingꢀhazards:ꢀ
Inꢀtheꢀrareꢀeventꢀofꢀaꢀcomponentꢀproblemꢀinꢀtheꢀinputꢀfilterꢀorꢀinꢀtheꢀ
DC/DCꢀconverterꢀthatꢀimposesꢀaꢀshortꢀcircuitꢀonꢀtheꢀinputꢀsource,ꢀ
thisꢀfuseꢀwillꢀprovideꢀtheꢀfollowingꢀfunctions:ꢀ
ꢀ
•ꢀꢀElectrical shock
•ꢀꢀEnergy hazards
•ꢀꢀFire
•ꢀꢀIsolateꢀtheꢀfaultyꢀDC/DCꢀconverterꢀfromꢀtheꢀinputꢀpowerꢀsourceꢀ
soꢀasꢀnotꢀtoꢀaffectꢀtheꢀoperationꢀofꢀotherꢀpartsꢀofꢀtheꢀsystem.
•ꢀꢀMechanical and heat hazards
•ꢀꢀRadiation hazards
•ꢀꢀChemical hazards
•ꢀꢀProtectꢀtheꢀdistributionꢀwiringꢀfromꢀexcessiveꢀcurrentꢀandꢀpowerꢀ
lossꢀthusꢀpreventingꢀhazardousꢀoverheating.
Theꢀgalvanicꢀisolationꢀisꢀverifiedꢀinꢀanꢀelectricꢀstrengthꢀtest.ꢀꢀTheꢀtestꢀ
voltageꢀ(VISO)ꢀbetweenꢀinputꢀandꢀoutputꢀisꢀ1500ꢀVdcꢀorꢀ2250ꢀVdcꢀforꢀ
60ꢀsecondsꢀ(referꢀtoꢀproductꢀspecification).ꢀꢀLeakageꢀcurrentꢀisꢀlessꢀ
thanꢀ1µAꢀatꢀnominalꢀinputꢀvoltage.
On-boardꢀDC-DCꢀconvertersꢀareꢀdefinedꢀasꢀcomponentꢀpowerꢀ
supplies.ꢀAsꢀcomponentsꢀtheyꢀcannotꢀfullyꢀcomplyꢀwithꢀtheꢀ
provisionsꢀofꢀanyꢀSafetyꢀrequirementsꢀwithoutꢀ“Conditionsꢀofꢀ
Acceptability”.ꢀItꢀisꢀtheꢀresponsibilityꢀofꢀtheꢀinstallerꢀtoꢀensureꢀthatꢀ
theꢀfinalꢀproductꢀhousingꢀtheseꢀcomponentsꢀcompliesꢀwithꢀtheꢀ
requirementsꢀofꢀallꢀapplicableꢀSafetyꢀstandardsꢀandꢀDirectivesꢀforꢀ
theꢀfinalꢀproduct.
24ꢀVꢀdcꢀsystems.
TheꢀinputꢀvoltageꢀtoꢀtheꢀDC/DCꢀconverterꢀisꢀSELVꢀ(SafetyꢀExtraꢀLowꢀ
Voltage)ꢀandꢀtheꢀoutputꢀremainsꢀSELVꢀunderꢀnormalꢀandꢀabnormalꢀ
operatingꢀconditions.
Componentꢀpowerꢀsuppliesꢀforꢀgeneralꢀuseꢀshouldꢀcomplyꢀwithꢀ
theꢀrequirementsꢀinꢀIEC60950,ꢀEN60950ꢀandꢀUL60950ꢀ“Safetyꢀofꢀ
informationꢀtechnologyꢀequipment”.ꢀ
Thereꢀareꢀotherꢀmoreꢀproductꢀrelatedꢀstandards,ꢀe.g.ꢀ
IEC61204-7ꢀ“Safetyꢀstandardꢀforꢀpowerꢀsupplies",ꢀ
48ꢀandꢀ60ꢀVꢀdcꢀsystems.
IfꢀtheꢀinputꢀvoltageꢀtoꢀEricssonꢀPowerꢀModulesꢀDC/DCꢀconverterꢀ
isꢀ75ꢀVꢀdcꢀorꢀless,ꢀthenꢀtheꢀoutputꢀremainsꢀSELVꢀ(SafetyꢀExtraꢀLowꢀ
Voltage)ꢀunderꢀnormalꢀandꢀabnormalꢀoperatingꢀconditions.ꢀꢀ
ꢀ
Singleꢀfaultꢀtestingꢀinꢀtheꢀinputꢀpowerꢀsupplyꢀcircuitꢀshouldꢀbeꢀ
performedꢀwithꢀtheꢀDC/DCꢀconverterꢀconnectedꢀtoꢀdemonstrateꢀ
thatꢀtheꢀinputꢀvoltageꢀdoesꢀnotꢀexceedꢀ75ꢀVꢀdc.ꢀꢀ
IEEE802.3afꢀ“EthernetꢀLAN/MANꢀDataꢀterminalꢀequipmentꢀ
power”,ꢀandꢀETS300132-2ꢀ“Powerꢀsupplyꢀinterfaceꢀatꢀtheꢀinputꢀ
toꢀtelecommunicationsꢀequipment;ꢀpartꢀ2:ꢀDC”,ꢀbutꢀallꢀofꢀtheseꢀ
standardsꢀareꢀbasedꢀonꢀIEC/EN/UL60950ꢀwithꢀregardsꢀtoꢀsafety.
EricssonꢀPowerꢀModulesꢀDC/DCꢀconvertersꢀandꢀDC/DCꢀregulatorsꢀ
areꢀULꢀ60ꢀ950ꢀrecognizedꢀandꢀcertifiedꢀinꢀaccordanceꢀwithꢀENꢀ60ꢀ
950.
IfꢀtheꢀinputꢀpowerꢀsourceꢀcircuitꢀisꢀaꢀDCꢀpowerꢀsystem,ꢀtheꢀsourceꢀ
mayꢀbeꢀtreatedꢀasꢀaꢀTNV2ꢀcircuitꢀandꢀtestingꢀhasꢀdemonstratedꢀ
complianceꢀwithꢀSELVꢀlimitsꢀandꢀisolationꢀrequirementsꢀequivalentꢀ
toꢀBasicꢀInsulationꢀinꢀaccordanceꢀwithꢀIEC/EN/ULꢀ60ꢀ950.
Theꢀflammabilityꢀratingꢀforꢀallꢀconstructionꢀpartsꢀofꢀtheꢀproductsꢀ
meetsꢀULꢀ94V-0.
Theꢀproductsꢀshouldꢀbeꢀinstalledꢀinꢀtheꢀend-useꢀequipment,ꢀinꢀ
accordanceꢀwithꢀtheꢀrequirementsꢀofꢀtheꢀultimateꢀapplication.ꢀ
NormallyꢀtheꢀoutputꢀofꢀtheꢀDC/DCꢀconverterꢀisꢀconsideredꢀasꢀSELVꢀ
(SafetyꢀExtraꢀLowꢀVoltage)ꢀandꢀtheꢀinputꢀsourceꢀmustꢀbeꢀisolatedꢀbyꢀ
minimumꢀDoubleꢀorꢀReinforcedꢀInsulationꢀfromꢀtheꢀprimaryꢀcircuitꢀ
(ACꢀmains)ꢀinꢀaccordanceꢀwithꢀIEC/EN/ULꢀ60ꢀ950.
Non-isolatedꢀDC/DCꢀregulators.
TheꢀinputꢀvoltageꢀtoꢀtheꢀDC/DCꢀregulatorꢀisꢀSELVꢀ(SafetyꢀExtraꢀLowꢀ
Voltage)ꢀandꢀtheꢀoutputꢀremainsꢀSELVꢀunderꢀnormalꢀandꢀabnormalꢀ
operatingꢀconditions.ꢀ
Itꢀisꢀrecommendedꢀthatꢀaꢀslowꢀblowꢀfuseꢀwithꢀaꢀratingꢀ
twiceꢀtheꢀmaximumꢀinputꢀcurrentꢀperꢀselectedꢀproductꢀ
beꢀusedꢀatꢀtheꢀinputꢀofꢀeachꢀDC/DCꢀregulator.ꢀ
ꢃ
ꢀꢀꢀꢀꢀꢀEN/LZTꢀ146ꢀ049ꢀR4Aꢀ©EricssonꢀPowerꢀModules,ꢀMarchꢀ2007
PMBꢀ4518TꢀWPꢀDatasheet
Output
Adjusted to 1.0 V out - Data
Trefꢀ=ꢀ-30ꢀ...ꢀ+90ꢀ°C,ꢀVIꢀ=ꢀ3.0ꢀ...ꢀ5.5ꢀVꢀunlessꢀotherwiseꢀspecified.ꢀInputꢀfilterꢀ2ꢀxꢀ22ꢀµF,ꢀOutputꢀfilterꢀ1ꢀxꢀ150ꢀµFꢀ
Typꢀvaluesꢀspecifiedꢀat:ꢀTrefꢀ=ꢀ+25ꢀ°CꢀandꢀVInom.ꢀIOmaxꢀ=ꢀ16ꢀA.ꢀꢀNote:ꢀ+Senseꢀconnectedꢀtoꢀ+Out
Characteristics
Conditions
Unit
min
0.98
0.97
0.98
typ
max
1.02
1.03
1.02
T
refꢀ
=ꢀ+25ꢀ°C,ꢀVInom,ꢀIOmax,ꢀRadjꢀ80ꢀkΩ
VOi
Outputꢀvoltageꢀadjustedꢀsettingꢀ
1.00
V
Outputꢀvoltageꢀtoleranceꢀband
Idlingꢀvoltage
IOꢀ=ꢀ0.01...1.0ꢀxꢀIOmaxꢀ
IOꢀ=ꢀ0
V
V
VO
Lineꢀregulation
VIminꢀ...ꢀVImax,ꢀIOmax
11
10
mV
mV
Loadꢀregulation
IOꢀ=ꢀ0.01...1.0ꢀxꢀIOmax,ꢀVInom
Loadꢀtransientꢀ
voltageꢀdeviation
Vtr
Loadꢀstepꢀ=ꢀ0.25ꢀ...ꢀ0.75ꢀxꢀIOmax,ꢀ
dI/dtꢀ=ꢀ5ꢀA/µs,ꢀCOꢀ=ꢀ150ꢀµF,ꢀ
VIꢀ=ꢀ3.3ꢀV
100
mV
ttr
Loadꢀtransientꢀrecoveryꢀtime
Temperatureꢀcoefficient
60
0
µs
T
=ꢀ-30ꢀ...ꢀ+90ꢀ°C,ꢀIOmax
-0.1
+0.1
mV/°C
refꢀ
Tcoeff
FromꢀVI connectedꢀtoꢀVO =ꢀ0.9ꢀxꢀVOI
,ꢀ
ꢀ
ꢀ
ts
Start-upꢀtime
8.5
ms
IOꢀ=ꢀ0.1ꢀ...1.0ꢀxꢀIOmax,ꢀVInom
tr
Ramp-upꢀtime
0.1...0.9ꢀxꢀVO,ꢀIOꢀ=ꢀ0.1ꢀ...1.0ꢀxꢀIOmax,ꢀVInomꢀ
IOꢀ=ꢀIOmax,ꢀVInom
4
ms
ms
s
tr
Fallꢀtime,ꢀVOꢀxꢀ0.1
0.2
5
tr
Fallꢀtime,ꢀVOꢀxꢀ0.1
IOꢀ=ꢀ0ꢀA,ꢀVInom
tRCoff
tRCon
tRC
IO
RCꢀshut-downꢀtimeꢀtoꢀVOꢀxꢀ0.1
RCꢀstart-upꢀtimeꢀtoꢀVOꢀxꢀ0.9
RCꢀfallꢀtime,ꢀVOꢀxꢀ0.1ꢀ...ꢀ0.9
Outputꢀcurrent
IOꢀ=ꢀIOmax,ꢀVInom
0.2
8
ms
ms
s
IOꢀ=ꢀIOmax,ꢀVInom
IOꢀ=ꢀ0ꢀA,ꢀVInom
10
0
16
A
POmax Maxꢀoutputꢀpower
AtꢀVO =ꢀVOnomꢀ
16
22
W
ꢀ
Ilim
VOac
η
Currentꢀlimitꢀthreshold
Outputꢀripple
T
refꢀ
< Trefmax
28
35
20
A
ꢀ
20ꢀHzꢀ...ꢀ5ꢀMHz,ꢀIOmax
IOꢀ=ꢀ0.5ꢀxꢀIOmax,ꢀVIꢀ=ꢀ5ꢀV
IOꢀ=ꢀIOmax,ꢀVIꢀ=ꢀ5ꢀV
10
mVp-p
%
Efficiencyꢀ-ꢀ50%ꢀload
Efficiencyꢀ-ꢀ100%ꢀload
PowerꢀDissipation
Switchingꢀfrequency
Remoteꢀsenseꢀcurrent
Staticꢀinputꢀcurrent
87.2
83.4
3.1
300
η
81
%
P
IOꢀ=ꢀIOmax,ꢀVIꢀ=ꢀ5ꢀV
3.8
350
8
W
d
Fo
IOꢀ=ꢀ0ꢀ...ꢀ1.0ꢀxꢀIOmax
250
kHz
mA
A
Isense
II
VIꢀ=ꢀ3.0ꢀV,ꢀIOꢀ=ꢀIOmax,ꢀTrefꢀ=ꢀ25ꢀ°C
6.7
6
millionꢀ
hours
MTBF
Predictedꢀreliability
T
refꢀ
=ꢀ40ꢀ°C
ꢄ
ꢀꢀꢀꢀꢀꢀEN/LZTꢀ146ꢀ049ꢀR4Aꢀ©EricssonꢀPowerꢀModules,ꢀMarchꢀ2007
PMBꢀ4518TꢀWPꢀDatasheet
Adjusted to 1.0 V out - Typical Characteristics
Generalꢀconditions:ꢀInputꢀfilterꢀ2ꢀxꢀ22ꢀµF,ꢀOutputꢀfilterꢀ1ꢀxꢀ150ꢀµF
Efficiency
Power Dissipation
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Efficiencyꢀvs.ꢀloadꢀcurrentꢀandꢀinputꢀvoltageꢀatꢀTrefꢀ=ꢀ+25ꢀ°C
Dissipatedꢀpowerꢀvs.ꢀloadꢀcurrentꢀandꢀinputꢀvoltageꢀatꢀꢀ
refꢀ=ꢀ+25ꢀ°C
T
Output Current Derating at ꢃ V input
Output Current Derating at ꢁ.ꢁ V input
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Availableꢀloadꢀcurrentꢀvs.ꢀambientꢀairꢀtemperatureꢀandꢀ
airflowꢀatꢀVinꢀ=ꢀ5ꢀV.ꢀSeeꢀconditionsꢀonꢀpageꢀ27.
Availableꢀloadꢀcurrentꢀvs.ꢀambientꢀairꢀtemperatureꢀandꢀ
airflowꢀatꢀVinꢀ=ꢀ3.3ꢀV.ꢀSeeꢀconditionsꢀonꢀpageꢀ27.
Start-Up
Output Characteristics
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Start-upꢀatꢀIOꢀ=ꢀ16ꢀAꢀresistiveꢀloadꢀatꢀTrefꢀ=ꢀ+25ꢀ°C,ꢀꢀ
Vinꢀ=ꢀ3.3ꢀV.ꢀStartꢀenabledꢀbyꢀconnectingꢀVin.ꢀ
Topꢀtrace:ꢀoutputꢀvoltageꢀ(0.5ꢀV/div.).ꢀ
Bottomꢀtrace:ꢀinputꢀvoltageꢀ(2ꢀV/div.).ꢀ
Timeꢀscale:ꢀ2ꢀms/div.
Outputꢀvoltageꢀvs.ꢀloadꢀcurrent.ꢀ
ꢅ
ꢀꢀꢀꢀꢀꢀEN/LZTꢀ146ꢀ049ꢀR4Aꢀ©EricssonꢀPowerꢀModules,ꢀMarchꢀ2007
PMBꢀ4518TꢀWPꢀDatasheet
Adjusted to 1.0 V out - Typical Characteristics
Generalꢀconditions:ꢀInputꢀfilterꢀ2ꢀxꢀ22ꢀµF,ꢀOutputꢀfilterꢀ1ꢀxꢀ150ꢀµF
Output Ripple
Turn Off
Outputꢀvoltageꢀrippleꢀ(20mV/div.)ꢀatꢀTref=+25ꢀ°C,ꢀVin=3.3ꢀV,ꢀꢀ
Turn-offꢀatꢀIO=16ꢀAꢀresistiveꢀloadꢀatꢀTref=+25ꢀ°C,ꢀ
Vin=3.3ꢀV.ꢀTurn-offꢀenabledꢀbyꢀdisconnectingꢀVin.ꢀ
Topꢀtrace:ꢀoutputꢀvoltageꢀ(0.5ꢀV/div.).ꢀ
Bottomꢀtrace:ꢀinputꢀvoltageꢀ(2ꢀV/div.).ꢀ
Timeꢀscale:ꢀ2ꢀms/div.
IO=16ꢀAꢀresistiveꢀload.ꢀ
Bandꢀwidth=5MHz.ꢀ
Timeꢀscale:ꢀ2µsꢀ/ꢀdiv.
Transient with 1ꢃ0 µFꢀoutputꢀcapacitor
Transient with ꢁ00 µFꢀoutputꢀcapacitor
Outputꢀvoltageꢀresponseꢀtoꢀloadꢀcurrentꢀstep-changeꢀꢀ
(4-12-4ꢀA)ꢀatꢀTrefꢀ=+25ꢀ°C,ꢀVinꢀ=ꢀ3.3ꢀV.ꢀdI/dtꢀ=ꢀ5A/µsꢀ
Topꢀtrace:ꢀoutputꢀvoltageꢀ(ac)ꢀ(100ꢀmV/div.).ꢀ
Bottomꢀtrace:ꢀloadꢀcurrentꢀ(dc)ꢀ(10ꢀA/div.)ꢀ
Timeꢀscale:ꢀ0.1ꢀms/div.
Outputꢀvoltageꢀresponseꢀtoꢀloadꢀcurrentꢀstep-changeꢀꢀ
(4-12-4ꢀA)ꢀatꢀTrefꢀ=+25ꢀ°C,ꢀVinꢀ=ꢀ3.3ꢀV.ꢀdI/dtꢀ=ꢀ5A/µsꢀ
Topꢀtrace:ꢀoutputꢀvoltageꢀ(ac)ꢀ(100ꢀmV/div.).ꢀ
Bottomꢀtrace:ꢀloadꢀcurrentꢀ(dc)ꢀ(10ꢀA/div.)ꢀ
Timeꢀscale:ꢀ0.1ꢀms/div.
ꢆ
ꢀꢀꢀꢀꢀꢀEN/LZTꢀ146ꢀ049ꢀR4Aꢀ©EricssonꢀPowerꢀModules,ꢀMarchꢀ2007
PMBꢀ4518TꢀWPꢀDatasheet
Output
typ
Adjusted to 1.ꢀ V out - Data
Trefꢀ=ꢀ-30ꢀ...ꢀ+90ꢀ°C,ꢀVIꢀ=ꢀ3.0ꢀ...5.5ꢀVꢀunlessꢀotherwiseꢀspecified.ꢀInputꢀfilterꢀ2ꢀxꢀ22ꢀµF,ꢀOutputꢀfilterꢀ1ꢀxꢀ150ꢀµFꢀ
Typꢀvaluesꢀspecifiedꢀat:ꢀTrefꢀ=ꢀ+25ꢀ°CꢀandꢀVInom,ꢀIOmaxꢀ=ꢀ16ꢀA.ꢀꢀNote:ꢀ+Senseꢀconnectedꢀtoꢀ+Out
Characteristics
Conditions
Unit
min
max
1.224
1.236
1.22
T
refꢀ
=ꢀ+25ꢀ°C,ꢀVInom,ꢀIOmax,ꢀRadjꢀ42ꢀkΩ
VOi
Outputꢀvoltageꢀadjustedꢀsettingꢀ
1.176
1.164
1.18
1.20
V
Outputꢀvoltageꢀtoleranceꢀband
Idlingꢀvoltage
IOꢀ=ꢀ0.01...1.0ꢀxꢀIOmax
IOꢀ=ꢀ0
V
V
VO
Lineꢀregulation
VIminꢀ...ꢀVImax,ꢀIOmax
11
10
mV
mV
Loadꢀregulation
IOꢀ=ꢀ0.01...1.0ꢀxꢀIOmax,ꢀVInom
Loadꢀtransientꢀ
voltageꢀdeviation
Vtr
Loadꢀstepꢀ=ꢀ0.25ꢀ...ꢀ0.75ꢀxꢀIOmax,ꢀ
dI/dtꢀ=ꢀ5ꢀA/µs,ꢀCOꢀ=ꢀ150ꢀµF,ꢀ
VIꢀ=ꢀ3.3ꢀV
120
mV
ttr
Loadꢀtransientꢀrecoveryꢀtime
Temperatureꢀcoefficient
60
0
µs
T
=ꢀ-30ꢀ...ꢀ+90°C,ꢀIOmax
-0.1
+0.1
mV/°C
refꢀ
Tcoeff
FromꢀVI connectedꢀtoꢀVO =ꢀ0.9ꢀxꢀVOI
,ꢀ
ꢀ
ꢀ
ts
Start-upꢀtime
8.5
ms
IOꢀ=ꢀ0.1ꢀ...1.0ꢀxꢀIOmax,ꢀVInom
tr
Ramp-upꢀtime
0.1...0.9ꢀxꢀVO,ꢀIOꢀ=ꢀ0.1ꢀ...1.0ꢀxꢀIOmax,ꢀVInomꢀ
IOꢀ=ꢀIOmax,ꢀVInom
4
ms
ms
s
tr
Fallꢀtime,ꢀVOꢀxꢀ0.1
0.2
5
tr
Fallꢀtime,ꢀVOꢀxꢀ0.1
IOꢀ=ꢀ0ꢀA,ꢀVInom
tRCoff
tRCon
tRC
IO
RCꢀshut-downꢀtimeꢀtoꢀVOꢀxꢀ0.1
RCꢀstart-upꢀtimeꢀtoꢀVOꢀxꢀ0.9
RCꢀfallꢀtime,ꢀVOꢀxꢀ0.1ꢀ...ꢀ0.9
Outputꢀcurrent
IOꢀ=ꢀIOmax,ꢀVInom
0.2
8
ms
ms
s
IOꢀ=ꢀIOmax,ꢀVInom
IOꢀ=ꢀ0ꢀA,ꢀVInom
5
0
16
A
POmax Maxꢀoutputꢀpower
AtꢀVO =ꢀVOnomꢀ
19.2
22
W
ꢀ
Ilim
VOac
η
Currentꢀlimitꢀthreshold
Outputꢀripple
T
refꢀ
< Trefmax
28
35
20
A
ꢀ
20ꢀHzꢀ...ꢀ5ꢀMHz,ꢀIOmax
IOꢀ=ꢀ0.5ꢀxꢀIOmax,ꢀVIꢀ=ꢀ5ꢀV
IOꢀ=ꢀIOmax,ꢀVIꢀ=ꢀ5ꢀV
10
mVp-p
%
Efficiencyꢀ-ꢀ50%ꢀload
Efficiencyꢀ-ꢀ100%ꢀload
PowerꢀDissipation
Switchingꢀfrequency
Remoteꢀsenseꢀcurrent
Staticꢀinputꢀcurrent
89
η
82.7
260
85.1
3.3
300
%
P
IOꢀ=ꢀIOmax,ꢀVIꢀ=ꢀ5ꢀV
4.0
340
8
W
d
Fo
IOꢀ=ꢀ0ꢀ...ꢀ1.0ꢀxꢀIOmax
kHz
mA
A
Isense
II
VIꢀ=ꢀ3.0ꢀV,ꢀIOꢀ=ꢀIOmax,ꢀTrefꢀ=ꢀ25ꢀ°C
7.8
6
millionꢀ
hours
MTBF
Predictedꢀreliability
T
refꢀ
=ꢀ40ꢀ°C
ꢇ
ꢀꢀꢀꢀꢀꢀEN/LZTꢀ146ꢀ049ꢀR4Aꢀ©EricssonꢀPowerꢀModules,ꢀMarchꢀ2007
PMBꢀ4518TꢀWPꢀDatasheet
Adjusted to 1.ꢀ V - Typical Characteristics
Generalꢀconditions:ꢀInputꢀfilterꢀ2ꢀxꢀ22ꢀµF,ꢀOutputꢀfilterꢀ1ꢀxꢀ150ꢀµF
Efficiency
Power Dissipation
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Efficiencyꢀvs.ꢀloadꢀcurrentꢀandꢀinputꢀvoltageꢀatꢀTreꢀ=ꢀ+25ꢀ°C
Dissipatedꢀpowerꢀvs.ꢀloadꢀcurrentꢀandꢀinputꢀvoltageꢀatꢀꢀ
refꢀ=ꢀ+25ꢀ°C
T
Output Current Derating at ꢁ.ꢁ V input
Output Current Derating at ꢃ V input
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airflowꢀatꢀVinꢀ=ꢀ5ꢀV.ꢀSeeꢀconditionsꢀonꢀpageꢀ27.
Availableꢀloadꢀcurrentꢀvs.ꢀambientꢀairꢀtemperatureꢀandꢀ
airflowꢀatꢀVinꢀ=ꢀ3.3ꢀV.ꢀSeeꢀconditionsꢀonꢀpageꢀ27.
Start-Up
Output Characteristic
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Start-upꢀatꢀIOꢀ=ꢀ16ꢀAꢀresistiveꢀloadꢀatꢀTrefꢀ=ꢀ+25ꢀ°C,ꢀꢀ
Vinꢀ=ꢀ3.3ꢀV.ꢀStartꢀenabledꢀbyꢀconnectingꢀVin.ꢀ
Topꢀtrace:ꢀoutputꢀvoltageꢀ(0.5ꢀV/div.).ꢀ
Bottomꢀtrace:ꢀinputꢀvoltageꢀ(2ꢀV/div.).ꢀ
Timeꢀscale:ꢀ2ꢀms/div.
Outputꢀvoltageꢀvs.ꢀloadꢀcurrent.ꢀ
10
ꢀꢀꢀꢀꢀꢀEN/LZTꢀ146ꢀ049ꢀR4Aꢀ©EricssonꢀPowerꢀModules,ꢀMarchꢀ2007
PMBꢀ4518TꢀWPꢀDatasheet
Adjusted to 1.ꢀ V - Typical Characteristics
Generalꢀconditions:ꢀInputꢀfilterꢀ2ꢀxꢀ22ꢀµF,ꢀOutputꢀfilterꢀ1ꢀxꢀ150ꢀµF
Output Ripple
Turn Off
Outputꢀvoltageꢀrippleꢀ(20mV/div.)ꢀatꢀTref=+25ꢀ°C,ꢀVin=3.3ꢀV,ꢀꢀ
Turn-offꢀatꢀIO=16ꢀAꢀresistiveꢀloadꢀatꢀTref=+25ꢀ°C,ꢀ
Vin=3.3ꢀV.ꢀTurn-offꢀenabledꢀbyꢀdisconnectingꢀVin.ꢀ
Topꢀtrace:ꢀoutputꢀvoltageꢀ(0.5ꢀV/div.).ꢀ
Bottomꢀtrace:ꢀinputꢀvoltageꢀ(2ꢀV/div.).ꢀ
Timeꢀscale:ꢀ2ꢀms/div.
IO=16ꢀAꢀresistiveꢀload.ꢀ
Bandꢀwidth=5MHz.ꢀ
Timeꢀscale:ꢀ2µsꢀ/ꢀdiv.
Transient with 1ꢃ0 µFꢀoutputꢀcapacitor
Transient with ꢁ00 µFꢀoutputꢀcapacitor
Outputꢀvoltageꢀresponseꢀtoꢀloadꢀcurrentꢀstep-changeꢀ
(4-12-4ꢀA)ꢀatꢀTrefꢀ=+25ꢀ°C,ꢀVinꢀ=ꢀ3.3ꢀV.ꢀdI/dtꢀ=ꢀ5A/µsꢀ
Topꢀtrace:ꢀoutputꢀvoltageꢀ(ac)ꢀ(100ꢀmV/div.).ꢀ
Bottomꢀtrace:ꢀloadꢀcurrentꢀ(dc)ꢀ(10ꢀA/div.)ꢀ
Timeꢀscale:ꢀ0.1ꢀms/div.
Outputꢀvoltageꢀresponseꢀtoꢀloadꢀcurrentꢀstep-changeꢀꢀ
(4-12-4ꢀA)ꢀatꢀTrefꢀ=+25ꢀ°C,ꢀVinꢀ=ꢀ3.3ꢀV.ꢀdI/dtꢀ=ꢀ5A/µsꢀ
Topꢀtrace:ꢀoutputꢀvoltageꢀ(ac)ꢀ(100ꢀmV/div.).ꢀ
Bottomꢀtrace:ꢀloadꢀcurrentꢀ(dc)ꢀ(10ꢀA/div.)ꢀ
Timeꢀscale:ꢀ0.1ꢀms/div.
11
ꢀꢀꢀꢀꢀꢀEN/LZTꢀ146ꢀ049ꢀR4Aꢀ©EricssonꢀPowerꢀModules,ꢀMarchꢀ2007
PMBꢀ4518TꢀWPꢀDatasheet
Output
Adjusted to 1.ꢃ V out - Data
Trefꢀ=ꢀ-30ꢀ...ꢀ+90ꢀ°C,ꢀVIꢀ=ꢀ3.0ꢀ...5.5ꢀVꢀunlessꢀotherwiseꢀspecified.ꢀInputꢀfilterꢀ2ꢀxꢀ22ꢀµF,ꢀOutputꢀfilterꢀ1ꢀxꢀ150ꢀµFꢀ
Typꢀvaluesꢀspecifiedꢀat:ꢀTrefꢀ=ꢀ+25ꢀ°CꢀandꢀVInom.ꢀIOmaxꢀ=ꢀ16ꢀA.ꢀꢀNote:ꢀ+Senseꢀconnectedꢀtoꢀ+Out
Characteristics
Conditions
Unit
min
typ
1.5
max
1.53
T
refꢀ
=ꢀ+25ꢀ°C,ꢀVInom,ꢀIOmax,ꢀRadjꢀ23ꢀkΩ
VOi
Outputꢀvoltageꢀadjustedꢀsettingꢀ
1.47
1.455
1.48
V
Outputꢀvoltageꢀtoleranceꢀband
Idlingꢀvoltage
IOꢀ=ꢀ0.01...1.0ꢀxꢀIOmax
IOꢀ=ꢀ0
1.545
1.52
V
V
VO
Lineꢀregulation
VIminꢀ...ꢀVImax,ꢀIOmax
11
10
mV
mV
Loadꢀregulation
IOꢀ=ꢀ0.01...1.0ꢀxꢀIOmax,ꢀVInom
Loadꢀtransientꢀ
voltageꢀdeviation
Vtr
Loadꢀstepꢀ=ꢀ0.25ꢀ...ꢀ0.75ꢀxꢀIOmax,ꢀ
dI/dtꢀ=ꢀ5ꢀA/µs,ꢀCOꢀ=ꢀ150ꢀµF,ꢀ
VIꢀ=ꢀ3.3ꢀV
120
mV
ttr
Loadꢀtransientꢀrecoveryꢀtime
Temperatureꢀcoefficient
60
0
µs
T
=ꢀ-30ꢀ...ꢀ+90ꢀ°C,ꢀIOmax
-0.1
+0.1
mV/°C
refꢀ
Tcoeff
FromꢀVI connectedꢀtoꢀVO =ꢀ0.9ꢀxꢀVOI
,ꢀ
ꢀ
ꢀ
ts
Start-upꢀtime
8.5
ms
IOꢀ=ꢀ0.1ꢀ...1.0ꢀxꢀIOmax,ꢀVInom
tr
Ramp-upꢀtime
0.1...0.9ꢀxꢀVO,ꢀIOꢀ=ꢀ0.1ꢀ...1.0ꢀxꢀIOmax,ꢀVInomꢀ
IOꢀ=ꢀIOmax,ꢀVInom
4
ms
ms
s
tr
Fallꢀtime,ꢀVOꢀxꢀ0.1
0.2
5
tr
Fallꢀtime,ꢀVOꢀxꢀ0.1
IOꢀ=ꢀ0ꢀA,ꢀVInom
tRCoff
tRCon
tRC
IO
RCꢀshut-downꢀtimeꢀtoꢀVOꢀxꢀ0.1
RCꢀstart-upꢀtimeꢀtoꢀVOꢀxꢀ0.9
RCꢀfallꢀtime,ꢀVOꢀxꢀ0.1ꢀ...ꢀ0.9
Outputꢀcurrent
IOꢀ=ꢀIOmax,ꢀVInom
0.2
8
ms
ms
s
IOꢀ=ꢀIOmax,ꢀVInom
IOꢀ=ꢀ0ꢀA,ꢀVInom
5
0
16
A
POmax Maxꢀoutputꢀpower
AtꢀVO =ꢀVOnomꢀ
24
22
W
ꢀ
Ilim
VOac
η
Currentꢀlimitꢀthreshold
Outputꢀripple
T
refꢀ
< Trefmax
28
35
20
A
ꢀ
20Hzꢀ...ꢀ5MHz,ꢀIOmax
IOꢀ=ꢀ0.5ꢀxꢀIOmax,ꢀVIꢀ=ꢀ5ꢀV
IOꢀ=ꢀIOmax,ꢀVIꢀ=ꢀ5ꢀV
IOꢀ=ꢀIOmax,ꢀVIꢀ=ꢀ5ꢀV
IOꢀ=ꢀ0ꢀ...ꢀ1.0ꢀxꢀIOmax
10
mVp-p
%
Efficiencyꢀ-ꢀ50%ꢀload
Efficiencyꢀ-ꢀ100%ꢀload
PowerꢀDissipation
Switchingꢀfrequency
Remoteꢀsenseꢀcurrent
Staticꢀinputꢀcurrent
91
η
85.5
260
87.7
3.2
300
%
P
4.1
340
8
W
d
Fo
kHz
mA
A
Isense
II
VIꢀ=ꢀ3.0ꢀV,ꢀIOꢀ=ꢀIOmax,ꢀTrefꢀ=ꢀ25ꢀ°C
9.5
6
millionꢀ
hours
MTBF
Predictedꢀreliability
T
refꢀ
=ꢀ40ꢀ°C
1ꢀ
ꢀꢀꢀꢀꢀꢀEN/LZTꢀ146ꢀ049ꢀR4Aꢀ©EricssonꢀPowerꢀModules,ꢀMarchꢀ2007
PMBꢀ4518TꢀWPꢀDatasheet
Adjusted to 1.ꢃV out - Typical Characteristics
Generalꢀconditions:ꢀInputꢀfilterꢀ2ꢀxꢀ22ꢀµF,ꢀOutputꢀfilterꢀ1ꢀxꢀ150ꢀµF
Power Dissipation
Efficiency
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Availableꢀloadꢀcurrentꢀvs.ꢀambientꢀairꢀtemperatureꢀandꢀ
airflowꢀatꢀVinꢀ=ꢀ5ꢀV.ꢀSeeꢀconditionsꢀonꢀpageꢀ27.
Start-Up
Output Characteristic
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Start-upꢀatꢀIOꢀ=ꢀ16ꢀAꢀresistiveꢀloadꢀatꢀTrefꢀ=ꢀ+25ꢀ°C,ꢀꢀ
Vinꢀ=ꢀ3.3ꢀV.ꢀStartꢀenabledꢀbyꢀconnectingꢀVin.ꢀ
Topꢀtrace:ꢀoutputꢀvoltageꢀ(0.5ꢀV/div.).ꢀ
Bottomꢀtrace:ꢀinputꢀvoltageꢀ(2ꢀV/div.).ꢀ
Timeꢀscale:ꢀ2ꢀms/div.
Outputꢀvoltageꢀvs.ꢀloadꢀcurrent.ꢀ
1ꢁ
ꢀꢀꢀꢀꢀꢀEN/LZTꢀ146ꢀ049ꢀR4Aꢀ©EricssonꢀPowerꢀModules,ꢀMarchꢀ2007
PMBꢀ4518TꢀWPꢀDatasheet
Adjusted to 1.ꢃV out - Typical Characteristics
Generalꢀconditions:ꢀInputꢀfilterꢀ2ꢀxꢀ22ꢀµF,ꢀOutputꢀfilterꢀ1ꢀxꢀ150ꢀµF
Output Ripple
Turn Off
Outputꢀvoltageꢀrippleꢀ(20mV/div.)ꢀatꢀTref=+25ꢀ°C,ꢀVin=3.3ꢀV,ꢀꢀ
Turn-offꢀatꢀIO=16ꢀAꢀresistiveꢀloadꢀatꢀTref=+25ꢀ°C,ꢀ
Vin=3.3ꢀV.ꢀTurn-offꢀenabledꢀbyꢀdisconnectingꢀVin.ꢀ
Topꢀtrace:ꢀoutputꢀvoltageꢀ(0.5ꢀV/div.).ꢀ
Bottomꢀtrace:ꢀinputꢀvoltageꢀ(2ꢀV/div.).ꢀ
Timeꢀscale:ꢀ2ꢀms/div.
IO=16ꢀAꢀresistiveꢀload.ꢀ
Bandꢀwidth=5MHz.ꢀ
Timeꢀscale:ꢀ2µsꢀ/ꢀdiv.
Transient with 1ꢃ0 µFꢀoutputꢀcapacitor
Transient with ꢁ00 µFꢀoutputꢀcapacitor
Outputꢀvoltageꢀresponseꢀtoꢀloadꢀcurrentꢀstep-changeꢀꢀ
(4-12-4ꢀA)ꢀatꢀTrefꢀ=+25ꢀ°C,ꢀVinꢀ=ꢀ3.3ꢀV.ꢀdI/dtꢀ=ꢀ5A/µsꢀ
Topꢀtrace:ꢀoutputꢀvoltageꢀ(ac)ꢀ(100ꢀmV/div.).ꢀ
Bottomꢀtrace:ꢀloadꢀcurrentꢀ(dc)ꢀ(10ꢀA/div.)ꢀ
Timeꢀscale:ꢀ0.1ꢀms/div.
Outputꢀvoltageꢀresponseꢀtoꢀloadꢀcurrentꢀstep-changeꢀꢀ
(4-12-4ꢀA)ꢀatꢀTrefꢀ=+25ꢀ°C,ꢀVinꢀ=ꢀ3.3ꢀV.ꢀdI/dtꢀ=ꢀ5A/µsꢀ
Topꢀtrace:ꢀoutputꢀvoltageꢀ(ac)ꢀ(100ꢀmV/div.).ꢀ
Bottomꢀtrace:ꢀloadꢀcurrentꢀ(dc)ꢀ(10ꢀA/div.)ꢀ
Timeꢀscale:ꢀ0.1ꢀms/div.
1ꢂ
ꢀꢀꢀꢀꢀꢀEN/LZTꢀ146ꢀ049ꢀR4Aꢀ©EricssonꢀPowerꢀModules,ꢀMarchꢀ2007
PMBꢀ4518TꢀWPꢀDatasheet
Output
typ
Adjusted to 1.ꢆ V out - Data
Trefꢀ=ꢀ–30…+90ꢀ°C,ꢀVIꢀ=ꢀ3.0ꢀ...ꢀ5.5ꢀVꢀunlessꢀotherwiseꢀspecified.ꢀInputꢀfilterꢀ2ꢀxꢀ22ꢀµF,ꢀOutputꢀfilterꢀ1ꢀxꢀ150ꢀµFꢀ
Typꢀvaluesꢀspecifiedꢀat:ꢀTrefꢀ=ꢀ+25ꢀ°CꢀandꢀVInom.ꢀIOmaxꢀ=ꢀ16ꢀA.ꢀꢀNote:ꢀ+Senseꢀconnectedꢀtoꢀ+Out
Characteristics
Conditions
Unit
min
max
1.836
1.854
1.82
T
refꢀ
=ꢀ+25ꢀ°C,ꢀVInom,ꢀIOmax,ꢀRadjꢀ15ꢀkΩ
VOi
Outputꢀvoltageꢀadjustedꢀsettingꢀ
1.764
1.746
1.78
1.80
V
Outputꢀvoltageꢀtoleranceꢀband
Idlingꢀvoltage
IOꢀ=ꢀ0.01...1.0ꢀxꢀIOmax
IOꢀ=ꢀ0
V
V
VO
Lineꢀregulation
VIminꢀ...ꢀVImax,ꢀIOmax
11
10
mV
mV
Loadꢀregulation
IOꢀ=ꢀ0.01...1.0ꢀxꢀIOmax,ꢀVInom
Loadꢀtransientꢀ
voltageꢀdeviation
Vtr
Loadꢀstepꢀ=ꢀ0.25ꢀ...ꢀ0.75ꢀxꢀIOmax,ꢀ
dI/dtꢀ=ꢀ5ꢀA/µs,ꢀCOꢀ=ꢀ150ꢀµF,ꢀ
VIꢀ=ꢀ3.3ꢀV
110
mV
ttr
Loadꢀtransientꢀrecoveryꢀtime
Temperatureꢀcoefficient
60
0
µs
T
=ꢀ-30ꢀ...ꢀ+90ꢀ°C,ꢀIOmax
-0.1
+0.1
mV/°C
refꢀ
Tcoeff
FromꢀVI connectedꢀtoꢀVO =ꢀ0.9ꢀxꢀVOI
,ꢀ
ꢀ
ꢀ
ts
Start-upꢀtime
8.5
ms
IOꢀ=ꢀ0.1ꢀ...1.0ꢀxꢀIOmax,ꢀVInom
tr
Ramp-upꢀtime
0.1...0.9ꢀxꢀVO,ꢀIOꢀ=ꢀ0.1ꢀ...1.0ꢀxꢀIOmax,ꢀVInomꢀ
IOꢀ=ꢀIOmax,ꢀVInom
4
ms
ms
s
tr
Fallꢀtime,ꢀVOꢀxꢀ0.1
0.2
5
tr
Fallꢀtime,ꢀVOꢀxꢀ0.1
IOꢀ=ꢀ0ꢀA,ꢀVInom
tRCoff
tRCon
tRC
IO
RCꢀshut-downꢀtimeꢀtoꢀVOꢀxꢀ0.1
RCꢀstart-upꢀtimeꢀtoꢀVOꢀxꢀ0.9
RCꢀfallꢀtime,ꢀVOꢀxꢀ0.1ꢀ...ꢀ0.9
Outputꢀcurrent
IOꢀ=ꢀIOmax,ꢀVInom
0.2
8
ms
ms
s
IOꢀ=ꢀIOmax,ꢀVInom
IOꢀ=ꢀ0ꢀA,ꢀVInom
5
0
16
A
POmax Maxꢀoutputꢀpower
AtꢀVO =ꢀVOnomꢀ
28.8
22
W
ꢀ
Ilim
VOac
η
Currentꢀlimitꢀthreshold
Outputꢀripple
T
refꢀ
< Trefmax
28
35
24
A
ꢀ
20ꢀHzꢀ...ꢀ5ꢀMHz,ꢀIOmax
IOꢀ=ꢀ0.5ꢀxꢀIOmax,ꢀVIꢀ=ꢀ5ꢀV
IOꢀ=ꢀIOmax,ꢀVIꢀ=ꢀ5ꢀV
14
mVp-p
%
Efficiencyꢀ-ꢀ50%ꢀload
Efficiencyꢀ-ꢀ100%ꢀload
PowerꢀDissipation
Switchingꢀfrequency
Remoteꢀsenseꢀcurrent
Staticꢀinputꢀcurrent
92
η
88.5
260
89.8
3.3
300
%
P
IOꢀ=ꢀIOmax,ꢀVIꢀ=ꢀ5ꢀV
3.8
340
8
W
d
Fo
IOꢀ=ꢀ0ꢀ...ꢀ1.0ꢀxꢀIOmax
kHz
mA
A
Isense
II
VIꢀ=ꢀ3.0ꢀV,ꢀIOꢀ=ꢀIOmax,ꢀTrefꢀ=ꢀ25ꢀ°C
10.9
6
millionꢀ
hours
MTBF
Predictedꢀreliability
T
refꢀ
=ꢀ40ꢀ°C
1ꢃ
ꢀꢀꢀꢀꢀꢀEN/LZTꢀ146ꢀ049ꢀR4Aꢀ©EricssonꢀPowerꢀModules,ꢀMarchꢀ2007
PMBꢀ4518TꢀWPꢀDatasheet
Adjusted to 1.ꢆ V - Typical Characteristics
Generalꢀconditions:ꢀInputꢀfilterꢀ2ꢀxꢀ22ꢀµF,ꢀOutputꢀfilterꢀ1ꢀxꢀ150ꢀµF
Efficiency
Power Dissipation
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Availableꢀloadꢀcurrentꢀvs.ꢀambientꢀairꢀtemperatureꢀandꢀ
airflowꢀatꢀVinꢀ=ꢀ5ꢀV.ꢀSeeꢀconditionsꢀonꢀpageꢀ27.
Availableꢀloadꢀcurrentꢀvs.ꢀambientꢀairꢀtemperatureꢀandꢀ
airflowꢀatꢀVinꢀ=ꢀ3.3ꢀV.ꢀSeeꢀconditionsꢀonꢀpageꢀ27.
Start-Up
Output Characteristic
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Start-upꢀatꢀIOꢀ=ꢀ16ꢀAꢀresistiveꢀloadꢀatꢀTrefꢀ=ꢀ+25ꢀ°C,ꢀꢀ
Vinꢀ=ꢀ3.3ꢀV.ꢀStartꢀenabledꢀbyꢀconnectingꢀVin.ꢀ
Topꢀtrace:ꢀoutputꢀvoltageꢀ(0.5ꢀV/div.).ꢀ
Bottomꢀtrace:ꢀinputꢀvoltageꢀ(2ꢀV/div.).ꢀ
Timeꢀscale:ꢀ2ꢀms/div.
Outputꢀvoltageꢀvs.ꢀloadꢀcurrent.ꢀ
1ꢄ
ꢀꢀꢀꢀꢀꢀEN/LZTꢀ146ꢀ049ꢀR4Aꢀ©EricssonꢀPowerꢀModules,ꢀMarchꢀ2007
PMBꢀ4518TꢀWPꢀDatasheet
Adjusted to 1.ꢆ V out - Typical Characteristics
Generalꢀconditions:ꢀInputꢀfilterꢀ2ꢀxꢀ22ꢀµF,ꢀOutputꢀfilterꢀ1ꢀxꢀ150ꢀµF
Output Ripple
Turn Off
Outputꢀvoltageꢀrippleꢀ(20mV/div.)ꢀatꢀTref=+25ꢀ°C,ꢀVin=3.3ꢀV,ꢀꢀ
Turn-offꢀatꢀIO=16ꢀAꢀresistiveꢀloadꢀatꢀTref=+25ꢀ°C,ꢀ
Vin=3.3ꢀV.ꢀTurn-offꢀenabledꢀbyꢀdisconnectingꢀVin.ꢀ
Topꢀtrace:ꢀoutputꢀvoltageꢀ(0.5ꢀV/div.).ꢀ
Bottomꢀtrace:ꢀinputꢀvoltageꢀ(2ꢀV/div.).ꢀ
Timeꢀscale:ꢀ2ꢀms/div.
IO=16ꢀAꢀresistiveꢀload.ꢀ
Bandꢀwidth=5MHz.ꢀ
Timeꢀscale:ꢀ2µsꢀ/ꢀdiv.
Transient with 1ꢃ0 µFꢀoutputꢀcapacitor
Transient with ꢁ00 µFꢀoutputꢀcapacitor
Outputꢀvoltageꢀresponseꢀtoꢀloadꢀcurrentꢀstep-changeꢀꢀ
(4-12-4ꢀA)ꢀatꢀTrefꢀ=+25ꢀ°C,ꢀVinꢀ=ꢀ3.3ꢀV.ꢀdI/dtꢀ=ꢀ5A/µsꢀ
Topꢀtrace:ꢀoutputꢀvoltageꢀ(ac)ꢀ(100ꢀmV/div.).ꢀ
Bottomꢀtrace:ꢀloadꢀcurrentꢀ(dc)ꢀ(10ꢀA/div.)ꢀ
Timeꢀscale:ꢀ0.1ꢀms/div.
Outputꢀvoltageꢀresponseꢀtoꢀloadꢀcurrentꢀstep-changeꢀꢀ
(4-12-4ꢀA)ꢀatꢀTrefꢀ=+25ꢀ°C,ꢀVinꢀ=ꢀ3.3ꢀV.ꢀdI/dtꢀ=ꢀ5A/µsꢀ
Topꢀtrace:ꢀoutputꢀvoltageꢀ(ac)ꢀ(100ꢀmV/div.).ꢀ
Bottomꢀtrace:ꢀloadꢀcurrentꢀ(dc)ꢀ(10ꢀA/div.)ꢀ
Timeꢀscale:ꢀ0.1ꢀms/div.
1ꢅ
ꢀꢀꢀꢀꢀꢀEN/LZTꢀ146ꢀ049ꢀR4Aꢀ©EricssonꢀPowerꢀModules,ꢀMarchꢀ2007
PMBꢀ4518TꢀWPꢀDatasheet
Output
Adjusted to ꢀ.ꢃ V out - Data
Trefꢀ=ꢀ-30ꢀ...ꢀ+90ꢀ°C,ꢀVIꢀ=ꢀ3.0ꢀ...5.5ꢀVꢀunlessꢀotherwiseꢀspecified.ꢀInputꢀfilterꢀ2ꢀxꢀ22ꢀµF,ꢀOutputꢀfilterꢀ1ꢀxꢀ150ꢀµFꢀ
Typꢀvaluesꢀspecifiedꢀat:ꢀTrefꢀ=ꢀ+25ꢀ°CꢀandꢀVInom.ꢀIOmaxꢀ=ꢀ16ꢀA.ꢀꢀNote:ꢀ+Senseꢀconnectedꢀtoꢀ+Out
Characteristics
Conditions
Unit
min
typ
2.5
max
2.55
T
refꢀ
=ꢀ+25ꢀ°C,ꢀVInom,ꢀIOmax,ꢀRadjꢀ7ꢀkΩ
VOi
Outputꢀvoltageꢀadjustedꢀsettingꢀ
2.45
2.425
2.48
V
Outputꢀvoltageꢀtoleranceꢀband
Idlingꢀvoltage
IOꢀ=ꢀ0.01...1.0ꢀxꢀIOmax
IOꢀ=ꢀ0
2.575
2.52
V
V
VO
Lineꢀregulation
VIminꢀ...ꢀVImax,ꢀIOmax
11
10
mV
mV
Loadꢀregulation
IOꢀ=ꢀ0.01...1.0ꢀxꢀIOmax,ꢀVInom
Loadꢀtransientꢀ
voltageꢀdeviation
Vtr
Loadꢀstepꢀ=ꢀ0.25ꢀ...ꢀ0.75ꢀxꢀIOmax,ꢀ
dI/dtꢀ=ꢀ5ꢀA/µs,ꢀCOꢀ=ꢀ150ꢀµF,ꢀ
VIꢀ=ꢀ3.3ꢀV
160
mV
ttr
Loadꢀtransientꢀrecoveryꢀtime
Temperatureꢀcoefficient
60
0
µs
T
=ꢀ-30ꢀ...ꢀ+90ꢀ°C,ꢀIOmax
-0.1
+0.1
mV/°C
refꢀ
Tcoeff
FromꢀVI connectedꢀtoꢀVO =ꢀ0.9ꢀxꢀVOI
,ꢀ
ꢀ
ꢀ
ts
Start-upꢀtime
8.5
ms
IOꢀ=ꢀ0.1ꢀ...1.0ꢀxꢀIOmax,ꢀVInom
tr
Ramp-upꢀtime
0.1...0.9ꢀxꢀVO,ꢀIOꢀ=ꢀ0.1ꢀ...1.0ꢀxꢀIOmax,ꢀVInomꢀ
IOꢀ=ꢀIOmax,ꢀVInom
4
ms
ms
s
tr
Fallꢀtime,ꢀVOꢀxꢀ0.1
0.2
5
tr
Fallꢀtime,ꢀVOꢀxꢀ0.1
IOꢀ=ꢀ0ꢀA,ꢀVInom
tRCoff
tRCon
tRC
IO
RCꢀshut-downꢀtimeꢀtoꢀVOꢀxꢀ0.1
RCꢀstart-upꢀtimeꢀtoꢀVOꢀxꢀ0.9
RCꢀfallꢀtime,ꢀVOꢀxꢀ0.1ꢀ...ꢀ0.9
Outputꢀcurrent
IOꢀ=ꢀIOmax,ꢀVInom
0.2
8
ms
ms
s
IOꢀ=ꢀIOmax,ꢀVInom
IOꢀ=ꢀ0ꢀA,ꢀVInom
5
0
16
A
POmax Maxꢀoutputꢀpower
AtꢀVO =ꢀVOnomꢀ
40
22
W
ꢀ
Ilim
VOac
η
Currentꢀlimitꢀthreshold
Outputꢀripple
T
refꢀ
< Trefmax
28
35
35
A
ꢀ
20ꢀHzꢀ...ꢀ5ꢀMHz,ꢀIOmax
IOꢀ=ꢀ0.5ꢀxꢀIOmax,ꢀVIꢀ=ꢀ5ꢀV
IOꢀ=ꢀIOmax,ꢀVIꢀ=ꢀ5ꢀV
20
mVp-p
%
Efficiencyꢀ-ꢀ50%ꢀload
Efficiencyꢀ-ꢀ100%ꢀload
PowerꢀDissipation
Switchingꢀfrequency
Remoteꢀsenseꢀcurrent
Staticꢀinputꢀcurrent
94
η
90
92
%
P
IOꢀ=ꢀIOmax,ꢀVIꢀ=ꢀ5ꢀV
3.4
300
4.5
340
8
W
d
Fo
IOꢀ=ꢀ0ꢀ...ꢀ1.0ꢀxꢀIOmax
260
kHz
mA
A
Isense
II
VIꢀ=ꢀ3.0ꢀV,ꢀIOꢀ=ꢀIOmax,ꢀTrefꢀ=ꢀ25ꢀ°C
15.1
6
millionꢀ
hours
MTBF
Predictedꢀreliability
T
refꢀ
=ꢀ40ꢀ°C
1ꢆ
ꢀꢀꢀꢀꢀꢀEN/LZTꢀ146ꢀ049ꢀR4Aꢀ©EricssonꢀPowerꢀModules,ꢀMarchꢀ2007
PMBꢀ4518TꢀWPꢀDatasheet
Adjusted to ꢀ.ꢃ V out - Typical Characteristics
Generalꢀconditions:ꢀInputꢀfilterꢀ2ꢀxꢀ22ꢀµF,ꢀOutputꢀfilterꢀ1ꢀxꢀ150ꢀµF
Efficiency
Power Dissipation
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Efficiencyꢀvs.ꢀloadꢀcurrentꢀandꢀinputꢀvoltageꢀatꢀTrefꢀ=ꢀ+25ꢀ°C
Dissipatedꢀpowerꢀvs.ꢀloadꢀcurrentꢀandꢀinputꢀvoltageꢀatꢀꢀ
refꢀ=ꢀ+25ꢀ°C
T
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Availableꢀloadꢀcurrentꢀvs.ꢀambientꢀairꢀtemperatureꢀandꢀ
airflowꢀatꢀVinꢀ=ꢀ5ꢀV.ꢀSeeꢀconditionsꢀonꢀpageꢀ27.
Availableꢀloadꢀcurrentꢀvs.ꢀambientꢀairꢀtemperatureꢀandꢀ
airflowꢀatꢀVinꢀ=ꢀ3.3ꢀV.ꢀSeeꢀconditionsꢀonꢀpageꢀ27.
Start-Up
Output Characteristic
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Start-upꢀatꢀIOꢀ=ꢀ16ꢀAꢀresistiveꢀloadꢀatꢀTrefꢀ=ꢀ+25ꢀ°C,ꢀꢀ
Vinꢀ=ꢀ3.3ꢀV.ꢀStartꢀenabledꢀbyꢀconnectingꢀVin.ꢀ
Topꢀtrace:ꢀoutputꢀvoltageꢀ(1ꢀV/div.).ꢀ
Bottomꢀtrace:ꢀinputꢀvoltageꢀ(2ꢀV/div.).ꢀ
Timeꢀscale:ꢀ2ꢀms/div.
Outputꢀvoltageꢀvs.ꢀloadꢀcurrent.ꢀ
1ꢇ
ꢀꢀꢀꢀꢀꢀEN/LZTꢀ146ꢀ049ꢀR4Aꢀ©EricssonꢀPowerꢀModules,ꢀMarchꢀ2007
PMBꢀ4518TꢀWPꢀDatasheet
Adjusted to ꢀ.ꢃ V out - Typical Characteristics
Generalꢀconditions:ꢀInputꢀfilterꢀ2ꢀxꢀ22ꢀµF,ꢀOutputꢀfilterꢀ1ꢀxꢀ150ꢀµF
Output Ripple
Turn Off
Outputꢀvoltageꢀrippleꢀ(20mV/div.)ꢀatꢀTref=+25ꢀ°C,ꢀVin=3.3ꢀV,ꢀꢀ
Turn-offꢀatꢀIO=16ꢀAꢀresistiveꢀloadꢀatꢀTref=+25ꢀ°C,ꢀ
Vin=3.3ꢀV.ꢀTurn-offꢀenabledꢀbyꢀdisconnectingꢀVin.ꢀ
Topꢀtrace:ꢀoutputꢀvoltageꢀ(1ꢀV/div.).ꢀ
Bottomꢀtrace:ꢀinputꢀvoltageꢀ(2ꢀV/div.).ꢀ
Timeꢀscale:ꢀ2ꢀms/div.
IO=16ꢀAꢀresistiveꢀload.ꢀ
Bandꢀwidth=5MHz.ꢀ
Timeꢀscale:ꢀ2µsꢀ/ꢀdiv.
Transient with 1ꢃ0 µFꢀoutputꢀcapacitor
Transient with ꢁ00 µFꢀoutputꢀcapacitor
Outputꢀvoltageꢀresponseꢀtoꢀloadꢀcurrentꢀstep-changeꢀꢀ
(4-12-4ꢀA)ꢀatꢀTrefꢀ=+25ꢀ°C,ꢀVinꢀ=ꢀ3.3ꢀV.ꢀdI/dtꢀ=ꢀ5A/µsꢀ
Topꢀtrace:ꢀoutputꢀvoltageꢀ(ac)ꢀ(100ꢀmV/div.).ꢀ
Bottomꢀtrace:ꢀloadꢀcurrentꢀ(dc)ꢀ(10ꢀA/div.)ꢀ
Timeꢀscale:ꢀ0.1ꢀms/div.
Outputꢀvoltageꢀresponseꢀtoꢀloadꢀcurrentꢀstep-changeꢀꢀ
(4-12-4ꢀA)ꢀatꢀTrefꢀ=+25ꢀ°C,ꢀVinꢀ=ꢀ3.3ꢀV.ꢀdI/dtꢀ=ꢀ5A/µsꢀ
Topꢀtrace:ꢀoutputꢀvoltageꢀ(ac)ꢀ(100ꢀmV/div.).ꢀ
Bottomꢀtrace:ꢀloadꢀcurrentꢀ(dc)ꢀ(10ꢀA/div.)ꢀ
Timeꢀscale:ꢀ0.1ꢀms/div.
ꢀ0
ꢀꢀꢀꢀꢀꢀEN/LZTꢀ146ꢀ049ꢀR4Aꢀ©EricssonꢀPowerꢀModules,ꢀMarchꢀ2007
PMBꢀ4518TꢀWPꢀDatasheet
Output
typ
Adjusted to ꢁ.ꢁ V out - Data
Trefꢀ=ꢀ-30ꢀ...ꢀ+90ꢀ°C,ꢀVIꢀ=ꢀ3.8ꢀ...ꢀ5.5ꢀVꢀunlessꢀotherwiseꢀspecified.ꢀInputꢀfilterꢀ2ꢀxꢀ22ꢀµF,ꢀOutputꢀfilterꢀ1ꢀxꢀ150ꢀµFꢀ
Typꢀvaluesꢀspecifiedꢀat:ꢀTrefꢀ=ꢀ+25ꢀ°CꢀandꢀVIꢀ=ꢀ5.0ꢀV.ꢀIOmaxꢀ=ꢀ16ꢀA.ꢀꢀNote:ꢀ+Senseꢀconnectedꢀtoꢀ+Out
Characteristics
Conditions
Unit
min
max
3.366
3.399
3.32
T
refꢀ
=ꢀ+25ꢀ°C,ꢀVIꢀ>ꢀ3.8ꢀV,ꢀIOmax,ꢀRadjꢀ3.1ꢀkΩ
VOi
Outputꢀvoltageꢀadjustedꢀsettingꢀ
3.234
3.201
3.28
3.3
V
Outputꢀvoltageꢀtoleranceꢀband
Idlingꢀvoltage
IOꢀ=ꢀ0.1...1.0ꢀxꢀIOmaxꢀ
IOꢀ=ꢀ0
V
V
VO
Lineꢀregulation
VIꢀ=ꢀ5ꢀVꢀ...ꢀVImax,ꢀIOmax
11
20
mV
mV
Loadꢀregulation
IOꢀ=ꢀ0.01...1.0ꢀxꢀIOmax,ꢀVIꢀ=ꢀ5ꢀV
Loadꢀtransientꢀ
voltageꢀdeviation
Vtr
Loadꢀstepꢀ=ꢀ0.25ꢀ...ꢀ0.75ꢀxꢀIOmax,ꢀ
dI/dtꢀ=ꢀ5ꢀA/µs,ꢀCOꢀ=ꢀ150ꢀµF,ꢀ
VIꢀ=ꢀ5ꢀV
120
mV
ttr
Loadꢀtransientꢀrecoveryꢀtime
Temperatureꢀcoefficient
60
0
µs
T
=ꢀ-30ꢀ...ꢀ+90ꢀ°C,ꢀIOmax
-0.1
+0.1
mV/°C
refꢀ
Tcoeff
FromꢀVI connectedꢀtoꢀVO =ꢀ0.9ꢀxꢀVOadj
,ꢀ
ꢀ
ꢀ
ts
Start-upꢀtime
Ramp-upꢀtime
8.5
4
ms
ms
IOꢀ=ꢀ0.1ꢀ...1.0ꢀxꢀIOmax,ꢀVIꢀ=ꢀ5ꢀV
0.1...0.9ꢀxꢀVO,ꢀIOꢀ=ꢀ0.1ꢀ...1.0ꢀxꢀIOmax,ꢀ
VIꢀ=ꢀ5ꢀVꢀ
tr
tr
Fallꢀtime,ꢀVOꢀxꢀ0.1
IOꢀ=ꢀIOmax,ꢀVIꢀ=ꢀ5ꢀV
IOꢀ=ꢀ0ꢀA,ꢀVIꢀ=ꢀ5ꢀV
0.2
5
ms
s
tr
Fallꢀtime,ꢀVOꢀxꢀ0.1
tRCoff
tRCon
tRC
IO
RCꢀshut-downꢀtimeꢀtoꢀVOꢀxꢀ0.1
RCꢀstart-upꢀtimeꢀtoꢀVOꢀxꢀ0.9
RCꢀfallꢀtime,ꢀVOꢀxꢀ0.1ꢀ...ꢀ0.9
Outputꢀcurrent
IOꢀ=ꢀIOmax,ꢀVIꢀ=ꢀ5ꢀVꢀ
IOꢀ=ꢀIOmax,ꢀVIꢀ=ꢀ5ꢀV
IOꢀ=ꢀ0ꢀA,ꢀVIꢀ=ꢀ5ꢀV
0.2
8
ms
ms
s
5
0
16
A
POmax Maxꢀoutputꢀpower
AtꢀVO =ꢀVOnomꢀ
52.8
22
W
ꢀ
Ilim
VOac
η
Currentꢀlimitꢀthreshold
Outputꢀripple
T
refꢀ
< Trefmax
25
35
40
A
ꢀ
20ꢀHzꢀ...ꢀ5ꢀMHz,ꢀIOmax
IOꢀ=ꢀ0.5ꢀxꢀIOmax,ꢀVIꢀ=ꢀ5ꢀV
IOꢀ=ꢀIOmax,ꢀVIꢀ=ꢀ5ꢀV
25
mVp-p
%
Efficiencyꢀ-ꢀ50%ꢀload
Efficiencyꢀ-ꢀ100%ꢀload
PowerꢀDissipation
Switchingꢀfrequency
Remoteꢀsenseꢀcurrent
Staticꢀinputꢀcurrent
95.4
94
η
92
%
P
IOꢀ=ꢀIOmax,ꢀVIꢀ=ꢀ5ꢀV
3.2
300
4.6
340
8
W
d
Fo
IOꢀ=ꢀ0ꢀ...ꢀ1.0ꢀxꢀIOmax
260
kHz
mA
A
Isense
II
VIꢀ=ꢀ3.8ꢀV,ꢀIOꢀ=ꢀIOmax,ꢀTrefꢀ=ꢀ25ꢀ°C
15.0
6
millionꢀ
hours
MTBF
Predictedꢀreliability
T
refꢀ
=ꢀ40ꢀ°C
ꢀ1
ꢀꢀꢀꢀꢀꢀEN/LZTꢀ146ꢀ049ꢀR4Aꢀ©EricssonꢀPowerꢀModules,ꢀMarchꢀ2007
PMBꢀ4518TꢀWPꢀDatasheet
Adjusted to ꢁ.ꢁ V out - Typical Characteristics
Generalꢀconditions:ꢀInputꢀfilterꢀ2ꢀxꢀ22ꢀµF,ꢀOutputꢀfilterꢀ1ꢀxꢀ150ꢀµFꢀ
Efficiency
Power Dissipation
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Availableꢀloadꢀcurrentꢀvs.ꢀambientꢀairꢀtemperatureꢀandꢀ
airflowꢀatꢀVinꢀ=ꢀ5ꢀV.ꢀSeeꢀconditionsꢀonꢀpageꢀ27.
Outputꢀvoltageꢀvs.ꢀloadꢀcurrent.ꢀ
Start-Up
Turn Off
Turn-offꢀatꢀIO=16ꢀAꢀresistiveꢀloadꢀatꢀTref=+25ꢀ°C,ꢀꢀ
Vinꢀ=ꢀ5ꢀV.ꢀTurn-offꢀenabledꢀbyꢀdisconnectingꢀVin.ꢀ
Topꢀtrace:ꢀoutputꢀvoltageꢀ(1ꢀV/div.).ꢀ
Bottomꢀtrace:ꢀinputꢀvoltageꢀ(2ꢀV/div.).ꢀ
Timeꢀscale:ꢀ2ꢀms/div.
Start-upꢀatꢀIOꢀ=ꢀ16ꢀAꢀresistiveꢀloadꢀatꢀTrefꢀ=ꢀ+25ꢀ°C,ꢀꢀ
Vinꢀ=ꢀ5ꢀV.ꢀStartꢀenabledꢀbyꢀconnectingꢀVin.ꢀ
Topꢀtrace:ꢀoutputꢀvoltageꢀ(1ꢀV/div.).ꢀ
Bottomꢀtrace:ꢀinputꢀvoltageꢀ(2ꢀV/div.).ꢀ
Timeꢀscale:ꢀ2ꢀms/div.
ꢀꢀ
ꢀꢀꢀꢀꢀꢀEN/LZTꢀ146ꢀ049ꢀR4Aꢀ©EricssonꢀPowerꢀModules,ꢀMarchꢀ2007
PMBꢀ4518TꢀWPꢀDatasheet
Adjusted to ꢁ.ꢁ V out - Typical Characteristics
Generalꢀconditions:ꢀInputꢀfilterꢀ2ꢀxꢀ22ꢀµF,ꢀOutputꢀfilterꢀ1ꢀxꢀ150ꢀµF
Output Ripple
Transient with 1ꢃ0 µFꢀoutputꢀcapacitor
Outputꢀvoltageꢀresponseꢀtoꢀloadꢀcurrentꢀstep-changeꢀ
Outputꢀvoltageꢀrippleꢀ(20mV/div.)ꢀatꢀTref=ꢀ+25ꢀ°C,ꢀVinꢀ=ꢀ5ꢀV,ꢀꢀ
IOꢀ=ꢀ16ꢀAꢀresistiveꢀload.ꢀ
Bandꢀwidthꢀ=ꢀ5ꢀMHz.ꢀ
(4-12-4ꢀA)ꢀatꢀTrefꢀ=ꢀ+25ꢀ°C,ꢀVinꢀ=ꢀ5ꢀV.ꢀdI/dtꢀ=ꢀ5ꢀA/µsꢀ
Topꢀtrace:ꢀoutputꢀvoltageꢀ(ac)ꢀ(100ꢀmV/div.).ꢀ
Bottomꢀtrace:ꢀloadꢀcurrentꢀ(dc)ꢀ(10ꢀA/div.)ꢀ
Timeꢀscale:ꢀ0.1ꢀms/div.
Timeꢀscale:ꢀ2ꢀµsꢀ/ꢀdiv.
Transient with ꢁ00 µFꢀoutputꢀcapacitor
Outputꢀvoltageꢀresponseꢀtoꢀloadꢀcurrentꢀstep-changeꢀꢀ
(4-12-4ꢀA)ꢀatꢀTrefꢀ=+25ꢀ°C,ꢀVinꢀ=ꢀ5ꢀV.ꢀdI/dtꢀ=ꢀ5A/µsꢀ
Topꢀtrace:ꢀoutputꢀvoltageꢀ(ac)ꢀ(100ꢀmV/div.).ꢀ
Bottomꢀtrace:ꢀloadꢀcurrentꢀ(dc)ꢀ(10ꢀA/div.)ꢀ
Timeꢀscale:ꢀ0.1ꢀms/div.
ꢀꢁ
ꢀꢀꢀꢀꢀꢀEN/LZTꢀ146ꢀ049ꢀR4Aꢀ©EricssonꢀPowerꢀModules,ꢀMarchꢀ2007
PMBꢀ4518TꢀWPꢀDatasheet
Operating Information
Remote Control (RC)
EMC Specification
Layout Recommendation
TheꢀradiatedꢀEMIꢀperformanceꢀofꢀtheꢀDC/DCꢀregulatorꢀwillꢀbeꢀ
optimisedꢀbyꢀincludingꢀaꢀgroundꢀplaneꢀinꢀtheꢀPCBꢀareaꢀunderꢀ
theꢀDC/DCꢀregulator.ꢀThisꢀapproachꢀwillꢀreturnꢀswitchingꢀ
noiseꢀtoꢀgroundꢀasꢀdirectlyꢀasꢀpossible,ꢀwithꢀimprovementsꢀ
toꢀbothꢀemissionꢀandꢀsusceptibility.
TheꢀRCꢀpinꢀmayꢀbeꢀusedꢀtoꢀturnꢀonꢀorꢀturnꢀoffꢀtheꢀregulatorꢀ
usingꢀaꢀsuitableꢀopenꢀcollectorꢀfunction.ꢀ
TurnꢀoffꢀisꢀachievedꢀbyꢀconnectingꢀtheꢀRCꢀpinꢀtoꢀtheꢀinputꢀ
voltage.ꢀꢀ
TheꢀregulatorꢀwillꢀrunꢀinꢀnormalꢀoperationꢀwhenꢀtheꢀRCꢀpinꢀisꢀ
leftꢀopen.ꢀ
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condition
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min
1.7
typ
max
5.5
Unit
V
ꢆꢂ
ꢅꢂ
Highꢀlevelꢀ
OFF
referencedꢀtoꢀGND
Open
ON
ꢀ
ꢄꢂ
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ꢃꢂ
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RC
Module
GND
Remote Sense
AllꢀPMBꢀ4000ꢀSeriesꢀDC/DCꢀregulatorsꢀhaveꢀaꢀpositiveꢀre-
moteꢀsenseꢀpinꢀthatꢀcanꢀbeꢀusedꢀtoꢀcompensateꢀforꢀmoder-
ateꢀamountsꢀofꢀresistanceꢀinꢀtheꢀdistributionꢀsystemꢀandꢀal-
lowꢀforꢀvoltageꢀregulationꢀatꢀtheꢀloadꢀorꢀotherꢀselectedꢀpoint.ꢀ
Theꢀremoteꢀsenseꢀlineꢀwillꢀcarryꢀveryꢀlittleꢀcurrentꢀandꢀdoesꢀ
notꢀneedꢀaꢀlargeꢀcrossꢀsectionalꢀarea.ꢀHowever,ꢀtheꢀsenseꢀ
lineꢀonꢀtheꢀPCBꢀshouldꢀbeꢀlocatedꢀcloseꢀtoꢀaꢀgroundꢀtraceꢀorꢀ
groundꢀplane.ꢀTheꢀremoteꢀsenseꢀcircuitryꢀwillꢀcompensateꢀforꢀ
upꢀtoꢀ10%ꢀvoltageꢀdropꢀbetweenꢀtheꢀsenseꢀvoltageꢀandꢀtheꢀ
voltageꢀatꢀtheꢀoutputꢀpinsꢀfromꢀVOnom.ꢀIfꢀtheꢀremoteꢀsenseꢀisꢀ
notꢀneededꢀtheꢀsenseꢀpinꢀshouldꢀbeꢀleftꢀopen.
ꢀꢂ
ꢀꢀꢀꢀꢀꢀEN/LZTꢀ146ꢀ049ꢀR4Aꢀ©EricssonꢀPowerꢀModules,ꢀMarchꢀ2007
PMBꢀ4518TꢀWPꢀDatasheet
Operating Information
Output Voltage Adjust (Vadj
)
Input And Output Impedance
Theꢀoutputꢀvoltageꢀcanꢀbeꢀsetꢀbyꢀmeansꢀofꢀanꢀexternalꢀ
resistor,ꢀconnectedꢀtoꢀtheꢀVadjꢀpin.ꢀNominalꢀoutputꢀvoltageꢀ
0.75ꢀVꢀisꢀsetꢀbyꢀleavingꢀtheꢀVadjꢀpinꢀopen.ꢀAdjustmentꢀcanꢀ
onlyꢀbeꢀmadeꢀtoꢀincreaseꢀtheꢀoutputꢀvoltageꢀsetting.
Theꢀimpedanceꢀofꢀbothꢀtheꢀpowerꢀsourceꢀandꢀtheꢀloadꢀwillꢀ
interactꢀwithꢀtheꢀimpedanceꢀofꢀtheꢀDC/DCꢀregulator.ꢀItꢀisꢀ
mostꢀimportantꢀtoꢀhaveꢀaꢀlowꢀcharacteristicꢀimpedance,ꢀ
bothꢀatꢀtheꢀinputꢀandꢀoutput,ꢀasꢀtheꢀregulatorsꢀhaveꢀaꢀlowꢀ
energyꢀstorageꢀcapability.ꢀUseꢀcapacitorsꢀacrossꢀtheꢀinputꢀifꢀ
theꢀsourceꢀinductanceꢀisꢀgreaterꢀthanꢀ4.7ꢀµH.ꢀSuitableꢀinputꢀ
capacitorsꢀareꢀ22ꢀµFꢀ-ꢀ220ꢀµFꢀlowꢀESRꢀceramics.ꢀ
Toꢀincrease:ꢀꢀ
Connectꢀaꢀresistorꢀbetweenꢀ(Vadj)ꢀandꢀ(Gnd).ꢀTheꢀoutputꢀ
voltageꢀincreasesꢀwithꢀdecreasingꢀresistorꢀvalueꢀasꢀshownꢀ
inꢀtheꢀtableꢀbelow.ꢀNoteꢀthatꢀtheꢀmaximumꢀoutputꢀvoltageꢀ
3.63ꢀVꢀmayꢀnotꢀbeꢀexceeded.
Minimum Required External Capacitors
Externalꢀinputꢀcapacitorsꢀareꢀrequiredꢀtoꢀincreaseꢀtheꢀ
lifetimeꢀofꢀtheꢀinternalꢀcapacitorsꢀandꢀtoꢀfurtherꢀreduceꢀtheꢀ
inputꢀripple.ꢀAꢀminimumꢀofꢀ2x22ꢀµFꢀexternalꢀinputꢀcapaci-
tanceꢀwithꢀlowꢀESRꢀshouldꢀbeꢀadded.
Rextꢀupꢀ(kohm)ꢀ=ꢀ(21.007ꢀ/ꢀ(VOꢀ-ꢀ0.75225))ꢀ-ꢀ5.1ꢀ
OutputꢀVoltageꢀ(V)
Resistorꢀ(ohm)
Open
Aꢀminimumꢀofꢀ150ꢀµFꢀexternalꢀoutputꢀcapacitance,ꢀlowꢀESR,ꢀ
shouldꢀbeꢀaddedꢀforꢀtheꢀconverterꢀtoꢀoperateꢀproperlyꢀatꢀfullꢀ
load.ꢀꢀꢀꢀꢀ
0.75
1.0
1.2
1.5
1.8
2.5
3.3
79.691ꢀk
41.817ꢀk
22.990ꢀk
14.949ꢀk
6.919ꢀk
Maximum Capacitive Load
Whenꢀpoweringꢀloadsꢀwithꢀsignificantꢀdynamicꢀcurrentꢀ
requirements,ꢀtheꢀvoltageꢀregulationꢀatꢀtheꢀloadꢀcanꢀbe
improvedꢀbyꢀadditionꢀofꢀdecouplingꢀcapacitanceꢀatꢀtheꢀload.ꢀ
TheꢀmostꢀeffectiveꢀtechniqueꢀisꢀtoꢀlocateꢀlowꢀESRꢀceramicꢀ
capacitorsꢀasꢀcloseꢀtoꢀtheꢀloadꢀasꢀpossible,ꢀusingꢀseveralꢀ
capacitorsꢀtoꢀlowerꢀtheꢀtotalꢀESR.ꢀTheseꢀceramicꢀcapacitorsꢀ
willꢀhandleꢀshortꢀdurationꢀhigh-frequencyꢀcomponentsꢀ
ofꢀdynamicꢀloadꢀchanges.ꢀInꢀaddition,ꢀhigherꢀvaluesꢀofꢀ
capacitorsꢀ(electrolyticꢀcapacitors)ꢀshouldꢀbeꢀusedꢀtoꢀhandleꢀ
theꢀmid-frequencyꢀcomponents.ꢀItꢀisꢀequallyꢀimportantꢀ
toꢀuseꢀgoodꢀdesignꢀpracticeꢀwhenꢀconfiguringꢀtheꢀDCꢀ
distributionꢀsystem.
3.145ꢀk
+Out
Sense
LowꢀresistanceꢀandꢀlowꢀinductanceꢀPCBꢀlayoutsꢀandꢀ
cablingꢀshouldꢀbeꢀused.ꢀRememberꢀthatꢀwhenꢀusingꢀremoteꢀ
sensing,ꢀallꢀresistanceꢀ(includingꢀtheꢀESR),ꢀinductanceꢀandꢀ
capacitanceꢀofꢀtheꢀdistributionꢀsystemꢀisꢀwithinꢀtheꢀfeedbackꢀ
loopꢀofꢀtheꢀregulator.ꢀThisꢀcanꢀaffectꢀonꢀtheꢀregulatorsꢀ
compensationꢀandꢀtheꢀresultingꢀstabilityꢀandꢀdynamicꢀ
responseꢀperformance.
Load
V
adj
R
adj
GND
Increase
VeryꢀlowꢀESRꢀandꢀhighꢀcapacitanceꢀmustꢀbeꢀusedꢀwithꢀ
care.ꢀAꢀ“ruleꢀofꢀthumb”ꢀisꢀthatꢀtheꢀtotalꢀcapacitanceꢀmustꢀ
neverꢀexceedꢀtypicallyꢀ500-700ꢀµFꢀifꢀonlyꢀlowꢀESRꢀ(<ꢀ2ꢀmΩ)ꢀ
ceramicꢀcapacitorsꢀareꢀused.ꢀIfꢀmoreꢀcapacitanceꢀisꢀneeded,ꢀ
aꢀcombinationꢀofꢀlowꢀESRꢀtypeꢀandꢀelectrolyticꢀcapacitorsꢀ
shouldꢀbeꢀused,ꢀotherwiseꢀtheꢀstabilityꢀwillꢀbeꢀaffected.
Circuitꢀconfigurationꢀforꢀoutputꢀvoltageꢀadjust
Current Limit Protection
TheꢀPMBꢀ4000ꢀSeriesꢀDC/DCꢀregulatorsꢀincludeꢀcurrentꢀ
limitingꢀcircuitryꢀthatꢀallowsꢀthemꢀtoꢀwithstandꢀcontinuousꢀ
overloadsꢀorꢀshortꢀcircuitꢀconditionsꢀonꢀtheꢀoutput.ꢀTheꢀcur-
rentꢀlimitꢀisꢀofꢀhick-upꢀmodeꢀtype.
Theꢀregulatorꢀwillꢀresumeꢀnormalꢀoperationꢀafterꢀremovalꢀ
ofꢀtheꢀoverload.ꢀTheꢀloadꢀdistributionꢀsystemꢀshouldꢀbeꢀ
designedꢀtoꢀcarryꢀtheꢀmaximumꢀoutputꢀshortꢀcircuitꢀcurrentꢀ
specified.
TheꢀPMBꢀ4000ꢀseriesꢀregulatorꢀcanꢀacceptꢀupꢀtoꢀ8ꢀmFꢀofꢀ
capacitiveꢀloadꢀonꢀtheꢀoutputꢀatꢀfullꢀload.ꢀThisꢀgivesꢀ<500ꢀ
µF/AꢀofꢀIO.ꢀWhenꢀusingꢀthatꢀlargeꢀcapacitanceꢀitꢀisꢀimportantꢀ
toꢀconsiderꢀtheꢀselectionꢀofꢀoutputꢀcapacitors;ꢀtheꢀresultingꢀ
behaviorꢀisꢀaꢀcombinationꢀofꢀtheꢀamountꢀofꢀcapacitanceꢀandꢀ
ESR.
ꢀꢃ
ꢀꢀꢀꢀꢀꢀEN/LZTꢀ146ꢀ049ꢀR4Aꢀ©EricssonꢀPowerꢀModules,ꢀMarchꢀ2007
PMBꢀ4518TꢀWPꢀDatasheet
Operating Information
AꢀcombinationꢀofꢀlowꢀESRꢀandꢀoutputꢀcapacitanceꢀ
exceedingꢀ8ꢀmFꢀcanꢀcauseꢀtheꢀregulatorꢀintoꢀoverꢀcurrentꢀ
protectionꢀmodeꢀ(hick-up)ꢀdueꢀtoꢀhighꢀstartꢀupꢀcurrent.ꢀTheꢀ
outputꢀfilterꢀmustꢀthereforeꢀbeꢀdesignedꢀwithoutꢀexceedingꢀ
theꢀaboveꢀstatedꢀcapacitanceꢀlevelsꢀifꢀtheꢀESRꢀisꢀlowerꢀthanꢀ
30-40ꢀmΩ.
Parallel Operation
TheꢀPMBꢀ4000ꢀSeriesꢀDC/DCꢀregulatorsꢀcanꢀbeꢀconnectedꢀinꢀ
parallelꢀwithꢀaꢀcommonꢀinput.ꢀParallelingꢀisꢀaccomplishedꢀbyꢀ
connectingꢀtheꢀoutputꢀvoltageꢀpinsꢀdirectlyꢀandꢀusingꢀaꢀloadꢀ
sharingꢀdeviceꢀonꢀtheꢀinput.ꢀLayoutꢀconsiderationsꢀshouldꢀbeꢀ
madeꢀtoꢀavoidꢀloadꢀimbalance.ꢀForꢀmoreꢀdetailsꢀonꢀparallel-
ing,ꢀpleaseꢀconsultꢀyourꢀlocalꢀapplicationsꢀsupport.ꢀ
Input Undervoltage Lockout
TheꢀPMBꢀ4000ꢀSeriesꢀDC/DCꢀregulatorsꢀareꢀequippedꢀwithꢀaꢀ
lockoutꢀfunctionꢀforꢀlowꢀinputꢀvoltage.Whenꢀtheꢀinputꢀvoltageꢀ
isꢀbelowꢀtheꢀundervoltageꢀlockoutꢀlimitꢀofꢀtheꢀregulatorꢀitꢀwillꢀ
shutꢀoff.ꢀWhenꢀtheꢀinputꢀvoltageꢀincreasesꢀaboveꢀtheꢀlockoutꢀ
levelꢀtheꢀregulatorꢀwillꢀturnꢀon.ꢀ
ꢀꢄ
ꢀꢀꢀꢀꢀꢀEN/LZTꢀ146ꢀ049ꢀR4Aꢀ©EricssonꢀPowerꢀModules,ꢀMarchꢀ2007
PMBꢀ4518TꢀWPꢀDatasheet
ꢀ
ꢀ
((1/η )ꢀ-ꢀ1)ꢀ×ꢀoutputꢀpowerꢀ=ꢀpowerꢀlosses.ꢀ
ꢀηꢀ=ꢀefficiencyꢀofꢀregulator.ꢀExample:ꢀ95%ꢀ=ꢀ0.95
B.ꢀ
gramꢀ
malꢀ
FindꢀtheꢀvalueꢀofꢀtheꢀthermalꢀresistanceꢀRthꢀTref-Aꢀinꢀtheꢀdia-
byꢀusingꢀtheꢀairflowꢀspeedꢀatꢀtheꢀmodule.ꢀTakeꢀtheꢀther-
resistanceꢀ×ꢀpowerlossꢀtoꢀgetꢀtheꢀtemperatureꢀincrease.
A.ꢀTheꢀpowerlossꢀisꢀcalculatedꢀbyꢀusingꢀtheꢀformula
Thermal Considerations
General
Calculation of ambient temperature
TheꢀPMBꢀ4000ꢀSeriesꢀDC/DCꢀregulatorsꢀareꢀdesignedꢀ
toꢀoperateꢀinꢀaꢀvarietyꢀofꢀthermalꢀenvironments,ꢀhoweverꢀ
sufficientꢀcoolingꢀshouldꢀbeꢀprovidedꢀtoꢀhelpꢀensureꢀreliableꢀ
operation.ꢀHeatꢀisꢀremovedꢀbyꢀconduction,ꢀconvectionꢀandꢀ
radiationꢀtoꢀtheꢀsurroundingꢀenvironment.ꢀIncreasedꢀairflowꢀ
enhancesꢀtheꢀheatꢀtransferꢀviaꢀconvection.ꢀꢀ
Byꢀusingꢀtheꢀthermalꢀresistanceꢀtheꢀmaximumꢀallowedꢀꢀ
ambientꢀtemperatureꢀcanꢀbeꢀcalculated.ꢀ
Properꢀcoolingꢀcanꢀbeꢀverifiedꢀbyꢀmeasuringꢀtheꢀ
temperatureꢀatꢀtheꢀreferenceꢀpointꢀ(T ).
ref
<«$ꢈ8>
ꢁNBYꢂꢀꢀꢃꢂ«$ꢄ
5
SFG
ꢃꢂ
ꢂꢊ7JOꢁꢊꢅꢉꢅꢊ7PVUꢁꢊꢊꢅꢉꢅꢊ7JOꢊꢃꢉꢀꢌꢃꢉꢋꢊ7PVU
ꢅꢉꢅꢊ7JOꢁꢊꢄꢉꢂꢊ7PVU
ꢃꢄ
ꢀ
ꢂꢊ7JOꢁꢊꢃꢉꢄꢁꢊꢄꢉꢂꢊ7PVU
ꢂꢊ7JOꢁꢊꢃꢉꢀꢁꢊꢃꢉꢂꢁꢊꢃꢉꢋꢊ7PVU
ꢇ
ꢆ
ꢅ
ꢀ
TheꢀPMBꢀ4000ꢀthermalꢀtestingꢀisꢀperformedꢀwithꢀtheꢀ
productꢀmountedꢀonꢀanꢀFR4ꢀboardꢀ254ꢀ×ꢀ254ꢀmmꢀwithꢀ8ꢀ
ꢀꢁꢀ
ꢀꢁꢂ
ꢃꢁꢀ
ꢃꢁꢂ
ꢄꢁꢀ
ꢄꢁꢂ
ꢅꢁꢀ <NꢈT>
layersꢀofꢀ35ꢀµmꢀcopper.ꢀAirflowꢀisꢀperpendicularꢀtoꢀtheꢀT ꢀ
ref
side.
Thermalꢀresistanceꢀvs.ꢀairspeedꢀmeasuredꢀatꢀtheꢀregulator.ꢀꢀ
C.ꢀMaxꢀallowedꢀcalculatedꢀambientꢀtemperatureꢀis:ꢀ
ꢀꢀꢀꢀMaxꢀT ꢀofꢀDC/DCꢀregulatorꢀ-ꢀtemperatureꢀincrease.
ref
choke
Example:ꢀꢀ5Vꢀinput,ꢀ1.8ꢀVꢀoutputꢀatꢀ1m/s,ꢀfullꢀload:ꢀ
A.ꢀ((1/0.9)ꢀ-ꢀ1)ꢀ×ꢀ28.8ꢀWꢀ=ꢀ3.2ꢀWꢀ
airflow
B.ꢀ3.2ꢀWꢀ×ꢀ9ꢀ°C/Wꢀ=ꢀ28.8ꢀ°Cꢀ
C.ꢀ90ꢀ°Cꢀ-ꢀ28.8ꢀ°Cꢀ=ꢀmaxꢀambientꢀtemperatureꢀisꢀ61.2ꢀ°Cꢀꢀ
Test board
Theꢀrealꢀtemperatureꢀwillꢀbeꢀdependentꢀonꢀseveralꢀfactors,ꢀ
likeꢀPCBꢀsizeꢀandꢀtype,ꢀdirectionꢀofꢀairflow,ꢀairꢀturbulenceꢀ
etc.ꢀItꢀisꢀrecommendedꢀtoꢀverifyꢀtheꢀtemperatureꢀbyꢀtesting.ꢀ
ꢀꢅ
ꢀꢀꢀꢀꢀꢀEN/LZTꢀ146ꢀ049ꢀR4Aꢀ©EricssonꢀPowerꢀModules,ꢀMarchꢀ2007
PMBꢀ4518TꢀWPꢀDatasheet
Soldering Information
TheꢀPMBꢀ4000ꢀseriesꢀDC/DCꢀregulatorsꢀareꢀintendedꢀforꢀ
manualꢀorꢀwaveꢀsoldering.ꢀTheꢀplasticꢀbodyꢀofꢀtheꢀpinꢀ
connectorsꢀresistsꢀsolderingꢀheatꢀforꢀlimitedꢀtimeꢀupꢀtoꢀ260ꢀ
°C.ꢀ
ꢀ
Whenꢀhandꢀsoldering,ꢀcareꢀshouldꢀbeꢀtakenꢀtoꢀavoidꢀdirectꢀ
contactꢀbetweenꢀtheꢀhotꢀsolderingꢀironꢀtipꢀandꢀtheꢀpinsꢀforꢀ
moreꢀthanꢀaꢀfewꢀsecondsꢀinꢀorderꢀtoꢀavoidꢀmeltingꢀofꢀtheꢀ
plastic.ꢀꢀꢀ
Delivery Package Information
TheꢀPMBꢀ4000ꢀseriesꢀregulatorsꢀareꢀdeliveredꢀinꢀantistaticꢀ
traysꢀwithꢀJedecꢀstandardꢀouterꢀdimensions.ꢀTrayꢀcapacityꢀ
25ꢀpcs.ꢀ
Eachꢀboxꢀcontainsꢀ4ꢀtrays.ꢀꢀ
Reliability
TheꢀMeanꢀTimeꢀBetweenꢀFailureꢀ(MTBF)ꢀofꢀtheꢀPMBꢀ4000ꢀ
seriesꢀDC/DCꢀregulatorꢀfamilyꢀisꢀcalculatedꢀtoꢀbeꢀgreaterꢀ
thanꢀ6ꢀmillionꢀhoursꢀatꢀfullꢀoutputꢀpowerꢀandꢀaꢀreferenceꢀ
temperatureꢀofꢀ+40ꢀ°CꢀusingꢀTelCordiaꢀSRꢀ332.ꢀꢀ
Compatibility with RoHS requirements
Theꢀproductsꢀareꢀcompatibleꢀwithꢀtheꢀrelevantꢀclausesꢀ
andꢀrequirementsꢀofꢀtheꢀRoHSꢀdirectiveꢀ2002/95/ECꢀandꢀ
haveꢀaꢀmaximumꢀconcentrationꢀvalueꢀofꢀ0.1%ꢀbyꢀweightꢀ
inꢀhomogeneousꢀmaterialsꢀforꢀlead,ꢀmercury,ꢀhexavalentꢀ
chromium,ꢀPBBꢀandꢀPBDEꢀandꢀofꢀ0.01%ꢀbyꢀweightꢀinꢀ
homogeneousꢀmaterialsꢀforꢀcadmium.ꢀ
ExemptionsꢀinꢀtheꢀRoHSꢀdirectiveꢀutilizedꢀinꢀEricssonꢀPowerꢀ
Modulesꢀproductsꢀinclude:ꢀꢀ
•ꢀLeadꢀinꢀhighꢀmeltingꢀtemperatureꢀtypeꢀsolderꢀ(usedꢀtoꢀ
solderꢀtheꢀdieꢀinꢀsemiconductorꢀpackages)
•ꢀLeadꢀinꢀglassꢀofꢀelectronicsꢀcomponentsꢀandꢀinꢀelectronicꢀ
ceramicꢀpartsꢀ(e.g.ꢀfillꢀmaterialꢀinꢀchipꢀresistors)
•ꢀLeadꢀasꢀanꢀalloyingꢀelementꢀinꢀcopperꢀalloyꢀcontainingꢀ
upꢀtoꢀ4%ꢀleadꢀbyꢀweightꢀ(usedꢀinꢀconnectionꢀpinsꢀmadeꢀofꢀ
Brass)ꢀ
ꢀꢆ
ꢀꢀꢀꢀꢀꢀEN/LZTꢀ146ꢀ049ꢀR4Aꢀ©EricssonꢀPowerꢀModules,ꢀMarchꢀ2007
PMBꢀ4518TꢀWPꢀDatasheet
Sales Offices and Contact Information
CompanyꢀHeadquarters
EricssonꢀPowerꢀModulesꢀAB
LMꢀEricssonsꢀvägꢀ30ꢀ
SE-126ꢀ25ꢀꢀStockholmꢀ
Sweden
Italy,ꢀSpainꢀꢀ(Mediterranean)
EricssonꢀPowerꢀModulesꢀAB
ViaꢀCadornaꢀ71ꢀ
20090ꢀVimodroneꢀ(MI)ꢀ
Italy
Phone:ꢀ+46-8-568-69620ꢀ
Fax:ꢀ+46-8-568-69599
Phone:ꢀ+39-02-265-946-07ꢀ
Fax:ꢀ+39-02-265-946-69
China
Japan
EricssonꢀSimtekꢀElectronicsꢀCo.
33ꢀFuhuaꢀRoadꢀ
JiadingꢀDistrictꢀ
Shanghaiꢀ201ꢀ818ꢀ
Chinaꢀ
EricssonꢀPowerꢀModulesꢀABꢀ
KimuraꢀDainiꢀBuilding,ꢀ3ꢀFL.ꢀ
3-29-7ꢀMinami-Oomachi,ꢀShinagawa-kaꢀ
Tokyoꢀ140-0013ꢀ
Japan
Phone:ꢀ+86-21-5990-3258ꢀ
Fax:ꢀ+86-21-5990-0188
Phone:ꢀ+81-3-5733-5107ꢀ
Fax:ꢀ+81-3-5753-5162
NorthꢀandꢀSouthꢀAmericaꢀ
EricssonꢀInc.ꢀPowerꢀModules
6300ꢀLegacyꢀDr.ꢀ
Germany,ꢀAustria
EricssonꢀPowerꢀModulesꢀAB
MühlhauserꢀWegꢀ18ꢀ
85737ꢀIsmaningꢀ
Plano,ꢀTXꢀ75024ꢀ
USA
Germanyꢀ
Phone:ꢀ+1-972-583-5254ꢀ
ꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀ+1-972-583-6910ꢀ
Fax:ꢀ+1-972-583-7839
Phone:ꢀ+49-89-9500-6905ꢀ
Fax:ꢀ+49-89-9500-6911
HongꢀKongꢀ(AsiaꢀPacific)
EricssonꢀLtd.ꢀ
12/F.ꢀDevonꢀHouse
979ꢀKing’sꢀRoadꢀ
QuarryꢀBayꢀ
Allꢀotherꢀcountries
ContactꢀCompanyꢀHeadquartersꢀ
orꢀvisitꢀourꢀwebsite:
www.ericsson.com/powermodules
HongꢀKong
Phone:ꢀ+852-2590-2453ꢀ
Fax:ꢀ+852-2590-7152
Informationꢀgivenꢀinꢀthisꢀdataꢀsheetꢀisꢀbelievedꢀtoꢀbeꢀaccurateꢀandꢀreliable.ꢀꢀ
Noꢀresponsibilityꢀisꢀassumedꢀforꢀtheꢀconsequencesꢀofꢀitsꢀuseꢀnorꢀforꢀanyꢀinfringementꢀ
ofꢀpatentsꢀorꢀotherꢀrightsꢀofꢀthirdꢀpartiesꢀwhichꢀmayꢀresultꢀfromꢀitsꢀuse.ꢀꢀ
Noꢀlicenseꢀisꢀgrantedꢀbyꢀimplicationꢀorꢀotherwiseꢀunderꢀanyꢀpatentꢀorꢀpatentꢀrightsꢀofꢀ
EricssonꢀPowerꢀModules.ꢀTheseꢀproductsꢀareꢀsoldꢀonlyꢀaccordingꢀtoꢀꢀ
EricssonꢀPowerꢀModules’ꢀgeneralꢀconditionsꢀofꢀsale,ꢀunlessꢀotherwiseꢀconfirmedꢀinꢀ
writing.ꢀSpecificationsꢀsubjectꢀtoꢀchangeꢀwithoutꢀnotice.ꢀ
ꢀꢇ
ꢀꢀꢀꢀꢀꢀEN/LZTꢀ146ꢀ049ꢀR4Aꢀ©EricssonꢀPowerꢀModules,ꢀMarchꢀ2007
PMBꢀ4518TꢀWPꢀDatasheet
相关型号：
PMB4218GWPP
DC-DC Regulated Power Supply Module, 1 Output, 28.8W, Hybrid, ROHS COMPLIANT, PACKAGE-10
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PMB4218GWPP/B
DC-DC Regulated Power Supply Module, 1 Output, 28.8W, Hybrid, ROHS COMPLIANT, PACKAGE-10
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PMB4218HWPP
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PMB4218HWPP/B
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PMB4310WP/B
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