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SP7661 数据表(PDF) 2 Page - Sipex Corporation

部件名 SP7661
功能描述  Wide Input Voltage Range 3A, 600kHz, Buck Regulator
PDF  20 Pages
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制造商  SIPEX [Sipex Corporation]
网页  http://www.sipex.com
标志 SIPEX - Sipex Corporation

SP7661 数据表(HTML) 2 Page - Sipex Corporation

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2
Nov3-06 Rev I
SP766 Wide Input Voltage Range 3A, 600kHz Buck Regulator
© 2006 Sipex Corporation
ELECTRICAL SPECIFICATIONS
SpecificationsareforTAMB =TJ =25°C,andthosedenotedby♦applyoverthefulloperatingrange,-40°C<Tj<125°C.Unless
otherwisespecified:4.5V<Vcc<5.5V,3V<ViN<22V,BST=LX+5V,UVIN=3V,CVCC=1µF,CCOMP=0.1µF,Css=50nF.
VCC...................................................................................................7V
ViN.................................................................................................25V
BST................................................................................................ 30V
LX-BST...............................................................................-0.3Vto7V
LX........................................................................................-V to 30V
Allotherpins..........................................................-0.3VtoVCC +0.3V
StorageTemperature................................................... -65°Cto150°C
PowerDissipation........................................InternallyLimitedviaOTP
LeadTemperature(Soldering,10sec).......................................300°C
ESDRating........................................................................... 2kVHBM
ThermalResistanceθJC........................................................... 5°C/W
ABSOLUTE MAXIMUM RATINGS
Thesearestressratingsonlyandfunctionaloperationofthedeviceattheseratingsoranyotherabovethoseindicatedintheoperationsections
ofthespecificationsbelowisnotimplied.Exposuretoabsolutemaximumratingconditionsforextendedperiodsoftimemayaffectreliability.
PARAMETER
MIN TYP MAX UNITS ♦
CONDITIONS
QUIESCENT CURRENT
ViNSupplyCurrent
(Noswitching)
1.5
3.0
mA
♦
VfB=0.9V
ViNSupplyCurrent
(switching)
8
14
mA
BSTSupplyCurrent
(Noswitching)
0.2
0.4
mA
♦
VfB=0.9V
BSTSupplyCurrent
(switching)
3
6
mA
PROTECTION: UVLO
VccUVLOStartThreshold 4.00 4.25
4.50
V
♦
VccUVLOHysteresis
00
200
300
mV
♦
UVINStartThreshold
2.30 2.50
2.65
V
♦
UVINHysteresis
200
300
400
mV
♦
UVINInputCurrent
1.0
µA
♦
UVIN=3.0V
ERROR AMPLIFIER REFERENCE
ErrorAmplifierReference 0.792 0.800 0.808
V
2XGainConfig.,Measure
VfB;Vcc=5V
ErrorAmplifier
ReferenceOverLine
0.784 0.800 0.816
V
♦
COMPSinkCurrent
70
150
230
µA
♦ VfB=0.9V,COMP=0.9V
COMPSourceCurrent
-230 -150
-70
µA
♦ VfB=0.9V,COMP=0.9V
VfBInputBiasCurrent
50
200
nA
♦
VfB=0.8V
COMPClamp
3.2
3.5
3.8
V
VfB=0.7V,TA=25
°C
COMPClampTemp.
Coefficient
-2.0
mV/
°C
VCC LINEAR REGULATOR
VCCOutputVoltage
4.7
5.0
5.3
V
♦ V
iN
= 6 to 23V,
ILOAD=0mAto30mA
4.51
4.73
♦ ViN=5V,20mA
DropoutVoltage
250
500
750
mV
♦
Vin-Vout=Dropoutvoltagewhen
Vccregulateddropsby2%.
IVCC=30mA.



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