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SP7661 Fiches technique(PDF) 3 Page - Sipex Corporation

No de pièce SP7661
Description  Wide Input Voltage Range 3A, 600kHz, Buck Regulator
PDF  20 Pages
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Fabricant  SIPEX [Sipex Corporation]
Site Internet  http://www.sipex.com
Logo SIPEX - Sipex Corporation

SP7661 Fiches technique(HTML) 3 Page - Sipex Corporation

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3
Mar -07 Rev N
SP766 Wide Input Voltage Range 3A, 600kHz Buck Regulator
© 2007 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.
PARAMETER
MIN TYP MAX UNITS ♦
CONDITIONS
CONTROL LOOP: PWM COMPARATOR, RAMP & LOOP DELAY PATH
RampAmplitude
0.80 1.00
1.20
V
♦
RAMPOffset
1.7
2.0
2.3
V
♦
RampoffsetTemperature
Coefficient
-2
mV/
°C
GHMinimumPulseWidth
150
180
ns
♦
MaximumControllable
DutyRatio
92
97
%
♦
MaximumDutyRatio
00
%
♦
Validfor20cycles
InternalOscillatorRatio
510
600
690
kHZ
♦
TIMERS: SOFTSTART
SSChargeCurrent:
-6
-0
-4.0
µA
♦
SSDischargeCurrent:
1.0
2.0
3.0
mA
♦
FaultPresent,
SS=0.2V
PROTECTION: SHORT CIRCUIT, OVERCURRENT & THERMAL
ShortCircuitThreshold
Voltage
0.2
0.25
0.3
V
♦
HiccupTimeout
90
0
30
ms
♦
VfB=0.5V
OvercurrentThreshold
Voltage
54
60
66
mV
MeasuredISP-ISN
ISP,ISNCommonMode
Range
0
3.6
V
ThermalShutdown
Temperature
135
145
155
°C
Guaranteedbydesign
ThermalRecovery
Temperature
135
°C
ThermalHysteresis
0
°C
OUTPUT: POWER STAGE
HighSideSwitchRDSON
35
75
mΩ
VGS=4.5V;
IDrAiN=4.1A;
TAMB=25°C
SynchronousLowSide
SwitchRDSON
35
75
mΩ
VGS=4.5V;
IDrAiN=4.1A;
TAMB=25°C
MaximumOutput
Current
3
A
♦



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