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SP6133 Datasheet(PDF) 3 Page - Sipex Corporation

Part # SP6133
Description  Synchronous Buck Controller
PDF  20 Pages
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Manufacturer  SIPEX [Sipex Corporation]
Direct Link  http://www.sipex.com
Logo SIPEX - Sipex Corporation

SP6133 Datasheet(HTML) 3 Page - Sipex Corporation

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3
Oct 24-06 Rev L
SP633 Synchronous Buck Controller
© 2006 Sipex Corporation
ELECTRICAL SPECIFICATIONS
Unlessotherwisespecified:-40°C<TAMB<+85°C,4.5V<VCC <5.5V,BST=VCC,SWN = GND = PGND = 0.0 V, UVIN = 3.0V,
CVCC = 0.µF, CCOMP = 0.µF, CGH = CGL = 3.3nF, CSS = 50nF.
PARAMETER
MIN TYP MAX UNITS CONDITIONS
CONTROL LOOP: PWM COMPARATOR, RAMP & LOOP DELAY PATH
Ramp Offset
.7
2.0
2.3
V
TA=25˚C
Ramp Amplitude
0.80
.0
.20
V
GH Minimum Pulse Width
50
00
ns
Maximum Controllable Duty
Ratio
92
%
Maximum Duty Ratio
00
%
Guaranteed by
design
InternalOscillatorFrequency
255
300
345
kHz
TIMERS: SOFTSTART
SSChargeCurrent:
-6
-0
-4
µA
SSDischargeCurrent:
.0
2.0
3.0
mA
Fault Present
VCC LINEAR REGULATOR
VCC Output Voltage
4.6
5.0
5.4
V
VIN = 6 to 23V,
ILOAD = 0mA to
30mA
Dropout Voltage
250
500
750
mV
IVCC = 30mA
POWER GOOD OUTPUT
Power Good Threshold
-0
-7.5
-5
%
Power Good Hysteresis
2.0
4.0
%
Power Good Sink Current
.0
0
mA
VFB = 0.7V,
VPWRGD = 0.2V
PROTECTION: SHORT CIRCUIT & THERMAL
Short Circuit Threshold
Voltage
0.2
0.25
0.3
V
Measured VREF
(0.8V) - VFB
Overcurrent Threshold Voltage
54
60
66
mV
Measured ISP
- ISN
ISP, ISN Common Mode
Range
0
3.3
V
Hiccup Timeout
85
220
270
ms
Thermal Shutdown
Temperature
35
45
55
˚C
Guaranteed by
design
Thermal Hysteresis
0
˚C



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