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SP6122 Datasheet(PDF) 2 Page - Sipex Corporation

Part No. SP6122
Description  Low Voltage, Micro 8, PFET, Buck Controller Ideal for 1A to 5A, Small Footprint, DC-DC Power Converters
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Maker  SIPEX [Sipex Corporation]
Homepage  http://www.sipex.com
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 2 page
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2
Rev. 7/16/03
SP6122 Low Voltage, Micro 8, PFET, Buck Controller
© Copyright 2003 Sipex Corporation
ELECTRICAL CHARACTERISTICS
Unless otherwise specified: 0°C < TAMB < 70°C, 3.0V < VCC < 5.5V, CPDRV = 1nF, VENABLE = VCC, VFFLAG = VCC,
ISET = ISENSE = VCC, GND = 0V
These are stress ratings only and functional operation of
the device at these ratings or any other above those
indicated in the operation sections of the specifications
below is not implied. Exposure to absolute maximum
rating conditions for extended periods of time may affect
reliability.
VCC .............................................................................................................. 7V
All other pins ...................................... -0.3V to VCC+0.3V
Peak Output Current < 10µs
PDRV ......................................................................... 2A
Storage Temperature .............................. -65°C to 150°C
Power Dissipation
Lead Temperature (Soldering, 10 sec) ................. 300°C
ESD Rating ...................................................... 2kV HBM
PARAMETER
MIN
TYP
MAX
UNITS
CONDITIONS
QUIESCENT CURRENT
VCC Supply Current,
OVC Enabled
-
300
450
µA
No Switching, ISET = ISENSE = VCC
VCC Supply Current,
OVC Disabled
-
250
360
µA
No Switching, ISET = ISENSE = 0
VCC Supply Current,
-
150
225
µA
No Switching, ISET = 0,
OVC Disabled, Ultra Low IQ
ISENSE=VCC
VCC Supply Current, Sleep Mode
-
5
15
µA
Enable=0
REFERENCE
Output Voltage, Initial Accuracy
VR*0.985
VR
VR*1.015
V
VR = Factory Set Voltage,
see Note
Output Voltage, Over Line,
VR*0.980
VR
VR*1.020
V
VR = Factory Set Voltage,
Load and Temperature
see Note
Reference Comparator
-
5
-
mV
Internal Hysteresis at Feedback
Hysteresis
Terminal
VOUT Input Current
-
23
-
µAVOUT = VR;
SP6122ACU-1.5 ONLY
OSCILLATOR
Oscillator Frequency
210
300
390
kHz
Minimum Pulse Width during
150
270
380
ns
Startup (Blanking Time)
Soft Start
Soft Start Ramp Time
-
3.5
-
ms
VOUT = VR – 30mV, Measure
time from ENABLE = 1V to
PDRV Low
Soft Start Voltage when
-
250
-
mV
Measure VSoft Start when
PDRV Switches
PDRV goes Low. (internal)
ABSOLUTE MAXIMUM RATINGS




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