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SC1154CSW 数据表(PDF) 6 Page - Semtech Corporation

部件名 SC1154CSW
功能描述  PROGRAMMABLE SYNCHRONOUS DC/DC HYSTERETIC CONTROLLER FOR ADVANCED PROCESSORS
PDF  18 Pages
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制造商  SEMTECH [Semtech Corporation]
网页  http://www.semtech.com
标志 SEMTECH - Semtech Corporation

SC1154CSW 数据表(HTML) 6 Page - Semtech Corporation

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SC1154
PROGRAMMABLE SYNCHRONOUS
DC/DC HYSTERETIC CONTROLLER
FOR ADVANCED PROCESSORS
© 2000 SEMTECH CORP.
652 MITCHELL ROAD NEWBURY PARK CA 91320
PRELIMINARY - March 1, 2000
6
ELECTRICAL CHARACTERISTICS (cont.)
Unless specified: 0 < T
J < 125°C, VIN12V = 12V
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
HIGH-SIDE VDS SENSING (cont.)
V
HISENSE = 4.5V,
R
IOUT = 10kOhm
02.0
V
V
HISENSE = 3V, RIOUT = 10kOhm
0
1.0
V
LOSENSE High Level Input
Voltage
Vih
LOSENSE
V
HISENSE = 4.5V (Note 1)
2.85
V
LOSENSE Low Level Input
Voltage
Vil
LOSENSE
V
HISENSE = 4.5V (Note 1)
1.8
V
Sample/Hold Resistance
R
S/H
4.5V < = 13V
50
65
80
Ω
BUFFERED REFERENCE
VREFB Load Regulation
Vldreg
REFB
10µA < I
REFB < 500µA
2
mV
DEADTIME CIRCUIT
LOHIB High Level Voltage
Vih
LOHIB
2V
LOHIB Low Level Input
Voltage
Vil
LOHIB
1.0
V
LOWDR High Level Input
Voltage
Vih
LOWDR
(Note 1)
2
V
LOWDR Low Level Input
Voltage
Vil
LOWDR
(Note 1)
1.0
V
DRIVE REGULATOR
Output Voltage
V
DRV
11.4 < VIN12V < 12.6V,
I
DRV = 50mA
79
V
Load Regulation
Vldreg
DRV
1mA < I
DRV < 50mA
100
mV
Short Circuit Current
Ishort
DRV
100
mA
HIGH-SIDE OUTPUT DRIVER
Peak Output Current
Isrc
HIGHDR’
Isink
HIGHDR
duty cycle < 2%, tpw < 100us,
T
J = 125°C
V
BOOT - VBOOTLO = 6.5V, VHIGHDR
= 1.5V (src), or V
HIGHDR = 5V
(sink) (Note 1)
2
A



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