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SC1155CSW Datenblatt(PDF) 6 Page - Semtech Corporation

Teilenummer SC1155CSW
Bauteilbeschribung  PROGRAMMABLE SYNCHRONOUS DC/DC HYSTERETIC CONTROLLER WITH VRM 9.0 VID RANGE
PDF  19 Pages
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Hersteller  SEMTECH [Semtech Corporation]
Direct Link  http://www.semtech.com
Logo SEMTECH - Semtech Corporation

SC1155CSW Datenblatt(HTML) 6 Page - Semtech Corporation

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SC1155
PROGRAMMABLE SYNCHRONOUS
DC/DC HYSTERETIC CONTROLLER
WITH VRM 9.0 VID RANGE
© 2000 SEMTECH CORP.
PRELIMINARY - August 7, 2000
6
ELECTRICAL CHARACTERISTICS (cont.)
Unless specified: 0 < T
J < 125°C, VIN12V = 12V
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
DRIVE REGULATOR
DRV 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
Output Resistance
Rsrc
HIGHDR’
T
J = 125°C
V
BOOT - VBOOTLO = 6.5V,
V
HIGHDR = 6V
45
Ω
Rsink
HIGHDR
T
J = 125°C
V
BOOT - VBOOTLO = 6.5V,
V
HIGHDR = 0.5V
5
LOW-SIDE OUTPUT DRIVER
Peak Output Current
Isrc
LOWDR’
Isink
LOWDR
duty cycle < 2%, tpw < 100us,
T
J = 125°C
V
DRV = 6.5V, VLOWDR = 1.5V (src),
or V
LOWDR = 5V (sink) (Note 1)
2
A
Output Resistance
Rsrc
LOWDR’
T
J = 125°C
V
DRV = 6.5V, VLOWDR = 6V
45
Ω
Rsink
LOWDR
T
J = 125°C
V
DRV = 6.5V, VLOWDR = 0.5V
5



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