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SC1155CSW Datenblatt(PDF) 8 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) 8 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
8
DYNAMIC ELECTRICAL CHARACTERISTICS (cont.)
Unless specified: 0 < T
J < 125° C, VIN12V = 12V
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
HIGH-SIDE Vds SENSING (Cont.)
(1)
POWER GOOD
(1)
Comparator Propagation
Delay
t
PWRGD
1µs
SOFTSTART
(1)
Comparator Propagation
Delay
t
SLST
overdrive = 10mv
560
900
ns
DEADTIME
(2)
Driver Nonoverlap Time
t
NOL
C
LOWDR = 9nF, 10% threshold
on LOWDR
30
100
ns
LODRV
(1)
Propagation Delay
t
LODRVDLY
400
ns
Notes
(1) Guaranteed, but not tested.
(2) Test circuit and timing diagram.
(3) This device is ESD sensitive. Use of standard ESD handling precautions is required.
TEST CIRCUIT
TIMING DIAGRAM



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