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SC111 数据表(PDF) 2 Page - Semtech Corporation

部件名 SC111
功能描述  SINK AND SOURCE DC/DC CONTROLLER FOR TERMINATION POWER SUPPLY APPLICATIONS
PDF  7 Pages
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制造商  SEMTECH [Semtech Corporation]
网页  http://www.semtech.com
标志 SEMTECH - Semtech Corporation

SC111 数据表(HTML) 2 Page - Semtech Corporation

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SC1110
SINK AND SOURCE DC/DC CONTROLLER FOR
TERMINATION POWER SUPPLY APPLICATIONS
© 2000 SEMTECH CORP.
652 MITCHELL ROAD NEWBURY PARK CA 91320
PRELIMINARY - October 9, 2000
2
ELECTRICAL CHARACTERISTICS
Unless specified: V
CC = 4.75V to 12.6V; GND = PGND = 0V; FB = VO; VBSTL = 12V; VBSTH-PHASE = 12V; TJ = 25
oC
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
POWER SUPPLY
Supply Voltage
V
CC
4.4
12.6
V
Supply Current
EN = V
CC
8mA
Line Regulation
V
IN = 2.5 ± 0.5V, VO = VIN/2 @ 0A
0.5
%
UNDER VOLTAGE LOCKOUT
Turn-On Threshold
TBD
4.2
TBD
V
Turn-Off Threshold
TBD
4.0
TBD
V
ERROR AMPLIFIER
Transconductance
2
mS
Open Loop DC Gain
50
dB
Bandwidth -3dB
500
kHz
COMP Source Capability
±250
µA
Input Bias
58
µA
OSCILLATOR
Oscillator Frequency
225
250
275
kHz
Oscillator Max Duty Cycle
90
95
%
Ramp Height
1V
TIMING
Minimum Off-Time
100
ns
Dead Time
80
ns
ABSOLUTE MAXIMUM RATINGS
Parameter
Symbol
Maximum
Units
V
CC, BSTL to GND
V
IN
-0.5 to 14
V
PGND to GND
± 0.5
V
PHASE to GND
-0.5 to 18
V
BSTH to PHASE
14
V
Thermal Resistance Junction to Case
θ
JC
45
°C/W
Thermal Resistance Junction to Ambient
θ
JA
115
°C/W
Operating Temperature Range
T
A
0 to 70
°C
Storage Temperature Range
T
STG
-65 to +150
°C
Lead Temperature (Soldering) 10 sec
T
LEAD
300
°C



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