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SC1183CSW 数据表(PDF) 2 Page - Semtech Corporation

部件名 SC1183CSW
功能描述  PROGRAMMABLE SYNCHRONOUS DC/DC CONVERTER, DUAL LOW DROPOUT REGULATOR CONTROLLER
PDF  12 Pages
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制造商  SEMTECH [Semtech Corporation]
网页  http://www.semtech.com
标志 SEMTECH - Semtech Corporation

SC1183CSW 数据表(HTML) 2 Page - Semtech Corporation

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PROGRAMMABLE SYNCHRONOUS DC/DC
CONVERTER, DUAL LOW DROPOUT
REGULATOR CONTROLLER
© 1998 SEMTECH CORP.
August 25, 1998
652 MITCHELL ROAD NEWBURY PARK CA 91320
SC1182/3
2
Parameter
Symbol
Maximum
Units
V
CC to GND
V
IN
-0.3 to +7
V
PGND to GND
± 1
V
BST to GND
-0.3 to +15
V
Operating Temperature Range
T
A
0 to +70
°C
Junction Temperature Range
T
J
0 to +125
°C
Storage Temperature Range
T
STG
-65 to +150
°C
Lead Temperature (Soldering) 10 seconds
T
L
300
°C
Thermal Impedance Junction to Ambient
θ
JA
80
°C/W
Thermal Impedance Junction to Case
θ
JC
25
°C/W
ABSOLUTE MAXIMUM RATINGS
ELECTRICAL CHARACTERISTICS
Unless specified: V
CC = 4.75V to 5.25V; GND = PGND = 0V; VOSENSE = VO; 0mV < (CSp-CSm) < 60mV; LDOV = 11.4V to 12.6V; TA = 25°C
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
Switching Section
Output Voltage
I
O = 2A
See Note 1.
Supply Voltage
V
CC
4.2
7
V
Supply Current
V
CC = 5.0
8
15
mA
Load Regulation
I
O = 0.8A to 15A
1
%
Line Regulation
0.5
%
Minimum operating voltage
4.2
V
Current Limit Voltage
60
70
80
mV
Oscillator Frequency
180
200
220
kHz
Oscillator Max Duty Cycle
90
95
%
Peak DH Sink/Source Current
BSTH-DH = 4.5V, DH-PGNDH = 2V
1
A
Peak DL Sink/Source Current
BSTL-DL = 4.5V, DL-PGNDL = 2V
1
A
Output Voltage Tempco
30
100
ppm/
oC
Gain (A
OL)VOSENSE to VO
35
dB
OVP threshold voltage
120
%
OVP source current
V
OVP = 3.0V
10
mA
Power good threshold voltage
88
112
%
Dead time
50
100
ns
Linear Sections
Quiescent current
LDOV = 12V
5
mA
Output Voltage (LDO1 SC1182)
2.475 2.500 2.525
V
Output Voltage (LDO2 SC1182)
1.485 1.500 1.515
V
Reference Voltage (SC1183)
1.252 1.265 1.278
V
Feedback Pin Bias Current (SC1183)
10
uA
Gain (A
OL)
LDOS (1,2) to GATE (1,2)
90
dB
Load Regulation
I
O = 0 to 8A
(2)
0.3
%
Line Regulation
0.3
%
Output Impedance
200
Ω
Notes: (1) See Output Voltage table.
(2) In application circuit.



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