SC1158 데이터 시트보기 (PDF) - Semtech Corporation
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SC1158 Datasheet PDF : 5 Pages
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PROGRAMMABLE SYNCHRONOUS DC/DC
SC1158
CONTROLLER FOR ADVANCED PROCESSORS
Preliminary - August 7, 2000
ABSOLUTE MAXIMUM RATINGS
Parameter
VCC to GND
PGND to GND
BST to GND
Thermal Resistance Junction to Case
Thermal Resistance Junction to Ambient
Operating Temperature Range
Storage Temperature Range
Lead Temperature (Soldering) 10 sec
ESD Rating (Human Body Model)
Symbol
VIN
θJC
θJA
TA
TSTG
TLEAD
ESD
Maximum
-0.3 to 7
±1
-0.3 to 15
30
130
0 to 70
-65 to +150
300
1.5
Units
V
V
V
°C/W
°C/W
°C
°C
°C
kV
ELECTRICAL CHARACTERISTICS
Unless specified: VCC = 4.75V to 5.25V; GND = PGND = 0V; FB = VO; 0mV < (CS(+) - CS(-)) < 60mV; TJ = 25oC
PARAMETER
CONDITIONS
MIN
TYP
MAX UNITS
Output Voltage
See Table 1.
Supply Voltage
Supply Current
Load Regulation
Line Regulation
VCC
VCC = 5.0
IO = 0.3A to 15A(1)
All VID codes(1)
4.5
7
V
8
15
mA
1
%
+0.15
%
Gain (AOL)
Current Limit Voltage
VOSENSE to VO
35
dB
60
70
80
mV
Oscillator Frequency
125
140
155
kHz
Buffered Reference Voltage IREF ≤=1mA
Oscillator Max Duty Cycle
1.25
V
90
95
%
DH Sink/Source Current
BSTH - DH = 4.5V, DH - PGNDH = 3V
1
A
DL Sink/Source Current
BSTL - DL = 4.5V, DL - PGNDL = 3V
1
A
Dead Time
50
100
ns
VID Pin Source current
VIDx < 2.4V
30
100
uA
NOTE:
(1) Specification refers to application circuit (Figure 1.).
(2) This device is ESD sensitive. Use of standard ESD handling precautions is required.
© 2000 SEMTECH CORP.
2
652 MITCHELL ROAD NEWBURY PARK CA 91320
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