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LTC1553LCSW 데이터시트(PDF) 5 Page - Linear Technology

부품명 LTC1553LCSW
상세설명  5-Bit Programmable Synchronous Switching Regulator Controller for Pentium II Processor
PDF  20 Pages
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제조업체  LINER [Linear Technology]
홈페이지  http://www.linear.com
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LTC1553LCSW 데이터시트(HTML) 5 Page - Linear Technology

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LTC1553L
TYPICAL PERFORMANCE CHARACTERISTICS
Soft Start Source Current
vs Temperature
Oscillator Frequency
vs Temperature
IMAX Sink Current
vs Temperature
VCC Shutdown Supply Current
vs Temperature
VCC Operating Supply Current
vs Temperature
Output Over Current Protection
50mV/DIV
5A/DIV
100
µs/DIV
1553L G18
Transient Response
TEMPERATURE (
°C)
–50
250
260
280
290
300
350
320
0
50
75
1553L G10
270
330
340
310
–25
25
100
125
TEMPERATURE (
°C)
–50
150
160
170
180
220
200
–25
25
50
125
1553L G11
210
190
0
75
100
TEMPERATURE (
°C)
–50
–9
–8
25
75
1553L G12
–10
–11
–25
0
50
100
125
–12
–13
–14
–15
TEMPERATURE (
°C)
–50
25
75
1553L G13
–25
0
50
100
125
88
90
92
86
84
82
80
78
OSCILLATOR FREQUENCY = 300kHz
G1, G2 CAPACITANCE = 1100pF
5500pF
7700pF
2200pF
3300pF
Maximum G1 Duty Cycle
vs Temperature
TEMPERATURE (
°C)
–50
0.9
1.0
1.2
25
75
1553L G14
0.8
0.7
–25
0
50
100
125
0.6
0.5
1.1
VCC = 5V
fOSC = 300kHz
TEMPERATURE (
°C)
–50
225
25
1553L G15
150
100
–25
0
50
75
50
250
200
175
125
75
100
125
PVCC Supply Current
vs Gate Capacitance
GATE CAPACITANCE (pF)
0
40
50
60
6000
1553L G16
30
20
2000
4000
8000
10
0
70
PVCC = 12V
TA = 25°C
OUTPUT CURRENT (A)
0
0
0.5
1.5
2.0
2.5
4
8
10
18
1553L G17
1.0
26
12
14
16
3.0
Q1 CASE = 90
°C, VOUT = 2.8V
Q1 = 2
× MTD20N03HDL
Q2 = 1
× MTD20N03HDL
RIMAX = 2.7k, RIFB = 20Ω,
SS CAP = 0.01
µF
SHORT-CIRCUIT
CURRENT



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