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LTC1553LCSW 数据表(PDF) 4 Page - Linear Technology

部件名 LTC1553LCSW
功能描述  5-Bit Programmable Synchronous Switching Regulator Controller for Pentium II Processor
PDF  20 Pages
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制造商  LINER [Linear Technology]
网页  http://www.linear.com
标志 LINER - Linear Technology

LTC1553LCSW 数据表(HTML) 4 Page - Linear Technology

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4
LTC1553L
TYPICAL PERFORMANCE CHARACTERISTICS
Typical 2.8V VOUT Distribution
Load Regulation
Over-Temperature Trip Point
vs Temperature
Efficiency vs Load Current
Line Regulation
Output Temperature Drift
Error Amplifier Open-Loop
DC Gain vs Temperature
Over-Temperature Driver Disable
vs Temperature
Error Amplifier Transconductance
vs Temperature
OUTPUT VOLTAGE (V)
2.775
0
20
60
80
100
140
1553L G01
40
120
2.795
2.825
2.785
2.805
2.815
TOTAL SAMPLE SIZE = 1500
25
°C
100
°C
LOAD CURRENT (A)
0
60
80
100
4
1533L G02
40
20
50
70
90
A
30
10
0
0.3
2
6
8
10
12
14
B
REFER TO TYPICAL APPLICATION
CIRCUIT FIGURE 1
VIN = 5V, PVCC = 12V, VOUT = 2.8V,
COUT = 330µF ×7, LO = 2µH
A: Q1 = 1
× SUD50N03-10
Q2 = 1
× SUD50N03-10
B: Q1 = 2
× SUD50N03-10
Q2 = 1
× SUD50N03-10
NO FAN
Q1 IS MOUNTED ON 1IN2 COPPER AREA
OUTPUT CURRENT (A)
0
2.825
4
1533L G03
2.820
2.815
2.810
2.805
2.800
2.795
2.790
2.785
2.780
2.775
1 2 3
5 6789 10 11 12 13 14
REFER TO TYPICAL APPLICATION
CIRCUIT FIGURE 1
VIN = 5V, PVCC = 12V, TA = 25°C
INPUT VOLTAGE (V)
4.75
2.825
2.820
2.815
2.810
2.805
2.800
2.795
2.790
2.785
2.780
2.775
5.15
1553L G04
4.85
4.95
5.05
5.25
REFER TO TYPICAL APPLICATION
CIRCUIT FIGURE 1
OUTPUT = NO LOAD
TA = 25°C
TEMPERATURE (
°C)
–50
2.860
2.850
2.840
2.830
2.820
2.810
2.800
2.790
2.780
2.770
2.750
2.660
2.740
0
50
75
1553L G05
–25
25
100
125
TEMPERATURE (
°C)
–50
1.96
2.08
2.10
2.12
0
50
75
1553L G06
1.92
2.04
2.00
1.94
2.06
1.90
2.02
1.98
–25
25
100
125
TEMPERATURE (
°C)
–50
1.60
1.62
1.66
1.68
1.70
1.80
1.74
0
50
75
1553L G07
1.64
1.76
1.78
1.72
–25
25
100
125
TEMPERATURE (
°C)
–50
1.7
1.9
2.3
25
75
1553L G08
1.5
1.3
–25
0
50
100
125
1.1
0.9
2.1
TEMPERATURE (
°C)
–50
40
45
50
55
60
–25
0
25
50
1553L G09
75
100
125



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