參數(shù)資料
型號: LTC3738CUHF
廠商: LINEAR TECHNOLOGY CORP
元件分類: 穩(wěn)壓器
英文描述: 3-Phase Buck Controller for Intel VRM9/VRM10 with Active Voltage Positioning
中文描述: 5 A SWITCHING CONTROLLER, 630 kHz SWITCHING FREQ-MAX, PQCC38
封裝: 7 X 5 MM, PLASTIC, M0-220WHKD, QFN-38
文件頁數(shù): 5/32頁
文件大?。?/td> 316K
代理商: LTC3738CUHF
5
LTC3738
3738f
TYPICAL PERFOR U
Efficiency vs I
OUT
INDUCTOR CURRENT (A)
0.1
0
E
20
30
40
50
60
70
1
10
3738 G01
80
90
100
10
100
V
FCB/SYNC
= 5V
V
FCB/SYNC
= 0V
V
IN
= 12V
V
OUT
= 1.2V
FREQUENCY = 210kHz
V
FCB/SYNC
= OPEN
V
IN
(V)
4
85
E
86
88
89
90
92
5
9
11
3733 G02
87
91
8
13 14
6
7
10
12
I
L
= 20A
I
L
= 50A
V
= 12V
FREQUENCY = 210kHz
FREQUENCY (kHz)
200
E
87
88
89
350
450
3738 G03
86
85
84
250
300
400
90
91
92
500
V
IN
= 5V
V
IN
= 10V
V
IN
= 14V
V
IN
= 12V
V
OUT
= 1.2V
I
LOAD
= 20A
Efficiency vs V
IN
Efficiency vs Frequency
Reference Voltage
vs Temperature
Error Amplifier g
m
vs Temperature
Maximum I
SENSE
Threshold
vs Temperature
TEMPERATURE (
°
C)
–45
590
R
610
45
3738 G04
595
605
600
–30
90
0
–15
15
75
30
60
TEMPERATURE (
°
C)
–45
2.0
E
m
4.0
45
3738 G05
2.5
3.5
3.0
–30
90
0
–15
15
75
30
60
TEMPERATURE (
°
C)
–45
65
M
S
85
45
3738 G06
70
80
75
–30
90
0
–15
15
75
30
60
V
O
= 1.85V
V
O
= 0.8V
Oscillator Frequency
vs Temperature
Oscillator Frequency vs V
PLLFLTR
Undervoltage Reset Voltage
vs Temperature
TEMPERATURE (
°
C)
–45
100
F
600
550
500
450
400
350
300
45
3738 G07
150
250
200
–30
90
0
–15
15
75
30
60
V
PLLFLTR
= 2.4V
V
PLLFLTR
= 1.2V
V
PLLFLTR
= 0V
V
PLLFLTR
= 5V
V
PLLFLTR
(V)
0
200
F
550
500
450
400
350
300
3738 G08
250
1.6
2.4
0.8
0.4
1.2
2.0
TEMPERATURE (
°
C)
–45
3.0
U
5.0
45
3738 G09
3.5
4.5
4.0
–30
90
0
–15
15
75
30
60
T
A
= 25
°
C unless otherwise noted.
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