參數(shù)資料
型號: LTC3780EG
廠商: LINEAR TECHNOLOGY CORP
元件分類: 穩(wěn)壓器
英文描述: DIODE SCHOTTKY SINGLE 25V 200mW 0.4V-vf 200mA-IFM 10mA-IF 0.5uA-IR SOD-123 3K/REEL
中文描述: 3 A SWITCHING CONTROLLER, 440 kHz SWITCHING FREQ-MAX, PDSO24
封裝: 5.30 MM, PLASTIC, SSOP-24
文件頁數(shù): 7/28頁
文件大小: 421K
代理商: LTC3780EG
7
LTC3780
3780f
Oscillator Frequency
vs Temperature
TEMPERATURE (
°
C)
–50
0
F
50
150
200
250
50
450
3780 G19
100
0
–25
75
100
25
125
300
350
400
V
PLLFLTR
= 2.4V
V
PLLFLTR
= 1.2V
V
PLLFLTR
= 0V
TEMPERATURE (
°
C)
–50
–25
3.0
U
3.4
4.0
0
50
75
3780 G20
3.2
3.8
3.6
25
100
125
DUTY FACTOR (%)
–80
I
S
–60
–40
–20
80
60
40
20
3780 G21
0
100
Undervoltage Reset
vs Temperature
Minimum Current Sense
Threshold vs Duty Factor (Buck)
Maximum Current Sense
Threshold vs Duty Factor (Boost)
Minimum Current Sense
Threshold vs Temperature
DUTY FACTOR (%)
0
I
S
140
160
80
3780 G22
120
100
20
40
60
100
180
Maximum Current Sense
Threshold vs Duty Factor (Buck)
DUTY FACTOR (%)
110
I
S
120
130
140
20
40
60
80
3780 G23
100
0
TEMPERATURE (
°
C)
–50
50
100
200
25
75
3780 G24
0
–50
–25
0
50
100
125
–100
–150
150
M
S
BOOST
BUCK
Peak Current Threshold
vs V
ITH
(Boost)
Valley Current Threshold
vs V
ITH
(Buck)
V
ITH
(V)
0
–100
I
S
–50
0
50
100
200
0.4
0.8
1.2
1.6
3780 G25
1.8
2.4
150
V
ITH
(V)
0
–150
I
S
–100
–50
0
50
100
0.4
0.8
1.2
1.6
3780 G26
2.0
2.4
TYPICAL PERFOR U
T
A
= 25
°
C unless otherwise noted.
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參數(shù)描述
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