參數(shù)資料
型號(hào): LTC3714EG
廠商: LINEAR TECHNOLOGY CORP
元件分類: 穩(wěn)壓器
英文描述: Intel Compatible, Wide Operating Range, Step-Down Controller with Internal Op Amp
中文描述: 2 A SWITCHING CONTROLLER, PDSO28
封裝: 5.30 MM, PLASTIC, SSOP-28
文件頁數(shù): 5/28頁
文件大?。?/td> 345K
代理商: LTC3714EG
LTC3714
5
3714f
TYPICAL PERFOR U
Efficiency vs Load Current
Efficiency vs Input Voltage
Frequency vs Input Voltage
INPUT VOLTAGE (V)
5
F
240
260
25
3714 G05
220
200
10
15
20
300
280
I
OUT
= 10A
FCB = 0V
FIGURE 1 CIRCUIT
I
OUT
= 0A
Load Regulation
LOAD CURRENT (A)
0
V
O
–0.2
–0.1
8
3714 G06
–0.3
–0.4
2
4
6
10
0
NO AVP
FIGURE 1 CIRCUIT
I
TH
Voltage vs Load Current
LOAD CURRENT (A)
0
I
T
1.0
1.5
3714 G07
0.5
0
5
10
15
2.5
2.0
CONTINUOUS
MODE
DISCONTINUOUS
MODE
FIGURE 1 CIRCUIT
Current Sense Threshold
vs I
TH
Voltage
I
TH
VOLTAGE (V)
0
–200
C
–100
0
100
200
300
0.5
1.0
1.5
2.0
3714 G08
2.5
3.0
V
RNG
=
1V
0.7V
0.5V
1.4V
2V
Transient Response
(Discontinuous Mode)
Transient Response
V
50mV/DIV
I
L
5A/DIV
20
μ
s/DIV
3714 G01
LOAD STEP 0A TO 10A
V
IN
= 15V
V
= 1.5V
FCB = 0V
FIGURE 1 CIRCUIT
V
50mV/DIV
I
L
5A/DIV
20
μ
s/DIV
3714 G02
LOAD STEP 1A TO 10A
V
IN
= 15V
V
= 1.5V
FCB = INTV
FIGURE 1 CIRCUIT
Start-Up
RUN/SS
2V/DIV
I
L
5A/DIV
50ms/DIV
3714 G19
V
IN
= 15V
V
OUT
= 1.25V
R
LOAD
= 0.125
V
500mV/DIV
LOAD CURRENT (A)
0
E
3714 G03
3
6
9
12
15
18
21
95
90
85
80
75
70
V
IN
= 8.5V
V
= 1.35V
FREQUENCY = 300kHz
FIGURE 1 CIRCUIT
V
IN
= 15V
V
IN
= 24V
INPUT VOLTAGE (V)
0
E
100
90
80
70
60
5
10
15
20
3714 G04
25
30
I
OUT
= 10A
I
OUT
= 1A
I
OUT
= 23A
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