參數(shù)資料
型號(hào): LTC3408EDD
廠商: LINEAR TECHNOLOGY CORP
元件分類: 穩(wěn)壓器
英文描述: 1.5MHz, 600mA Synchronous Step-Down Regulator with Bypass Transistor
中文描述: 1.3 A SWITCHING REGULATOR, 1800 kHz SWITCHING FREQ-MAX, PDSO8
封裝: 3 X 3 MM, 0.75 MM HEIGHT, PLASTIC, M0-229-WEED-1, DFN-8
文件頁數(shù): 4/12頁
文件大?。?/td> 156K
代理商: LTC3408EDD
4
LTC3408
3408f
Output Voltage vs Load Current
R
DS(ON)
vs Input Voltage
R
DS(ON)
vs Temperature
Dynamic Supply Current
vs Supply Voltage
(From Figure 1)
TYPICAL PERFOR U
Frequency vs V
OUT
V
OUT
(V)
0
F
1600
1400
1200
1000
800
600
400
0.2
0.4
0.6
0.8
3408 G08
1.0
1.2
T
A
= 25
°
C
V
IN
= 3.6V
LOAD CURRENT (mA)
0
O
1.844
1.834
1.824
1.814
1.804
1.794
1.784
1.774
100
500
700
3408 G09
400
9001000
200 300
600
800
T
A
= 25
°
C
V
IN
= 3.6V
INPUT VOTLAGE (V)
0
0.4
0.5
0.7
3
5
3408 G10
0.3
0.2
1
2
4
6
7
0.1
0
0.6
R
D
)
T
A
= 25
°
C
MAIN
SWITCH
BYPASS
SWITCH
SYNCHRONOUS
SWITCH
TEMPERATURE (
°
C)
–50
0.4
0.5
0.7
25
75
3408 G11
0.3
0.2
–25
0
50
100
125
0.1
0
0.6
R
D
)
V
IN
= 3V
V
IN
= 4.2V
V
IN
= 4.2V
MAIN
SWITCH
BYPASS
SWITCH
SYNCHRONOUS SWITCH
V
IN
= 3.6V
V
IN
= 2.7V
SUPPLY VOLTAGE (V)
2
D
μ
A
2500
3000
3500
6
3408 G12
2000
1500
0
3
4
5
1000
500
4500
4000
T
A
= 25
°
C
V
OUT
= 1.8V
I
LOAD
= 0A
FORCED CONTINUOUS
MODE
Switch Leakage vs Temperature
Switch Leakage vs Input Voltage
Start-Up from Shutdown
TEMPERATURE (
°
C)
–50
S
200
250
300
25
75
3408 G13
150
100
–25
0
50
100
125
50
0
V
= 5.5V
RUN = 0V
MAIN SWITCH
SYNCHRONOUS SWITCH
INPUT VOLTAGE (V)
0
0
S
20
40
60
80
120
1
2
3
4
3408 G14
5
6
100
T
= 25
°
C
RUN = 0V
SYNCHRONOUS
SWITCH
MAIN
SWITCH
RUN
2V/DIV
V
OUT
1V/DIV
I
L
500mA/DIV
40
μ
s/DIV
V
IN
= 3.6V
V
REF
= 0.6V
R
LOAD
= 3
3408 G15
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