參數(shù)資料
型號(hào): LTC3125EDCB#TRMPBF
廠商: LINEAR TECHNOLOGY CORP
元件分類: 穩(wěn)壓器
英文描述: SWITCHING REGULATOR, 1900 kHz SWITCHING FREQ-MAX, PDSO8
封裝: 3 X 2 MM, 0.75 MM HEIGHT, LEAD FREE, PLASTIC, DFN-8
文件頁(yè)數(shù): 12/16頁(yè)
文件大?。?/td> 292K
代理商: LTC3125EDCB#TRMPBF
LTC3125
5
3125f
RDS(ON) vs VOUT
RDS(ON) vs Temperature
Oscillator Frequency
vs Temperature
Feedback vs Temperature
Current Sense Voltage (VRPROG)
vs Temperature
Burst Mode Current vs VOUT
TYPICAL PERFORMANCE CHARACTERISTICS (T
A = 25°C unless otherwise noted)
VOUT and IIN During Soft-Start
VOUT (V)
1.5
RDS(ON)
(Ω)
0.400
3
3125 G12
0.250
0.150
2
2.5
3.5
0.100
0.050
0.450
0.350
0.300
0.200
4
4.5
5
PMOS
NMOS
TEMPERATURE (°C)
–50
180
200
240
10
50
3125 G13
160
140
–30
–10
30
70
90
120
100
220
R
DS(ON)
(mΩ)
PMOS
NMOS
VOUT = 4V
TEMPERATURE (°C)
–50
–10
FREQUENCY
CHANGE
(%)
–6
–2
2
–25
0
25
50
3125 G14
75
6
10
–8
–4
0
4
8
100
NORMALIZED TO 25°C
TEMPERATURE (°C)
–50
CHANGE
IN
V
FB
(%)
0
0.25
0.50
10
50
3125 G15
–0.25
–0.50
–30
–10
30
70
90
–0.75
–1.00
NORMALIZED TO 25°C
TEMPERATURE (°C)
–50
CHANGE
IN
V
FB
(%)
0
0.25
0.50
10
50
3125 G15
–0.25
–0.50
–30
–10
30
70
90
–0.75
–1.00
NORMALIZED TO 25°C
VOUT (V)
1.5
I Q
(μA)
15.0
15.5
16.0
34
3125 G17
14.5
14.0
2
2.5
3.5
4.5
5
13.5
13.0
VOUT
2V/DIV
SHDN
5V/DIV
INPUT
CURRENT
200mA/DIV
20ms/DIV
VIN = 3.3V
VOUT = 4.5V
COUT = 4.4mF
L = 2.7μH
3125 G18
BURST
CURRENT
VOUT
2V/DIV
SHDN
5V/DIV
INPUT
CURRENT
200mA/DIV
1s/DIV
VIN = 3.3V
VOUT = 4.5V
COUT = 0.47F
L = 2.7μH
3125 G19
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