參數(shù)資料
型號: LTC3642IMS8E-3.3E#PBF
廠商: LINEAR TECHNOLOGY CORP
元件分類: 穩(wěn)壓器
英文描述: 0.13 A SWITCHING REGULATOR, PDSO8
封裝: LEAD FREE, PLASTIC, MSOP-8
文件頁數(shù): 16/20頁
文件大?。?/td> 306K
代理商: LTC3642IMS8E-3.3E#PBF
LTC3642
5
3642fa
TYPICAL PERFORMANCE CHARACTERISTICS
Switch On-Resistance
vs Input Voltage
Switch On-Resistance
vs Temperature
Switch Leakage Current
vs Temperature
Efciency vs Input Voltage
Run Comparator Thresholds
vs Temperature
Internal Soft-Start Time
vs Temperature
Soft-Start Waveforms
Operating Waveforms
Load Step Transient Response
VIN VOLTAGE (V)
0
SWITCH
ON-RESIST
ANCE
(Ω)
0.5
1.5
2.0
2.5
20
40
50
4.5
3642 G10
1.0
10
30
TOP
BOTTOM
3.0
3.5
4.0
TEMPERATURE (°C)
–40
SWITCH
ON-RESISTANCE
(Ω)
3
4
5
80
3642 G11
2
1
0
–10
20
50
110
BOTTOM
VIN = 10V
TOP
TEMPERATURE (°C)
0
SWITCH
LEAKAGE
CURRENT
(μA)
0.2
0.4
0.6
0.1
0.3
0.5
–10
20
50
80
3642 G12
110
–40
VIN = 45V
SW = 0V
SW = 45V
TEMPERATURE (°C)
–40
1.00
RUN
COMPARATOR
THRESHOLD
(V)
1.05
1.10
1.15
1.20
1.30
–10
20
50
80
3642 G14
110
1.25
RISING
FALLING
TEMPERATURE (°C)
–40
0.90
INTERNAL
SOFT-START
TIME
(ms)
0.95
1.00
1.05
1.10
1.20
–10
20
50
80
3642 G15
110
1.15
OUTPUT
VOLTAGE
1V/DIV
INDUCTOR
CURRENT
50mA/DIV
500μs/DIV
VIN = 10V
CSS = 0.047μF
ISET OPEN
FIGURE 10 CIRCUIT
4632 G16
OUTPUT
VOLTAGE
50mV/DIV
SWITCH
VOLTAGE
5V/DIV
INDUCTOR
CURRENT
50mA/DIV
10μs/DIV
VIN = 10V
ISET OPEN
FIGURE 10 CIRCUIT
4632 G17
OUTPUT
VOLTAGE
25mV/DIV
LOAD
CURRENT
25mA/DIV
1ms/DIV
VIN = 10V
ISET OPEN
FIGURE 10 CIRCUIT
4632 G18
INPUT VOLTAGE (V)
10
65
EFFICIENCY
(%)
70
75
80
85
90
95
15
20
25
30
35
40
3642 G13
45
FIGURE 10 CIRCUIT
ISET OPEN
ILOAD = 50mA
ILOAD = 10mA
ILOAD = 1mA
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