參數(shù)資料
型號(hào): LTC3546IUFD#TR
廠商: LINEAR TECHNOLOGY CORP
元件分類: 穩(wěn)壓器
英文描述: DUAL SWITCHING CONTROLLER, 4000 kHz SWITCHING FREQ-MAX, PQCC28
封裝: 4 X 5 MM, PLASTIC, MO-220, QFN-28
文件頁(yè)數(shù): 27/28頁(yè)
文件大?。?/td> 356K
代理商: LTC3546IUFD#TR
LTC3546
8
3546fb
VIN (V)
FREQUENCY
V
ARIA
TION
(%)
3.5
3546 G34
5.5
4.5
4.0
5.0
3.0
2.5
2.0
6
4
0
–4
2
–2
–6
–8
–10
FREQ 143k TO GND
FREQ TO VIN
OUT2 RDS(ON) vs VIN
Frequency Variation vs VIN
Frequency Variation vs
Temperature
OUT1 Minimum Peak Current
vs VBMC1
TYPICAL PERFORMANCE CHARACTERISTICS
VIN (V)
R
DS(ON)
(Ω)
3.5
3546 G32
5.5
4.5
4.0
5.0
3.0
2.5
2.0
SW1D CONNECTED TO SW2
TA = 27°C
0.080
0.075
0.070
0.065
0.060
0.055
0.050
P-CHANNEL IMP
N-CHANNEL IMP
VIN (V)
R
DS(ON)
(Ω)
3.5
3546 G33
5.5
4.5
4.0
5.0
3.0
2.5
2.0
SW1D CONNECTED TO SW1
TA = 27°C
0.120
0.115
0.105
0.095
0.110
0.100
0.090
0.085
0.075
0.080
0.070
P-CHANNEL IMP
N-CHANNEL IMP
TEMPERATURE (°C)
FREQUENCY
V
ARIA
TION
(%)
55
3546 G35
125
75
50
100
0
–25
–50
2
1
0
–4
–1
–2
–3
–5
–6
FREQ 143k TO GND
FREQ TO VIN
VBMC1 (V)
0.25
PEAK
CURRENT
(A)
4.0
3.5
2.5
3.0
2.0
1.0
1.5
0.5
0
0.45
0.65
0.35
0.55
0.85
3546 G36
0.95
0.75
SW1D TO SW1
SW1D TO SW2
VIN = 3.6V
VBMC1 (V)
0.25
PEAK
CURRENT
(A)
6
5
4
2
3
1
0
0.45
0.65
0.35
0.55
0.85
3546 G37
0.95
0.75
SW1D TO SW1
SW1D TO SW2
VIN = 3.6V
OUT2 Minimum Peak Current
vs VBMC2
OUT2 Efciency vs Frequency
OUT1 RDS(ON) vs VIN
FREQUENCY (MHz)
EFFICIENCY
(%)
3.5
3546 G29
4.0
3.0
2.5
2.0
1.5
1.0
0.5
SW1D CONNECTED TO SW1
VIN = 3.6V
VOUT = 2.5V
ILOAD = 400mA
95
94
93
92
91
90
86
87
88
89
85
VIN (V)
R
DS(ON)
(Ω)
3.5
3546 G30
5.5
4.5
4.0
5.0
3.0
2.5
2.0
SW1D CONNECTED TO SW1
TA = 27°C
0.120
0.115
0.105
0.095
0.110
0.100
0.090
0.085
0.075
0.080
0.070
P-CHANNEL IMP
N-CHANNEL IMP
VIN (V)
R
DS(ON)
(Ω)
3.5
3546 G31
5.5
4.5
4.0
5.0
3.0
2.5
2.0
SW1D CONNECTED TO SW2
TA = 27°C
0.24
0.23
0.21
0.19
0.22
0.20
0.18
0.17
0.16
0.15
P-CHANNEL IMP
N-CHANNEL IMP
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