Datasheet

LTC3546
8
3546fc
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V
IN
(V)
FREQUENCY VARIATION (%)
3.5
3546 G34
5.5
4.54.0 5.03.02.52.0
6
4
0
–4
2
–2
–6
–8
–10
FREQ 143k TO GND
FREQ TO V
IN
OUT2 R
DS(ON)
vs V
IN
OUT2 R
DS(ON)
vs V
IN
Frequency Variation vs V
IN
Frequency Variation vs
Temperature
OUT1 Minimum Peak Current
vs V
BMC1
Typical perForMance characTerisTics
V
IN
(V)
R
DS(ON)
(Ω)
3.5
3546 G32
5.5
4.54.0 5.03.02.52.0
SW1D CONNECTED TO SW2
T
A
= 27°C
0.080
0.075
0.070
0.065
0.060
0.055
0.050
P-CHANNEL IMP
N-CHANNEL IMP
V
IN
(V)
R
DS(ON)
(Ω)
3.5
3546 G33
5.5
4.54.0 5.03.02.52.0
SW1D CONNECTED TO SW1
T
A
= 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 VARIATION (%)
55
3546 G35
125
7550 1000–25–50
2
1
0
–4
–1
–2
–3
–5
–6
FREQ 143k TO GND
FREQ TO V
IN
V
BMC1
(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 0.650.35 0.55 0.85
3546 G36
0.950.75
SW1D TO SW1
SW1D TO SW2
V
IN
= 3.6V
V
BMC1
(V)
0.25
PEAK CURRENT (A)
6
5
4
2
3
1
0
0.45 0.650.35 0.55 0.85
3546 G37
0.950.75
SW1D TO SW1
SW1D TO SW2
V
IN
= 3.6V
OUT2 Minimum Peak Current
vs V
BMC2
OUT2 Efficiency vs Frequency OUT1 R
DS(ON)
vs V
IN
OUT1 R
DS(ON)
vs V
IN
FREQUENCY (MHz)
EFFICIENCY (%)
3.5
3546 G29
4.0
3.02.52.01.51.00.5
SW1D CONNECTED TO SW1
V
IN
= 3.6V
V
OUT
= 2.5V
I
LOAD
= 400mA
95
94
93
92
91
90
86
87
88
89
85
V
IN
(V)
R
DS(ON)
(Ω)
3.5
3546 G30
5.5
4.54.0 5.03.02.52.0
SW1D CONNECTED TO SW1
T
A
= 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
V
IN
(V)
R
DS(ON)
(Ω)
3.5
3546 G31
5.5
4.54.0 5.03.02.52.0
SW1D CONNECTED TO SW2
T
A
= 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