LTC3330_15 Datasheet, PDF (10/32 Pages) Linear Technology – Nanopower Buck-Boost DC/DC with Energy Harvesting Battery Life Extender

LTC3330
TYPICAL PERFORMANCE CHARACTERISTICS ^TA ^{= 25°C, unless otherwise noted.}
Buck Efficiency vs V_IN, for
V_OUT = 3.3V
100
L = 22µH, DCR = 0.19Ω
90
80
70
60
50
40
30 LOAD CURRENT
20
100mA
100µA
10
50µA
30µA
0
4 6 8 10
20µA
10µA
5µA
12 14
V_IN (V)
16 18
3330 G37
Buck-Boost Efficiency vs BAT for
V_OUT = 1.8V, 250mA I_PEAK Setting
100
L = 22µH, DCR = 0.36Ω
90
80
70
60
LOAD CURRENT
50
50mA
100µA
50µA
20µA
10µA
5µA
40
1.8 2.2 2.6 3 3.4 3.8 4.2
BAT (V)
4.6 5
3330 G40
Buck-Boost Efficiency vs BAT for
V_OUT = 1.8V, 5mA I_PEAK Setting
100
L = 1000µH, DCR = 5.1Ω
90
80
70
60
LOAD CURRENT
50
1mA
50µA
10µA
40
1.8 2.2 2.6 3
100µA
20µA
5µA
3.4 3.8 4.2
BAT (V)
4.6 5
3330 G43
Buck-Boost Efficiency vs I_LOAD,
250mA I_PEAK Setting
100
90
80
70
60
50
40
30 _{VOUT SETTING}
20
1.8V
2.5V
10
3.3V
5V
0
1µ
10µ 100µ
BAT = 3.6V
L = 22µH
DCR = 0.36Ω
1m
10m
I_LOAD (A)
3330 G38
Buck-Boost Efficiency vs BAT for
V_OUT = 3.3V, 250mA I_PEAK Setting
100
L = 22µH, DCR = 0.36Ω
90
80
70
60
LOAD CURRENT
50
50mA
100µA
50µA
20µA
10µA
5µA
40
1.8 2.2 2.6 3 3.4 3.8 4.2
BAT (V)
4.6 5
3330 G41
Buck-Boost Efficiency vs BAT for
V_OUT = 3.3V, 5mA I_PEAK Setting
100
L = 1000µH, DCR = 5.1Ω
90
80
70
60
LOAD CURRENT
50
1mA
50µA
10µA
40
1.8 2.2 2.6 3
100µA
20µA
5µA
3.4 3.8 4.2
BAT (V)
4.6 5
3330 G44
10
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Buck-Boost Efficiency vs I_LOAD,
5mA I_PEAK Setting
100
90
80
70
60
50
40
30 _{VOUT SETTING}
20
1.8V
2.5V
10
3.3V
5V
0
1µ
10µ
100µ
I_LOAD (A)
BAT = 3.6V
L = 1000µH
DCR = 5.1Ω
1m
3330 G39
Buck-Boost Efficiency vs BAT for
V_OUT = 5V, 250mA I_PEAK Setting
100
L = 22µH, DCR = 0.36Ω
90
80
70
60
LOAD CURRENT
50
50mA
50µA
10µA
40
1.8 2.2 2.6 3
100µA
20µA
5µA
3.4 3.8 4.2
BAT (V)
4.6 5
3330 G42
Buck-Boost Efficiency vs BAT for
V_OUT = 5V, 5mA I_PEAK Setting
100
L = 1000µH, DCR = 5.1Ω
90
80
70
60
LOAD CURRENT
50
1mA
50µA
10µA
40
1.8 2.2 2.6 3
100µA
20µA
5µA
3.4 3.8 4.2
BAT (V)
4.6 5
3330 G45
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