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| LTC3588-1 Datasheet, PDF (6/20 Pages) Linear Technology – Piezoelectric Energy Harvesting Power Supply | |||
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LTC3588-1
TYPICAL PERFORMANCE CHARACTERISTICS
IPEAK vs Temperature
300
290
280
270
260
250
240
230
220
210
200
â55 â35 â15 5 25 45 65 85 105 125
TEMPERATURE (°C)
35881 G16
Efï¬ciency vs ILOAD, L = 10μH
100
VIN = 5V
90
80
70
60
50
40
30
20
10
0
1μ
VOUT = 3.6V
VOUT = 3.3V
VOUT = 2.5V
VOUT = 1.8V
10μ 100μ 1m 10m 100m
LOAD CURRENT (A)
35881 G19
Efï¬ciency vs ILOAD, L = 100μH
100
VIN = 5V
90
80
70
60
50
40
30
20
10
0
1μ
VOUT = 3.6V
VOUT = 3.3V
VOUT = 2.5V
VOUT = 1.8V
10μ 100μ 1m 10m 100m
LOAD CURRENT (A)
35881 G22
6
RDS(ON) of PMOS/NMOS
vs Temperature
2.0
1.8
NMOS
1.6
1.4
PMOS
1.2
1.0
Operating Waveforms
OUTPUT
VOLTAGE
50mV/DIV
AC-COUPLED
SWITCH
VOLTAGE
2V/DIV
0V
INDUCTOR
CURRENT
200mA/DIV
0mA
0.8
â55 â35 â15 5 25 45 65 85 105 125
TEMPERATURE (°C)
35881 G17
5μs/DIV
VIN = 5V, VOUT = 3.3V
ILOAD = 1mA
L = 10μH, COUT = 47μF
Efï¬ciency vs VIN for
ILOAD = 100mA, L = 10μH
100
Efï¬ciency vs VIN for
VOUT = 3.3V, L = 10μH
95
35881 G18
90
85
80
75
70
65
60
VOUT = 3.6V
50
VOUT = 3.3V
VOUT = 2.5V
VOUT = 1.8V
40
2 4 6 8 10 12 14 16 18
VIN (V)
35881 G20
55
ILOAD = 100mA
ILOAD = 1mA
45
ILOAD = 100μA
ILOAD = 50μA
ILOAD = 10μA
35
4 6 8 10 12 14 16 18
VIN (V)
35881 G21
Efï¬ciency vs VIN for
ILOAD = 100mA, L = 100μH
100
90
80
70
60
VOUT = 3.6V
50
VOUT = 3.3V
VOUT = 2.5V
VOUT = 1.8V
40
2 4 6 8 10 12 14 16 18
VIN (V)
35881 G23
Efï¬ciency vs VIN for
VOUT = 3.3V, L = 100μH
95
85
75
65
55
ILOAD = 100mA
ILOAD = 100μA
45
ILOAD = 50μA
ILOAD = 30μA
ILOAD = 10μA
35
4 6 8 10 12 14 16 18
VIN (V)
35881 G24
35881f
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