LTC3331_15 Datasheet, PDF (7/34 Pages) Linear Technology – Nanopower Buck-Boost DC/DC with Energy Harvesting Battery Charger

LTC3331
TYPICAL PERFORMANCE CHARACTERISTICS T_A = 25°C, unless otherwise noted.
V_OUT Quiescent Current
vs Temperature
150
V_OUT IN REGULATION, SLEEPING
140
130
120
110
100
90
80
70
60
50
–50 –25
0 25 50 75
TEMPERATURE (°C)
100 125
3331 G04
Total Bridge Rectifier Drop
vs Bridge Current
1800
|V_AC1 – V_AC2| – V_IN
1600
1400
1200
–40°C
1000
25°C
800
85°C
600
125°C
400
200
0
1µ
10µ 100µ 1m 10m
BRIDGE CURRENT (A)
3331 G07
1.8V Output vs Temperature
1.84
1.82
SLEEP THRESHOLD
1.80
1.78
WAKE-UP THRESHOLD
1.76
1.74
1.72
1.70
1.68
PGVOUT FALLING
1.66
1.64
–50 –25
0 25 50 75
TEMPERATURE (°C)
100 125
3331 G10
UVLO Threshold vs Temperature
103
APPLIES TO EACH UVLO SETTING
102
101
100
99
98
97
–50 –25
0 25 50 75
TEMPERATURE (°C)
100 125
3331 G05
Bridge Leakage vs Temperature
20
V_IN = 18V, LEAKAGE AT AC1 OR AC2
18
16
14
12
10
8
6
4
2
0
–55 –10 35
80
125 170
TEMPERATURE (°C)
3331 G08
2.5V Output vs Temperature
2.55
SLEEP THRESHOLD
2.50
WAKE-UP THRESHOLD
2.45
2.40
2.35
2.30
2.25
–50 –25
PGVOUT FALLING
0 25 50 75
TEMPERATURE (°C)
100 125
3331 G11
V_SHUNT vs Temperature
21.0
20.8
20.6
20.4
20.2
I_SHUNT = 25mA
20.0
I_SHUNT = 1mA
19.8
19.6
19.4
19.2
19.0
–50 –25
0 25 50 75
TEMPERATURE (°C)
100 125
3331 G06
Bridge Frequency Response
2.0
4.8V_P-P APPLIED TO AC1/AC2 INPUT
1.8 MEASURED IN UVLO
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0
10 100 1k 10k 100k 1M 10M 100M
FREQUENCY (Hz)
3331 G09
2.8V Output vs Temperature
2.85
SLEEP THRESHOLD
2.80
WAKE-UP THRESHOLD
2.75
2.70
2.65
2.60
PGVOUT FALLING
2.55
–50 –25
0 25 50 75
TEMPERATURE (°C)
100 125
3331 G12
For more information www.linear.com/LTC3331
3331fb
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