LTC3331_15 Datasheet, PDF (8/34 Pages) Linear Technology – Nanopower Buck-Boost DC/DC with Energy Harvesting Battery Charger

LTC3331
TYPICAL PERFORMANCE CHARACTERISTICS T_A = 25°C, unless otherwise noted.
3V Output vs Temperature
3.05
SLEEP THRESHOLD
3.00
WAKE-UP THRESHOLD
2.95
2.90
2.85
2.80
PGVOUT FALLING
2.75
2.70
–50 –25
0 25 50 75
TEMPERATURE (°C)
100 125
3331 G13
4.5V Output vs Temperature
4.60
4.55
SLEEP THRESHOLD
4.50
4.45
WAKE-UP THRESHOLD
4.40
4.35
4.30
4.25
4.20
PGVOUT FALLING
4.15
4.10
–50 –25
0 25 50 75
TEMPERATURE (°C)
100 125
3331 G16
Buck-Boost Peak Current vs
Temperature, 5mA I_PEAK Setting
6.0
BB_IN = 3.6V
5.8
5.6
5.4
5.2
5.0
4.8
4.6
4.4
4.2
4.0
–50 –25
0 25 50 75
TEMPERATURE (°C)
100 125
3331 G19
3.3V Output vs Temperature
3.35
SLEEP THRESHOLD
3.30
WAKE-UP THRESHOLD
3.25
3.20
3.15
3.10
3.05
PGVOUT FALLING
3.00
–50 –25
0 25 50 75
TEMPERATURE (°C)
100 125
3331 G14
5V Output vs Temperature
5.10
SLEEP THRESHOLD
5.00
WAKE-UP THRESHOLD
4.90
4.80
4.70
PGVOUT FALLING
4.60
4.50
–50 –25
0 25 50 75
TEMPERATURE (°C)
100 125
3331 G17
R_DS(ON) of Buck-Boost PMOS/NMOS
vs Temperature, 250mA I_PEAK Setting
1.40
PMOS, BB_IN = 2.1V
1.30
NMOS, BB_IN = 2.1V
1.20
PMOS, BB_IN = 4.2V
NMOS, BB_IN = 4.2V
1.10
1.00
0.90
0.80
0.70
0.60
0.50
0.40
–50 –25
0 25 50 75 100 125
TEMPERATURE (°C)
3331 G20
3.6V Output vs Temperature
3.65
SLEEP THRESHOLD
3.60
WAKE-UP THRESHOLD
3.55
3.50
3.45
3.40
3.35
PGVOUT FALLING
3.30
3.25
–50 –25
0 25 50 75
TEMPERATURE (°C)
100 125
3331 G15
Buck-Boost Peak Current vs
Temperature, 250mA I_PEAK Setting
300
BB_IN = 3.6V
290
280
270
260
250
240
230
220
210
200
–50 –25
0 25 50 75
TEMPERATURE (°C)
100 125
3331 G18
R_DS(ON) of Buck-Boost PMOS/NMOS
vs Temperature, 5mA I_PEAK Setting
55
PMOS, BB_IN = 2.1V
50
NMOS, BB_IN = 2.1V
45
PMOS, BB_IN = 4.2V
NMOS, BB_IN = 4.2V
40
35
30
25
20
15
10
5
0
–50 –25
0 25 50 75 100 125
TEMPERATURE (°C)
3331 G21
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