LTC3786_15 Datasheet, PDF (6/34 Pages) Linear Technology – Low IQ Synchronous Boost Controller

LTC3786
Typical Performance Characteristics
Regulated Feedback Voltage
vs Temperature
1.212
1.209
1.206
1.203
1.200
1.197
1.194
1.191
1.188
–45 –20
5 30 55 80
TEMPERATURE (°C)
105 130
3786 G09
Shutdown Current
vs Input Voltage
20
15
10
5
0
0 5 10 15 20 25 30 35 40
INPUT VOLTAGE (V)
3786 G12
Undervoltage Lockout Threshold
vs Temperature
4.4
4.3
4.2
INTV_CC RISING
4.1
4.0
3.9
3.8
INTV_CC FALLING
3.7
3.6
3.5
3.4
–45 –20
5 30 55 80 105 130
TEMPERATURE (°C)
3786 G15
6
Soft-Start Pull-Up Current
vs Temperature
11.0
10.5
10.0
9.5
9.0
–45 –20
5 30 55 80
TEMPERATURE (°C)
105 130
3786 G10
Quiescent Current vs Temperature
80
V_IN = 12V
V_FB = 1.25V
70
60
50
40
30
20
–45 –20
5 30 55 80
TEMPERATURE (°C)
105 130
3786 G13
INTV_CC Line Regulation
5.5
NO LOAD
5.4
5.3
5.2
5.1
5.0
4.9
4.8
4.7
4.6
4.5
0 5 10 15 20 25 30
INPUT VOLTAGE (V)
35 40
3786 G16
Shutdown Current vs Temperature
11.0
10.5 ^{VIN = 12V}
10.0
9.5
9.0
8.5
8.0
7.5
7.0
6.5
6.0
5.5
5.0
–45 –20 5 30 55 80 105 130
TEMPERATURE (°C)
3786 G11
Shutdown (RUN) Threshold
vs Temperature
1.40
1.35
1.30
RUN RISING
1.25
1.20
RUN FALLING
1.15
1.10
–45 –20
5 30 55 80
TEMPERATURE (°C)
105 130
3786 G14
INTV_CC Line Regulation
5.5
NO LOAD
5.4
5.3
5.2
5.1
5.0
4.9
4.8
4.7
4.6
4.5
4.5
4.75 5.0 5.25 5.5
INPUT VOLTAGE (V)
5.75 6.0
3786 G17
3786fa