LTC3788-1 Linear Technology, LTC3788-1 Datasheet - Page 7

• Manufacturer Part Number: LTC3788-1
• Description: Dual Output Synchronous Boost Controller
• Manufacturer: Linear Technology

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TYPICAL PERFORMANCE CHARACTERISTICS
170
160
150
140
130
120
110
100
–45
Quiescent Current vs Temperature
V
V
RUN2 = GND
IN
FB
–20
= 12V
= 1.25V
5
TEMPERATURE (°C)
5.50
5.45
5.40
5.35
5.30
5.25
5.20
5.15
5.10
5.05
5.00
5.5
5.3
5.2
5.1
5.0
4.9
4.8
4.7
4.6
4.5
5.4
0
0
30
INTV
INTV
V
IN
20
= 12V
5
55
CC
CC
40
INTV
Line Regulation
vs INTV
10
80
60
INPUT VOLTAGE (V)
CC
EXTV
15
LOAD CURRENT (mA)
EXTV
80
105
CC
CC
100
20
CC
37881 G13
= 6V
Load Current
130
= 0V
120
25
140
30
160
1.40
1.35
1.30
1.25
1.20
1.15
1.10
35
180
37881 G18
–45
37881 G16
Shutdown (RUN) Threshold
vs Temperature
200
40
–20
5
TEMPERATURE (°C)
RUN RISING
RUN FALLING
30
55
600
550
500
450
400
350
300
6.0
5.8
5.6
5.4
5.2
5.0
4.8
4.6
4.4
4.2
4.0
80
–45
–45
Oscillator Frequency
vs Temperature
EXTV
Voltages vs Temperature
105
–20
–20
CC
37881 G14
130
Switchover and INTV
5
5
TEMPERATURE (°C)
TEMPERATURE (°C)
EXTV
EXTV
FREQ = INTV
FREQ = GND
30
30
INTV
CC
CC
4.4
4.2
4.1
4.0
3.9
3.8
3.7
3.6
3.5
3.4
FALLING
4.3
RISING
CC
55
55
–45
Undervoltage Lockout Threshold
vs Temperature
CC
–20
80
80
105
105
CC
5
TEMPERATURE (°C)
37881 G17
37881 G19
INTV
INTV
LTC3788-1
130
130
30
CC
CC
FALLING
RISING
55
80
105
37881 G15
37881f
7
130