LTC3788-1_1 LINER [Linear Technology], LTC3788-1_1 Datasheet - Page 7

• Manufacturer Part Number: LTC3788-1_1
• Description: 2-Phase, Dual Output Synchronous Boost Controller
• Manufacturer: LINER [Linear Technology]

TYPICAL PERFORMANCE CHARACTERISTICS
170
160
150
140
130
120
110
100
600
550
500
450
400
350
300
5.5
5.3
5.2
5.1
5.0
4.9
4.8
4.7
4.6
4.5
5.4
–45
–45
0
Quiescent Current vs Temperature
INTV
Oscillator Frequency
vs Temperature
V
V
RUN2 = GND
IN
FB
–20
= 12V
= 1.25V
5
–20
CC
Line Regulation
10
5
5
INPUT VOLTAGE (V)
TEMPERATURE (°C)
TEMPERATURE (°C)
FREQ = INTV
15
FREQ = GND
30
30
20
55
55
25
CC
80
80
30
105
105
35
37881 G13
37881 G16
37881 G19
130
130
40
1.40
1.35
1.30
1.25
1.20
1.15
1.10
360
356
354
352
350
348
346
344
342
340
6.0
5.8
5.6
5.4
5.2
5.0
4.8
4.6
4.4
4.2
4.0
358
–45
–45
5
EXTV
Voltages vs Temperature
Shutdown (RUN) Threshold
vs Temperature
Oscillator Frequency
vs Input Voltage
FREQ = GND
–20
–20
10
CC
Switchover and INTV
15
5
5
TEMPERATURE (°C)
INPUT VOLTAGE (V)
TEMPERATURE (°C)
EXTV
EXTV
RUN RISING
RUN FALLING
30
20
30
INTV
CC
CC
FALLING
RISING
CC
55
25
55
80
30
80
105
105
CC
35
37881 G17
37881 G14
37881 G20
130
130
40
5.50
5.45
5.40
5.35
5.30
5.25
5.20
5.15
5.10
5.05
5.00
120
100
–20
–40
–60
4.4
4.2
4.1
4.0
3.9
3.8
3.7
3.6
3.5
3.4
4.3
80
60
40
20
0
–45
0
INTV
0
Undervoltage Lockout Threshold
vs Temperature
Maximum Current Sense
Threshold vs I
V
IN
20
–20
= 12V
0.2
CC
PULSE-SKIPPING MODE
FORCED CONTINUOUS MODE
Burst Mode OPERATION
40
INTV
vs INTV
0.4
5
60
TEMPERATURE (°C)
CC
EXTV
INTV
INTV
I
LTC3788-1
TH
LOAD CURRENT (mA)
EXTV
80
0.6
30
VOLTAGE (V)
CC
TH
CC
CC
CC
100
CC
FALLING
RISING
= 6V
Voltage
Load Current
= 0V
0.8
55
120
140
80
1.0
160
105
1.2
180
37881fa
37881 G18
37881 G15
37881 G21
7
130
200
1.4