LTC3865-1_15 Datasheet, PDF (8/38 Pages) Linear Technology – Dual, 2-Phase Synchronous DC/DC Controller with Pin Selectable Outputs

LTC3865/LTC3865-1
TYPICAL PERFORMANCE CHARACTERISTICS
Shutdown (RUN) Threshold
vs Temperature
1.5
1.4
1.3
ON
1.2
OFF
1.1
1.0
–50 –25
0 25 50 75
TEMPERATURE (°C)
100 125
3865 G15
Regulated Feedback Voltage
vs Temperature
0.608
0.606
0.604
0.602
0.600
0.598
0.596
–50 –25
0 25 50 75
TEMPERATURE (°C)
100 125
3865 G16
Oscillator Frequency
vs Temperature
1000
900
V_FREQ = INTV_CC
800
700
600
V_FREQ = 1.2V
500
400
300
V_FREQ = 0V
200
100
–50 –25
0 25 50 75
TEMPERATURE (°C)
100 125
3865 G17
Undervoltage Lockout Threshold
(INTV_CC) vs Temperature
5
4
RISING
FALLING
3
2
1
0
–50 –25
0 25 50 75
TEMPERATURE (°C)
100 125
3865 G18
Oscillator Frequency
vs Input Voltage
550
540
530
520
510
500
490
480
470
460
450
4
10 16 22 28
INPUT VOLTAGE (V)
34 40
3865 G19
Shutdown Current
vs Input Voltage
50
40
30
20
10
0
0 5 10 15 20 25 30 35 40
INPUT VOLTAGE (V)
3865 G20
Shutdown Current vs Temperature
50
V_IN = 15V
Quiescent Current vs Temperature
without EXTV_CC
5
V_IN = 15V
40
4
30
3
20
2
10
1
8
0
–50 –25
0 25 50 75
TEMPERATURE (°C)
100 125
3865 G21
0
–50 –25
0 25 50 75
TEMPERATURE (°C)
100 125
3865 G22
3865fb