LTC3826_15 Datasheet, PDF (7/36 Pages) Linear Technology – 30A IQ, Dual, 2-Phase Synchronous Step-Down Controller

TYPICAL PERFORMANCE CHARACTERISTICS
LTC3826
TRACK/SS Pull-Up Current
vs Temperature
1.20
1.15
1.10
1.05
1.00
0.95
0.90
0.85
0.80
–45 –30 –15 0 15 30 45 60 75 90
TEMPERATURE (°C)
3826 G19
Sense Pins Total Input Bias
Current vs Temperature
60
30
0
–30
V_OUT = 10V
–60
V_OUT = 3.3V
–90
–120
–150
–180
–210
V_OUT = 0V
–240
–270
–300
–45 –30 –15 0 15 30 45 60 75 90
TEMPERATURE (°C)
3826 G22
Undervoltage Lockout Threshold
vs Temperature
4.2
4.1
4.0
3.9
RISING
3.8
3.7
3.6
FALLING
3.5
3.4
3.3
3.2
–45 –30 –15 0 15 30 45 60 75 90
TEMPERATURE (°C)
3826 G25
Shutdown (RUN) Threshold
vs Temperature
1.00
0.95
0.90
0.85
0.80
0.75
0.70
0.65
0.60
0.55
0.50
–45 –30 –15 0 15 30 45 60 75 90
TEMPERATURE (°C)
3826 G20
Shutdown Current
vs Input Voltage
6
5
4
3
2
1
0
5 10 15 20 25 30 35
INPUT VOLTAGE (V)
3826 G23
Oscillator Frequency
vs Input Voltage
392
390
388
386
384
382
380
5
10 15 20 25 30 35
INPUT VOLTAGE (V)
3826 G26
Regulated Feedback Voltage
vs Temperature
808
806
804
802
800
798
796
794
792
–45 –30 –15 0 15 30 45 60 75 90
TEMPERATURE (°C)
3826 G21
Oscillator Frequency
vs Temperature
800
700
600
V_PLLLPF = INTV_CC
500
400
V_PLLLPF = FLOAT
300
V_PLLLPF = GND
200
100
0
–45 –25
–5 15 35 55
TEMPERATURE (°C)
75 95
3827 G24
Shutdown Current
vs Temperature
6
5
4
3
2
1
0
–45 –30 –15 0 15 30 45 60 75 90
TEMPERATURE (°C)
3826 G27
3826fc
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