LTC3872-1_15 Datasheet, PDF (5/20 Pages) Linear Technology – No RSENSE Current Mode Boost DC/DC Controller

LTC3872-1
Typical Performance Characteristics T_A = 25°C, unless otherwise noted.
Gate Drive Rise and Fall Time
vs C_LOAD
100
90
80
70
RISE TIME
60
FALL TIME
50
40
30
20
10
0
0 2000 4000 6000 8000 10000
C_LOAD (pF)
38721 G06
RUN/SS Threshold vs V_IN
1.00
0.98
RISING
0.96
0.94
0.92
0.90
0.88
FALLING
0.86
0.84
0
2
4
6
8 10 12
V_IN (V)
38721 G07
RUN/SS Threshold vs
Temperature
1.0
0.9
RISING
0.8
FALLING
0.7
0.6
0.5
–50 –25
0 25 50 75 100 125 150
TEMPERATURE (°C)
38721 G08
Frequency vs Temperature
600
575
550
525
500
–50 –5
0 25 50 75 100 125 150
TEMPERATURE (°C)
38721 G09
Maximum Sense Threshold
vs Temperature
300
IPRG = V_IN
250
200
IPRG = FLOAT
150
IPRG = GND
100
50
0
–50 –30 –10 10 30 50 70 90 110 130 150
TEMPERATURE (°C)
38721 G10
For more information www.linear.com/LTC3872-1
38721f
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