LTC3613 Datasheet, PDF (7/36 Pages) Linear Technology – 24V, 15A Monolithic Step Down Regulator

LTC3613
TYPICAL PERFORMANCE CHARACTERISTICS T_A = 25°C unless otherwise noted
Error Amplifier Transconductance
vs Temperature
1.80
1.75
1.70
1.65
1.60
1.55
1.50
–50 –25 0 25 50 75 100 125 150
TEMPERATURE (°C)
3613 G22
RUN Thresholds vs Temperature
1.6
1.4
SWITCHING REGION
1.2
1.0
STANDBY REGION
0.8
0.6
0.4
SHUTDOWN REGION
0.2
0
–50 –25
0 25 50 75 100 125 150
TEMPERATURE (°C)
3613 G25
Current Sense Voltage
vs ITH Voltage
120
100
80
60
40
20
0
–20
–40
–60
0
V_RNG = 0.6V
V_RNG = 0.9V
V_RNG = 1.3V
V_RNG = 1.6V
V_RNG = 2.0V
0.5
1
1.5
2
2.5
ITH VOLTAGE (V)
3613 G23
Input Undervoltage Lockout
Thresholds vs Temperature
4.5
4.3
UVLO RELEASE
(INTV_CC RISING)
4.1
3.9
UVLO LOCK
3.7
(INTV_CC FALLING)
3.5
3.3
–50 –25 0 25 50 75 100 125 150
TEMPERATURE (°C)
3613 G26
Maximum Current Sense Voltage
vs Temperature
120
100
V_RNG = 2V
80
60
V_RNG = 1V
40
V_RNG = 0.6V
20
0
–50 –25 0 25 50 75 100 125 150
TEMPERATURE (°C)
3613 G24
RUN and TRACK/SS Pull-Up
Currents vs Temperature
1.8
1.6
RUN
1.4
1.2
TRACK/SS
1.0
0.8
0.6
–50 –25 0 25 50 75 100 125 150
TEMPERATURE (°C)
3613 G27
3613fa
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