LTC3717 Datasheet, PDF (5/20 Pages) Linear Technology – Wide Operating Range, No RSENSE Step-Down Controller for DDR/QDR Memory Termination

TYPICAL PERFOR A CE CHARACTERISTICS
LTC3717
INTV_CC Load Regulation
0
–0.1
–0.2
–0.3
–0.4
–0.5
0
10
20
30
40
INTV_CC LOAD CURRENT (mA)
50
3717 G14
RUN/SS Latchoff Thresholds
vs Temperature
3
2
PULL-DOWN CURRENT
1
0
PULL-UP CURRENT
–1
–2
–50 –25
0 25 50 75
TEMPERATURE (°C)
100 125
3717 G15
RUN/SS Latchoff Thresholds
vs Temperature
5.0
4.5
LATCHOFF ENABLE
4.0
3.5
LATCHOFF THRESHOLD
3.0
–50 –25
0 25 50 75
TEMPERATURE (°C)
100 125
3717 G16
Undervoltage Lockout Threshold
vs Temperature
4.0
3.5
3.0
2.5
2.0
–50 –25
0 25 50 75
TEMPERATURE (C)
100 125
3717 G17
Maximum Current Sense Threshold
vs V_RNG Voltage
300
250
200
150
100
50
0
0.50 0.75 1.00 1.25 1.50
V_RNG (V)
1.75 2.00
3717 G18
Maximum Current Sense Threshold
vs RUN/SS Voltage, V_RNG = 1V
160
140
120
100
80
60
40
20
0
2.0 2.2 2.4 2.6 2.8 3.0 3.2 3.4 3.6
RUN/SS (V)
3717 G19
Maximum Current Sense Threshold
vs Temperature, V_RNG = 1V
180
160
140
120
100
80
60
40
20
0
–50 –30 –10 10 30 50 70 90 110 130
TEMPERATURE (°C)
3717 G20
Error Amplifier gm
vs Temperature
1.50
1.40
1.30
1.20
1.10
1.00
0.90
0.80
0.70
–50 –30 –10 10 30 50 70 90 110 130
TEMPERATURE (°C)
3717 G21
sn3717 3717fs
5