LTC3810-5 Datasheet, PDF (6/36 Pages) Linear Technology – 60V Current Mode Synchronous Switching Regulator Controller

LTC3810-5
TYPICAL PERFORMANCE CHARACTERISTICS
Frequency vs Load Current
350
300 _FORCED
CONTINUOUS
250
200
150
PULSE SKIP
100
50
0
0
1
2
3
4
5
LOAD CURRENT (A)
38105 G10
On-Time vs V_ON Voltage
700
600
500
400
300
200
100
I_ON = 300μA
0
0 0.5 1 1.5 2 2.5 3
V_ON VOLTAGE (V)
38105 G13
Maximum Current Sense
Threshold vs V_RNG Voltage
400
300
200
100
0
0.5
1
1.5
2
V_RNG VOLTAGE (V)
38105 G16
Current Sense Threshold
vs I_TH Voltage
400
V_RNG = 2V
300
200
1.4V
1V
100
0.7V
0.5V
0
–100
–200
–300
–400
0
0.5 1.0 1.5 2.0 2.5 3.0
I_TH VOLTAGE (V)
38105 G11
On-Time vs Temperature
680
660
640
620
600
580
560
–50 –25
I_ON = 300μA
0 25 50 75 100 125
TEMPERATURE (°C)
38105 G14
Maximum Current Sense
Threshold vs Temperature
230
220
210
200
190
180
–50 –25
V_RNG = INTV_CC
0 25 50 75 100 125
TEMPERATURE (°C)
38105 G17
On-Time vs I_ON Current
10000
V_ON = INTV_CC
1000
100
10
10
100
1000
I_ON CURRENT (μA)
Current Limit Foldback
250
10000
38105 G12
200
150
100
50
V_RNG = INTV_CC
0
0
0.2
0.4
0.6
0.8
V_FB (V)
38105 G15
Reference Voltage vs
Temperature
0.803
0.802
0.801
0.800
0.799
0.798
0.797
–50 –25
0 25 50 75
TEMPERATURE (°C)
100 125
38105 G18
38105fc
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