XR79103EL-F Datasheet, PDF (6/20 Pages) Exar Corporation – 22V, 3A Synchronous Step-Down COT Power Module

XR79103
Typical Performance Characteristics
T_A = 25°C, V_IN = 12V, V_OUT = 1.2V, I_OUT = 3A, f = 600kHz, unless otherwise specified. Schematic shown in Figure 27.
1.240
1.230
1.220
1.210
1.200
1.190
1.180
1.170
1.160
0.0
0.5
1.0
1.5
2.0
2.5
3.0
IOUT (A)
Figure 3. Load Regulation
1.240
1.230
1.220
1.210
1.200
1.190
1.180
1.170
1.160
4 6 8 10 12 14 16 18 20 22
VIN (V)
Figure 4. Line Regulation
1,000
900
800
700
600
500
400
300
200
100
0
0
Calculated
Typical
5 10 15 20 25 30 35 40 45
RON (kΩ)
Figure 5. t_ON vs. R_ON
500
450
400
350
300
250
200
150
100
4
Calculated
Typical
6 8 10 12 14 16 18 20 22
VIN (V)
Figure 6. t_ON vs. V_IN, R_ON = 6.98kΩ
800
700
600
500
400
300
200
100
0
0.0
0.5
1.0
1.5
2.0
2.5
3.0
IOUT (A)
Figure 7. Switching Frequency vs. I_OUT
800
700
600
500
400
300
200
100
0
4
6 8 10 12 14 16 18 20 22
VIN (V)
Figure 8. Switching Frequency vs. V_IN
REV1B
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