NCP5222 ON Semiconductor, NCP5222 Datasheet - Page 19

• Manufacturer Part Number: NCP5222
• Description: High Performance Dual-channel / Two-phase Synchronous Buck Controller For Notebook Power System
• Manufacturer: ON Semiconductor

350
300
250
200
150
100
4.5
4.4
4.3
4.2
4.1
3.8
3.6
3.4
3.2
50
4
4
3
0
−40
−40
0
Figure 19. V
Figure 23. Switching Frequency vs. Output
Figure 21. V
−20
−20
V
IN
V
V
IN
= 5 V
T
T
4
IN
A
A
= 12 V
, AMBIENT TEMPERATURE (°C)
, AMBIENT TEMPERATURE (°C)
0
0
= 20 V
I
O
Ambient Temperature
Ambient Temperature
Current in Skip Mode
, OUTPUT CURRENT (A)
CC
IN
20
20
Start Threshold VCCUV+ vs.
Start Threshold VINUV+ vs.
8
40
40
12
TYPICAL OPERATING CHARACTERISTICS
60
60
80
80
16
100
100
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120
120
20
19
−200
−240
−280
−320
−360
−400
−300
−380
−460
−540
−620
−700
302
301
300
299
298
297
296
−40
−40
0
Figure 20. V
Figure 22. V
Figure 24. Switching Frequency vs. Output
−20
−20
T
T
4
A
A
, AMBIENT TEMPERATURE (°C)
, AMBIENT TEMPERATURE (°C)
0
0
V
I
Current in FPWM Mode
O
Ambient Temperature
Ambient Temperature
CC
IN
, OUTPUT CURRENT (A)
IN
= 5 V
UVLO Hysteresis VCCHYS vs.
UVLO Hysteresis VINHYS vs.
20
20
8
V
IN
40
= 12 V
40
12
60
60
V
IN
= 20 V
80
80
16
100
100
120
20
120