ADP3208C ON Semiconductor, ADP3208C Datasheet - Page 16

• Manufacturer Part Number: ADP3208C
• Description: 7-bit,programmable,dual- Phase,mobile,cpu,synchronous Buck Controller
• Manufacturer: ON Semiconductor

ADP3208C
Figure 12. Switching Frequency vs. VID Output Voltage in PWM Mode
Figure 13. Switching Frequency vs. Output Voltage in RPM Mode
1200
1000
350
300
250
200
150
100
800
600
400
200
50
400
350
300
250
200
150
100
0
0
50
0
0
0
0.25
Figure 14. IMON Voltage vs. Output Current
VARFREQ = 0V
0.5
20
VID OUTPUT VOLTAGE (V)
0.5
OUTPUT VOLTAGE (V)
OUTPUT POWER (W)
VARFREQ = 5V
0.75
40
1
1.0
2 Phase Mode
RT = 187kΩ
60
RT = 237kΩ
RPM = 80.5kΩ
1.25
Rev. 1 | Page 16 of 41 | www.onsemi.com
1.5
1.5
80
1.05
0.95
0.85
0.9
1
1000
100
0.8
0.6
0.4
0.2
0
Figure 15. Per Phase Switching Frequency vs. RT Resistance
0
Figure 17. VCC Current vs. VCC Voltage with Enable Low
0
10
2 Phase Configuration
10
1
Figure 16. Load Line Accuracy
-2%
1 Phase
PSI = Low
Rt RESISTANCE (kΩ)
VID = 0.8125
2
VCC VOLTAGE (V)
VID = 1.1V
20
VID = 0.6125
Load (A)
+2%
100
3
VID = 1.4125V
30
4
VID = 1.2125V
VDC = 12V
EN = LOW
2 Phase
PSI = High
40
5
1000
6
50