ADP3208 ON Semiconductor, ADP3208 Datasheet - Page 13

• Manufacturer Part Number: ADP3208
• Description: 7-bit, Programmable, Dual-phase, Mobile, Cpu, Synchronous Buck Controller
• Manufacturer: ON Semiconductor

Figure 13. Switching Frequency vs. Output Voltage in RPM Mode
10000
1200
1000
1000
350
300
250
200
150
100
800
600
400
200
100
Figure 15. Per Phase Switching Frequency vs. RT Resistance
50
10
0
0
10
0
0
Figure 14. PMON Voltage vs. Output Power
20
VID = 1.2V
0.5
100
OUTPUT VOLTAGE (V)
RT RESISTANCE (kΩ)
OUTPUT POWER (W)
VID = 0.675V
40
VID = 1.5V
1000
1.0
60
RT = 237kΩ
RPM = 80.5kΩ
Rev. 1 | Page 13 of 38 | www.onsemi.com
10000
1.5
80
3
2
1.54
1.52
1.50
1.48
1.46
1.44
1.42
1.40
1.38
1.36
180
160
140
120
100
80
60
40
20
CH1 2.00V
CH3
Figure 17. VCC Current vs. VCC Voltage with Enable Low
0
0
0
2.00V
CLKEN
MEASURED LOAD LINE
CH2 1.00V
CH4 1.00V
10
Figure 18. Start-Up Waveforms
Figure 16. Load Line Accuracy
2
LOAD CURRENT (A)
VCC VOLTAGE (V)
OUTPUT VOLTAGE
20
SS
M2.00ms
T
13.60%
SPECIFIED LOAD LINE
PWRGD
30
4
A CH4
+2%
–2%
40
V
EN = LOW
ADP3208
IN
740mV
= 12V
50
6