ADP3208 ON Semiconductor, ADP3208 Datasheet - Page 11

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

TEST CIRCUITS
1.05V
10nF
1kΩ
39kΩ
1kΩ
1V
PWRGD
Figure 4. Closed-Loop Output Voltage Accuracy
TTSNS
5V
Figure 5. Current Sense Amplifier, V
1
100nF
48
EN
PGDELAY
CLKEN
FBRTN
FB
COMP
SS
ST
VARFREQ
VRTT
250kΩ
37
17
19
18
24
VCC
CSCOMP
CSSUM
CSREF
GND
ADP3208
ADP3208
100nF
7-BIT CODE
V
OS
20kΩ
=
CSCOMP – 1V
PGND1
PGND2
PVCC1
PVCC2
DRVH2
DRVL1
DRVL2
40
OS
BST1
BST2
SW1
SW2
1μF
Rev. 1 | Page 11 of 38 | www.onsemi.com
100nF
5V
10kΩ
ΔV
1V
5V
Figure 6. Positioning Accuracy
ΔV
FB
37
16
18
24
7
6
= FB
VCC
COMP
FB
LLINE
CSREF
GND
ΔV = 80mV
ADP3208
–
+
– FB
ΔV = 0mV
DAC
VID
ADP3208