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ADP3207 Datasheet(PDF) 6 Page - ON Semiconductor

Part No. ADP3207
Description  CPU Synchronous Buck Controller
Download  29 Pages
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Maker  ONSEMI [ON Semiconductor]
Homepage  http://www.onsemi.com
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ADP3207 Datasheet(HTML) 6 Page - ON Semiconductor

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ADP3207
Rev. 1 | Page 6 of 29 | www.onsemi.com
TEST CIRCUITS
1kΩ
10nF
113kΩ
20kΩ
TTSENSE
VRTT
DCM
OD
PWM1
PWM2
PWM3
SW1
SW2
SW3
EN
PWRGD
PGDELAY
CLKEN
FB
FBRTN
COMP
SS
STSET
DPRSLP
40
100nF
1μF
+
5V
100nF
3.3V
1
ADP3207
7-BIT CODE
Figure 2. Closed-Loop Output Voltage Accuracy
ADP3207
GND
CSCOMP
CSREF
31
19
17
20
5V
39kΩ
100nF
1kΩ
1.0V
VOS = CSCOMP – 1V
40
CSSUM
18
VCC
Figure 3. Current-Sense Amplifier VOS
31
7
20
ADP3207
VCC
COMP
FB
LLSET
CSREF
GND
5V
10kΩ
1.0V
V
VFB = FB∆V = 80mV – FB∆V = 0mV
VID DAC
VDAC
VDAC
6
16
17
Figure 4. Positioning Accuracy


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