ADP3212 ON Semiconductor, ADP3212 Datasheet - Page 2

• Manufacturer Part Number: ADP3212
• Description: 7-bit Programmable, 3-phase,mobile Cpu Synchronous Buck Controller
• Manufacturer: ON Semiconductor

ADP3212/NCP3218
PWRGD
TRDET
TRDET
SWFB1
SWFB2
SWFB3
CLKEN
CLKEN
FBRTN
COMP
LLINE
PH0
PH1
FB
DAC + 200mV
REF
DAC - 300mV
CSREF
+
+
Generator
Generator
PWRGD
Reference
Reference
CLKEN
CLKEN
Precision
Precision
GND
TRDET
TRDET
Open
Drain
Open
Open
Drain
Drain
Σ Σ
Σ Σ
+
DAC
VID
_
1.55V
FUNCTIONAL BLOCK DIAGRAM
+
+
+
+
-
-
-
-
+
+
-
-
CSREF
VEA
VCC EN
Shutdown
Shutdown
and Bias
and Bias
PWRGD
Start Up
Start Up
Start Up
Number of
UVLO
UVLO
CLKEN
CLKEN
Delay
Delay
Delay
Phases
+
+
-
-
Rev. SpA | Page 2 of 43
OVP
Shutdown
DAC
RPM RT RAMP
Balancing
Balancing
Delay
OCP
Figure 1.
Current
Current
Circuit
Circuit
Transient
Disable
Oscillator
Delay
Delay
Soft
Current
Circuit
Limit
REF
Driver
Logic
VARFREQ
DPRSLP
DPRSLP
PSI and
PSI and
Soft Start
Current
Current
Monitor
Monitor
Logic
Logic
Thermal
Thermal
Throttle
Throttle
Control
Control
PGND
PVCC
+
+
-
-
CSREF
CSSUM
ILIM
PSI
PSI
IMON
CSCOMP
TTSENSE
BST1
DPRSLP
VRTT
PWM3
SW1
BST2
SW2
OD3
OD3
DRVH1
DRVH2
PVCC
DRVL1
DRVL2
PGND