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ADP3208D Datasheet(PDF) 2 Page - ON Semiconductor

Part No. ADP3208D
Description  7-Bit, Programmable, Dual-Phase, Mobile, CPU, Synchronous Buck Controller
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Maker  ONSEMI [ON Semiconductor]
Homepage  http://www.onsemi.com
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ADP3208D Datasheet(HTML) 2 Page - ON Semiconductor

 
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ADP3208D
http://onsemi.com
2
Figure 1. Functional Block Diagram
+
VID
DAC
FBRTN
CLKEN
Delay
CLKEN
Startup
Delay
CLKEN
Open
Drain
CLKEN
Open
Drain
PWRGD
Startup
Delay
CLKEN
PWRGD
PWRGD
Open
Drain
+
+
CSREF
DAC − 300mV
Soft
Transient
Delay
Delay
Disable
DAC
+
+
CSREF
CSSUM
CSCOMP
ILIMN
Thermal
Throttle
Control
Thermal
Throttle
Control
TTSNS
VRTT
OVP
CSREF
1.7V
+
+
Σ _
+
LLINE
REF
REF
Σ
+
+
VEA
FB
COMP
UVLO
Shutdown
and Bias
UVLO
Shutdown
and Bias
VCC EN
GND
RPM RT RAMP
Current
Balancing
Circuit
Current
Balancing
Circuit
IMON
DPRSLP
DPRSLP
Logic
PSI
PSI
Current
Monitor
BST1
DRVH1
Current
Limit
Circuit
OCP
Shutdown
Delay
SW1
PGND1
DRVL1
PVCC1
BST2
DRVH2
SW2
DRVL2
PGND2
Driver
Logic
Precision
Reference
Precision
Reference
Soft−Start
Soft Transient
VARFREQ
PVCC2
DAC − 200mV
ILIMP
DPRSTP
DPRSTP
DPRSTP
DPRSTP
Oscillator
SP
ABSOLUTE MAXIMUM RATINGS
Parameter
Rating
Unit
VCC, PVCC1, PVCC2
−0.3 to +6.0
V
FBRTN, PGND1, PGND2
−0.3 to +0.3
V
BST1, BST2
DC
t < 200 ns
−0.3 to +28
−0.3 to +33
V
BST1 to SW1, BST2 to SW2
−0.3 to +6.0
V
SW1, SW2
DC
t < 200 ns
−5.0 to +22
−10 to +28
V
DRVH1 to SW1, DRVH2 to SW2
−0.3 to +6.0
V
DRVL1 to PGND1, DRVL2 to PGND2
DC
t < 200 ns
−0.3 to +6.0
−5.0 to +6.0
V
RAMP (In Shutdown) DC
−0.3 to +22
V
All Other Inputs and Outputs
−0.3 to +6.0
V
Storage Temperature
−65 to +150
°C
Operating Ambient Temperature Range
−10 to 100
°C
Operating Junction Temperature
125
°C
Thermal Impedance (qJA) 2−Layer Board
40
°C/W
Lead Temperature
Soldering (10 sec)
Infrared (15 sec)
300
260
°C
Stresses exceeding Maximum Ratings may damage the device. Maximum Ratings are stress ratings only. Functional operation above the
Recommended Operating Conditions is not implied. Extended exposure to stresses above the Recommended Operating Conditions may affect
device reliability.
NOTE: This device is ESD sensitive. Use standard ESD precautions when handling.


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