ADP3207 ANALOG DEVICES, ADP3207 Datasheet - Page 4

• Manufacturer Part Number: ADP3207
• Description: 7-Bit Programmable Multiphase Mobile CPU Synchronous Buck Controller
• Manufacturer: ANALOG DEVICES

ADP3207
Parameter
CURRENT BALANCE AMPLIFIER
CURRENT-LIMIT COMPARATOR
SOFT START TIMER
SOFT TRANSIENT CONTROL
SYSTEM INTERFACE CONTROL
INPUTS
THERMAL THROTTLING CONTROL
Common Mode Range
Input Resistance
Input Current
Input Current Matching
Zero Current Switching
Masked Off-Time
SS Current
SS Termination Threshold Voltage
SS Clamp Voltage
Current-Limit Latch-Off Voltage
STSET Current
Minimum STSET Capacitance
Long Transient Threshold Accuracy
PSI and DPRSTP
DPRSLP and EN
TTSENSE Voltage Range
TTSENSE VRTT Threshold Voltage
TTSENSE VRTT Hysteresis
TTSENSE Bias Current
VRTT Output Low Voltage
VRTT Output High Voltage
ILIMIT Voltage
ILIMIT Current
Maximum ILIMIT Current
Current-Limit Threshold Voltage
Input Low Voltage
Input High Voltage
Input Low Voltage
Input High Voltage
Threshold Voltage
2
2
2
2
Symbol
V
R
I
∆I
V
t
V
I
V
I
V
V
I
C
V
V
V
V
V
V
V
SW(X)
ILIMIT
SS
SOURCE(STSET)
OFFMSKD
SW(X)CM
SW(X)
DCM(SW1)
ILIMIT
CL
TH(SS)
ILO(SS)
STSET
OS(SSMASK)
IL
IH
IL
IH
OL(VRTT)
OH(VRTT)
SW(X)
Conditions
SW
SW
SW
In DCM mode, DPRSLP = 3.3 V
Measured from PWM turn-off
R
R
V
V
VCC), PSI = GND
V
VCC), PSI = GND
V
(neither PWM2 = VCC nor PWM3 = VCC), PSI = GND
During start-up, V
In normal mode, V
In current limit, V
During start-up, SS is rising
In normal mode
In current limit, SS is falling
Fast exit from deeper sleep,
DPRSLP = 0 V, STSET = V
Slow exit from deeper sleep,
DPRSLP = 3.3 V, STSET = V
Slow entry to deeper sleep,
DPRSLP = 3.3 V, STSET = V
V
VCC = 5 V, TTSENSE is falling
TTSENSE = 2.6 V
I
I
VRTT(SINK)
VRTT(SOURCE)
ILIMIT
ILIMIT
CSREF
CSREF
CSREF
CSREF
OS(SSMASK)
X
X
X
= 0 V
= 0 V
= 0 V
= 113 kΩ
= 113 kΩ
– V
– V
– V
– V
= 400 µA
CSCOMP
CSCOMP
CSCOMP
CSCOMP
= V
Rev. 0 | Page 4 of 32
= 400 µA
STSET
, R
, R
, R
, R
ILIMIT
ILIMIT
ILIMIT
ILIMIT
– V
SS
SS
SS
= 2.0 V
< 1.7 V
DAC
= 2.0 V
= 113 kΩ, PSI = 1.05 V
= 113 kΩ, 1-phase, (PWM2 =
= 113 kΩ, 2-phase, (PWM3 =
= 113 kΩ, 3-phase,
DAC
DAC
DAC
– 0.3 V
– 0.3 V
+ 0.3 V
Min
−600
30
3
−5
1.65
−60
180
180
86
55
−10
1.5
1.6
1.6
100
0.7
2.3
0
2.45
50
−2
4
Typ
40
4.5
−6
350
1.7
−15
192
192
96
64
−8
−48
2
1.7
2.9
1.7
−8
−2.5
+2.5
170
0.5
0.5
1.3
1.9
2.5
95
10
5
w w w . D a t a S h e e t 4 U
Max
+200
60
6
+5
1.75
210
210
107
72
−6
2.5
1.8
1.8
0.3
1.0
5
2.55
2
500
Units
mV
kΩ
µA
%
mV
ns
V
µA
µA
mV
mV
mV
mV
µA
µA
µA
V
V
V
µA
µA
µA
pF
mV
V
V
V
V
V
V
mV
µA
mV
V