ADP3207 ANALOG DEVICES, ADP3207 Datasheet - Page 3

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

SPECIFICATIONS
VCC = 5 V, FBRTN = GND, EN = VCC, V
T
Table 1.
Parameter
VOLTAGE ERROR AMPLIFIER
VID DAC INPUTS
OSCILLATOR
RPM
CURRENT-SENSE AMPLIFIER
A
Output Voltage Range
VID DAC DC Accuracy
Load Line Positioning DC Accuracy
Differential Nonlinearity
Line Regulation
Input Bias Current
Output Current
Gain Bandwidth Product
Slew Rate
LLSET Input Voltage Range
LLSET Input Bias Current
FBRTN Current
Input Low Voltage
Input High Voltage
Input Current
VID Transition Delay Time
Frequency Range
Frequency Setting
RAMPADJ Voltage
RAMPADJ Input Current Range
RT Voltage
VRPM Reference Voltage
RRPM Output Current
RPM Comparator Offset
Offset Voltage
Input Bias Current
Gain Bandwidth Product
Slew Rate
Input Common-Mode Range
Output Voltage Range
Output Current
= 0°C to 100°C, unless otherwise noted.
2
2
2
2
2
2
2
2
Symbol
V
V
V
V
∆V
I
V
I
V
V
I
f
f
V
I
V
I
V
V
I
I
GBW
I
V
I
GBW
FB
COMP
LLSET
FBRTN
IN(VID)
RAMPADJ
RRPM
BIAS(CSSUM)
CSCOMP
OSC
PHASE
COMP
FB
FB(BOOT)
FB
LLSET
IL
IH
RAMPADJ
RT
VRPM
OS(RPM)
OS(CSA)
FB
− V
− V
VID
1
(ERR)
(CSA)
VID
VID
= 0.50 V to 1.5000 V, PSI = 1.05 V, DPRSLP = GND, DPRSTP = 1.05 V, LLSET = CSREF,
Conditions
Measured at FB, relative to V
Measured at end of start-up
Measured at FB, relative to V
VCC = 4.75 V to 5.25 V
FB forced to V
COMP = FB
C
Relative to CSREF
VID
VID
VID change to FB change
PSI = DPRSTP = 1.05 V, DPRSLP = GND
T
T
T
I
In normal mode
In shutdown, or in UVLO, RAMPADJ = 19 V
R
I
I
V
V
CSSUM – CSREF
C
CSSUM and CSREF
Sinking Current
RAMPADJ
VRPM
VRPM
A
A
A
T
COMP
VID
OS(RPM)
CSCOMP
= 215 kΩ to GND, V
= +25°C, V
= +25°C, PWM3 = VCC, V
= +25°C, PWM2 = VCC, V
X
X
= 1.2 V, R
= 0
= 120 µA
= 10 pF
= 60 µA
= V
= 10 pF
Rev. 0 | Page 3 of 32
COMP
VID
T
OUT
= 215 kΩ
− V
= 1.2000 V, R
– 3%
RRPM
, PSI = GND
VID
= 1.4000 V
VID
VID
VID
VID
T
, LLSET – CSREF = −80 mV
= 215 kΩ
= 1.2000 V, R
= 1.2000 V, R
, see Figure 2
T
T
= 215 kΩ
= 215 kΩ
−1.0
Min
0.85
−8
1.192
−78
−1
−1
−200
−100
0.7
400
0.3
155
0.9
1
−1
1.08
.95
1.0
−50
0
0.05
w w w . D a t a S h e e t 4 U
Typ
1.200
−80
0.05
3
20
25
70
0.5
0.5
−1
200
300
600
1.1
60
1.2
1
1.03
−5.5
1
10
10
470
ADP3207
Max
4.0
+8
−82
+1
+1
+200
+100
400
0.3
3
245
1.2
120
1.32
1.05
1.10
+1.0
+50
3.5
2.0
1.208
+1
Units
V
mV
V
mV
LSB
%
µA
mA
MHz
V/µs
mV
nA
µA
V
V
µA
ns
MHz
kHz
kHz
kHz
V
µA
µA
V
V
V
µA
mV
mV
nA
MHz
V/µs
V
V
µA