ADP3168 Analog Devices, ADP3168 Datasheet - Page 3

• Manufacturer Part Number: ADP3168
• Description: 4-Phase Synchronous Buck Controller
• Manufacturer: Analog Devices

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4
SPECIFICATIONS
All limits at temperature extremes are guaranteed via correlation using standard statistical quality control (SQC). VCC = 12 V,
FBRTN = GND, T
Table 1.
Parameter
ERROR AMPLIFIER
VID INPUTS
OSCILLATOR
CURRENT SENSE AMPLIFIER
CURRENT-BALANCE CIRCUIT
1
Guaranteed by design, not tested in production.
Output Voltage Range
Accuracy
Line Regulation
Input Bias Current
FBRTN Current
Output Current
Gain Bandwidth Product
Slew Rate
Input Low Voltage
Input High Voltage
Input Current, Input Voltage Low
Input Current, Input Voltage High
Pull-Up Resistance
Internal Pull-Up Voltage
VID Transition Delay Time
No CPU Detection Turn-Off
Frequency Range
Frequency Variation
Output Voltage
RAMPADJ Output Voltage
RAMPADJ Input Current Range
Offset Voltage
Input Bias Current
Gain Bandwidth Product
Slew Rate
Input Common-Mode Range
Positioning Accuracy
Output Voltage Range
Output Current
Common-Mode Range
Input Resistance
Input Current
Input Current Matching
Delay Time
A
1
= 0°C to 85°C, unless otherwise noted.
1
Symbol
V
V
∆V
I
I
I
GBW
V
V
I
I
R
f
f
V
V
I
V
I
GBW
∆V
I
V
R
I
∆I
FB
FBRTN
O(ERR)
IL(VID)
IH(VID)
RAMPADJ
BIAS(CSA)
CSCOMP
SW(X)
OSC
PHASE
VID
SW(X)
COMP
FB
IL(VID)
IH(VID)
RT
RAMPADJ
OS(CSA)
SW(X)CM
SW(X)
FB
FB
(ERR)
(CSA)
Conditions
Relative to nominal DAC output,
Referenced to FBRTN,
CSSUM = CSCOMP; see Figure 10
VCC = 10 V to 14 V
FB forced to V
COMP = FB
C
VID(X) = 0 V
VID(X) = 1.25 V
VID code change to FB change
VID code change to 11111 to
PWM going low
T
T
T
R
RAMPADJ − FB
CSSUM − CSREF; see Figure 5
C
CSSUM and CSREF
See Figure 6
I
SW(X) = 0 V
SW(X) = 0 V
SW(X) = 0 V
CSCOMP
A
A
A
T
COMP
CSCOMP
Rev. B | Page 3 of 24
= 100 kΩ to GND
= 25°C, R
= 25°C, R
= 25°C, R
= 10 pF
= ±100 µA
= 10 pF
T
T
T
= 250 kΩ, 4-phase
= 115 kΩ, 4-phase
= 75 kΩ, 4-phase
OUT
− 3%
−50
Min
0.5
−10
14
0.8
35
0.825
400
400
0.25
155
1.9
0
−1.5
−50
0
−77
0.05
−600
20
4
−5
Typ
0.05
15.5
90
500
20
25
−20
15
60
1.00
200
400
600
2.0
10
10
−80
500
30
7
Max
3.5
+10
17
120
0.4
−30
25
115
4
245
2.1
+50
100
+1.5
+50
3
−83
3.3
+200
40
10
+5
ADP3168
Unit
V
mV
%
µA
µA
µA
MHz
V/µs
V
V
µA
µA
kΩ
V
ns
ns
MHz
kHz
kHz
kHz
V
mV
µA
mV
nA
MHz
V/µs
V
mV
V
µA
mV
kΩ
µA
%