ADP3168 Analog Devices, ADP3168 Datasheet - Page 4

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

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ADP3168
Parameter
CURRENT-LIMIT COMPARATOR
ENABLE INPUT
POWER-GOOD COMPARATOR
PWM OUTPUTS
SUPPLY
ILIMIT Output Voltage
Output Current, Normal Mode
Current-Limit Threshold Voltage
Current-Limit Setting Ratio
DELAY Normal Mode Voltage
DELAY Overcurrent Threshold
Latch-Off Delay Time
SOFT START
Output Current, Soft-Start Mode
Soft-Start Delay Time
Input Low Voltage
Input High Voltage
Input Current, Input Voltage Low
Input Current, Input Voltage High
Undervoltage Threshold
Overvoltage Threshold
Output Low Voltage
Power-Good Delay Time
Crowbar Trip Point
Crowbar Reset Point
Crowbar Delay Time
Output Voltage Low
Output Voltage High
DC Supply Current
UVLO Threshold Voltage
UVLO Hysteresis
4
Normal Mode
Shutdown Mode
VID Code Changing
VID Code Static
VID Code Changing
VID Code Static
Symbol
V
V
I
V
V
V
t
I
t
V
V
I
I
V
V
V
V
t
V
V
V
ILIMIT(NM)
DELAY(SS)
IL(EN)
IH(EN)
DELAY
DELAY(SS)
CROWBAR
ILIMIT(NM)
ILIMIT(SD)
CL
DELAY(NM)
DELAY(OC)
IL(EN)
IH(EN)
PWRGD(UV)
PWRGD(OV)
OL(PWRGD)
CROWBAR
OL(PWM)
OH(PWM)
UVLO
Conditions
EN > 1.7 V, R
EN > 0.8 V, I
EN > 1.7 V, R
V
V
R
During startup, DELAY < 2.8 V
R
VID code = 011111
EN = 0 V
EN = 1.25 V
Relative to nominal DAC output
Relative to nominal DAC output
I
Relative to nominal DAC output
Relative to FBRTN
Overvoltage to PWM going low
I
I
VCC rising
PWRGD(SINK)
PWM(SINK)
PWM(SOURCE)
DELAY
DELAY
CSREF
CL
Rev. B | Page 4 of 24
/I
ILIMIT
− V
= 250 kΩ, C
= 250 kΩ, C
= 400 µA
CSCOMP
= 4 mA
= 400 µA
ILIMIT
ILIMIT
ILIMIT
, R
= −100 µA
= 250 kΩ
= 250 kΩ
ILIMIT
DELAY
DELAY
= 250 kΩ
= 4.7 nF
= 4.7 nF
Min
2.9
105
2.9
1.7
15
0.8
−1
−200
90
100
90
450
100
4.0
6.5
0.7
Typ
3
12
125
10.4
3
1.8
600
20
350
10
−250
150
225
250
200
150
550
250
400
160
5.0
5
6.9
0.9
Max
3.1
400
145
3.1
1.9
25
0.4
+1
25
−325
200
400
200
650
500
8
7.3
1.1
Unit
V
mV
µA
mV
mV/µA
V
V
µs
µA
µs
V
V
µA
µA
mV
mV
mV
µs
ns
mV
mV
µs
ns
mV
V
mA
V
V