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ADP3164 Datasheet(PDF) 2 Page - Analog Devices

Part # ADP3164
Description  5-Bit Programmable 4-Phase Synchronous Buck Controller
PDF  16 Pages
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Manufacturer  AD [Analog Devices]
Direct Link  http://www.analog.com
Logo AD - Analog Devices

ADP3164 Datasheet(HTML) 2 Page - Analog Devices

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REV. 0
–2–
ADP3164–SPECIFICATIONS1 (VCC = 12 V, I
REF = 150
A, TA = 0 C to 70 C, unless otherwise noted.)
Parameter
Symbol
Conditions
Min
Typ
Max
Unit
FEEDBACK INPUT
Accuracy
VFB
1.1 V Output
1.091
1.1
1.109
V
1.6 V Output
1.587
1.6
1.613
V
1.85 V Output
1.835
1.85
1.865
V
Line Regulation
∆V
FB
VCC = 10 V to 14 V
0.01
%
Input Bias Current
IFB
550
nA
Crowbar Trip Point
VCROWBAR
% of Nominal Output
115
120
125
%
Crowbar Reset Point
% of Nominal Output
40
50
60
%
Crowbar Response Time
tCROWBAR
Overvoltage to PWM Going Low
400
ns
REFERENCE
Output Voltage
VREF
2.952
3.00
3.048
V
Output Current
IREF
300
µA
VID INPUTS
Input Low Voltage
VIL(VID)
0.8
V
Input High Voltage
VIH(VID)
2.0
V
Input Current
IVID
VID(X) = 0 V
70
90
µA
Pull-Up Resistance
RVID
33
43
k
Ω
Internal Pull-Up Voltage
2.7
3.0
3.3
V
OSCILLATOR
Maximum Frequency
2
fCT(MAX)
4000
kHz
Frequency Variation
fCT
TA = 25
°C, CT = 150 pF
475
575
675
kHz
TA = 25
°C, CT = 68 pF
850
1000
1250
kHz
TA = 25
°C, CT = 47 pF
1100
1300
1500
kHz
CT Charge Current
ICT
TA = 25
°C, VFB in Regulation
260
300
340
µA
TA = 25
°C, V
FB = 0 V
40
65
80
µA
ERROR AMPLIFIER
Output Resistance
RO(ERR)
1M
Ω
Transconductance
gm(ERR)
2.0
2.2
2.45
mmho
Output Current
IO(ERR)
FB = 0 V
575
µA
Maximum Output Voltage
VCOMP(MAX)
FB Forced to VOUT – 3%
3.0
V
Output Disable Threshold
VCOMP(OFF)
800
875
mV
–3 dB Bandwidth
BWERR
COMP = Open
500
kHz
CURRENT SENSE
Threshold Voltage
VCS(TH)
CS+ = VCC,
143
158
173
mV
FB Forced to VOUT – 3%
FB
≤ 750 mV
80
92
108
mV
0.8 V
≤ SHARE ≤ 1 V
0
5
mV
Input Bias Current
ICS+, ICS–
CS+ = CS– = VCC
1
5
µA
Response Time
tCS
CS+ – (CS–)
≥ 173 mV
50
ns
to PWM Going Low
CURRENT SHARING
Output Source Current
2
mA
Output Sink Current
300
400
µA
Maximum Output Voltage
VSHARE(MAX)
FB Forced to VOUT – 3%
3.0
V
POWER GOOD COMPARATOR
Undervoltage Threshold
VPWRGD(UV)
Percent of Nominal Output
75
80
85
%
Overvoltage Threshold
VPWRGD(OV)
Percent of Nominal Output
115
120
125
%
Output Voltage Low
VOL(PWRGD)
IPWRGD(SINK) = 1 mA
375
525
mV
Response Time
250
ns
PWM OUTPUTS
Output Voltage Low
VOL(PWM)
IPWM(SINK) = 400
µA
100
500
mV
Output Voltage High
VOH(PWM)
IPWM(SOURCE) = 400
µA
4.0
5.0
V
Duty Cycle Limit Per Phase
2
DC
25
%



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