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ADP3161JR 数据表(PDF) 2 Page - Analog Devices

部件名 ADP3161JR
功能描述  4-Bit Programmable 2-Phase Synchronous Buck Controller
PDF  12 Pages
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制造商  AD [Analog Devices]
网页  http://www.analog.com
标志 AD - Analog Devices

ADP3161JR 数据表(HTML) 2 Page - Analog Devices

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ADP3161–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
1.3 V Output
TPC 1
1.290 1.3
1.310
V
1.6 V Output
TPC 1
1.587 1.6
1.613
V
2.05 V Output
TPC 1
2.034 2.05
2.066
V
Line Regulation
∆VFB
VCC = 10 V to 14 V
0.05
%
Input Bias Current
IFB
550
nA
Crowbar Trip Point
VCROWBAR
Percent of Nominal Output
114
124
134
%
Crowbar Reset Point
Percent of Nominal Output
50
60
70
%
Crowbar Response Time
tCROWBAR
Overvoltage to PWM Going Low
300
ns
FB Low Comparator Threshold
VFB(LOW)
375
425
500
mV
REFERENCE
Output Voltage
VREF
2.952 3.0
3.048
V
Output Current
IREF
300
µA
VID INPUTS
Input Low Voltage
VIL(VID)
0.6
V
Input High Voltage
VIH(VID)
2.2
V
Input Current
IVID
VID(X) = 0 V
180
250
µA
Pull-Up Resistance
RVID
20
28
k
Ω
Internal Pull-Up Voltage
4.5
5.0
5.5
V
OSCILLATOR
Maximum Frequency2
fCT(MAX)
2000
kHz
Frequency Variation
∆fCT
TA = 25
°C, CT = 91 pF
430
500
570
kHz
CT Charge Current
ICT
TA = 25
°C, VFB in Regulation
130
150
170
µA
TA = 25
°C, V
FB = 0 V
263646
µA
ERROR AMPLIFIER
Output Resistance
RO(ERR)
200
k
Ω
Transconductance
gm(ERR)
2.0
2.2
2.45
mmho
Output Current
IO(ERR)
VFB = 0 V
1
mA
Maximum Output Voltage
VCOMP(MAX)
FB Forced to VOUT – 3%
3.0
V
Output Disable Threshold
VCOMP(OFF)
560
720
800
mV
–3 dB Bandwidth
BWERR
COMP = Open
500
kHz
CURRENT SENSE
Threshold Voltage
VCS(TH)
CS+ = VCC,
69
79
89
mV
FB Forced to VOUT – 3%
0.8 V
≤ COMP ≤ 1 V
0
15
mV
VCS(FOLD)
FB
≤ 375 mV
37
47
58
mV
∆VCOMP/∆VCS
ni
1 V
≤ VCOMP ≤ 3 V
25
V/V
Input Bias Current
ICS+, ICS–
CS+ = CS– = VCC
0.5
5
µA
Response Time
tCS
CS+ – (CS–)
≥ 89 mV
50
ns
to PWM Going Low
POWER GOOD COMPARATOR
Undervoltage Threshold
VPWRGD(UV)
Percent of Nominal Output
76
82
88
%
Overvoltage Threshold
VPWRGD(OV)
Percent of Nominal Output
114
124
134
%
Output Voltage Low
VOL(PWRGD)
IPWRGD(SINK) = 100
µA
30
200
mV
Response Time
FB Going High
2
µs
FB Going Low
200
ns
PWM OUTPUTS
Output Voltage Low
VOL(PWM)
IPWM(SINK) = 400
µA
100
500
mV
Output Voltage High
VOH(PWM)
IPWM(SOURCE) = 400
µA
4.5
5.0
5.5
V
Output Current
IPWM
0.4
1
mA
Duty Cycle Limit
2
DC
Per Phase, Relative to fCT
50
%



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