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參數(shù)資料
| 型號(hào)： | ADP3159JRU |
| 廠商： | ANALOG DEVICES INC |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | 4-Bit Programmable Synchronous Buck Controllers |
| 中文描述： | SWITCHING CONTROLLER, PDSO20 |
| 封裝： | TSSOP-20 |
| 文件頁數(shù)： | 9/16頁 |
| 文件大?。?/td> | 231K |
| 代理商： | ADP3159JRU |
REV. A
–2–
ADP3159/ADP3179–SPECIFICATIONS1 (VCC = 12 V, T
A = 0 C to 70 C, unless otherwise noted.)
Parameter
Symbol
Conditions
Min
Typ
Max
Unit
FEEDBACK INPUT
Output Accuracy
VFB
1.3 V Output
Figure 1
1.289
1.3
1.311 V
1.65 V Output
Figure 1
1.637
1.65
1.663 V
2.05 V Output
Figure 1
2.034
2.05
2.066 V
Line Regulation
VOUT
VCC = 10 V to 14 V
0.06
%
Crowbar Trip Point
VCROWBAR
% of Nominal DAC Voltage
115
120
125
%
Crowbar Reset Point
% of Nominal DAC Voltage
40
50
60
%
Crowbar Response Time
tCROWBAR
Overvoltage to DRVL Going High
400
ns
VID INPUTS
Input Low Voltage
VIL(VID)
0.6
V
Input High Voltage
VIH(VID)
2.0
V
Input Current
IVID
VID(X) = 0 V
185
250
A
Pull-Up Resistance
RVID
20
30
k
Internal Pull-Up Voltage
5.0
5.4
5.7
V
OSCILLATOR
Off Time
TA = 25
°C, CT = 200 pF
3.5
4.0
4.5
s
CT Charge Current
ICT
TA = 25
°C, VOUT in Regulation
130
150
170
A
TA = 25
°C, VOUT = 0 V
25
35
45
A
ERROR AMPLIFIER
Output Resistance
RO(ERR)
1m
Transconductance
gm(ERR)
2.05
2.2
2.35
mmho
Output Current
IO(ERR)
FB– Forced to VOUT – 3%
625
A
Maximum Output Voltage
VCOMP(MAX) FB– Forced to VOUT – 3%
3.0
V
Output Disable Threshold
VCOMP(OFF)
600
750
900
mV
–3 dB Bandwidth
BWERR
COMP = Open
500
kHz
CURRENT SENSE
Threshold Voltage
VCS(TH)
FB– Forced to VOUT – 3%
69
78
87
mV
FB–
≤ 0.45 V
35
45
54
mV
0.8 V
≤ COMP ≤ 1 V
1
5
mV
Input Bias Current
ICS+, ICS–
CS+ = CS– = VOUT
0.5
5
A
Response Time
tCS
CS+ – (CS–)
> 87 mV to DRVH
50
ns
Going Low
OUTPUT DRIVERS
Output Resistance
RO(DRV(X))
IL = 50 mA
6
Output Transition Time
tR, tF
CL = 3000 pF
80
ns
LINEAR REGULATORS
Feedback Current
ILRFB(X)
0.3
1
A
LR1 Feedback Voltage
VLRFB(1)
ADP3159 Figure 2, VCC = 4.5 V to 12.6 V
2.44
2.5
2.56
V
ADP3179 Figure 2, VCC = 2-4.5 V to 12.6 V
0.97
1.0
1.03
V
LR2 Feedback Voltage
VLRFB(2)
ADP3159 Figure 2, VCC = 4.5 V to 12.6 V
1.75
1.8
1.85
V
ADP3179 Figure 2, VCC = 2-4.5 V to 12.6 V
0.97
1.0
1.03
V
Driver Output Voltage
VLRDRV(X)
VCC = 4.5 V, VLRFB(X) = 0 V
4.2
V
POWER GOOD COMPARATOR
Undervoltage Threshold
VPWRGD(UV)
% of Nominal DAC Voltage
75
80
85
%
Undervoltage Hysteresis
% of Nominal DAC Voltage
5
%
Overvoltage Threshold
VPWRGD(OV)
% of Nominal DAC Voltage
115
120
125
%
Overvoltage Reset Point
% of Nominal DAC Voltage
40
50
60
%
Output Voltage Low
VOL(PWRGD)
IPWRGD(SINK) = 1 mA
250
500
mV
Response Time
250
ns
SUPPLY
DC Supply Current
2
ICC
79
mA
UVLO Threshold Voltage
VUVLO
6.75
7
7.25
V
UVLO Hysteresis
0.8
1
1.2
V
NOTES
1All limits at temperature extremes are guaranteed via correlation using standard Statistical Quality Control (SQC).
2Dynamic supply current is higher due to the gate charge being delivered to the external MOSFETs.
Specifications subject to change without notice.
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