ADP3020 Просмотр технического описания (PDF) - Analog Devices
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ADP3020 Datasheet PDF : 22 Pages
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ADP3020
Parameter
Symbol Conditions
Min
Adjustable Output Voltage
PWM Mode
Power-Saving Mode
Output Voltage Adjustment Range3
Current Limit Threshold (PWM Mode)
CLSET5 = CLSET3 = Floating
CLSET5 = CLSET3 = 0 V
Current Limit Threshold
(Power-Saving Mode)
CLSET5 = CLSET3 = Floating
CLSET5 = CLSET3 = 0 V
Power-Saving Mode Trip Threshold
Soft-Start Current
Soft-Start Turn-On Threshold
Feedback Input Leakage Current
Maximum Duty Cycle3
Transition Time (DRVH/DRVL)
Rise
Fall
Logic Input Low Voltage
Logic Input High Voltage
EAN5,
EAN3
FB5, FB3
FB5, FB3
5.5 V ≤ VIN ≤ 25 V,
ADJ/FX5 = ADJ/FX3 = 5 V
5.5 V ≤ VIN ≤ 25 V,
ADJ/FX5 = ADJ/FX3 = 5 V
ADJ/FX5 = ADJ/FX3 = 5 V
5.5 V ≤ VIN ≤ 25 V, TA = 25°C
5.5 V ≤ VIN ≤ 25 V, TA = 25°C
1.173
1.179
1.25
54
115
SS5, SS3
IFB
DMAX
5.5 V ≤ VIN ≤ 25 V, TA = 25°C
5.5 V ≤ VIN ≤ 25 V, TA = 25°C
CLSET5 = CLSET3 = 0 V, TA = 25°C
SS3 = SS5 = 3 V
0.7
ADJ/FX5 = ADJ/FX3 = 5 V,
FB = 1.2 V
VIN = 5.5 V, SYNC = AGND
94
tR
CLOAD = 3000 pF, 10%–90%
tF
CLOAD = 3000 pF, 90%–10%
MODE, SD, ADJ/FX3, ADJ/FX5
MODE, SD, ADJ/FX3, ADJ/FX5
2.4
LINEAR REGULATOR CONTROLLER
Feedback Threshold
SD2 Pull-Up Current
SD2 Threshold
Current Sinking Capability
FB2 Input Leakage Current
FB2
SD2
DRV2
IFB
SD2 = 1.2 V
DRV2 = 2 V, FB2 = 1 V, SD2 = 5 V
FB2 = 1.2 V
1.176
0.7
20
POWER-FAIL COMPARATOR
PFI Input Threshold
PFI Input Hysteresis
PFI Input Current
PFO High Voltage
PFO Low Voltage
PFO from High to Low
10 kΩ Pull-Up to 5 V
10 kΩ Pull-Up to 5 V
1.176
4.8
FAULT PROTECTION
Output Overvoltage Trip Threshold
Output Undervoltage Lockout Threshold
With Respect to Nominal Output
115
With Respect to Nominal Output
75
NOTES
1All limits at temperature extremes are guaranteed via correlation using standard Statistical Quality Control (SQC) methods.
2The reference’s line-regulation error is insignificant. The reference cannot be used for external load.
3Guaranteed by design, not tested in production.
Specifications subject to change without notice.
Typ Max Unit
1.197 1.221 V
1.203 1.227 V
VIN–0.5 V
72 90
mV
144 173
mV
16
mV
35
mV
28
mV
4
µA
1.2 1.8
V
200
nA
99
%
40 70
ns
40 70
ns
0.6
V
V
1.20 1.224 V
4
µA
1.2 1.8
V
45
mA
50
nA
1.20 1.224 V
24
mV
200
nA
V
0.4
V
120 125
%
80 85
%
REV. 0
–3–
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