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ADP3020 Datasheet(PDF) 3 Page - Analog Devices

Part # ADP3020
Description  High-Efficiency Notebook Computer Power Supply Controller
PDF  22 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Manufacturer  AD [Analog Devices]
Direct Link  http://www.analog.com
Logo AD - Analog Devices

ADP3020 Datasheet(HTML) 3 Page - Analog Devices

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–3–
REV. 0
ADP3020
Parameter
Symbol
Conditions
Min
Typ
Max
Unit
Adjustable Output Voltage
PWM Mode
EAN5,
5.5 V
≤ VIN ≤ 25 V,
1.173
1.197 1.221
V
EAN3
ADJ/FX5 = ADJ/FX3 = 5 V
Power-Saving Mode
FB5, FB3
5.5 V
≤ VIN ≤ 25 V,
1.179
1.203 1.227
V
ADJ/FX5 = ADJ/FX3 = 5 V
Output Voltage Adjustment Range
3
FB5, FB3
ADJ/FX5 = ADJ/FX3 = 5 V
1.25
VIN–0.5 V
Current Limit Threshold (PWM Mode)
CLSET5 = CLSET3 = Floating
5.5 V
≤ VIN ≤ 25 V, T
A = 25
°C54
72
90
mV
CLSET5 = CLSET3 = 0 V
5.5 V
≤ VIN ≤ 25 V, TA = 25°C
115
144
173
mV
Current Limit Threshold
(Power-Saving Mode)
CLSET5 = CLSET3 = Floating
5.5 V
≤ VIN ≤ 25 V, TA = 25°C16
mV
CLSET5 = CLSET3 = 0 V
5.5 V
≤ VIN ≤ 25 V, TA = 25°C35
mV
Power-Saving Mode Trip Threshold
CLSET5 = CLSET3 = 0 V, TA = 25
°C28
mV
Soft-Start Current
SS3 = SS5 = 3 V
4
µA
Soft-Start Turn-On Threshold
SS5, SS3
0.7
1.2
1.8
V
Feedback Input Leakage Current
IFB
ADJ/FX5 = ADJ/FX3 = 5 V,
200
nA
FB = 1.2 V
Maximum Duty Cycle
3
DMAX
VIN = 5.5 V, SYNC = AGND
94
99
%
Transition Time (DRVH/DRVL)
Rise
tR
CLOAD = 3000 pF, 10%–90%
40
70
ns
Fall
tF
CLOAD = 3000 pF, 90%–10%
40
70
ns
Logic Input Low Voltage
MODE, SD, ADJ/FX3, ADJ/FX5
0.6
V
Logic Input High Voltage
MODE, SD, ADJ/FX3, ADJ/FX5
2.4
V
LINEAR REGULATOR CONTROLLER
Feedback Threshold
FB2
1.176
1.20
1.224
V
SD2 Pull-Up Current
SD2
SD2 = 1.2 V
4
µA
SD2 Threshold
0.7
1.2
1.8
V
Current Sinking Capability
DRV2
DRV2 = 2 V, FB2 = 1 V, SD2 = 5 V
20
45
mA
FB2 Input Leakage Current
IFB
FB2 = 1.2 V
50
nA
POWER-FAIL COMPARATOR
PFI Input Threshold
PFO from High to Low
1.176
1.20
1.224
V
PFI Input Hysteresis
24
mV
PFI Input Current
200
nA
PFO High Voltage
10 k
Ω Pull-Up to 5 V
4.8
V
PFO Low Voltage
10 k
Ω Pull-Up to 5 V
0.4
V
FAULT PROTECTION
Output Overvoltage Trip Threshold
With Respect to Nominal Output
115
120
125
%
Output Undervoltage Lockout Threshold
With Respect to Nominal Output
75
80
85
%
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.



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