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ADP2389 датащи(PDF) 4 Page - Analog Devices

номер детали ADP2389
подробное описание детали  18 V, 12 A Step-Down Regulator with Programmable Current Limit
PDF  23 Pages
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производитель  AD [Analog Devices]
домашняя страница  http://www.analog.com
Logo AD - Analog Devices

ADP2389 датащи(HTML) 4 Page - Analog Devices

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ADP2389/ADP2390
Data Sheet
SPECIFICATIONS
VPVIN = VVIN = 12 V, TJ = −40°C to +125°C for minimum/maximum specifications, and TA = 25°C for typical specifications, unless
otherwise noted.
Table 1.
Parameter
Symbol
Test Conditions/Comments
Min
Typ
Max
Units
SUPPLY VOLTAGE (PVIN AND VIN)
PVIN Voltage Range
VPVIN
4.5
18
V
VIN Voltage Range
VVIN
4.5
18
V
Quiescent Current
IQ
No switching
1.16
1.5
mA
Shutdown Current
ISHDN
EN = GND
7.5
20
µA
VIN Undervoltage Lockout Threshold
UVLO
VIN rising
4.2
4.4
V
VIN falling
3.5
3.7
V
FEEDBACK (FB)
FB Regulation Voltage
VFB
0°C < TJ < 85°C
0.597
0.6
0.603
V
−40°C < TJ < +125°C
0.594
0.6
0.606
V
FB Bias Current
IFB
0.01
0.1
µA
ERROR AMPLIFIER (EA)
Transconductance
gm
450
500
550
µS
EA Source Current
ISOURCE
40
50
60
µA
EA Sink Current
ISINK
40
50
60
µA
INTERNAL REGULATOR (VREG)
VREG Voltage
VVREG
IVREG = 10 mA
4.8
5
5.2
V
Dropout Voltage
IVREG = 50 mA
355
mV
Regulator Current Limit
100
mA
SWITCH NODE (SW)
On Resistance1
High-Side
RDSON_H
VBOOT = 5 V
17
30
mΩ
Low-Side
RDSON_L
VVREG = 5 V
4.5
9
mΩ
SW Minimum On Time2
tMIN_ON
100
ns
SW Minimum Off Time2
tMIN_OFF
150
ns
CURRENT LIMIT
ILIM Voltage
VILIM
0.592
V
ILIM Current Range
IILIM
1.8
12
µA
High-Side Peak Current Limit
IOCP
RILIM = 59 kΩ
15
16.8
18.6
A
Low-Side Negative Current Limit2
4
A
BST
Bootstrap Voltage
VBOOT
4.6
5
5.4
V
OSCILLATOR (RT)
Switching Frequency
fSW
RT = 100 kΩ
540
600
660
kHz
Switching Frequency Range
200
2200
kHz
FAST TRANSIENT WINDOW (FTW)
Fast Transient Response Window
RFTW = 100 kΩ
±2
%
Minimum Fast Transient Response Window2
±1
%
SS
SS Pin Pull-Up Current
ISS
2.7
3.4
4.1
µA
Rev. 0 | Page 4 of 23



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