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ADP2387ACPZN-R7 数据表(PDF) 4 Page - Analog Devices

部件名 ADP2387ACPZN-R7
功能描述  20 V, 6 A, Synchronous, Step-Down DC-to-DC Regulator
PDF  25 Pages
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制造商  AD [Analog Devices]
网页  http://www.analog.com
标志 AD - Analog Devices

ADP2387ACPZN-R7 数据表(HTML) 4 Page - Analog Devices

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ADP2387
Data Sheet
Rev. C | Page 4 of 25
SPECIFICATIONS
VPVIN = 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
Unit
PVIN
PVIN Voltage Range
VPVIN
4.5
20
V
Quiescent Current
IQ
No switching
2.4
2.9
3.6
mA
Shutdown Current
ISHDN
EN = GND
50
80
110
µA
PVIN Undervoltage Lockout Threshold
UVLO
PVIN rising
4.3
4.4
V
PVIN falling
3.6
3.8
V
FB
FB Regulation Voltage
VFB
0°C < TJ < 85°C
596.4
600
603.6
mV
−10°C < TJ < +115°C
595.2
600
604.8
mV
−40°C < TJ < +125°C
594
600
606
mV
FB Bias Current
IFB
0.01
0.1
µA
ERROR AMPLIFIER (EA)
Transconductance
gm
380
480
580
µS
EA Source Current
ISOURCE
40
60
80
µA
EA Sink Current
ISINK
40
60
80
µA
INTERNAL REGULATOR (VREG)
VREG Voltage
VVREG
VPVIN = 12 V, IVREG = 50 mA
7.6
8
8.4
V
Dropout Voltage
VPVIN = 12 V, IVREG = 50 mA
350
mV
Current-Limit Regulator
62
100
138
mA
SW
High-Side On Resistance1
RDSON_HS
VBST − VSW = 5 V
44
70
mΩ
Low-Side On Resistance1
RDSON_LS
VVREG = 8 V
11
18
mΩ
SW Minimum On Time
tMIN_ON
130
165
ns
SW Minimum Off Time
tMIN_OFF
200
260
ns
BST
Bootstrap Voltage
VBOOT
4.6
5
5.4
V
OSCILLATOR (RT PIN)
Switching Frequency
fSW
RT = 100 kΩ
540
600
660
kHz
Switching Frequency Range
200
1400
kHz
CURRENT LIMIT
High-Side Peak
RILIM = 44.2 kΩ
7.7
9.2
10.7
A
RILIM = 66.5 kΩ
5.1
6.1
7.1
A
RILIM = 133 kΩ
2.3
2.9
3.5
A
Low-Side Negative2
2.5
A
ILIM Voltage2
VILIM
0.6
V
ILIM Current Range2
IILIM
4
15
µA
SS
Internal Soft Start
1600
Clock cycles
SS Pin Pull-Up Current
ISS_UP
2.2
3.1
3.8
µA
PGOOD
Power-Good Range
FB Rising Threshold
PGOOD from low to high
95
%
FB Rising Hysteresis
PGOOD from high to low
5
%
FB Falling Threshold
PGOOD from low to high
105
%
FB Falling Hysteresis
PGOOD from high to low
11.7
%
Power-Good Deglitch Time
PGOOD from low to high
1024
Clock cycles
PGOOD from high to low
16
Clock cycles
Power-Good Leakage Current
VPGOOD = 5 V
0.01
0.1
µA
Power-Good Output Low Voltage
IPGOOD = 1 mA
125
190
mV



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