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ADP2323ACPZ-R7 数据表(PDF) 4 Page - Analog Devices

部件名 ADP2323ACPZ-R7
功能描述  Dual 3 A, 20 V Synchronous Step-Down Regulator with Integrated High-Side MOSFET
PDF  32 Pages
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制造商  AD [Analog Devices]
网页  http://www.analog.com
标志 AD - Analog Devices

ADP2323ACPZ-R7 数据表(HTML) 4 Page - Analog Devices

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ADP2323
Data Sheet
Rev. A | Page 4 of 32
SPECIFICATIONS
PVIN1 = PVIN2 = 12 V at TJ = −40°C to +125°C, unless otherwise noted.
Table 1.
Parameters
Symbol
Test Conditions/Comments
Min
Typ
Max
Units
POWER INPUT (PVINx PINS)
Power Input Voltage Range
V
PVIN
4.5
20
V
Quiescent Current (PVIN1 + PVIN2)
I
Q
MODE = GND, no switching
3
5
mA
Shutdown Current (PVIN1 + PVIN2)
I
SHDN
EN1 = EN2 = GND
50
100
µA
PVINx Undervoltage Lockout Threshold
UVLO
PVINx Rising
4.3
4.5
V
PVINx Falling
3.5
3.8
V
FEEDBACK (FBx PINS)
FBx Regulation Voltage1
V
FB
PVINx = 4.5 V to 20 V
0.594
0.6
0.606
V
FBx Bias Current
I
FB
0.01
0.1
µA
ERROR AMPLIFIER (COMPx PINS)
Transconductance
g
m
230
300
370
µS
EA Source Current
I
SOURCE
25
45
65
µA
EA Sink Current
I
SINK
25
45
65
µA
INTERNAL REGULATOR (INTVCC PIN)
INTVCC Voltage
4.75
5
5.25
V
Dropout Voltage
I
INTVCC = 30 mA
400
mV
Regulator Current Limit
40
75
120
mA
SWITCH NODE (SWx PINS)
High-Side On Resistance2
V
BST to VSW = 5 V
90
130
mΩ
SWx Peak Current Limit
R
ILIM = floating, VBST to VSW = 5 V
4
4.8
5.8
A
R
ILIM = 47 kΩ, VBST to VSW = 5 V
2.3
3
3.7
A
R
ILIM = 15 kΩ, VBST to VSW = 5 V
0.8
1.5
2.2
A
SWx Minimum On Time3
t
MIN_ON
130
ns
SWx Minimum Off Time3
t
MIN_OFF
150
ns
LOW-SIDE DRIVER (DLx PINS )
Rising Time3
C
DL = 2.2 nF, see Figure 19
20
ns
Falling Time3
C
DL = 2.2 nF, see Figure 22
10
ns
Sourcing Resistor
4
6
Ω
Sinking Resistor
2
4.5
Ω
OSCILLATOR (RT PIN)
PWM Switching Frequency
f
SW
R
OSC = 100 kΩ
530
600
670
kHz
PWM Frequency Range
250
1200
kHz
SYNCHRONIZATION (SYNC PIN)
SYNC Input
SYNC configured as input
Synchronization Range
300
1200
kHz
Minimum On Pulse Width
100
ns
Minimum Off Pulse Width
100
ns
High Threshold
1.3
V
Low Threshold
0.4
V
SYNC Output
SYNC configured as output
Frequency on SYNC Pin
f
CLKOUT
f
SW
kHz
Positive Pulse Time
100
ns
SOFT START (SSx PINS)
SSx Pin Source Current
I
SS
2.5
3.5
4.5
µA



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