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ADP2311ACPZ-4-R7 Scheda tecnica(PDF) 4 Page - Analog Devices

Il numero della parte ADP2311ACPZ-4-R7
Spiegazioni elettronici  Dual 1 A, 18 V, Synchronous Step-Down Regulator with Fail-Safe Voltage Monitoring
PDF  20 Pages
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Produttore elettronici  AD [Analog Devices]
Homepage  http://www.analog.com
Logo AD - Analog Devices

ADP2311ACPZ-4-R7 Scheda tecnica(HTML) 4 Page - Analog Devices

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ADP2311
Data Sheet
Rev. B | Page 4 of 20
SPECIFICATIONS
PVIN1 = PVIN2 = 12 V, TJ = −40°C to +125°C, unless otherwise noted.
Table 1.
Parameter
Symbol
Test Conditions/Comments
Min
Typ
Max
Unit
POWER INPUT
PVIN1, PVIN2 pins
Power Input Voltage Range
VPVIN
4.5
18
V
Quiescent Current (PVIN1 + PVIN2)
IQ
No switching, FB1 = FB2 = 0.65 V
1.2
1.5
mA
Shutdown Current (PVIN1 + PVIN2)
ISHDN
EN = GND
10
20
µA
PVINx Undervoltage Lockout Threshold
PVINx Rising
4.2
4.5
V
PVINx Falling
3.5
3.7
V
FEEDBACK
FB1, FB2 pins
FBx Regulation Voltage
VFB
TJ = 0°C to +85°C
0.594
0.6
0.606
V
TJ = −40°C to +125°C
0.591
0.6
0.609
V
FBx Bias Current
IFB
0.01
0.1
µA
INTERNAL REGULATOR
VREG pin
VREG Voltage
4.7
5
5.3
V
Dropout Voltage
IVREG = 5 mA
300
mV
Regulator Current Limit
30
50
70
mA
MOSFET ON RESISTANCE
RDSON
Pin to pin measurements
High-Side On Resistance
VBST to VSW = 5 V
110
158
mΩ
Low-Side On Resistance
VREG = 5 V
60
90
mΩ
CURRENT LIMIT
High-Side Peak Current Limit
1.6
2
2.4
A
Low-Side Source Current Limit
1.9
2.6
3.1
A
Low-Side Sink Current Limit
0.5
1
A
Hiccup Time
4096
Cycles
SWITCH NODE
SW1, SW2 pins
SWx Minimum On Time
tMIN_ON
ISW = 0.5 A
100
ns
SWx Minimum Off Time
tMIN_OFF
165
ns
PWM SWITCHING FREQUENCY
fSW
250
300
350
kHz
SOFT START TIME
tSS
512
Cycles
ENABLE
EN pin
EN Rising Threshold
1.2
1.28
V
EN Falling Threshold
1.02
1.1
V
EN Source Current
EN voltage below falling threshold
5
µA
EN voltage above rising threshold
1
µA
POWER-ON RESET
POR pin
Power-On Reset Threshold
Falling threshold (VFB1 and VFB2)
93.5
95
96.5
%
Power-On Reset Hysteresis
1.5
%
Power-On Reset Default Deglitch Time
1.7
ms
POR Leakage Current
VPOR = 5 V
0.1
1
µA
POR Output Low Voltage
IPOR = 1 mA
65
90
mV
POWER FAIL INPUT AND OUTPUT
PFI and PFO pins
Power Fail Input Threshold
VPFI
Rising threshold
0.591
0.6
0.609
V
Power Fail Input Hysteresis
VPFI_HYST
25
33
mV
Power Fail Deglitch Time
8
Cycles
PFI Leakage Current
VPFI = 1.2 V
10
50
nA
PFO Leakage Current
VPFO = 5 V
0.1
1
µA
PFO Output Low Voltage
IPFO = 1 mA
65
90
mV



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