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ADP2311ACPZ-4-R7 Folha de dados(PDF) 3 Page - Analog Devices

Nome de Peças ADP2311ACPZ-4-R7
Descrição Electrónicos  Dual 1 A, 18 V, Synchronous Step-Down Regulator with Fail-Safe Voltage Monitoring
PDF  20 Pages
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Fabricante Electrônico  AD [Analog Devices]
Página de início  http://www.analog.com
Logo AD - Analog Devices

ADP2311ACPZ-4-R7 Folha de dados(HTML) 3 Page - Analog Devices

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Data Sheet
ADP2311
Rev. B | Page 3 of 20
FUNCTIONAL BLOCK DIAGRAM
+
0.6V
AMP1
CONTROL
LOGIC
AND
MOSFET
DRIVER
WITH
ANTI-CROSS
PROTECTION
BST1
SW1
I1MAX
HICCUP
MODE
DRIVER
VREG
+
–
–
–
OVP
PVIN1
UVLO
PGND1
SLOPE RAMP1
CLK1
LOW-SIDE
CURRENT
SENSE
+
SOFT
START
+
0.579V
ITIMER
DELAY
TIMER
POR1
POR1
POR2
PFO
0.6V
0.6V
PFI
VM2
POR2
–
+
1.2V
1µA
4µA
POWER-UP
AND
POWER-DOWN
SEQUENCE
CONTROL
VREG
PVIN1
GND
5V
REGULATOR
OSC
CLK1
CLK2
SLOPE RAMP1
SLOPE RAMP2
FB2
FB1
ADP2311
POR1
+
48mV
+
POR
CONTROL
LOGIC
ACS1
–
+
DRIVER
+
+
RESET
GENERATOR
–
–
ACS1
OCP
CMP1
0.7V
BOOST
REGULATOR
+
0.6V
AMP2
CONTROL
LOGIC
AND
MOSFET
DRIVER
WITH
ANTI-CROSS
PROTECTION
BST2
SW2
I2MAX
HICCUP
MODE
DRIVER
VREG
+
–
–
OVP
PVIN2
UVLO
PGND2
SLOPE RAMP2
CLK2
LOW-SIDE
CURRENT
SENSE
+
SOFT
START
+
0.579V
POR2
ACS1
–
+
DRIVER
+
–
+
–
+
+
ACS2
OCP
CMP2
0.7V
BOOST
REGULATOR
FB1
TIMER
FB2
POR
WDI
EN
RSTO
RSTO
Figure 3.



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