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ADP1876ACPZ-R7 Datenblatt(PDF) 3 Page - Analog Devices

Teilenummer ADP1876ACPZ-R7
Bauteilbeschribung  600 kHz Dual Output Synchronous Buck
PDF  24 Pages
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Hersteller  AD [Analog Devices]
Direct Link  http://www.analog.com
Logo AD - Analog Devices

ADP1876ACPZ-R7 Datenblatt(HTML) 3 Page - Analog Devices

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Data Sheet
ADP1876
Rev. A | Page 3 of 24
FUNCTIONAL BLOCK DIAGRAM
Figure 2. Functional Block Diagram
DUPLICATE FOR
CHANNEL 2
BST1
PGND1
+
–
+
–
+
–
+
–
+
–
+
–
FB2
0.6V
OV
UV
PGOOD1
CURRENT SENSE
AMPLIFIER
DH1
DL1
ILIM2
SW1
VREF = 0.6V
6.5µA
+
+
–
ERROR
AMPLIFIER
FB1
COMP1
SS1
PWM
COMPARATOR
DL
DRIVER
SLOPE COMP AND
RAMP GENERATOR
CURRENT-
LIMIT
CONTROL
VCCO
RAMP1
50µA
3.2V
gm
OV1
+
TRK1
CS GAIN
DRIVER LOGIC
CONTROL AND
STATE
MACHINE
OVER_LIM1
PULSE SKIP
OVER_LIM1
LDO
LOGIC
EN1
EN2
VIN
UVLO
OSCILLATOR
600kHz
LINEAR
REGULATOR
VOUTLDO
VINLDO
PH1
PH2
REF
VCCO
OV
UV
0.6V
THERMAL
SHUTDOWN
AGND
0.6V
+
–
+
–
VCCO
ADP1876
VDL
FAULT
OV1
LOGIC
OVER_LIM1
OV1
EN1
EN1_SW
LOGIC
UV1
1kΩ
0.9V
DCM
ZERO CROSS
DETECT
12kΩ
AV = 3, 6, 12, 24
VCCO
EN1_SW
EN2_SW
NC
–
+



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