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Part Name
Description
ADP1621 View Datasheet(PDF) - Analog Devices
Part Name
Description
Manufacturer
ADP1621
Constant-Frequency, Current-Mode Step-Up DC/DC Controller
Analog Devices
ADP1621 Datasheet PDF : 32 Pages
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ADP1621
SIMPLIFIED BLOCK DIAGRAM
V
REF
1.215V
FB
COMP
V
OSC
1.4V
FREQ
+
CS
+
n
PGND
GND
ERROR
AMPLIFIER
SOFT START
(2048 CYCLES)
g
m
PIN
5.5V
SET
OSC
SLOPE
COMP
S
R
PWM
COMPARATOR
GATE
DRIVER
GATE
UVLO
100k
Ω
IN
SDSN
5.5V
ADP1621
Figure 3. ADP1621 Simplified Block Diagram
Rev. A | Page 6 of 32
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