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LTC3523EUD-TRPBF データシートの表示(PDF) - Linear Technology
部品番号
コンポーネント説明
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LTC3523EUD-TRPBF
Synchronous 600mA Step-Up and 400mA Step-Down DC/DC Converters
Linear Technology
LTC3523EUD-TRPBF Datasheet PDF : 16 Pages
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LTC3523/LTC3523-2
BLOCK DIAGRAM
V
IN
1.8V TO 5.5V
+
C
IN
47μF
16
SHDN1
2
V
IN1
L1
4.7μH
5
SW1
BULK CONTROL
SIGNALS
SHUTDOWN
AND
V
BIAS
SHDN
MODE
OSC
ANTI-RING
PWM
LOGIC
AND
DRIVERS
CURRENT
SENSE
V
OUT
4
V
OUT
STEP-UP
1.8V TO 5.25V
I
ZERO
COMP
PWM/I
LIM
COMP
PGOOD1
3
+
I
LIM
+
REF
SLOPE COMPENSATION
FB1
SLP
1.2V
–9%
C
C1
R
Z
MODE
MODE
g
m
ERROR
AMPLIFIER
FB1
1
1.2V
C
C2
START-UP
SOFT-START
AND
THERM REG
R1
C
OUT
10μF
R2
STEP-UP
15
V
BAT
OSCILLATOR
OSC
0.6V
REFERENCE
1.2V
SLP
1V
THERMAL SHDN
MODE
10
SHARED
V
IN2
9
+
SLOPE COMPENSATION
SLP
PGOOD2
11
I
LIM
REF
FB2
0.6V
–9%
+
ZERO CURRENT
COMP
PWM/I
LIM
COMP
+
––
MODE
OSC
STEP-DOWN
0A
PWM
LOGIC
AND
DRIVERS
V
OUT
LIMIT
COMP
SW2
8
L2
4.7μH
GND2
0.66V
V
OUT
STEP-DOWN
0.615V TO 5.5V
SHDN2
SHUTDOWN
13
AND
V
BIAS
SHDN
C
C1
R
Z
GND1
6
GND2
7
MODE
MODE
g
m
ERROR
AMPLIFIER
FB2
12
0.6V
GND3
14
START-UP
SOFT-START
AND
THERM REG
3523 BD
R3
C
OUT
10μF
R4
3523fb
7
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