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ISL8012 데이터 시트보기 (PDF) - Renesas Electronics
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ISL8012
2A Low Quiescent Current 1MHz High Efficiency Synchronous Buck Regulator
Renesas Electronics
ISL8012 Datasheet PDF : 17 Pages
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ISL8012
Typical Application
INPUT 2.7V TO 5.5V
C1
2x10µF
R1
100k
VIN
LX
PGND
ISL8012
EN
SGND
PG
VFB
L
C2
2x10µF
OUTPUT
1.8V/2A
R2
124k
C3*
220pF
R3
100k
MODE
RSI
Block Diagram
FIGURE 1. TYPICAL APPLICATION DIAGRAM
MODE
EN
VFB
PG
RSI
SOFT-START
SHUTDOWN
BANDGAP
0.8V
EAMP
27pF
390k
OSCILLATOR
+
COMP
+
SHUTDOWN
PWM/PFM
LOGIC
CONTROLLER
PROTECTION
DRIVER
0.864V
+
+
0.736V
SLOPE
COMP
1ms
DELAY
+
OCP
+
CSA
1V
+
SKIP
0.25V
ZERO-CROSS
SENSING
FN6616 Rev 2.00
December 1, 2011
0.2V
SCP
+
FIGURE 2. FUNCTIONAL BLOCK DIAGRAM
*C3 is optional
VIN
LX
GND
Page 3 of 17
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