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ISL8011 Просмотр технического описания (PDF) - Renesas Electronics
Номер в каталоге
Компоненты Описание
производитель
ISL8011
1.2A Integrated FETs, High Efficiency Synchronous Buck Regulator
Renesas Electronics
ISL8011 Datasheet PDF : 10 Pages
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ISL8011
Typical Applications
VIN
2.7V TO 5.5V
C1
10µF
R1
100k
ISL8011
PVIN
PHASE
VCC
C0.31µF
EN
PGND
SGND
FB
POR
GND
L
1.8µH
C2
10µF
VOUT
1.3V, 1.2V
R2
61.9k
R3
100k
FIGURE 10. TYPICAL APPLICATION FOR ADJUSTABLE VERSION
Block Diagram
VCC
SOFT-START
SHUTDOWN
-
EA
EN
BANDGAP
+
0.8V
30pF
SHUTDOWN
50
270k
OSCILLATOR
+
COMP
-
PWM CONTROL
AND DRIVERS
+
PVIN
PHASE
PGND
FB
POR
SLOPE
COMPENSATION
-
0.864V
+
+
0.736V
-
+
OCP
-
+
CSA1
-
0.85V
+
Z
C
CSA-2
200ms
DELAY
0.2V
-
SCP
+
SGND
GND
FIGURE 11. FUNCTIONAL BLOCK DIAGRAM
FN9254 Rev 2.00
August 4, 2009
Page 6 of 10
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