ISL9187 Intersil Corporation, ISL9187 Datasheet - Page 8

• Manufacturer Part Number: ISL9187
• Description: (ISL9107 / ISL9108) 1.5A 1.6MHz Low Quiescent Current High Efficiency Synchronous Buck Regulator
• Manufacturer: Intersil Corporation

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Block Diagram
*Note: Only applies to ISL9107.
RSI*
PG*
EN
FB
SHUTDOWN
BANDGAP
VREF4
VREF5
VREF3
PGOOD
DELAY
+
+
+
START
SOFT-
0.8V
SCP
SLOPE
COMP
8
+
*Note
EAMP
FIGURE 17. FUNCTIONAL BLOCK DIAGRAM
+
ISL9107, ISL9108
+
COMP
OSCILLATOR
SKIP
OCP
+
+
CONTROLLER
PROTECTION
MODE
PWM/PFM
VREF2
VREF1
DRIVER
LOGIC
ZERO-CROSS
SENSING
SHUTDOWN
CSA
+ +
December 21, 2007
GND
VIN
SW
FN6612.0