nx4110 Microsemi Corporation, nx4110 Datasheet - Page 4

• Manufacturer Part Number: nx4110
• Description: 1a Synchronous Buck Switcher With Fet On Board
• Manufacturer: Microsemi Corporation

BLOCK DIAGRAM
Rev. 2.0
12/30/09
PGOOD
FB
start
VIN
Soft start
11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: [phone]
POR
Vref
CLK
Hiccup
timer
Fig. 2 - Simplified block diagram of the NX4110
OCPB
SS_finished
PWM comparator
3 cycle
counter
Analog Mixed Signal Group
OSC
POR
Microsemi
one shot
FB
0.9*Vref
S
R
OCPB
Q
Thermal
POR
Shutdown
VIN
UVLO
PWM
Vref
Control
Logic
Bias
Generator
+
-
NX4110
GND
SW
VIN
4