nx9415 Microsemi Corporation, nx9415 Datasheet - Page 5

• Manufacturer Part Number: nx9415
• Description: 5a Synchronous Buck Switching Regulator
• Manufacturer: Microsemi Corporation

BLOCK DIAGRAM
Rev.1.2
12/28/09
COMP
GND
VIN
VCC
FB
RT
START
Generator
Digital
start Up
Bias
0.8V
Regulator
COMP
5VREG
0.3V
5V
START
ramp
1.25V
0.8V
OSC
Figure 2 - Simplified block diagram of the NX9415
0.6V
CLAMP
UVLO
1.3V
CLAMP
S
R
Q
POR
OC
Hiccup Logic
START
START
Thermal
Shutdown
PWM
Control
Logic
SS_done
VCC
BST
PVCC
70%*Vp
FB
NX9415
D1
S1
SW
D2
S2
OCP
5