nx2155h Microsemi Corporation, nx2155h Datasheet - Page 11

• Manufacturer Part Number: nx2155h
• Description: Single Power Supply Synchronous Pwm Controller
• Manufacturer: Microsemi Corporation

Demoboard Design( (VIN=12V, VOUT= 5V/10A,
FREUQNCY=400kHz)
Rev.1.1
04/16/09
R3
30k
C5
4.7u
5
7
VCC
RT
U1
HDRV
COMP
C3
LDRV
0.1u
OCP
BST
SW
FB
3
2
1
10
4
9
8
3k
R1
C4
0.1u
R7
30k
C21
1n
Figure 13 - Simplified demoboard schematic of NX2155H
C22
33p
R10
19.1k
HDRV
LDRV
750
R8
R9 100k
C23
220p
SW
SW
4
4
22u/25V
C9
22u/25V
M1
M2
C10
BUS
C18
100u/16v
SW
R17
2.15
C13
1000p
DO5010H-222MLD
1
L1
2
C14
47uF/6.3V/X5R
C15
47uF/6.3V/X5R
1
BUS
NX2155H
C19
47uF/6.3V/X5R
VOUT
GND
VOUT
11