Datasheet


SLUS489 − OCTOBER 2001
20
www.ti.com
APPLICATION INFORMATION
1
3
2
4
5
6
7
8
SYNC/SD
CCS
RT
CCM
BUCK
PFM
COMP
FB
TPS43000
9
10
11
12
13
14
15
16
VIN
VOUT
NDRV
GND
PDRV
VP
SWP
SWN
D1
ZHCS1000
Q2
Si9804DY
UDG−01038
C8
120 µF
C7
100 µF
L1
3.3 µH
V
IN
V
IN
V
OUT
V
IN
R4
49.9 kΩ
C4
0.47 µF
C6
0.47 µF
R5
1 kΩ
R3
24.9 kΩ
R1
750 kΩ
C3
680 pF
C5
0.47 µF
C2
330 pF
C1
3300 pF
R2
30.1 kΩ
V
IN
R
BIAS
53.6 kΩ
Figure 6. 12-V Output Non-Synchronous Boost Topology