IC Data Sheets
8.
8.3
Diagram
, APL5910 (IC U5)
Figure 8-3 Internal block diagram and pin configuration
19830_301_152001.eps
152001
Block diagram
Pinning information
POK
EN
VIN
VCNTL
1
2
3
4
GND
FB
VOUT
NC
8
7
6
5
Thermal
Shutdown
GND
VOUT
VIN
EN
VCNTL
POK
90%
V
REF
FB
Dela
y
0.8V
Control Logic
and
Soft-Start
VCNTL
5
µ
A
Enable
POR
POR
Error
Amplifier
Power-
On-Reset
(POR)
PW
O
K
Current-Limit
and
Short Current-Limit
So
ft-
S
ta
rt
E
na
b
l
e
V
REF
0.8V
ISE
N