IC Data Sheets
8.
8.7
Diagram
, B12, G5318RE1D (IC U4103)
Figure 8-8 Internal block diagram and pin configuration
20030_307.eps
Block diagram
Pinning information
TRIP
PGOOD
EN
FB
LX
VCC
DH
BST
4
1
2
3
8
7
6
5
9
10
Thermal
Pad
RF
DL
11 GND
TRIP
PGOOD
EN
FB
LX
VCC
DH
BST
4
1
2
3
8
7
6
5
9
10
Thermal
Pad
RF
DL
11 GND
G5318RE1D
PWM
controller
0.7V
Reference
PGOOD
BST
DH
LX
VCC
DL
GND
LX
FB
EN
RF
Freq
Setting
POR
On-Time
Off-Time
DISCHG
VCC
OT
OVP
UVP
SKIP/force PWM
OCP
TRIP
PWM
controller
0.7V
Reference
PGOOD
BST
DH
LX
VCC
DL
GND
LX
FB
EN
RF
Freq
Setting
POR
On-Time
Off-Time
DISCHG
VCC
OT
OVP
UVP
SKIP/force PWM
OCP
TRIP