1-60 (No.22023)
6.37SI-8050JF-F1 (IC192) : Switching Regulator
• Pin layout
• Pin function
• Block diagram
6.38 SI-8090JF (IC193) : Switching regulator
• Block Diagram
1 2 3 4 5
Pin No.
Pin function
1
Vin
2
SW out
3
GND
4
Vos
5
ON/OFF
ON/OFF
Soft-
Start
OSC
compalater
error amp
GND
ON/OFF
RESET
PReg
Over current
protect
Vin
Lach &
DRIVER
Thermal
protect
SW OUT
Reference
voltage
3
4
Vos
2
1
5
4
VOS
3
GND
5
1
Vin
2
SW OUT
Standard
voltage
Error amp
Comparator
Heating
protection
Over-current
protection
Reset
PReg
ON/OFF
Soft-
Start
ON/OFF
Latch
&
Driver
+
-
+
-
Oscillator