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AX4102
BLOCK DIAGRAM
SW
Vcc
Thermal
Shutdown
Oscillation
Circuit
Reference Voltage
PWM - Switched
Control Circuit
+
-
FB
Vss
110uA
VEN
EN
PIN ASSIGNMENT
OCSET
The package of AX4102 is SOP-8L; the pin assignment is given by:
Name
Description
FB 1
EN 2
Ocset 3
Vcc 4
( Top View )
SOP–8L
8 Vss
7 Vss
6 SW
5 SW
FB
EN
OCSET
VCC
SW
Feedback pin
Power-off pin
H:normal operation(Step-down)
L:Step-down operation stopped
(All circuits deactivated)
Add an external resistor to set
max switch output current.
IC power supply pin
Switch pin. Connect external
inductor & diode here.
VSS GND pin
ORDER/MARKING INFORMATION
Order Information
Top Marking
AX4102 X X X
Frequency Package Type Packing
Blank : 330Khz S: SOP-8L Blank : Tube
A : Taping
AX Logo
4 1 0 2 Part number
Y Y W W X ID code:internal
WW: 01~52
Year: 10=2010
11=2011
2/9
Axelite Confidential Materials, do not copy or distribute without written consent.
Rev.1.6 Aug.06, 2010