EUP3408
Typical Application Circuit (continued)
Figure 2. Fixed 1.2V/1.8V/3.3V Output
Pin Configurations
Package
Type
Pin Configurations
Package
Type
Pin Configurations
SOT23-5
TSOT23-5
ADJ Voltage
SOT23-5
TSOT23-5
Fixed Voltage
Pin Description
PIN
EN
GND
SW
V
IN
V
FB
V
OUT
Pin
1
2
3
4
5
5
DESCRIPTION
Chip Enable Pin. Forcing this pin above 1.5V enables the part. Forcing this pin below
0.3V shuts down the device. Do not leave EN floating.
Common Ground.
Switch Node Connection to Inductor. This pin connects to the drains of the internal main
and synchronous power MOSFET switches.
Supply Voltage Pin.
Feedback Pin (EUP3408).
Output Voltage Feedback Pin (EUP3408-1.2/1.8/3.3)
DS3408 Ver1.2
Nov. 2007
2
EUTECH [ EUTECH MICROELECTRONICS INC ]
