EUP3420
Pin Configurations
Package Type
Pin Configurations
Package Type
Pin Configurations
MSOP-10
TDFN-10
Pin Description
Name
MSOP-10 TDFN-10
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.
EN
1
1
VIN
GND
FB
2,3
4
2,3
4
Supply voltage input.
Analog ground.
Feedback pin.
5
5
Pulling the MODE pin high allows the device to be forced into fixed
MODE
6
6
frequency operation.
Switch node connection to inductor. This pin connects to the drains of the
internal main and synchronous power MOSFET switches.
SW
7,8
7,8
PGND
9,10
9,10
Power ground.
Block Diagram
Figure 2.
DS3420 Ver1.2 Mar. 2009
2
EUTECH [ EUTECH MICROELECTRONICS INC ]
