EUP3412

DS3412 Ver1.3 Mar. 2009

2

Pin Configurations

Package Type

Pin Configurations

Package Type

Pin Configurations

MSOP-10

TDFN-10

Pin Description

Name

MSOP-10

TDFN-10

DESCRIPTION

EN

1

1

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.

VIN

2,3

2,3

Supply voltage input.

GND

4

4

Analog ground.

FB

5

5

Feedback pin.

MODE

6

6

Pulling the MODE pin high allows the device to be forced into fixed

frequency operation.

SW

7,8

7,8

Switch node connection to inductor. This pin connects to the drains of the

internal main and synchronous power MOSFET switches.

PGND

9,10

9,10

Power ground.

Block Diagram

Figure 2.