Preliminary Datasheet

LP6342

LP6342-03

Version 1.3 Datasheet

Oct.-2011

www.lowpowersemi.com

2 / 15

Functional Pin Description

2

1

8

7

6

5

4

3

GND

11

10

9

2

1

7

6

5

4

3

10

9

8

FB

PGOOD

VIN

VIN

EN

GND

GND

SW

SW

GND

GND

FB

PGOOD

VIN

VIN

EN

MSOP10

GND

GND

SW

SW

TDFN-10

1

6

5

4

3

2

EN

ESOP8

PGND

9

8

7

SW

GND

FB

VIN

VIN

LP6342

TOP VIEW

GND

GND

LP6342

Pi n Desc ript io n

Pin NO

PIN

DESCRIPTION

TDFN-10 MSOP10 ESOP8

1

1

1

EN

Enable pin. Active high. In shutdown, all functions are disabled drawing <1μA

supply current. Do not leave EN floating.

2, 3

2, 3

2,3

Vin

Supply Input. Power supply input pin. Must be closely decoupled to AGND with a

10μF or greater ceramic capacitor.

4

4

PGOOD

Power good output.

9,10

9,10

5,7,8

GND/PGND

Ground.

5

5

4

FB

Feedback Input. Connect FB to the center point of the external resistor

divider. Normal voltage for this pin is 0.6V.

6

6

GND

Ground.

7, 8

7, 8

6

SW

Switch Mode Connection to Inductor. This pin connects to the drains of the

internal main and synchronous power MOSFET switches.

11

11

9

PAD

Ground pad.

Function Block Diagram