Preliminary Datasheet

LP3315

LP3315– 00 Version1.0 Datasheet

Feb.-2012

www.lowpowersemi.com

Page 3 of 8

Absolute Maximum Ratings

Supply Input Voltage---------------------------------------------------------------------------------------------------−0.3V to 6.0V

LX Input Voltage --------------------------------------------------------------------------------------------------------−0.3V to 30V

The Other Pins ----------------------------------------------------------------------------------------------------------−0.3V to 5.5V

Lead Temperature (Soldering, 10 sec.) -------------------------------------------------------------------------------- 260°C

Operation Temperature Range ---------------------------------------------------------------------------------

Storage Temperature Range ----------------------------------------------------------------------------------------

Electrical Characteristics

Parameter

Symbol

Test Condition

Min

Typ.

Max

Units

System Supply Input

Operation voltage Range

2.7

6

V

Under Voltage Lock Out

2.2

2.4

2.6

V

Supply Current

FB=1.2V, Switch

430

550

uA

Shut Down Current

0.1

1

uA

Line Regulation

2

%

Oscillator

Operation Frequency

1.2

MHz

Maximum Duty Cycle

93

%

Feedback Voltage

LP3315

1.22

1.25

1.28

V

MOSFET

On Resistance of MOSFET

0.4

Ω

SW Current Limit

ILM

1

A

Protection

Shut Down Voltage

0.3

V

Enable on Voltage

1.0

V