Preliminary Datasheet

LP3311S

LP3311s – 02 Version 2.0 Datasheet

May.-2013

www.lowpowersemi.com

Page 3 of 7

Absolute Maximum Ratings

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

SW

Input Voltage --------------------------------------------------------------------------------------------------------−0.3V to 43V

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

VDD

2.7

5.5

V

Under Voltage Lock Out

VDD

2.2

2.4

2.6

V

Supply Current

IDD

FB=0.2V, Switch

430

550

uA

Shut Down Current

IDD

VEN < 0.4V

0.1

1

uA

Line Regulation

VIN : 3.0~4.3V

2

%

Oscillator

Operation Frequency

FOSC

0.8

1

1.2

MHz

Maximum Duty Cycle

93

%

Feedback Voltage

LP3311S

185

200

215

mV

MOSFET

On Resistance of MOSFET

RDS(ON)

0.5

Ω

SW

Current Limit

ILM

1

A

Protection

OVP Threshold

VOVP

29

V

OVP Sink Current

5

μA

Shut Down Voltage

VEN

0.4

V

Enable on Voltage

VEN

1.4

V