Preliminary Datasheet

LP3390

LP3390 Version 1.0 Datasheet

NOV.-2013

www.lowpowersemi.com

Page 4 of 8

Absolute Maximum Ratings



Supply Input Voltage-------------------------------------------------------------------------------−0.3V to 5.5V



LX Input Voltage ------------------------------------------------------------------------------------−0.3V to 36V



OVP Voltage------------------------------------------------------------------------------------------−0.3V to 32V



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



Power Dissipation, PD @ TA = 25°C SOT-23-6 -----------------------------------------------0.455W



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



Operation Temperature Range --------------------------------------------------------------- -−40°C to 80°C



Storage Temperature Range ---------------------------------------------------------------------−65°C to 150°C

Electrical Characteristics

Parameter

Symbol

Test Condition

Min

Typ.

Max

Units

System Supply Input

Operation voltage Range

2.5

5.5

V

Under Voltage Lock Out

UVLO

2.3

V

Supply Current

FB=0V, Switching

0.8

1.3

mA

Shut Down Current

0.1

1

uA

Line Regulation

3

%

Oscillator

Operation Frequency

1.2

MHz

Maximum Duty Cycle

89

92

96

%

Dimming Frequency

100

1M

Hz

Feedback1 Voltage

LP3390

185

200

215

mV

Feedback2Voltage

1220

1250

1280

mV

MOSFET

On Resistance of MOSFET

0.5

Ω

Protection

OVP Threshold

29

V

OVP Sink Current

5

μA

OCP

1250

mA

Shut Down Voltage

0.4

V

Enable Voltage

1.5

V