LP6270 datasheet(4/6 Pages) POWER

4 / 6 page

Preliminary Datasheet

LP6270

LP6270QVF Version 1.0 Datasheet

NOV.-2013

www.lowpowersemi.com

Page 4 of 6

Absolute Maximum Ratings



Input Voltage to GND -----------------------------------------------------------------------------7V



EN Voltage ------------------------------------------------------------------------------------------0.3V to 7V



Operation Junction Temperature Range ---------------------------------------------------−40°C to 125°C



Maximum Soldering Temperature (at leads, 1 0sec) --------------------------------------300℃



Maximum Power Dissipation (PD) --------------------------------------------------------------0.25W



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

Electrical Characteristics

Parameter

Symbol

Test Condition

Min

Typ.

Max

Units

System Supply Input

Operation voltage Range

VDD

2.7

5.5

Under Voltage Lock Out

VDD

2.4

Supply Current

IDD

FB=0V, Switching

0.8

1.3

Shut Down Current

IDD

VEN < 0.4V

0.1

Line Regulation

VIN : 3.0~4.3V

Oscillator

Operation Frequency

FOSC

0.8

1.1

MHz

Maximum Duty Cycle

Feedback Voltage

600

MOSFET

On Resistance of MOSFET

RDS(ON)

0.3

Protection

Boost OCP

2600

Current Limit OCP

1500

Shut Down Voltage

VEN

0.4

Enable Voltage

VEN

1.5

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