Preliminary

Datasheet

LP6206

LP6206 –00 Ver. 1.0 Datasheet

Dec.-2008

Page 3 of 7

Absolute Maximum Ratings

Supply Input Voltage---------------------------------------------------------------------------------------------------------------6V

Power Dissipation, PD @ TA = 25°C

SOT23-5--------------------------------------------------------------------------------------------------------600mW

Package Thermal Resistance

SOT23-5, θJA ---------------------------------------------------------------------------------------------------------------250°C/W

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

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

Recommended Operating Conditions

Supply Input Voltage-------------------------------------------------------------------------------------------------2.2V to 6V

EN Input Voltage -------------------------------------------------------------------------------------------------------0V to 5.5V

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

Operation Ambient TemperatureRange----------------------------------------------------------------------−40°C to 85°C

Electrical Characteristics

(Vin=2.4V,Vout=3.5V,Cin=10uF,Cout=10uF,L1=4.7uH,R1=178K,R2=100K,Ta=-40 ℃

to 85 ℃ ,unless otherwise

noted.Typical values are at TA=25℃.)

LP6206

Parameter

Conditions

Min

Typ

Max

Units

Supply Voltage

2.2

5

V

Output Voltage Range

2.5

6

V

Supply Current(Shutdown)

VEN=VOUT=0V,VSW=5V

0.05

1

uA

Supply Current

VFB=1.3V

0.39

mA

Feedback Voltage

1.2

1.25

1.3

V

Feedback Input Current

VFB=1.2V

50

nA

Switching Frequency

310

500

690

KHz

Maximum Duty Cycle

80

85

90

%

EN Input Low Voltage

0.4

V

EN Input High Voltage

1.4

V

EN Pull Down Resistance

1

Low-side On Resistance

Vout=3.3V

450

Low-side Current Limit

1.4

1.6

2

A

High-side On Resistance

Vout=3.3V

650