Preliminary

LP6217

LP6217 –00 Version 1.0 Datasheet

Sep.-2010

www.lowpowersemi.com

Page 3 of 6

Absolute Maximum Ratings

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

Package Thermal Resistance

SOT23-6, θJA ---------------------------------------------------------------------------------------------------------------68°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

SW Pin Voltage----------------------------------------------------------------------------------------------------------------- 26V

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

Electrical Characteristics

Parameter

Conditions

LP6217

Units

Min

Typ. Max

Supply Voltage

2.2

5

V

Output Voltage Range

2.5

24

V

Supply Current(Shutdown)

VEN=VOUT=0V,VSW=5V

0.05

1

uA

Supply Current

VFB=1.3V

0.2

mA

Disable Supply Current

EN=GND

0.1

uA

Feedback Voltage

0.588

0.6

0.612

V

Feedback Input Current

VFB=1.2V

50

nA

Switching Frequency

1

MHz

Maximum Duty Cycle

80

85

90

%

EN Input Low Voltage

0.6

V

EN Input High Voltage

1.4

V

Mosfet On Resistance

200

mΩ

Mosfet Voltage(VDS)

26

V

NMOS Current Limit

2.1

A

OCP Adjustable Range

R3=10k-100kΩ

0.5

2.5

A

Soft-start Reset Switch Resistance

100

Ω

Soft-start Input Source Current

VSS=1.2V

4.0

uA