Preliminary Datasheet

LP6252

www.lowpowersemi.com

Page 3 of 8

Absolute Maximum Ratings

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

Power Dissipation, PD @ TA = 25°C

Package Thermal Resistance

SOT23-6, JA ---------------------------------------------------------------------------------------------------------------250°C/W

TDFN-6, θja------------------------------------------------------------------------------------------------------------------95°C/W

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

Recommended Operating Conditions

Supply Input Voltage---------------------------------------------------------------------------------------------------2.2V to 5.5V

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

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

Operation Ambient Temperature Range--------------------------------------------------------------------- −40°C to 85°C

Electrical Characteristics

(Vin=3.5V,Vout=5V,Cin=10uF,Cout=22uF,L=4.7uH,R1=52.5K,R2=10K)

Parameter

Conditions

LP6252

Units

Min

Typ

Max

Supply Voltage

2.2

5.5

V

Output Voltage Range

2.5

5.5

V

UVLO

1.4

2.0

V

Over Output Voltage

Protection

5.4

6

V

Supply Current(Shutdown)

VEN=0V,Vin=5V

0.05

1

uA

Feedback Voltage

784

800

816

mV

Feedback Input Current

VFB=0.8V

50

nA

Switching Frequency

550

KHz

Maximum Duty Cycle

80

90

95

%

EN Input Low Voltage

0.4

V

EN Input High Voltage

1.4

V

Low-side Current Limit

2.7

3

A

High-side On Resistance

Vout=3.3V

110

Low-side On Resistance

70