RT8048 datasheet(4/11 Pages) RICHTEK

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RT8048

DS8048-01

June 2011

www.richtek.com

Absolute Maximum Ratings

(Note 1)

Supply Input Voltage, VIN ---------------------------------------------------------------------------------------------- 6.5V

Power Dissipation, PD @ TA = 25

°C

WDFN-6L 2x2 ------------------------------------------------------------------------------------------------------------- 0.833W

Package Thermal Resistance (Note 2)

WDFN-6L 2x2,

θJA ------------------------------------------------------------------------------------------------------- 120°C/W

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

°C

Junction Temperature --------------------------------------------------------------------------------------------------- 150

°C

Storage Temperature Range -------------------------------------------------------------------------------------------

−65°C to 150°C

ESD Susceptibility (Note 3)

HBM ------------------------------------------------------------------------------------------------------------------------ 2kV

MM -------------------------------------------------------------------------------------------------------------------------- 200V

Recommended Operating Conditions

(Note 4)

Supply Input Voltage, VIN ---------------------------------------------------------------------------------------------- 2.5V to 5.5V

Junction Temperature Range ------------------------------------------------------------------------------------------

−40°C to 125°C

Ambient Temperature Range ------------------------------------------------------------------------------------------

−40°C to 85°C

Electrical Characteristics

Parameter

Symbol

Test Conditions

Min

Typ

Max

Unit

Quiescent Current

μA

Reference Voltage

VREF

0.588

0.6

0.612

VIN Rising

2.3

Under Voltage Lockout Threshold

VUVLO

VIN Falling

2.1

Shutdown Current

ISHDN

0.1

μA

Switching Frequency

fOSC

MHz

Logic-High VIH

1.5

VIN

EN Input Threshold

Voltage

Logic-Low

VIL

0.4

Thermal Shutdown Temperature

TSD

140

°C

Switch On Resistance, High

RPFET

ILX = 0.2A

250

Switch On Resistance, Low

RNFET

ILX = 0.2A

260

Peak Current Limit

ILIM

1.5

Output Voltage Line Regulation

VIN = 2.5V to 5.5V

%/V

Output Voltage Load Regulation

0mA < ILOAD < 0.6A

(VIN = 3.6V, TA = 25

°C unless otherwise specified)

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