RT9012 datasheet(4/11 Pages) RICHTEK

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RT9012

Preliminary

DS9012-06 August 2007

www.richtek.com

Electrical Characteristics

Parameter

Symbol

Test Conditions

Min

Typ

Max

Units

Input Voltage

VIN

VIN = 2.5V to 5.5V

2.5

5.5

IOUT = 150mA

120

Dropout Voltage

(Note 5)

VDROP

IOUT = 300mA

240

Output voltage range

VOUT

1.2

3.6

VOUT Accuracy

ΔV

IOUT = 1mA

-2

Line Regulation

ΔVLINE

VIN = (VOUT + 0.3V) to 5.5V or

VIN > 2.5V, whichever is larger

0.2

%/V

Load Regulation

ΔVLOAD 1mA < IOUT< 300mA

0.6

Current Limit

RLOAD = 1Ω

330

450

700

Quiescent Current

VEN > 1.5V

μA

Shutdown Current

IQ_SD

VEN < 0.4V

μA

VIH

VIN = 2.5V to 5.5V, Power On

1.5

EN Threshold

VIL

VIN = 2.5V to 5.5V, Shutdown

0.4

Output Voltage TC

100

ppm/

°C

Thermal Shutdown

TSD

170

°C

Thermal Shutdown Hysteresis

ΔTSD

°C

(VIN = VOUT + 1V, VEN = VIN, CIN = COUT = 1

μF, TA = 25°C, unless otherwise specified.)

To be continued

Recommended Operating Conditions

(Note 3)

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

Enable Input Voltage ------------------------------------------------------------------------------------------------------ 0V to 5.5V

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

−40°C to 125°C

Operation Ambient Temperature Range ------------------------------------------------------------------------------ 0

°C to 85°C

Absolute Maximum Ratings (Note 1)

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

Other I/O Pin Voltages --------------------------------------------------------------------------------------------------- 6V

Power Dissipation, PD @ TA = 25

°C

WDFN-8L 2x2 -------------------------------------------------------------------------------------------------------------- 0.606W

Package Thermal Resistance (Note 4)

WDFN-8L 2x2,

θJA --------------------------------------------------------------------------------------------------------- 165°C/W

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

°C

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

−65°C to 150°C

ESD Susceptibility (Note 2)

HBM (Human Body Mode) ---------------------------------------------------------------------------------------------- 2kV

MM (Machine Mode) ------------------------------------------------------------------------------------------------------ 200V

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