RT9199GS datasheet(5/13 Pages) RICHTEK

5 / 13 page

RT9199

DS9199-07

September 2007

www.richtek.com

Electrical Characteristics

(VIN = 1.8V, VCNTL = 5V, VREFEN = 0.9V, COUT = 10

μF (Ceramic), TA = 25°C, unless otherwise specified)

Parameter

Symbol

Test Conditions

Min

Typ

Max

Units

Input

VCNTL Operation Current

ICNTL

IOUT = 0A

2.5

Standby Current (Note 7)

ISTBY

VREFEN < 0.2V (Shutdown),

RLOAD = 180Ω

μA

Output (DDR II)

Output Offset Voltage (Note 5)

VOS

IOUT = 0A

−20

+20

IOUT = +1.8A

Load Regulation (Note 6)

ΔVLOAD

IOUT = −1.8A

−20

+20

Protection

Current limit

ILIMIT

2.0

3.5

Thermal Shutdown Temperature TSD

VCNTL = 5V

125

170

°C

Thermal Shutdown Hysteresis

ΔTSD

VCNTL = 5V

°C

REFEN Shutdown

VIH

Enable

0.6

Shutdown Threshold

VIL

Shutdown

0.15

Absolute Maximum Ratings

(Note 1)

Input Voltage, VIN ------------------------------------------------------------------------------------------------------ 6V

Control Voltage, VCNTL ----------------------------------------------------------------------------------------------- 6V

Power Dissipation, PD @ TA = 25

°C

SOP-8 ------------------------------------------------------------------------------------------------------------------- 0.909W

SOP-8 (Exposed Pad) ---------------------------------------------------------------------------------------------- 1.176W

Package Thermal Resistance (Note 4)

SOP-8,

θJA -------------------------------------------------------------------------------------------------------------- 110° C/W

SOP-8,

θJC -------------------------------------------------------------------------------------------------------------- 60° C/W

SOP-8 (Exposed Pad),

θJA ------------------------------------------------------------------------------------------ 86° C/W

SOP-8 (Exposed Pad),

θJC ----------------------------------------------------------------------------------------- 15° C/W

Junction Temperature ------------------------------------------------------------------------------------------------- 125

°C

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

Recommended Operating Conditions (Note 3)

Input Voltage, VIN ------------------------------------------------------------------------------------------------------ 1.6V to 5.5V

Control Voltage, VCNTL ----------------------------------------------------------------------------------------------- 5V

± 5%

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

−40°C to 125°C

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