RT9161 datasheet(3/10 Pages) RICHTEK

3 / 10 page

RT9161/A

DS9161/A-31 March 2007

www.richtek.com

Absolute Maximum Ratings

Input Voltage -----------------------------------------------------------------------------------------------------------

−0.3 to 14V

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

−40°C to 125°C

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

−65°C to 150°C

Power Dissipation, PD @ TA = 25

°C

SOT-23-3 --------------------------------------------------------------------------------------------------------------- 0.4W

SOT-89 ------------------------------------------------------------------------------------------------------------------ 0.571W

SOT-223 ---------------------------------------------------------------------------------------------------------------- 0.741W

TO-92 -------------------------------------------------------------------------------------------------------------------- 0.625W

Package Thermal Resistance (Note 4)

SOT-23-3,

θJA ---------------------------------------------------------------------------------------------------------- 250°C/W

SOT-23-3,

θJC --------------------------------------------------------------------------------------------------------- 140°C/W

SOT-89,

θJA ------------------------------------------------------------------------------------------------------------ 175°C/W

SOT-89,

θJC ------------------------------------------------------------------------------------------------------------ 100°C/W

SOT-223,

θJA----------------------------------------------------------------------------------------------------------- 135°C/W

SOT-223,

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

TO-92,

θJA -------------------------------------------------------------------------------------------------------------- 160°C/W

TO-92,

θJC-------------------------------------------------------------------------------------------------------------- 125°C/W

Electrical Characteristics

(TA = 25°C, CIN = 1

μF, COUT = 10μF, unless otherwise specified.)

Parameter

Symbol

Test Conditions

Min

Typ

Max

Units

Output Voltage Accuracy

ΔVOUT

IL = 1mA, VIN = 5V

-2

Output Voltage Temperature

Coefficient

150

PPM/

°C

Line Regulation

ΔVLINE

IL = 1mA, VIN= 4.5 ~ 12V

%VOUT

Load Regulation (Note1)

ΔVLOAD IL = 1mA ~ 300/500mA, VIN = 5V

30/50

RT9161

350

580

Current Limit

(Note 2)

RT9161A

ILIM

VIN= 5V, VOUT = 0V

500

900

Dropout Voltage (Note 3)

VDROP

IL = 300/500mA

450/750 600/1000

Standby Current

ISTANDBY IL = 0, VIN = 12V

110

180

μA

Note 1.

Regulation is measured at constant junction temperature, using pulsed ON time.

Note 2.

Current Limit is measured at constant junction temperature, using pulsed ON time.

Note 3.

The dropout voltage is defined as VIN -VOUT, which is measured when VOUT is VOUT(NORMAL)

− 100mV.

Note 4.

θJA is measured in the natural convection at TA = 25°C on a low effective single layer thermal conductivity test board of

JEDEC 51-3 thermal measurement standard.

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