RT9185BGS datasheet(3/14 Pages) RICHTEK

3 / 14 page

RT9185

DS9185-11

March 2007

www.richtek.com

Absolute Maximum Ratings

(Note 1)

Supply Input Voltage -------------------------------------------------------------------------------------------------- 7V

Power Dissipation, PD @ TA = 25

°C

SOP-8 -------------------------------------------------------------------------------------------------------------------- 0.625W

TO-252-5 ----------------------------------------------------------------------------------------------------------------- 1.471W

TO-263-5 ----------------------------------------------------------------------------------------------------------------- 2.222W

Package Thermal Resistance (Note 6)

SOP-8,

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

TO-252-5,

θJA ----------------------------------------------------------------------------------------------------------- 68°C/W

TO-263-5,

θJA ----------------------------------------------------------------------------------------------------------- 45°C/W

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

°C

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

°C

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

−65°C to 150°C

ESD Susceptibility (Note 2)

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

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

Electrical Characteristics

(VDD = 5V, CIN = 1

μF, TA = 25°C, for each LDO unless otherwise specified)

Parameter

Symbol

Test Conditions

Min

Typ

Max

Units

VOUT1

IOUT1 = 1mA

3.315

3.35

3.415

VOUT2

IOUT2 = 1mA

2.525

2.55

2.60

RT9185A

1.782

1.8

1.836

Output Voltage Accuracy

VOUT3

RT9185B

IOUT3 = 1mA

1.485

1.5

1.530

ILIM1

RLOAD = 1Ω

1.5

1.9

ILIM2

R LOAD = 1Ω

0.8

1.3

Current Limiting

ILIM3

R LOAD = 1Ω

0.3

0.5

Quiescent Current (triple LDOs)

(Note 5)

IDD

IOUT = 0mA

0.4

0.8

ΔVDROP1 IOUT1 = 1.5A

600

1085

Dropout Voltage

ΔVDROP2 IOUT2 = 0.8A

700

Line Regulation (triple LDOs)

ΔVLINE

IOUT = 1mA, VDD = 4V to 6V

ΔVLOAD1 VOUT1, 1mA < IOUT1 <1.5A

ΔVLOAD2 VOUT2, 1mA < IOUT2 <0.8A

Load Regulation

(Note 4)

ΔVLOAD3 VOUT3, 1mA < IOUT3 < 0.3A

Temperature Coefficient

PPM

Thermal Shutdown

TSD

125

165

°C

Recommended Operating Conditions

(Note 3)

Supply Input Voltage -------------------------------------------------------------------------------------------------- 3.5V to 5.5V

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

−40°C to 125°C

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