LP2985LV

150mA LOW NOISE, LOW DROPOUT REGULATOR

WITH SHUTDOWN FOR OUTPUT VOLTAGES <2.3 V

SLVS552 − OCTOBER 2004

6

POST OFFICE BOX 655303

Continuous input voltage range

−0.3 V to 16 V

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

ON/OFF input voltage range

−0.3 V to 16 V

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Output voltage range (see Note 1)

−0.3 V to 9 V

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

−0.3 V to 16 V

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Internally limited (short-circuit protected)

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Package thermal impedance,

206

°C/W

. . . . . . . . . . . . . . . . . . . . . . . .

YEQ/YZQ package

TBD

°C/W

. . . . . . . . . . . . . . . . . .

YEU/YZU package

TBD

°C/W

. . . . . . . . . . . . . . . . . . .

Operating virtual junction temperature

150

°C

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

−65

°C to 150°C

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

† Stresses beyond those listed under “absolute maximum ratings” may cause permanent damage to the device. These are stress ratings only, and

functional operation of the device at these or any other conditions beyond those indicated under “recommended operating conditions” is not

implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.

NOTES:

1. If load is returned to a negative power supply in a dual supply system, the output must be diode clamped to GND.

2. The PNP pass transistor has a parasitic diode connected between the input and output. This diode is normally reversed bias

(VIN > VOUT) but will be forward biased if the output voltage exceeds the input voltage by a diode drop (see Application Information

for more details).

3. Maximum power dissipation is a function of TJ(max), θJA, and TA. The maximum allowable power dissipation at any allowable

ambient temperature is PD = (TJ(max) − TA)/θJA. Operating at the absolute maximum TJ of 150°C can affect reliability.

4. The package thermal impedance is calculated in accordance with JESD 51-7.

recommended operating conditions

MIN

MAX

UNIT

VIN

Supply input voltage

2.2

16

V

VON/OFF

ON/OFF input voltage

−0.3

VIN

V

IOUT

Output current

150

mA

TJ

Virtual junction temperature

−40

125

°C