LP2985 datasheet(4/29 Pages) TI

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LP2985

SLVS522O – JULY 2004 – REVISED JANUARY 2015

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6 Specifications

6.1

Absolute Maximum Ratings

over virtual junction temperature range (unless otherwise noted)

(1)

MIN

MAX

UNIT

VIN

Continuous input voltage range(2)

–0.3

VON/ OFF

ON/OFF input voltage range

–0.3

Output voltage range(3)

–0.3

Internally limited

Output current(4)

—

(short-circuit protected)

θJA

Package thermal impedance(4) (5)

206

°C/W

Operating virtual junction temperature

150

°C

Tstg

Storage temperature range

–65

150

°C

(1)

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.

(2)

The PNP pass transistor has a parasitic diode connected between the input and output. This diode normally is reverse biased

(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)

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

(4)

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.

(5)

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

6.2 ESD Ratings

VALUE

UNIT

Human body model (HBM), per ANSI/ESDA/JEDEC JS-001, all pins(1)

2000

V(ESD)

Electrostatic discharge

Charged device model (CDM), per JEDEC specification JESD22-C101,

1000

all pins(2)

(1)

JEDEC document JEP155 states that 500-V HBM allows safe manufacturing with a standard ESD control process.

(2)

JEDEC document JEP157 states that 250-V CDM allows safe manufacturing with a standard ESD control process.

6.3

Recommended Operating Conditions

MIN

MAX

UNIT

VIN

Supply input voltage

2.2(1)

VON/ OFF

ON/OFF input voltage

VIN

IOUT

Output current

150

Virtual junction temperature

–40

125

°C

(1)

Recommended minimum VIN is the greater of 2.5 V or VOUT(max) + rated dropout voltage (max) for operating IL.

6.4 Thermal Information

LP2985

THERMAL METRIC(1)

DBV

UNIT

5 PINS

RθJA

Junction-to-ambient thermal resistance

206

°C/W

(1)

For more information about traditional and new thermal metrics, see the IC Package Thermal Metrics application report, SPRA953.

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