LP2980-N datasheet(3/24 Pages) TI

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LP2980-N

www.ti.com

SNOS733M – APRIL 2000 – REVISED JUNE 2013

ABSOLUTE MAXIMUM RATINGS

(1) (2)

Storage Temperature Range

−65°C to +150°C

Operating Junction Temperature

Range

−40°C to +125°C

Lead Temperature

(Soldering, 5 sec.)

260°C

ESD Rating(3)

2 kV

Power Dissipation(4)

Internally Limited

Input Supply Voltage (Survival)

−0.3V to +16V

Input Supply Voltage (Operating)

2.1V to +16V

Shutdown Input Voltage (Survival)

−0.3V to +16V

Output Voltage (Survival)(5)

−0.3V to +9V

IOUT (Survival)

Short Circuit Protected

Input-Output Voltage (Survival)(6)

−0.3V to +16V

(1)

Absolute Maximum Ratings indicate limits beyond which damage to the component may occur. Electrical specifications do not apply

when operating the device outside of its rated operating conditions.

(2)

If Military/Aerospace specified devices are required, please contact the Texas Instruments Sales Office/ Distributors for availability and

specifications.

(3)

The ESD rating of pins 3 and 4 for the SOT-23 package is 1 kV.

(4)

The maximum allowable power dissipation is a function of the maximum junction temperature, TJ(MAX), the junction-to-ambient thermal

resistance,

θJA, and the ambient temperature, TA. The maximum allowable power dissipation at any ambient temperature is calculated

using:

The value of

θJA for the SOT-23 package is 220°C/W. Exceeding the maximum allowable power dissipation will cause excessive die

temperature, and the regulator will go into thermal shutdown.

(5)

If used in a dual-supply system where the regulator load is returned to a negative supply, the LP2980-N output must be diode-clamped

to ground.

(6)

The output PNP structure contains a diode between the VIN and VOUT terminals that is normally reverse-biased. Reversing the polarity

from VIN to VOUT will turn on this diode (See REVERSE CURRENT PATH).

ELECTRICAL CHARACTERISTICS

Limits in standard typeface are for TJ = 25°C, and limits in boldface type apply over the full operating temperature range.

Unless otherwise specified: VIN = VO(NOM) + 1V, IL = 1 mA, COUT = 1 μF, VON/OFF = 2V.

Symbol

Parameter

Conditions

Typ

LP2980AI-XX(1)

LP2980I-XX(1)

Units

Min

Max

Min

Max

IL = 1 mA

−0.50

0.50

−1.0

1.0

ΔVO

Output Voltage Tolerance

−0.75

0.75

−1.5

1.5

%VNOM

1 mA < IL < 50 mA

−2.5

2.5

−3.5

3.5

Output Voltage Line

VO(NOM) + 1V

≤ VIN ≤ 16V

0.014

0.007

%/V

Regulation

0.032

IL = 0

IL = 1 mA

VIN–VO

Dropout Voltage(2)

IL = 10 mA

IL = 50 mA

150

120

225

(1)

Limits are 100% production tested at 25°C. Limits over the operating temperature range are ensured through correlation using Statistical

Quality Control (SQC) methods. The limits are used to calculate Average Outgoing Quality Level (AOQL).

(2)

Dropout voltage is defined as the input to output differential at which the output voltage drops 100 mV below the value measured with a

1V differential.

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