LP2998MA datasheet(5/26 Pages) TI

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LP2998

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SNVS521I – DECEMBER 2007 – REVISED APRIL 2013

Electrical Characteristics (continued)

Specifications with standard typeface are for TJ = 25°C and limits in boldface type apply over the full Operating

Temperature Range (TJ = -40°C to +125°C)

(1). Unless otherwise specified, VIN = AVIN = PVIN = 2.5V.

Parameter

Test Conditions

Min

Typ

Max

Units

IQ_SD

Shutdown leakage current

SD = 0V

µA

VIH

Minimum Shutdown High Level

1.9

VIL

Maximum Shutdown Low Level

0.8

VTT leakage current in shutdown

SD = 0V

µA

VTT = 1.25V

ISENSE

VSENSE Input current

TSD

Thermal Shutdown (5)

165

°C

TSD_HYS Thermal Shutdown Hysteresis

°C

(5)

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. Exceeding the maximum allowable power dissipation will cause excessive die

temperature and the regulator will go into thermal shutdown.

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