LP2996AMRESLASHNOPB datasheet(6/29 Pages) TI1

6 / 29 page

LP2996A

SNOSCY7 – JUNE 2014

www.ti.com

Electrical Characteristics (continued)

Specifications are for TJ = 25°C and apply over the full Operating Temperature Range (TJ = 0°C to +125°C)

(1). Unless

otherwise specified, AVIN = PVIN = 2.5V, VDDQ = 2.5V

(2).

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

VTT Output Voltage (DDR III)

(3)

IOUT = 0A, AVIN = 2.5 V

PVIN = VDDQ = 1.35V

0.656

0.677

0.698

PVIN = VDDQ = 1.5 V

0.731

0.752

0.773

PVIN = VDDQ = 1.6 V

0.781

0.802

0.823

IOUT = +0.2A, AVIN = 2.5V

0.667

0.688

0.710

PVIN = VDDQ = 1.35V

IOUT = -0.2A, AVIN = 2.5V

0.641

0.673

0.694

PVIN = VDDQ = 1.35V

IOUT = +0.4 A, AVIN = 2.5 V

0.740

0.763

0.786

PVIN = VDDQ = 1.5 V

IOUT = –0.4 A, AVIN = 2.5 V

0.731

0.752

0.773

PVIN = VDDQ = 1.5 V

IOUT = +0.5A, AVIN = 2.5 V

0.790

0.813

0.836

PVIN = VDDQ = 1.6 V

IOUT = -0.5 A, AVIN = 2.5 V

0.781

0.802

0.823

PVIN = VDDQ = 1.6 V

VOSVtt

IOUT = 0 A

–30

VTT Output Voltage Offset (VREF –

IOUT = –1.5 A

–30

VTT) for DDR I

(3)

IOUT = 1.5 A

–30

VTT Output Voltage Offset (VREF –

IOUT = 0 A

–30

VTT) for DDR II

(3)

IOUT = –0.5 A

–30

IOUT = 0.5 A

–30

VTT Output Voltage Offset (VREF –

IOUT = 0 A

–30

VTT) for DDR III

(3)

IOUT = ±0.2 A

–30

IOUT = ±0.4 A

–30

IOUT = ±0.5 A

–30

Quiescent Current (4)

IOUT = 0 A

320

500

µA

ZVDDQ

VDDQ Input Impedance

100

Ω

ISD

Quiescent current in shutdown (4)

SD = 0 V

115

150

µA

IQ_SD

Shutdown leakage current

SD = 0 V

VIH

Minimum Shutdown High Level

1.9

VIL

Maximum Shutdown Low Level

0.8

SD = 0 V

VTT leakage current in shutdown

µA

VTT = 1.25 V

ISENSE

VSENSE Input current

TSD

Thermal Shutdown (5)

165

°C

TSD_HYS

Thermal Shutdown Hysteresis

(4)

Quiescent current defined as the current flow into AVIN.

(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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