TPS51116-EP datasheet(4/38 Pages) TI1

Part #	TPS51116-EP

Description	COMPLETE DDR, DDR2, DDR3, AND LPDDR3 MEMORY POWER SOLUTION SYNCHRONOUS BUCK CONTROLLER, 1-A LDO, BUFFERED REFERENCE

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Manufacturer	TI1 [Texas Instruments]

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TPS51116-EP

SLUSB52A – OCTOBER 2012 – REVISED NOVEMBER 2012

www.ti.com

ELECTRICAL CHARACTERISTICS (continued)

TJ = −55°C to 125°C, TJ = TA, VV5IN = 5 V, VLDOIN is connected to VDDQ output (unless otherwise noted)

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

VTTREF OUTPUT

VVTTREF

Output voltage, VTTREF

VVDDQSNS/2

V

-10 mA < IVTTREF < 10 mA, VVDDQSNS = 2.5 V,

-20

20

Tolerance to VVDDQSNS/2

-10 mA < IVTTREF < 10 mA, VVDDQSNS = 1.8 V,

-19

19

Tolerance to VVDDQSNS/2

VVTTREFTOL

Output voltage tolerance

mV

-10 mA < IVTTREF < 10 mA, VVDDQSNS = 1.5 V,

-16

16

Tolerance to VVDDQSNS/2

-10 mA < IVTTREF < 10 mA, VVDDQSNS = 1.2 V,

–13

13

Tolerance to VVDDQSNS/2

VVTTREFSRC

Source current

VVDDQSNS = 2.5 V, VVTTREF = 0 V

-19

-40

-83.5

mA

VVTTREFSNK

Sink current

VVDDQSNS = 2.5 V, VVTTREF = 2.5 V

19

40

83.5

VDDQ OUTPUT

TA = 25°C, VVDDQSET = 0 V, No load

2.465

2.500

2.535

-55°C

≤ TA ≤ 125°C, VVDDQSET = 0 V, No load

2.43

2.50

2.56

VVDDQ

Output voltage, VDDQ

TA = 25°C, VVDDQSET = 5 V, No load

1.776

1.800

1.830

V

-55°C

≤ TA ≤ 125°C, VVDDQSET = 5 V, No load

1.762

1.800

1.838

-55°C

≤ TA ≤ 125°C, Adjustable mode, No load

0.75

3.0

TA = 25°C, Adjustable mode

742.5

750

760.5

VVDDQSET

VDDQSET regulation voltage

mV

-55°C

≤ TA ≤ 125°C, Adjustable mode

737

750

763

VVDDQSET = 0 V

215

k

Ω

RVDDQSNS

Input impedance, VDDQSNS

VVDDQSET = 5 V

180

Adjustable mode

460

VVDDQSET = 0.78 V, COMP = Open

-0.04

IVDDQSET

Input current, VDDQSET

μA

VVDDQSET = 0.78 V, COMP = 5 V

-0.06

VS3 = VS5 = 0 V, VVDDQSNS = 0.5 V,

IVDDQDisch

Discharge current, VDDQ

10

40

mA

VMODE = 0 V

VS3 = VS5 = 0 V, VVDDQSNS = 0.5 V,

IVLDOINDisch

Discharge current, VLDOIN

700

mA

VMODE = 0.5 V

VTT OUTPUT

VS3 = VS5 = 5 V, VVLDOIN = VVDDQSNS = 2.5 V

1.25

VVTTSNS

Output voltage, VTT

VS3 = VS5 = 5 V, VVLDOIN = VVDDQSNS = 1.8 V

0.9

V

VS3 = VS5 = 5 V, VVLDOIN = VVDDQSNS = 1.5 V

0.75

VVDDQSNS = VVLDOIN = 2.5 V, VS3 = VS5 = 5 V,

-21

21

IVTT = 0 A

VTT output voltage tolerance

VVTTTOL25

mV

to VTTREF

VVDDQSNS = VVLDOIN = 2.5 V, VS3 = VS5 = 5 V,

-31

31

|IVTT| < 1 A

VVDDQSNS = VVLDOIN = 1.8 V, VS3 = VS5 = 5 V,

-21

21

IVTT = 0 A

VTT output voltage tolerance

VVTTTOL18

mV

to VTTREF

VVDDQSNS = VVLDOIN = 1.8 V, VS3 = VS5 = 5 V,

-31

31

|IVTT| < 1 A

VVDDQSNS = VVLDOIN = 1.5 V, VS3 = VS5 = 5 V,

-21

21

IVTT = 0 A

VTT output voltage tolerance

VVTTTOL15

mV

to VTTREF

VVDDQSNS = VVLDOIN = 1.5 V, VS3 = VS5 = 5 V,

-31

31

|IVTT| < 1 A

VVDDQSNS = VVLDOIN = 1.2 V, VS3 = VS5 = 5 V,

-21

21

IVTT = 0 A

VTT output voltage tolerance

VVTTTOL12

mV

to VTTREF

VVDDQSNS = VVLDOIN = 1.2 V, VS3 = VS5 = 5 V,

-31

31

|IVTT| < 1 A

4

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