TPS62351YZGR datasheet(5/46 Pages) TI1

Part #	TPS62351YZGR

Description	800-mA / 1000-mA, 3-MHz SYNCHRONOUS STEP-DOWN CONVERTER

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Manufacturer	TI1 [Texas Instruments]

Direct Link	http://www.ti.com

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5 / 46 page

TPS62350, TPS62351

TPS62352, TPS62353

TPS62354, TPS62355, TPS62356

www.ti.com .............................................................................................................................................................. SLVS540E – MAY 2006 – REVISED APRIL 2008

ELECTRICAL CHARACTERISTICS (continued)

over operating free-air temperature range, typical values are at TA = 25°C. Unless otherwise noted, specifications apply with

VI = 3.6 V, EN = VI, VSEL = VI, SYNC = GND, VSEL0[6] bit = 1.

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

VI = 3.6 V, VO = 1.20 V, IO(DC) = 0 mA

–1.5%

1.5%

PWM operation

2.7 V

≤ VI ≤ 5.5 V, 0 mA ≤ IO(DC) ≤ 800 mA

VO = 0.75 V, 1.00 V, 1.20 V, 1.5375 V

–2%

2%

PWM operation

Output voltage

VO

TPS62353

2.7 V

≤ VI ≤ 5.5 V, IO(DC) = 0 mA,

DC accuracy

–1%

4.5%

VO = 1.00 V, L = 1 µH, Light PFM

2.7 V

≤ VI ≤ 5.5 V, 0 mA ≤ IO(DC) ≤ 800 mA

–2%

3%

VO = 1.20 V, L = 1 µH, Fast PFM/PWM

2.7 V

≤ VI ≤ 5.5 V, 0 mA ≤ IO(DC) ≤ 800 mA

–2%

4.5%

VO = 1.00 V, L = 1 µH, Light or Fast PFM/PWM

VI = 3.6 V, VO = 1.30 V, IO(DC) = 0 mA,

–1.5%

1.5%

PWM operation

2.7 V

≤ VI ≤ 5.5 V, 0 mA ≤ IO(DC) ≤ 800 mA

VO = 0.75 V, 1.05 V, 1.30 V, 1.5375 V

–2%

2%

PWM operation

Output voltage

VO

TPS62354

2.7 V

≤ VI ≤ 5.5 V, IO(DC) = 0 mA,

DC accuracy

–1%

4.5%

VO = 1.05 V, L = 1 µH, Light PFM

2.7 V

≤ VI ≤ 5.5 V, 0 mA ≤ IO(DC) ≤ 800 mA

–2%

3%

VO = 1.30 V, L = 1 µH, Fast PFM/PWM

2.7 V

≤ VI ≤ 5.5 V, 0 mA ≤ IO(DC) ≤ 800 mA

–2%

4.5%

VO = 1.05 V, L = 1 µH, Light or Fast PFM/PWM

VI = 3.6 V, VO = 1.15 V, IO(DC) = 0 mA,

–1.5%

1.5%

PWM operation

2.7 V

≤ VI ≤ 5.5 V, 0 mA ≤ IO(DC) ≤ 800 mA

VO = 0.75 V, 0.9 V, 1.15 V, 1.5375 V

–2%

2%

PWM operation

Output voltage

VO

TPS62355

2.7 V

≤ VI ≤ 5.5 V, IO(DC) = 0 mA

DC accuracy

–1%

4.5%

VO = 0.9 V, L = 1 µH, Light PFM

2.7 V

≤ VI ≤ 5.5 V, 0 mA ≤ IO(DC) ≤ 800 mA

–2%

3%

VO = 1.15 V, L = 1 µH, Fast PFM/PWM

2.7 V

≤ VI ≤ 5.5 V, 0 mA ≤ IO(DC) ≤ 800 mA

–2%

4.5%

VO = 0.9 V, L = 1 µH, Light or Fast PFM/PWM

2.7 V

≤ VI ≤ 3.2 V, 0 mA ≤ IO(DC) ≤ 800 mA

3.2 V

≤ VI ≤ 5.5 V, 0 mA ≤ IO(DC) ≤ 1000 mA

(1)

–2%

2%

VO = 1.80 V

PWM operation

2.7 V

≤ VI ≤ 5.5 V, IO(DC) = 0 mA

–1%

4.5%

VO = 1.80 V, L = 1 µH, Light PFM

Output voltage

VO

TPS62356

DC accuracy

2.7 V

≤ VI ≤ 3.2 V, 0 mA ≤ IO(DC) ≤ 800 mA

3.2 V

≤ VI ≤ 5.5 V, 0 mA ≤ IO(DC) ≤ 1000 mA

(1)

–2%

3%

VO = 1.80 V, L = 1 µH, Fast PFM/PWM

2.7 V

≤ VI ≤ 3.2 V, 0 mA ≤ IO(DC) ≤ 800 mA

3.2 V

≤ VI ≤ 5.5 V, 0 mA ≤ IO(DC) ≤ 1000 mA

(1)

–2%

4.5%

VO = 1.80 V, L = 1 µH, Light or Fast PFM/PWM

DC output voltage load regulation

IO(DC) = 0 mA to 800 mA, PWM operation

–0.0003

%/mA

ΔVO

VI = VO + 0.5 V (min 2.7 V) to 5.5 V,

DC output voltage line regulation

0

%/V

IO(DC) = 300 mA

VO = 0.9 V, IO(DC) = 0 mA, L = 1 µH,

33

mVPP

Light PFM operation

VO = 1.05 V, IO(DC) = 1 mA , L = 1 µH,

30

mVPP

Light PFM operation

Power-save mode ripple voltage

VO = 1.10 V, IO(DC) = 1 mA,

12

mVPP

L = 1

µH, Light PFM operation, VSEL0[6] bit = 0

VO = 1.35 V, IO(DC) = 1 mA,

0.025 VO

VPP

L = 1

µH, Fast PFM operation

(1)

In applications where high power dissipation and/or poor package thermal resistance is present, the maximum ambient temperature may

have to be derated. Maximum ambient temperature (TA(max)) is dependent on the maximum operating junction temperature (TJ(max)), the

maximum power dissipation of the device in the application (PD(max)), and the junction-to-ambient thermal resistance of the part/package

in the application (

θ

JA), as given by the following equation: TA(max)= TJ(max)–(θJA X PD(max)).

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Product Folder Link(s): TPS62350, TPS62351 TPS62352, TPS62353 TPS62354, TPS62355, TPS62356

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