TPS57112-Q1 datasheet(8/37 Pages) TI1

No. de pieza	TPS57112-Q1

Descripción Electrónicos	2.95-V to 6-V Input, 2-A Output, 2-MHz, Synchronous Step-Down Switcher With Integrated FETs ( SWIFT??

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Fabricante Electrónico	TI1 [Texas Instruments]

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8 / 37 page

475

480

485

490

495

500

505

510

515

520

525

RT = 400 k

,

Vin = 5 V

W

-50

-25

0

25

50

75

100

125

150

T - Junction Temperature - °C

J

-50

-25

0

25

50

75

100

125

150

T - Junction Temperature - °C

J

High Side Rdson Vin = 3.3 V

Low Side Rdson Vin = 3.3 V

0.005

0.007

0.009

0.011

0.013

0.015

0.017

0.019

0.021

0.023

0.025

High Side Rdson Vin = 5 V

Low Side Rdson Vin = 5 V

4

4.5

5

5.5

6

6.5

7

7.5

8

−50

−25

0

25

50

75

100

125

150

Vin = 2.95 V

Vin = 3.3 V

Vin = 5 V

Vin = 6 V

TJ - Junction Temperature - °C

0.791

0.793

0.795

0.797

0.799

0.801

0.803

0.805

0.807

Vin = 3.3 V

-50

-25

0

25

50

75

100

125

150

T - Junction Temperature - °C

J

200

400

800

1000

1200

1400

1600

1800

2000

80

180

280

380

480

580

680

780

880

980

RT - Resistance - kW

0

25

50

75

100

0

0.1

0.2

0.3

0.4

0.5

0.6

0.7

0.8

Vsense-V

VsenseFalling

VsenseRising

TPS57112-Q1

SLVSAL8 – DECEMBER 2010

www.ti.com

TYPICAL CHARACTERISTICS CURVES

HIGH SIDE AND LOW SIDE RDS(ON) vs TEMPERATURE

FREQUENCY vs TEMPERATURE

Figure 1.

Figure 2.

HIGH SIDE CURRENT LIMIT vs TEMPERATURE

VOLTAGE REFERENCE vs TEMPERATURE

Figure 3.

Figure 4.

SWITCHING FREQUENCY vs

RT RESISTANCE LOW FREQUENCY RANGE

SWITCHING FREQUENCY vs VSENSE

Figure 5.

Figure 6.

8

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