TPS65253RHDR datasheet(10/24 Pages) TI1

Part #	TPS65253RHDR

Description	4.5-V TO 16-V INPUT, HIGH CURRENT, SYNCHRONOUS STEP DOWN DUAL BUCK

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Manufacturer	TI1 [Texas Instruments]

Direct Link	http://www.ti.com

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0.01

0.02

0.03

0.04

0

1

2

3

4

Output Current (A)

1.2V

3.3V

5V

0.01

0.02

0.03

0.04

0

1

2

3

Output Current (A)

1.2V

3.3V

5V

1.175

1.2

1.225

0

1

2

3

4

Output Current (A)

Buck1,-40°C

Buck1,25°C

Buck1,85°C

Buck2,-40°C

Buck2,25°C

Buck2,85°C

1.76

1.78

1.8

1.82

0

1

2

3

4

Output Current (A)

Buck1,-40°C

Buck1,25 C

°

Buck1,85 C

°

Buck2,-40 C

°

Buck2,25 C

°

Buck2,85 C

°

3.3

3.35

3.4

0

1

2

3

4

Output Current (A)

Buck1,-40°C

Buck1,25 C

°

Buck1,85 C

°

Buck2,-40 C

°

Buck2,25 C

°

Buck2,85 C

°

4.9

4.95

5

5.05

5.1

0

1

2

3

4

Output Current (A)

Buck1,-40°C

Buck1,25 C

°

Buck1,85 C

°

Buck2,-40 C

°

Buck2,25 C

°

Buck2,85 C

°

TPS65253

SLVSAW8

– JUNE 2011

www.ti.com

TYPICAL CHARACTERISTICS (continued)

VIN = 12 V, fSW = 500 kHz, LO = 2.2 µH, DCR = 15 mΩ, CO = 44 µF (unless otherwise specified)

Buck 1 Output Ripple

Buck 2 Output Ripple

vs

VOUT

Figure 7.

Figure 8.

Output Voltage (1.2 V)

Output Voltage (1.8 V)

vs

TA

Figure 9.

Figure 10.

Output Voltage (3.3 V)

Output Voltage (5 V)

vs

TA

Figure 11.

Figure 12.

10

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