TPS61256 datasheet(8/34 Pages) TI1

Part #	TPS61256

Description	3.5-MHz HIGH EFFICIENCY STEP-UP CONVERTER IN CHIP SCALE PACKAGING

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Manufacturer	TI1 [Texas Instruments]

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8 / 34 page

50

55

60

65

70

75

80

85

90

95

100

0.1

1

10

100

1000

I

- Output Current - mA

O

V = 4.5 V

I

V = 3.6 V

I

V = 3.3 V

I

V = 3 V

I

V = 2.7 V

I

I = 2.5 V

V

PFM/PWM Operation

V = 4.5 V

O

50

55

60

65

70

75

80

85

90

95

100

0.1

1

10

100

1000

I

- Output Current - mA

O

V = 2.5 V

I

V = 2.7 V

I

V = 3 V

I

V = 3.3 V

I

V = 3.6 V

I

V = 4.5 V

I

V

= 5 V (TPS61256)

PFM/PWM Operation

O

TPS61253, TPS61254, TPS61256, TPS61258

SLVSAG8B – SEPTEMBER 2011 – REVISED MAY 2012

www.ti.com

TYPICAL CHARACTERISTICS

TABLE OF GRAPHS

FIGURE

vs Output current

3, 4, 5, 7

η

Efficiency

vs Input voltage

6

vs Output current

8, 9, 10, 11, 12, 16

VO

DC output voltage

vs Input voltage

13

IO

Maximum output current

vs Input voltage

14, 15

ΔVO

Peak-to-peak output ripple voltage

vs Output current

17, 18, 19

ICC

Supply current

vs Input voltage

20, 21

DC pre-charge current

vs Differential input-output voltage

22, 23

ILIM

Valley current limit

vs Temperature

24, 25

rDS(on)

MOSFET rDS(on)

vs Temperature

26

PFM operation

27

PWM operation

28

Combined line/load transient response

29

Load transient response

30, 32

AC load transient response

31, 33

Start-up

34, 35

EFFICIENCY

vs

OUTPUT CURRENT

Figure 3.

Figure 4.

8

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Product Folder Link(s): TPS61253 TPS61254 TPS61256 TPS61258

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