4.7 F

10 uF

L

VIN

EN

VOUT

BP

GND

L

1 H

V

IN

3.2 V .. 5.25 V

TPS61259

IN

OC1

EN1

OC2

OUT1

EN2

GND

TPS2052B

Data

5V, 500mA

USB Port #1

OUT2

5V USB Power

5V USB Power

Data

5V, 500mA

USB Port #2

Requirement for USB host applications.

Downstream facing ports should be bypassed with 120µF min. per hub.

(1)

V

IO

100nF

100nF

150µF

(1)(2)

100nF

150µF

(1)(2)

IN

OC

ON

OUT

GND

TPS22945

1 F

V

IO

Data

5V, 100mA

HDMI Port

100nF

Bypass capacitor should be tantalum type (>10V rated voltage).

(2)

5V HDMI Power

Enable DC/DC

Enable USB, HDMI

≥ 1000µs

≥ 0µs

Enable DC/DC

Enable USB1

Enable USB2

Enable HDMI

4.7 F

10 uF

SW

VIN

EN

VOUT

BP

GND

L

1 H

V

IN

3.3 V .. 4.8 V

5.0 V, up to 750mA

TPS61256

Audio Input

Audio Input

EN

Class-D APA

EN DC/DC

EN APA

4.7 F

10 uF

SW

VIN

EN

VOUT

BP

GND

L

1 H

V

IN

2.65 V .. 4.35 V

4.5 V / V

IN

TPS61254

Audio Input

Audio Input

EN IHF

CLASS-D APA

EN DC/DC

EN HP

EN HP

CLASS-AB APA

AUDIO AMPLIFIER (HANDS-FREE, HEADPHONE)

Audio Input

Audio Input

TPS61253, TPS61254, TPS61256, TPS61258, TPS61259

SLVSAG8E – SEPTEMBER 2011 – REVISED MARCH 2015

www.ti.com

System Examples (continued)

Figure 40. Combined Audio Amplifier Power Supply

Figure 41. "Boosted" Audio Power Supply

Figure 42. Single Cell Li-Ion Power Solution for Tablet PCs Featuring x2 USB Host Ports, HDMI I/F

24

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