8 Application and Implementation

Note

Information in the following applications sections is not part of the TI component specification, and TI

does not warrant its accuracy or completeness. TI’s customers are responsible for determining

suitability of components for their purposes. Customers should validate and test their design

implementation to confirm system functionality.

8.1 Application Information

The TPS6291x family of devices are optimized for low noise and low output voltage ripple.

8.2 Typical Applications

Vo

1.2V/3A

Vin

12V

VIN

EN/SYNC

VO

2x10µF

2.2µH

3x22µF

FB

TPS62913

S-CONF

NR/SS

SW

470nF

2x22µF

10nH

R2

4.87k

R1

2.49k

N/P

PSNS

PGND

PG

C1

2.2nF

R4

52.3k

R3

100k

Vo

Figure 8-1. Typical Schematic

Table 8-1 shows the list of components for the application curves in Section 8.2.2.3, unless otherwise noted.

Table 8-1. List of Components

REFERENCE

PART NUMBER

DESCRIPTION

MANUFACTURER

TPS62913

TPS62913

Low Noise and Low Ripple buck

converter

Texas Instruments

XGL4030-222MEC or XGL4030-472MEC

Inductor: 2.2 μH or 4.7 μH

Coilcraft

C2012X7S1E106K125AC

Ceramic capacitors: 2x10µF ±10%

25-V Ceramic Capacitor X7S 0805

TDK

C2012X7S1A226M125AC

Ceramic capacitors: 3x22 µF, 10 V,

±20%, X7S, 0805

TDK

BLE18PS080SN1

Ferrite Bead

MuRata

C2012X7S1A226M125AC

Ceramic capacitor: 2x22 µF, 10 V,

±20%, X7S, 0805

TDK

GRM155R71H222KA01D

Ceramic capacitor: 2200 pF, 50 V,

±10%, X7R, 0402

MuRata

Ceramic capacitor

Standard

R1, R2, R3, R4

Resistor

Standard

8.2.1 Typical Design Recommendations

The external components have to fulfill the needs of the application, but also meet the stability criteria of the

control loop of the device. The device is optimized to work within a range of external components, and can be

optimized for efficiency, output ripple, component count, or lowest 1/f noise.

Typical applications that have input voltages of ≤ 6 V use a 2.2-µH inductor with a 2.2-MHz switching frequency.

Applications that have input voltages > 6 V can be optimized for efficiency using a 2.2-µH inductor with a 1-MHz

TPS62912, TPS62913

SLVSFP4 – AUGUST 2020

www.ti.com

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