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TLV62080, TLV62084, TLV62084A

www.ti.com

SLVSAK9H – OCTOBER 2011 – REVISED JANUARY 2017

Product Folder Links: TLV62080 TLV62084 TLV62084A

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Copyright © 2011–2017, Texas Instruments Incorporated

(1)

See Third-party Products Disclaimer

9.2.2 Detailed Design Procedure

9.2.2.1 Custom Design With WEBENCH® Tools

Click here to create a custom design using the TLV62080 device with the WEBENCH® Power Designer.

1. Start by entering the input voltage (VIN), output voltage (VOUT), and output current (IOUT) requirements.

2. Optimize the design for key parameters such as efficiency, footprint, and cost using the optimizer dial.

3. Compare the generated design with other possible solutions from Texas Instruments.

The WEBENCH Power Designer provides a customized schematic along with a list of materials with real-time

pricing and component availability.

In most cases, these actions are available:

•

Run electrical simulations to see important waveforms and circuit performance

•

Run thermal simulations to understand board thermal performance

•

Export customized schematic and layout into popular CAD formats

•

Print PDF reports for the design, and share the design with colleagues

Get more information about WEBENCH tools at www.ti.com/WEBENCH.

Table 5. List of Components

REFERENCE

DESCRIPTION

MANUFACTURER(1)

C1

10 μF, Ceramic Capacitor, 6.3 V, X5R, size 0603

Std

C2

22 μF, Ceramic Capacitor, 6.3 V, X5R, size 0805,

GRM21BR60J226ME39L

Murata

C3

47 μF, Tantalum Capacitor, 8 V, 35 mΩ, size 3528,

T520B476M008ATE035

Kemet

L1

1 μH, Power Inductor, 2.2 A, size 3 mm × 3 mm × 1.2 mm,

XFL3012-102MEB

Coilcraft

R1

65.3 kΩ, Chip Resistor, 1/16 W, 1%, size 0603

Std

R2

39.2 kΩ, Chip Resistor, 1/16 W, 1%, size 0603

Std

R3

178 kΩ, Chip Resistor, 1/16 W, 1%, size 0603

Std

9.2.2.2 Output Filter Design

The inductor and the output capacitor together provide a low pass frequency filter. To simplify this process

Table 6 outlines possible inductor and capacitor value combinations for the most application.

(1)

Capacitance tolerance and bias voltage de-rating is anticipated. The effective capacitance can vary by

+20% and –50%. Inductor tolerance and current de-rating is anticipated. The effective inductance can

vary by +20% and –30%.

(2)

Plus signs (+) indicates recommended filter combinations.

(3)

Filter combination in typical application.

Table 6. Matrix of Output Capacitor and Inductor Combinations

L [µH](1)

COUT [µF]

(1)

10

22

47

100

150

0.47

1

+

+(2)(3)

+

+

2.2

+

+

+

+

4.7