TLVM13640 datasheet(24/43 Pages) TI2

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8.2.1.1 Design Requirements

For this design example, use the parameters listed in Table 8-1 as the input parameters and follow the design

procedures in Section 8.2.1.2.

Table 8-1. Design Example Parameters

DESIGN PARAMETER

VALUE

Input voltage

24 V

Output voltage

5 V

Output current

0 A to 3 A

Switching Frequency

1 MHz

Table 8-2 gives the selected buck module power-stage components with availability from multiple vendors. This

design uses an all-ceramic output capacitor implementation.

Table 8-2. List of Materials for Application Circuit 1

REFERENCE

DESIGNATOR

QTY

SPECIFICATION

MANUFACTURER(1)

PART NUMBER

CIN1, CIN2

4.7 µF, 50 V, X7R, 1210, ceramic

Taiyo Yuden

UMK325B7475KN-TR

TDK

CGA6P3X7R1H475K250AB

4.7 µF, 100 V, X7S, 1206, ceramic

Murata

GRM31CC72A475KE11L

COUT1, COUT2

47 µF, 10 V, X7R, 1210, ceramic

Murata

GRM32ER71A476ME15L

AVX

1210ZC476MAT2A

CVCC

1 µF, 16 V, X7R, 0603, ceramic

Murata

GCM188R71C105KA64J

1 µF, 16 V, X5R, 0402, ceramic

Taiyo Yuden

EMK105BJ105KVHF

TLVM13630 36-V, 3-A synchronous buck module

Texas Instruments

TLVM13630RDLR

(1)

See the Third-Party Products Disclaimer.

More generally, the TLVM13630 module is designed to operate with a wide range of external components

and system parameters. However, the integrated loop compensation is optimized for a certain range of output

capacitance.

8.2.1.2 Detailed Design Procedure

8.2.1.2.1 Custom Design With WEBENCH® Tools

Click here to create a custom design using the TPSM63603 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.

8.2.1.2.2 Output Voltage Setpoint

The output voltage of the TLVM13630 device is externally adjustable using a resistor divider. The recommended

value of RFBB is 10 kΩ. The value for RFBB can be selected from Table 7-1 or calculated using Equation 8:

TLVM13630

SLVSFT6B – MAY 2021 – REVISED JANUARY 2022

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