Table 9-1. Design Parameters

Design Parameter

Value

Input voltage range

9 V to 36 V

Input voltage UVLO turn on, off

6 V, 4.3 V

Output voltage

5 V

Maximum output current

4 A

Switching frequency

1 MHz

Output voltage regulation

±1%

Module shutdown current

< 1 µA

Table 9-2 gives the selected buck module power-stage components with availability from multiple vendors. This

design uses an all-ceramic output capacitor implementation.

Table 9-2. List of Materials for Application Circuit 1

Reference

Designator

Qty

Specification

Manufacturer(1)

Part Number

2

10 µF, 50 V, X7R, 1210, ceramic

Taiyo Yuden

UMJ325KB7106KMHT

TDK

CNA6P1X7R1H106K

10 µF, 50 V, X7S, 1210, ceramic

Murata

GCM32EC71H106KA03

TDK

CGA6P3X7S1H106M

2

47 µF, 6.3 V, X7R, 1210, ceramic

Murata

GRM32ER70J476ME20K

AVX

12106C476MAT2A

47 µF, 10 V, X7R, 1210, ceramic

Murata

GRM32ER71A476ME15L

AVX

1210ZC476MAT2A

100 µF, 6.3 V, X7S, 1210, ceramic

Murata

GRM32EC70J107ME15L

1

TLVM13640 36-V, 4-A synchronous buck module

Texas Instruments

TLVM13640RDLR

(1)

See the Third-Party Products Disclaimer.

More generally, the TLVM13640 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.

9.2.1.2 Detailed Design Procedure

9.2.1.2.1 Custom Design With WEBENCH® Tools

Click here to create a custom design using the TLVM13640 module with WEBENCH® Power Designer.

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.

www.ti.com

TLVM13640

SLVSGJ7 – APRIL 2022

Copyright © 2022 Texas Instruments Incorporated

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Product Folder Links: TLVM13640