TPS5402EVM

www.ti.com Table of Contents User’s Guide TPS5402 Step-Down Converter Evaluation Module User's Guide Table of Contents 1 Introduction.............................................................................................................................................................................2 2 Background.............................................................................................................................................................................2 3 Board Layout...........................................................................................................................................................................2 4 Bench Test Setup Conditions................................................................................................................................................ 4 4.1 Headers Description and Jumper Placement.....................................................................................................................4 4.2 Jumpers and Switches....................................................................................................................................................... 4 5 Power-Up Procedure.............................................................................................................................................................. 5 6 Schematic and Bill of Materials.............................................................................................................................................6 7 Revision History......................................................................................................................................................................7 List of Figures Figure 3-1. Placement (Top Layer).............................................................................................................................................. 2 Figure 3-2. Board Layout (Top Layer)..........................................................................................................................................3 Figure 3-3. Board Layout (Bottom Layer).................................................................................................................................... 3 Figure 4-1. Headers Description and Jumper Placement............................................................................................................4 Figure 6-1. TPS5402EVM Schematic..........................................................................................................................................6 Trademarks All trademarks are the property of their respective owners. SLVU775A – SEPTEMBER 2012 – REVISED NOVEMBER 2021 TPS5402 Step-Down Converter Evaluation Module User's Guide Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated 1 Introduction www.ti.com 1 Introduction This document presents the information required to operate the TPS5402 as well as the support documentation including schematic and bill of materials. 2 Background The TPS5402 is designed to provide 1.7-A continuous current with an operational range of 4.5 V to 28 V and an external set switching frequency ranging from 50 kHz to 1.1 MHz. As there are many possible options to set the converters, Table 2-1 presents the performance specification summary for the EVM. Table 2-1. Summary of Performance TEST CONDITIONS PERFORMANCE VIN = 3.5 V to 28 V fSW = 300 kHz (25°C ambient) Buck: 3.3 V, up to 1.7 A The evaluation module is designed to provide access to the features of the TPS5402. Some modifications can be made to this module to test performance at different input and output voltages, current and switching frequency. Please contact TI Field Applications Group for advice on these matters. 3 Board Layout Figure 3-1. Placement (Top Layer) 2 TPS5402 Step-Down Converter Evaluation Module User's Guide SLVU775A – SEPTEMBER 2012 – REVISED NOVEMBER 2021 Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated www.ti.com Board Layout Figure 3-2. Board Layout (Top Layer) Figure 3-3. Board Layout (Bottom Layer) SLVU775A – SEPTEMBER 2012 – REVISED NOVEMBER 2021 TPS5402 Step-Down Converter Evaluation Module User's Guide Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated 3 Bench Test Setup Conditions www.ti.com 4 Bench Test Setup Conditions 4.1 Headers Description and Jumper Placement Figure 4-1. Headers Description and Jumper Placement Test points: 1. LX, VIN, VOUT 4.2 Jumpers and Switches Table 4-1. Jumpers and Switches NO. JP4 4 FUNCTION Switching Frequency PLACEMENT Connect JP4 to GND and set the switching frequency to 50 kHz; Leave it open and set switching frequency to 120 kHz; Connect a resistor to set the switching frequency TPS5402 Step-Down Converter Evaluation Module User's Guide COMMENT See datasheet (SLVSBF7) for the resistor value corresponding to specific switching frequency. SLVU775A – SEPTEMBER 2012 – REVISED NOVEMBER 2021 Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated www.ti.com Power-Up Procedure 5 Power-Up Procedure 1. Apply 4.5 V – 28 V to JP1. 2. Apply load to the output connector. SLVU775A – SEPTEMBER 2012 – REVISED NOVEMBER 2021 TPS5402 Step-Down Converter Evaluation Module User's Guide Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated 5 Schematic and Bill of Materials www.ti.com 6 Schematic and Bill of Materials The following pages contain the TPS5402EVM schematic and bill of materials. Figure 6-1. TPS5402EVM Schematic 6 TPS5402 Step-Down Converter Evaluation Module User's Guide SLVU775A – SEPTEMBER 2012 – REVISED NOVEMBER 2021 Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated www.ti.com Revision History Table 6-1. TPS5402EVM Bill of Materials ITEM NO. QTY DESIGNATOR VALUE MANUFACTURER 1 1 C1 0.1 μF Generic Capacitor, 0.1 μF, 35 V, Ceramic, X7R, 0603 2 3 C2, C8B, C8C 10 μF Generic Capacitor, 10 μF, 35 V, Ceramic, X5R, 0805 3 2 C2A, C8A 220 μF Rubycon 4 1 C4 10 nF Generic Capacitor, 10 nF, 35 V, Ceramic, X7R, 0603 C5 470 pF Generic Capacitor, 470 pF, 50 V, Ceramic, X7R, 0603 5 PART NO. 5YXF220MEFC DESCRIPTION 220 μF/35 V 10x12.5 6 1 C6A 2.2 nF Generic Capacitor, 2.2 nF, 50 V, Ceramic, X7R, 0603 7 DNI C6B 100 pF Generic Capacitor, 100 pF, 50 V, Ceramic, X7R, 0603 8 1 D1 Comchip SB240E Comchip SB240E 2-A/40-V Schottky Rectifier 9 1 JP4 Mill-Max Manufacturing Corp. 800-10-064-10-001000 Three Pin Jumper, SIP HEADER 64 POS STRAIGHT PCB 10 1 L1 82 μH Bourns RL622-820K-RC Magnetic-Core Inductor 11 2 R1, R8 0 Generic Resistor, 1%, 1/10W, 0603, SMD 12 1 R3 100 K Generic Resistor, 1%, 1/10W, 0603, SMD 13 1 R6 30 K Generic Resistor, 1%, 1/10W, 0603, SMD 14 1 R5b1 11.8 k Generic Resistor, 1%, 1/10W, 0603, SMD 15 1 R5b2 3.8 k Generic 16 2 TP1, TP2 5001 Generic 5001 Keystone Electronics, Test Point, Black 17 3 TP5, TP6, TP7 5002 Generic 5002 Keystone Electronics, Test Point, White 18 1 U1 Texas Instruments TPS5402 SOIC8 19(1) 1 Sullins Connector Solutions SPC02SYAN SPC02SYAN, CONN JUMPER SHORTING GOLD FLASH (1) Resistor, 1%, 1/10W, 0603, SMD Install item 19 on item 8 to the inner side. 7 Revision History NOTE: Page numbers for previous revisions may differ from page numbers in the current version. Changes from Revision * (September 2012) to Revision A (November 2021) Page • Updated the numbering format for tables, figures, and cross-references throughout the document. ................2 • Updated the user's guide title............................................................................................................................. 2 SLVU775A – SEPTEMBER 2012 – REVISED NOVEMBER 2021 TPS5402 Step-Down Converter Evaluation Module User's Guide Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated 7 IMPORTANT NOTICE AND DISCLAIMER TI PROVIDES TECHNICAL AND RELIABILITY DATA (INCLUDING DATA SHEETS), DESIGN RESOURCES (INCLUDING REFERENCE DESIGNS), APPLICATION OR OTHER DESIGN ADVICE, WEB TOOLS, SAFETY INFORMATION, AND OTHER RESOURCES “AS IS” AND WITH ALL FAULTS, AND DISCLAIMS ALL WARRANTIES, EXPRESS AND IMPLIED, INCLUDING WITHOUT LIMITATION ANY IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT OF THIRD PARTY INTELLECTUAL PROPERTY RIGHTS. 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