TPS65270EVM

www.ti.com Table of Contents User’s Guide TPS65270 Buck Converter Evaluation Module User's Guide Table of Contents 1 Introduction.............................................................................................................................................................................2 2 Background.............................................................................................................................................................................3 3 Schematic................................................................................................................................................................................4 4 Board Layout...........................................................................................................................................................................5 5 Bench Test Setup Conditions................................................................................................................................................ 6 5.1 Headers Description and Jumper Placement.....................................................................................................................6 5.2 Jumpers..............................................................................................................................................................................7 6 Power-Up Procedure.............................................................................................................................................................. 8 7 Bill of Materials....................................................................................................................................................................... 9 8 Revision History......................................................................................................................................................................9 Trademarks All trademarks are the property of their respective owners. SLVU474C – AUGUST 2011 – REVISED MAY 2021 Submit Document Feedback TPS65270 Buck Converter Evaluation Module User's Guide Copyright © 2021 Texas Instruments Incorporated 1 Introduction www.ti.com 1 Introduction This document presents the information required to power the TPS65270 PMIC as well as the support documentation including schematic and bill of materials. 2 TPS65270 Buck Converter Evaluation Module User's Guide Copyright © 2021 Texas Instruments Incorporated SLVU474C – AUGUST 2011 – REVISED MAY 2021 Submit Document Feedback www.ti.com Background 2 Background The TPS65270 PMIC is designed to provide 2-A and 3-A continuous currents with an operational range of 4.5 V to 16 V and an externally set switching frequency ranging from 300 kHz to 1.4 MHz. When the PMIC is not fully loaded, Buck1 can be loaded to 2.5 A and Buck2 to 3.5 A. As there are many possible options to set the converters, Table 2-1 presents the performance specification summary for the EVM. Table 2-1. Input Voltage and Output Current Summary EVM TEST CONDITIONS TPS65270EVM VIN = 4.5 V to 16 V fsw = 620 kHz OUTPUT CURRENT RANGE Buck1, 1.8 V, up to 2 A Buck2, 1.2 V, up to 3 A (25°C ambient) This evaluation module is designed to provide access to the features of the TPS65270. Some modifications can be made to this module to test performance at different input and output voltages, current and frequency operation. Please contact TI Field Applications Group for advice on these matters. SLVU474C – AUGUST 2011 – REVISED MAY 2021 Submit Document Feedback TPS65270 Buck Converter Evaluation Module User's Guide Copyright © 2021 Texas Instruments Incorporated 3 www.ti.com Schematic 3 Schematic Figure 3-1. TPS65270 Schematic 4 TPS65270 Buck Converter Evaluation Module User's Guide Copyright © 2021 Texas Instruments Incorporated SLVU474C – AUGUST 2011 – REVISED MAY 2021 Submit Document Feedback www.ti.com Board Layout 4 Board Layout Figure 4-2. Board Layout (Top Layer) Figure 4-1. Placement (Top Layer) Figure 4-3. Board Layout (Bottom Layer) SLVU474C – AUGUST 2011 – REVISED MAY 2021 Submit Document Feedback TPS65270 Buck Converter Evaluation Module User's Guide Copyright © 2021 Texas Instruments Incorporated 5 Bench Test Setup Conditions www.ti.com 5 Bench Test Setup Conditions 5.1 Headers Description and Jumper Placement A JP1/ EN1 VOUT1 VIN JP3/LOW_P GND 12V VOUT2 JP2/EN2 B Figure 5-1. Headers Description and Jumper Placement Test points: A: LX of VOUT1 B: LX of VOUT2 VOUT1, VOUT2, VCC, EN1, EN2, LOW_P 6 TPS65270 Buck Converter Evaluation Module User's Guide Copyright © 2021 Texas Instruments Incorporated SLVU474C – AUGUST 2011 – REVISED MAY 2021 Submit Document Feedback www.ti.com Bench Test Setup Conditions 5.2 Jumpers Table 5-1. Jumpers JUMPER NO. FUNCTION PLACEMENT JP1 BUCK1 enable (EN1) Connect EN1 to GND to disable VOUT1, connect EN1 to VIN to enable VOUT1; Leave open to enable VOUT1 JP2 BUCK2 enable (EN2) Connect EN2 to GND to disable VOUT2, connect EN2 to VIN to enable VOUT2; Leave open to enable VOUT2 JP3 COMMENT Connect LOW_P to GND to enter forced PWM Low Power Mode (LOW_P) mode; Connect LOW_P to VCC to enter automatic PSM/PWM mode SLVU474C – AUGUST 2011 – REVISED MAY 2021 Submit Document Feedback Cannot leave open TPS65270 Buck Converter Evaluation Module User's Guide Copyright © 2021 Texas Instruments Incorporated 7 Power-Up Procedure www.ti.com 6 Power-Up Procedure 1. Apply 4.5 V - 16 V to J3. 2. Toggle JP1 or JP2 to enable VOUT1 and VOUT2 respectively. 3. Apply loads to the output connectors. 8 TPS65270 Buck Converter Evaluation Module User's Guide Copyright © 2021 Texas Instruments Incorporated SLVU474C – AUGUST 2011 – REVISED MAY 2021 Submit Document Feedback Bill of Materials www.ti.com 7 Bill of Materials Table 7-1. Bill of Materials ITEM (1) (2) (3) (4) QUANTITY DESIGNATOR VALUE FOOTPRINT MANUFACTURER DESCRIPTION 1 2 C1, C7 4.7nF 603 Generic CAP 4700PF 50V CERAMIC X7R 0603 2 2 C2, C6 10nF 603 Generic CAP 10000PF 50V CERM X7R 0603 3 2 C3, C5 2.2nF 603 Generic CAP 2200PF 50V CERAMIC X7R 0603 4(1) 2 C3A, C5A 100pF 603 Generic CAP100PF 50V CERAMIC X7R 0603 5 2 C9, C13 10uF 1210 Generic CAP 10UF 35V CERAMIC X5R 1210 6 1 C4 10uF 603 Generic CAP CER 10UF 10V X5R 20% 0603 7 2 C8, C12 47nF 603 Generic CAP 47000PF 50V CERAMIC X7R 0603 8 2 C10, C14 22uF 1210 Generic CAP 22UF 16V CERAMIC X5R 1210 9(1) 2 C11, C15 82pF 603 Generic CAP 82PF 50V CERAMIC X7R 0603 10 3 J1, J2, J3 ED555/2DS TB_2X3.5MM Onshore technology Inc Terminal Block, 2-pin, 6-A, 3.5mm 11(2) 3 JP1, JP2, JP3 NA JMP0.3 Mil Max/Generic SIP HEADER 64 POS STRAIGHT PCB (800-10-064-10-001000 ) 12 2 L1, L2 4.7uH IND_744311470 Wurth Electronics Inc Magnetic-Core Inductor 13 2 R1, R2 10K 603 Generic RES 10.0K OHM 1/10W 1% 0603 SMD 14 2 R4, R5 0 603 Generic RES 0 OHM 1/10W 1% 0603 SMD 15 2 R4A, R5A 40.2K 603 Generic RES 40.2K OHM 1/10W 1% 0603 SMD 16 1 R4B 32.4K 603 Generic RES 32.4K OHM 1/10W 1% 0603 SMD 17 1 R5B 80.6K 603 Generic RES 80.6K OHM 1/10W 1% 0603 SMD 18 2 R6, R7 200K 603 Generic RES 200K OHM 1/10W 1% 0603 SMD 19 1 R8 383K 603 Generic RES 3830K OHM 1/10W 1% 0603 SMD 20 2 R13, R24 47 603 Generic RES 47 OHM 1/10W 1% 0603 SMD 21 3 TP1, TP2, TP3 5001 TH-40 Keystone Electronics Test Point, Black, Thru Hole Color Keyed 22 5 TP5, TP6, TP7, TP8, TP9 5002 TH-40 Keystone Electronics Test Point, White, Thru Hole Color Keyed 23 1 U1 NA RGE24 Texas Instruments 'TPS65270RGE24 24(3) 4 NA NA NA 3M SJ-5303 (CLEAR), BUMPON HEMISPHERE .44X.20 CLEAR 25(4) 3 NA NA NA Sullins Connector Solutions SPC02SYAN, CONN JUMPER SHORTING GOLD FLASH Optional Split into three pins Install item 24 on bottom at corners. Install item 25 on item 11 no order - be consistent 8 Revision History NOTE: Page numbers for previous revisions may differ from page numbers in the current version. SLVU474C – AUGUST 2011 – REVISED MAY 2021 Submit Document Feedback TPS65270 Buck Converter Evaluation Module User's Guide Copyright © 2021 Texas Instruments Incorporated 9 Revision History www.ti.com Changes from Revision B (December 2011) to Revision C (May 2021) Page • Updated the numbering format for tables, figures, and cross-references throughout the document. ................2 • Updated user's guide title .................................................................................................................................. 2 10 TPS65270 Buck Converter Evaluation Module User's Guide Copyright © 2021 Texas Instruments Incorporated SLVU474C – AUGUST 2011 – REVISED MAY 2021 Submit Document Feedback 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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