TPS562201EVM-715

www.ti.com Table of Contents User’s Guide TPS562201 Step-Down Converter Evaluation Module User's Guide ABSTRACT This user's guide contains information for the TPS562201 as well as support documentation for the TPS562201EVM-715 evaluation module. Included are the performance specifications, schematic, and the bill of materials of the TPS562201EVM-715. Table of Contents 1 Introduction.............................................................................................................................................................................3 2 Performance Specification Summary................................................................................................................................... 4 3 Modifications...........................................................................................................................................................................5 3.1 Output Voltage Setpoint..................................................................................................................................................... 5 4 Test Setup and Results.......................................................................................................................................................... 6 4.1 Input/Output Connections.................................................................................................................................................. 6 4.2 Start-Up Procedure............................................................................................................................................................ 6 4.3 Efficiency............................................................................................................................................................................7 4.4 Load Regulation................................................................................................................................................................. 8 4.5 Line Regulation.................................................................................................................................................................. 8 4.6 Load Transient Response.................................................................................................................................................. 9 4.7 Output Voltage Ripple........................................................................................................................................................ 9 4.8 Input Voltage Ripple......................................................................................................................................................... 10 4.9 Start-Up............................................................................................................................................................................ 11 4.10 Shut-Down......................................................................................................................................................................11 5 Board Layout.........................................................................................................................................................................12 5.1 Layout.............................................................................................................................................................................. 12 6 Schematic, Bill of Materials, and Reference...................................................................................................................... 13 6.1 Schematic........................................................................................................................................................................ 13 6.2 Bill of Materials.................................................................................................................................................................14 6.3 Reference.........................................................................................................................................................................15 7 Revision History................................................................................................................................................................... 15 List of Figures Figure 4-1. Efficiency................................................................................................................................................................... 7 Figure 4-2. Light-Load Efficiency................................................................................................................................................. 7 Figure 4-3. Load Regulation........................................................................................................................................................ 8 Figure 4-4. Line Regulation......................................................................................................................................................... 8 Figure 4-5. Load Transient Response, 25% to 75% Load Step...................................................................................................9 Figure 4-6. Output Voltage Ripple, IOUT = 2 A............................................................................................................................. 9 Figure 4-7. Output Voltage Ripple, IOUT = 250 mA...................................................................................................................... 9 Figure 4-8. Output Voltage Ripple, IOUT = 10 mA...................................................................................................................... 10 Figure 4-9. Input Voltage Ripple, IOUT = 2 A.............................................................................................................................. 10 Figure 4-10. Start-Up Relative to Input Voltage......................................................................................................................... 11 Figure 4-11. Start-Up Relative to EN..........................................................................................................................................11 Figure 4-12. Shut-Down Relative to Input Voltage..................................................................................................................... 11 Figure 4-13. Shut-Down Relative to EN..................................................................................................................................... 11 Figure 5-1. Top Assembly.......................................................................................................................................................... 12 Figure 5-2. Top Layer.................................................................................................................................................................12 Figure 5-3. Bottom Layer........................................................................................................................................................... 12 Figure 6-1. TPS562201EVM-715 Schematic Diagram.............................................................................................................. 13 SLVUAL5A – DECEMBER 2015 – REVISED AUGUST 2021 TPS562201 Step-Down Converter Evaluation Module User's Guide Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated 1 Trademarks www.ti.com List of Tables Table 1-1. Input Voltage and Output Current Summary...............................................................................................................3 Table 2-1. TPS562201EVM-715Performance Specifications Summary......................................................................................4 Table 3-1. Output Voltages.......................................................................................................................................................... 5 Table 4-1. Connection and Test Points........................................................................................................................................ 6 Table 6-1. Bill of Materials..........................................................................................................................................................14 Trademarks D-CAP2™ is a trademark of Texas Instruments. All trademarks are the property of their respective owners. 2 TPS562201 Step-Down Converter Evaluation Module User's Guide SLVUAL5A – DECEMBER 2015 – REVISED AUGUST 2021 Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated www.ti.com Introduction 1 Introduction The TPS562201 is a single, adaptive on-time, D-CAP2™ mode, synchronous buck converter requiring a very low external component count. The D-CAP2 control circuit is optimized for low-ESR output capacitors such as POSCAP, SP-CAP, or ceramic types and features fast transient response with no external compensation. The switching frequency is internally set at a nominal 580 kHz and enters plus skip mode in light load conditions. The high-side and low-side switching MOSFETs are incorporated inside the TPS562201 package along with the gate-drive circuitry. The low drain-to-source on resistance of the MOSFETs allows the TPS562201 to achieve high efficiencies and helps keep the junction temperature low at high output currents. The TPS562201 dc/dc synchronous converter is designed to provide up to a 2-A output from an input voltage source of 4.5 V to 17 V. The output voltage range is from 0.768 V to 7 V. Rated input voltage and output current ranges for the evaluation module are given in Table 1-1. The TPS562201EVM-715 evaluation module (EVM) is a single, synchronous buck converter providing 1.05 V at 2 A from 4.5-V to 17-V input. This user’s guide describes the TPS562201EVM-715 performance. Table 1-1. Input Voltage and Output Current Summary EVM INPUT VOLTAGE (VIN) RANGE OUTPUT CURRENT (IOUT) RANGE TPS562201EVM-715 4.5 V to 17 V 0 A to 2 A SLVUAL5A – DECEMBER 2015 – REVISED AUGUST 2021 TPS562201 Step-Down Converter Evaluation Module User's Guide Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated 3 Performance Specification Summary www.ti.com 2 Performance Specification Summary A summary of the TPS562201EVM-715 performance specifications is provided in Table 2-1. Specifications are given for an input voltage of VIN = 12 V and an output voltage of 1.05 V, unless otherwise noted. The ambient temperature is 25°C for all measurement, unless otherwise noted. Table 2-1. TPS562201EVM-715Performance Specifications Summary SPECIFICATIONS VIN TEST CONDITIONS Input voltage range MIN TYP MAX 4.5 12 17 Output voltage Operating frequency CH1 4 VIN = 12 V, IOUT = 2 A Output current range VIN = 12 V, LOUT = 3.3 µH Output ripple voltage VIN = 12 V, IOUT = 2 A TPS562201 Step-Down Converter Evaluation Module User's Guide V 1.05 V 580 kHz 0 Overcurrent limit UNIT 2 A 3 A 20 mVPP SLVUAL5A – DECEMBER 2015 – REVISED AUGUST 2021 Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated www.ti.com Modifications 3 Modifications These evaluation modules are designed to provide access to the features of the TPS562201. Some modifications can be made to this module. 3.1 Output Voltage Setpoint To change the output voltage of the EVMs, it is necessary to change the value of resistor R1. Changing the value of R1 can change the output voltage above 0.768 V. The value of R1 for a specific output voltage can be calculated using Equation 1. R1 = R2 ´ (VOUT - 0.768 V ) (1) 0.768 V Table 3-1 lists the R5 values for some common output voltages. Note that the values given in Table 3-1 are standard values and not the exact value calculated using Table 3-1. Table 3-1. Output Voltages OUTPUT VOLTAGE (V) R1 (kΩ) R2 (kΩ) L1 (µH) MIN TYP MAX C5 + C6 +C7 (µF) 1.0 3.09 10.0 2.2 2.2 4.7 20 - 68 1.05 3.74 10.0 2.2 2.2 4.7 20 - 68 1.2 5.76 10.0 2.2 2.2 4.7 20 - 68 1.5 9.53 10.0 2.2 2.2 4.7 20 - 68 1.8 13.7 10.0 2.2 2.2 4.7 20 - 68 2.5 22.6 10.0 3.3 3.3 4.7 20 - 68 3.3 33.2 10.0 3.3 3.3 4.7 20 - 68 5.0 54.9 10.0 3.3 4.7 4.7 20 - 68 6.5 75.0 10.0 3.3 4.7 4.7 20 - 68 SLVUAL5A – DECEMBER 2015 – REVISED AUGUST 2021 TPS562201 Step-Down Converter Evaluation Module User's Guide Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated 5 Test Setup and Results www.ti.com 4 Test Setup and Results This section describes how to properly connect, set up, and use the TPS562201EVM-715. The section also includes test results typical for the evaluation modules and efficiency, output load regulation, output line regulation, load transient response, output voltage ripple, input voltage ripple, start-up, and switching frequency. 4.1 Input/Output Connections The TPS562201EVM-715 is provided with input/output connectors and test points as shown in Table 4-1. A power supply capable of supplying 2 A must be connected to J1 through a pair of 20-AWG wires. The load must be connected to J2 through a pair of 20-AWG wires. The maximum load current capability is 2 A. Wire lengths must be minimized to reduce losses in the wires. Test point TP1 provides a place to monitor the VIN input voltages with TP2 providing a convenient ground reference. TP7 is used to monitor the output voltage with TP8 as the ground reference. Table 4-1. Connection and Test Points REFERENCE DESIGNATOR FUNCTION J1 VIN (see Table 1-1 for VIN range) J2 VOUT, 1.05 V at 2-A maximum JP1 EN control. Shunt EN to GND to disable, shunt EN to VIN to enable. TP1 VIN positive monitor point TP2 GND monitor test point TP3 EN test point TP4 Switch node test point TP5 Test point for loop response measurements TP6 VOUT positive monitor point TP7 GND monitor test point TP8 GND monitor test point 4.2 Start-Up Procedure 1. Ensure that the jumper at JP1 (Enable control) pins 1 and 2 are covered to shunt EN to GND, disabling the output. 2. Apply appropriate VIN voltage to VIN (J1-2) and GND (J1-1). 3. Move the jumper at JP1 (Enable control) from pins 1 and 2 (EN and GND), to pins 2 and 3 (EN and VIN) enabling the output. 6 TPS562201 Step-Down Converter Evaluation Module User's Guide SLVUAL5A – DECEMBER 2015 – REVISED AUGUST 2021 Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated www.ti.com Test Setup and Results 4.3 Efficiency Figure 4-1 shows the efficiency for the TPS562201EVM-715 at an ambient temperature of 25°C. 100% 90% 80% Efficiency 70% 60% 50% 40% 30% VIN = 5 V VIN = 9 V VIN = 12 V VIN = 15 V 20% 10% 0 0.25 0.5 0.75 1 Load Current (A) 1.25 1.5 1.75 2 D001 Figure 4-1. Efficiency Figure 4-2 shows the efficiency at light loads for the TPS562201EVM-715 at an ambient temperature of 25°C. 100% 90% 80% 70% Efficiency 60% 50% 40% 30% 20% VIN = 5 V VIN = 9 V VIN = 12 V VIN = 15 V 10% 0 0.001 0.002 0.003 0.0050.007 0.01 0.02 0.03 0.05 0.07 0.1 Load Current (A) 0.2 0.3 0.4 0.5 0.7 1 2 2.5 D002 Figure 4-2. Light-Load Efficiency SLVUAL5A – DECEMBER 2015 – REVISED AUGUST 2021 TPS562201 Step-Down Converter Evaluation Module User's Guide Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated 7 Test Setup and Results www.ti.com 4.4 Load Regulation The load regulation for the TPS562201EVM-715 is shown in Figure 4-3. 2.00% Percent Output Voltage 1.00% 0.00 -1.00% VIN = 12 V VIN = 5 V -2.00% 0 0.25 0.5 0.75 1 Load Current (A) 1.25 1.5 1.75 2 D003 Figure 4-3. Load Regulation 4.5 Line Regulation The line regulation for the TPS562201EVM-715 is shown in Figure 4-4. 0.50% 0.40% Percent Output Voltage 0.30% 0.20% 0.10% 0.00 -0.10% -0.20% -0.30% -0.40% -0.50% 4 5 6 7 8 9 10 11 12 Input Voltage (V) 13 14 15 16 17 18 D005 Figure 4-4. Line Regulation 8 TPS562201 Step-Down Converter Evaluation Module User's Guide SLVUAL5A – DECEMBER 2015 – REVISED AUGUST 2021 Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated www.ti.com Test Setup and Results 4.6 Load Transient Response The TPS562201EVM-715 response to load transient is shown in Figure 4-5. The current steps and slew rates are indicated in the figures. Total peak-to-peak voltage variation is as shown. VO = 20 mV / div IO = 1 A / div Time = 100 ms / div Figure 4-5. Load Transient Response, 25% to 75% Load Step 4.7 Output Voltage Ripple The TPS562201EVM-715 output voltage ripple is shown in Figure 4-6, Figure 4-7, and Figure 4-8. The output currents are as indicated. VO = 20 mV / div VO = 20 mV / div VLX = 5 V / div VLX = 5 V / div IL = 500 mA / div IL = 2 A / div Time = 1 ms / div Time = 1 ms / div Figure 4-6. Output Voltage Ripple, IOUT = 2 A Figure 4-7. Output Voltage Ripple, IOUT = 250 mA SLVUAL5A – DECEMBER 2015 – REVISED AUGUST 2021 TPS562201 Step-Down Converter Evaluation Module User's Guide Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated 9 Test Setup and Results www.ti.com VO = 50 mV / div VLX = 5 V / div IL = 500 mA / div Time = 20 ms / div Figure 4-8. Output Voltage Ripple, IOUT = 10 mA 4.8 Input Voltage Ripple The TPS562201EVM-715 input voltage ripple is shown in Figure 4-9. The output current is as indicated. VIN = 100 mV / div VLX = 5 V / div IO = 2 A / div Time = 800 ns / div Figure 4-9. Input Voltage Ripple, IOUT = 2 A 10 TPS562201 Step-Down Converter Evaluation Module User's Guide SLVUAL5A – DECEMBER 2015 – REVISED AUGUST 2021 Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated www.ti.com Test Setup and Results 4.9 Start-Up The TPS562201EVM-715 start-up waveform relative to VIN is shown in Figure 4-10. Load = 1 Ω resistive. The TPS562201EVM-715 start-up waveform relative to enable (EN) is shown in Figure 4-11. Load = 1 Ω resistive. VIN = 5 V / div VIN = 5 V / div VEN = 5 V / div VEN = 5 V / div VO = 500 mV / div VO = 500 mV / div Time = 2 ms / div Time = 1 ms / div Figure 4-10. Start-Up Relative to Input Voltage Figure 4-11. Start-Up Relative to EN 4.10 Shut-Down The TPS562201EVM-715 shut-down waveform relative to VIN is shown in Figure 4-12. Load = 1 Ω resistive. The TPS562201EVM-715 shut-down waveform relative to EN is shown in Figure 4-13. Load = 1 Ω resistive. VIN = 5 V / div VIN = 5 V / div VEN = 5 V / div VEN = 5 V / div VO = 500 mV / div VO = 500 mV / div Time = 10 ms / div Figure 4-12. Shut-Down Relative to Input Voltage Time = 100 ms / div Figure 4-13. Shut-Down Relative to EN SLVUAL5A – DECEMBER 2015 – REVISED AUGUST 2021 TPS562201 Step-Down Converter Evaluation Module User's Guide Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated 11 Board Layout www.ti.com 5 Board Layout This section provides a description of the TPS562201EVM-715, board layout, and layer illustrations. 5.1 Layout The board layouts for the TPS562201EVM-715 are shown in Figure 5-1, Figure 5-2 and Figure 5-3. The top layer contains the main power traces for VIN, VOUT, and ground. Also on the top layer are connections for the pins of the TPS562201 and a large area filled with ground. Most of the signal traces are also located on the top side. The input decoupling capacitors, C1, C2, and C3 are located as close to the IC as possible. The input and output connectors, test points, and all of the components are located on the top side. The bottom layer is a ground plane along with the switching node copper fill, signal ground copper fill and the feed back trace from the point of regulation to the top of the resistor divider network. Figure 5-2. Top Layer Figure 5-1. Top Assembly Figure 5-3. Bottom Layer 12 TPS562201 Step-Down Converter Evaluation Module User's Guide SLVUAL5A – DECEMBER 2015 – REVISED AUGUST 2021 Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated www.ti.com Schematic, Bill of Materials, and Reference 6 Schematic, Bill of Materials, and Reference 6.1 Schematic Figure 6-1 is the schematic for the TPS562201EVM-715. Figure 6-1. TPS562201EVM-715 Schematic Diagram SLVUAL5A – DECEMBER 2015 – REVISED AUGUST 2021 TPS562201 Step-Down Converter Evaluation Module User's Guide Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated 13 Schematic, Bill of Materials, and Reference www.ti.com 6.2 Bill of Materials Table 6-1. Bill of Materials Designator Qty Value Description Package Reference Part Number Manufacturer PWR715 Any 0603 GRM188R61E104KA01D Murata Capacitor, ceramic, 10 µF, 25 V, ±10%, X5R, 1206 1206 GRM31CR61E106KA12L Murata 22 µF Capacitor, ceramic, 22 µF, 10 V, ±10%, X7R, 1206 1206 GRM31CR71A226KE15L Murata 10 pF Capacitor, ceramic, 10 pF, 100 V, ±5%, C0G/NP0, 0603 0603 GRM1885C2A100JA01D Murata Terminal block, 6 A, 3.5 mm pitch, 2-Pos, TH 7.0 x 8.2 x 6.5mm ED555/2DS On-Shore Technology Header, 100 mil, 3 × 1, Tin, TH Header, 3 PIN, 100mil, Tin PEC03SAAN Sullins Connector Solutions Inductor, Shielded drum core, superflux, 3.3 µH, 6.5 A, 0.0172 Ω, SMD WE-HC4 744311330 Wurth Elektronik eiSos Thermal transfer printable labels, 1.250" W x 0.250" H (10,000 per roll) PCB Label 1.25"H × 0.250"W THT-13-457-10 Brady 3.74 kΩ Resistor, 3.74 kΩ, 1%, 0.1 W, 0603 0603 CRCW06033K74FKEA Vishay-Dale 10.0 kΩ Resistor, 10.0 kΩ, 1%, 0.1 W, 0603 0603 CRCW060310K0FKEA Vishay-Dale Resistor, 0 Ω, 5%, 0.1 W, 0603 0603 ERJ-3GEY0R00V Panasonic 1×2 Shunt, 100 mil, gold plated, black Shunt 969102-0000-DA 3M 5 Red Test point, miniature, red, TH Red Miniature Testpoint 5000 Keystone TP2, TP7, TP8 3 Black Test point, miniature, black, TH Black Miniature Testpoint U1 1 C8 0 C7 0 !PCB1 1 C1, C4 2 0.1 µF Capacitor, ceramic, 0.1 µF, 25 V, ±10%, X5R, 0603 C2, C3 2 10 µF C5, C6 2 C8 0 J1, J2 2 JP1 1 L1 1 LBL1 1 R1 1 R2, R4 2 R3, R5 2 0 SH-JP1 1 TP1, TP3, TP4, TP5, TP6 14 Printed Circuit Board 3.3 µH 5001 Keystone 4.5 V to 16 V Input, 2-A synchronous step-down voltage regulator, DDC0006A DDC0006A TPS562201DDC Texas Instruments 10 pF Capacitor, ceramic, 10 pF, 100 V, ±5%, C0G/NP0, 0603 0603 GRM1885C2A100JA01D Murata 22 µF Capacitor, ceramic, 22 µF, 10V, ±10%, X7R, 1206 1206 GRM31CR71A226KE15L Murata TPS562201 Step-Down Converter Evaluation Module User's Guide SLVUAL5A – DECEMBER 2015 – REVISED AUGUST 2021 Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated www.ti.com Schematic, Bill of Materials, and Reference 6.3 Reference 1. TPS56220x 4.5 V to 17 V Input, 2-A Synchronous Step-Down Voltage Regulator in SOT-23 data sheet (SLVSD90) 7 Revision History NOTE: Page numbers for previous revisions may differ from page numbers in the current version. Changes from Revision * (December 2015) to Revision A (August 2021) Page • Updated user's guide title................................................................................................................................... 3 • Updated the numbering format for tables, figures, and cross-references throughout the document. ................3 SLVUAL5A – DECEMBER 2015 – REVISED AUGUST 2021 TPS562201 Step-Down Converter Evaluation Module User's Guide Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated 15 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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