TPS562219EVM-663

www.ti.com Table of Contents User’s Guide TPS562219 Step-Down Converter Evaluation Module User's Guide ABSTRACT This user's guide contains information for the TPS562219 as well as support documentation for the TPS562219EVM-663 evaluation module. Included are the performance specifications, schematic, and the bill of materials of the TPS562219EVM-663. 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.................................................................................................................................................................. 9 4.6 Load Transient Response.................................................................................................................................................. 9 4.7 Output Voltage Ripple...................................................................................................................................................... 10 4.8 Input Voltage Ripple......................................................................................................................................................... 10 4.9 Start-Up............................................................................................................................................................................ 11 4.10 Shut-Down..................................................................................................................................................................... 12 5 Board Layout.........................................................................................................................................................................13 5.1 Layout.............................................................................................................................................................................. 13 6 Schematic, Bill of Materials, and Reference...................................................................................................................... 15 6.1 Schematic........................................................................................................................................................................ 15 6.2 Bill of Materials.................................................................................................................................................................16 6.3 Reference.........................................................................................................................................................................17 7 Revision History................................................................................................................................................................... 17 List of Figures Figure 4-1. TPS562219EVM-663 Efficiency................................................................................................................................ 7 Figure 4-2. TPS562219EVM-663 Light Load Efficiency.............................................................................................................. 7 Figure 4-3. TPS562219EVM-663 Load Regulation, 5 V Input.....................................................................................................8 Figure 4-4. TPS562219EVM-663 Load Regulation, 12 V Input...................................................................................................8 Figure 4-5. TPS562219EVM-663 Line Regulation...................................................................................................................... 9 Figure 4-6. TPS562219EVM-663 Load Transient Response, 25% to 75% Load Step................................................................9 Figure 4-7. TPS562219EVM-663 Output Voltage Ripple, IOUT = 2 A........................................................................................ 10 Figure 4-8. TPS562219EVM-663 Input Voltage Ripple, IOUT = 2 A........................................................................................... 10 Figure 4-9. TPS562219EVM-663 Start-Up Relative to VIN ....................................................................................................... 11 Figure 4-10. TPS562219EVM-663 Start-Up Relative to EN...................................................................................................... 11 Figure 4-11. TPS562219EVM-663 Shut-Down Relative to VIN .................................................................................................12 Figure 4-12. TPS562219EVM-663 Shut-Down Relative to EN..................................................................................................12 Figure 5-1. Top Assembly.......................................................................................................................................................... 13 Figure 5-2. Top Layer.................................................................................................................................................................13 Figure 5-3. Bottom Layer........................................................................................................................................................... 14 Figure 6-1. TPS562219EVM-663 Schematic Diagram.............................................................................................................. 15 SLVUAB6A – OCTOBER 2014 – REVISED JULY 2021 Submit Document Feedback TPS562219 Step-Down Converter Evaluation Module User's Guide 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. TPS562219EVM-663Performance Specifications Summary......................................................................................4 Table 3-1. Output Voltages.......................................................................................................................................................... 5 Table 4-1. Connection and Test Points........................................................................................................................................ 6 Table 6-1. Bill of Materials..........................................................................................................................................................16 Trademarks D-CAP2™ is a trademark of Texas Instruments. All trademarks are the property of their respective owners. 2 TPS562219 Step-Down Converter Evaluation Module User's Guide Copyright © 2021 Texas Instruments Incorporated SLVUAB6A – OCTOBER 2014 – REVISED JULY 2021 Submit Document Feedback www.ti.com Introduction 1 Introduction The TPS562219 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 slow start time is externally programmable and there is a dedicated Power Good (PG) pin to aid in voltage monitoring and sequencing. The switching frequency is internally set at a nominal 650 kHz. The high-side and low-side switching MOSFETs are incorporated inside the TPS562219 package along with the gate-drive circuitry. The low drain-to-source on resistance of the MOSFETs allows the TPS562219 to achieve high efficiencies and helps keep the junction temperature low at high output currents. The TPS562219 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 0.8 V to 6.5 V. Rated input voltage and output current ranges for the evaluation module are given in Table 1-1. The TPS562219EVM-663 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 TPS562219EVM-663 performance. Table 1-1. Input Voltage and Output Current Summary EVM Input Voltage Range Output Current Range TPS562219EVM-663 VIN = 4.5 V to 17 V 0 A to 2 A SLVUAB6A – OCTOBER 2014 – REVISED JULY 2021 Submit Document Feedback TPS562219 Step-Down Converter Evaluation Module User's Guide Copyright © 2021 Texas Instruments Incorporated 3 Performance Specification Summary www.ti.com 2 Performance Specification Summary A summary of the TPS562219EVM-663 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. TPS562219EVM-663Performance Specifications Summary Specifications Test Conditions Input voltage range (VIN) Min Typ Max 4.5 12 17 Output voltage Operating frequency CH1 4 VIN = 12 V, IO = 3 A Output current range VIN = 12 V, LO = 1.5 µH Output ripple voltage VIN = 12 V, IO = 3 A TPS562219 Step-Down Converter Evaluation Module User's Guide Copyright © 2021 Texas Instruments Incorporated V 1.05 V 650 kHz 0 Over current limit Unit 2 A A 20 mVPP SLVUAB6A – OCTOBER 2014 – REVISED JULY 2021 Submit Document Feedback www.ti.com Modifications 3 Modifications These evaluation modules are designed to provide access to the features of the TPS562219. 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 0.765 V. The value of R1 for a specific output voltage can be calculated using Equation 1. R1 = R2 ´ (VOUT - 0.765 V ) (1) 0.765 V Table 3-1 lists the R1 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 1.5 2.2 4.7 20 - 68 1.05 3.74 10.0 1.5 2.2 4.7 20 - 68 1.2 5.76 10.0 1.5 2.2 4.7 20 - 68 1.5 9.53 10.0 1.5 2.2 4.7 20 - 68 1.8 13.7 10.0 1.5 2.2 4.7 20 - 68 2.5 22.6 10.0 2.2 3.3 4.7 20 - 68 3.3 33.2 10.0 2.2 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 SLVUAB6A – OCTOBER 2014 – REVISED JULY 2021 Submit Document Feedback TPS562219 Step-Down Converter Evaluation Module User's Guide 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 TPS562219EVM-663. 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 TPS562219EVM-663 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 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). See Table 1-1 for VIN voltage range. 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 TPS562219 Step-Down Converter Evaluation Module User's Guide Copyright © 2021 Texas Instruments Incorporated SLVUAB6A – OCTOBER 2014 – REVISED JULY 2021 Submit Document Feedback www.ti.com Test Setup and Results 4.3 Efficiency Figure 4-1 shows the efficiency for the TPS562219EVM-663 at an ambient temperature of 25°C. 100 90 80 Efficiency (%) 70 60 50 40 30 20 10 VIN = 5V VIN = 12V 0 0 0.25 0.5 0.75 1 Output Current (A) 1.25 1.5 1.75 2 D001 Figure 4-1. TPS562219EVM-663 Efficiency Figure 4-2 shows the efficiency at light loads for the TPS562219EVM-663 at an ambient temperature of 25°C. 100 90 80 Efficiency (%) 70 60 50 40 30 20 10 0 0.001 VIN = 5V VIN = 12V 0.002 0.003 0.005 0.01 0.02 0.03 0.05 0.07 0.1 Output Current (A) 0.2 0.3 0.4 0.5 0.7 1 2 3 4 5 D002 Figure 4-2. TPS562219EVM-663 Light Load Efficiency SLVUAB6A – OCTOBER 2014 – REVISED JULY 2021 Submit Document Feedback TPS562219 Step-Down Converter Evaluation Module User's Guide Copyright © 2021 Texas Instruments Incorporated 7 Test Setup and Results www.ti.com 4.4 Load Regulation The load regulation for the TPS562219EVM-663 is shown in Figure 4-3 and Figure 4-4. 1 0.8 0.6 Load Regulation (%) 0.4 0.2 0 -0.2 -0.4 -0.6 -0.8 -1 0 0.25 0.5 0.75 1 Output Current (A) 1.25 1.5 1.75 2 D004 Figure 4-3. TPS562219EVM-663 Load Regulation, 5 V Input 1 0.8 0.6 Load Regulation (%) 0.4 0.2 0 -0.2 -0.4 -0.6 -0.8 -1 0 0.25 0.5 0.75 1 Output Current (A) 1.25 1.5 1.75 2 D004 Figure 4-4. TPS562219EVM-663 Load Regulation, 12 V Input 8 TPS562219 Step-Down Converter Evaluation Module User's Guide Copyright © 2021 Texas Instruments Incorporated SLVUAB6A – OCTOBER 2014 – REVISED JULY 2021 Submit Document Feedback www.ti.com Test Setup and Results 4.5 Line Regulation The line regulation for the TPS562219EVM-663 is shown in Figure 4-5. 0.5 0.4 0.3 Line Regulation (%) 0.2 0.1 0 -0.1 -0.2 -0.3 -0.4 -0.5 4 6 8 10 12 Input Voltage (V) 14 16 18 D005 Figure 4-5. TPS562219EVM-663 Line Regulation 4.6 Load Transient Response The TPS562219EVM-663 response to load transient is shown in Figure 4-6. The current steps and slew rates are indicated in the figures. Total peak-to-peak voltage variation is as shown. VO = 50 mV / div (ac coupled) IO = 500 mA / div Load step = 0.5 A - 1.5 A, slew rate = 500 mA / µsec Time = 200 µsec / div Figure 4-6. TPS562219EVM-663 Load Transient Response, 25% to 75% Load Step SLVUAB6A – OCTOBER 2014 – REVISED JULY 2021 Submit Document Feedback TPS562219 Step-Down Converter Evaluation Module User's Guide Copyright © 2021 Texas Instruments Incorporated 9 Test Setup and Results www.ti.com 4.7 Output Voltage Ripple The TPS562219EVM-663 output voltage ripple is shown in Figure 4-7. The output currents are as indicated. VO = 20 mV / div (ac coupled) SW = 5 V / div Time = 1 µsec / div Figure 4-7. TPS562219EVM-663 Output Voltage Ripple, IOUT = 2 A 4.8 Input Voltage Ripple The TPS562219EVM-663 input voltage ripple is shown in Figure 4-8. The output current is as indicated. VI = 50 mV / div (ac coupled) SW = 5 V / div Time = 1 µsec / div Figure 4-8. TPS562219EVM-663 Input Voltage Ripple, IOUT = 2 A 10 TPS562219 Step-Down Converter Evaluation Module User's Guide Copyright © 2021 Texas Instruments Incorporated SLVUAB6A – OCTOBER 2014 – REVISED JULY 2021 Submit Document Feedback www.ti.com Test Setup and Results 4.9 Start-Up The TPS562219EVM-663 start-up waveform relative to VIN is shown in Figure 4-9. Load = 1 Ω resistive. VI = 10 V / div SS = 5 V / div VO = 500 mV / div PG = 1 V / div Time = 1 msec / div Figure 4-9. TPS562219EVM-663 Start-Up Relative to VIN The TPS562219EVM-663 start-up waveform relative to enable (EN) is shown in Figure 4-10. Load = 1 Ω resistive. EN = 10 V / div SS = 5 V / div VO = 500 mV / div PG = 1 V / div Time = 1 msec / div Figure 4-10. TPS562219EVM-663 Start-Up Relative to EN SLVUAB6A – OCTOBER 2014 – REVISED JULY 2021 Submit Document Feedback TPS562219 Step-Down Converter Evaluation Module User's Guide Copyright © 2021 Texas Instruments Incorporated 11 Test Setup and Results www.ti.com 4.10 Shut-Down The TPS562219EVM-663 shut-down waveform relative to VIN is shown in Figure 4-11. Load = 1 Ω resistive. VI = 10 V / div SS = 5 V / div VO = 500 mV / div PG = 1 V / div Time = 5 msec / div Figure 4-11. TPS562219EVM-663 Shut-Down Relative to VIN The TPS562219EVM-663 shut-down waveform relative to EN is shown in Figure 4-12. Load = 1 Ω resistive. EN = 10 V / div SS = 5 V / div VO = 500 mV / div PG = 1 V / div Time = 5 msec / div Figure 4-12. TPS562219EVM-663 Shut-Down Relative to EN 12 TPS562219 Step-Down Converter Evaluation Module User's Guide Copyright © 2021 Texas Instruments Incorporated SLVUAB6A – OCTOBER 2014 – REVISED JULY 2021 Submit Document Feedback www.ti.com Board Layout 5 Board Layout This section provides a description of the TPS562219EVM-663, board layout, and layer illustrations. 5.1 Layout The board layout for the TPS562219EVM-663 is 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 TPS562219 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 5-1. Top Assembly Figure 5-2. Top Layer SLVUAB6A – OCTOBER 2014 – REVISED JULY 2021 Submit Document Feedback TPS562219 Step-Down Converter Evaluation Module User's Guide Copyright © 2021 Texas Instruments Incorporated 13 Board Layout www.ti.com Figure 5-3. Bottom Layer 14 TPS562219 Step-Down Converter Evaluation Module User's Guide Copyright © 2021 Texas Instruments Incorporated SLVUAB6A – OCTOBER 2014 – REVISED JULY 2021 Submit Document Feedback 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 TPS562219EVM-663. U1 TPS562219DDF TP1 J1 TP4 VIN = 4.5 - 17 V L1 2.2uH 3 VIN VBST EN SW TP7 VOUT = 1.05 V C5 J2 8 0.1µF C1 0.1µF TP2 GND C2 10µF R4 10.0k C3 10µF 7 PG SH-JP1 JP1 TP3 5 3 2 1 SS VFB GND TP5 2 JP2 C6 22µF SH-JP2 R5 4 C7 22µF C8 22µF R3 TP8 0 TP6 100k 6 R1 3.74k GND GND 1 C4 8200pF R2 10.0k GND GND GND GND Figure 6-1. TPS562219EVM-663 Schematic Diagram SLVUAB6A – OCTOBER 2014 – REVISED JULY 2021 Submit Document Feedback TPS562219 Step-Down Converter Evaluation Module User's Guide Copyright © 2021 Texas Instruments Incorporated 15 Schematic, Bill of Materials, and Reference www.ti.com 6.2 Bill of Materials Table 6-1. Bill of Materials Designator Quantity Value Description !PCB1 1 Package Reference Part Number Manufacturer PWR663 Any C1, C5 2 0.1uF CAP, CERM, 0.1uF, 25V, +/-10%, X5R, 0603 0603 GRM188R61E104KA01D MuRata C2, C3 2 10uF CAP, CERM, 10uF, 25V, +/-10%, X5R, 1210 1210 GRM32DR61E106KA12L MuRata C4 1 8200pF CAP, CERM, 8200pF, 25V, +/-10%, X7R, 0603 0603 GRM188R71E822KA01D MuRata C6, C7, C8 3 22uF CAP, CERM, 22uF, 10V, +/-10%, X7R, 1206 GRM31CR71A226KE15L MuRata J1, J2 2 Terminal Block, 6A, 3.5mm Pitch, 2-Pos, 7.0x8.2x6.5mm TH ED555/2DS On-Shore Technology JP1 1 Header, 100mil, 3x1, Tin, TH Header, 3 PIN, 100mil, Tin PEC03SAAN Sullins Connector Solutions JP2 1 L1 1 Header, 100mil, 2x1, Tin, TH Header, 2 PIN, 100mil, Tin LBL1 1 R1 1 R2, R4 2 R3 R5 Printed Circuit Board 1206 PEC02SAAN Sullins Connector Solutions Inductor, Shielded Drum Core, WE-HC4 Superflux, 2.2 uH, 9A, 0.0115 ohm, SMD 744311220 Wurth Elektronik eiSos Thermal Transfer Printable Labels, 1.250" W x 0.250" H - 10,000 per roll PCB Label 1.25"H x 0.250"W THT-13-457-10 Brady 3.74k RES, 3.74k ohm, 1%, 0.1W, 0603 0603 CRCW06033K74FKEA Vishay-Dale 10.0k RES, 10.0k ohm, 1%, 0.1W, 0603 0603 CRCW060310K0FKEA Vishay-Dale 1 0 RES, 0 ohm, 5%, 0.1W, 0603 0603 ERJ-3GEY0R00V Panasonic 1 100k RES, 100k ohm, 1%, 0.1W, 0603 0603 CRCW0603100KFKEA Vishay-Dale SH-JP1, SH-JP2 2 1x2 Shunt, 100mil, Gold plated, Black Shunt 969102-0000-DA 3M TP1, TP7 2 Red Test Point, Miniature, Red, TH Red Miniature Testpoint 5000 Keystone TP2, TP8 2 Black Test Point, Miniature, Black, TH Black Miniature Testpoint 5001 Keystone TP3, TP5, TP6 3 White Test Point, Miniature, White, TH White Miniature Testpoint 5002 Keystone TP4 1 Yellow Test Point, Miniature, Yellow, TH Yellow Miniature Testpoint 5004 Keystone U1 1 TPS56X21X 4.5V to 17 V Input, Synchronous Step-Down Voltage Regulator DDF0008A DDF0008A TPS562219DDF Texas Instruments 16 2.2 uH TPS562219 Step-Down Converter Evaluation Module User's Guide SLVUAB6A – OCTOBER 2014 – REVISED JULY 2021 Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated www.ti.com Schematic, Bill of Materials, and Reference 6.3 Reference 1. TPS56x219 4.5 V to 17 V Input, 2-A/3-A Synchronous Step-Down Voltage Regulator in SOT-23 data sheet (SLVSCM7) 7 Revision History NOTE: Page numbers for previous revisions may differ from page numbers in the current version. Changes from Revision * (October 2014) to Revision A (July 2021) Page • Updated the numbering format for tables, figures, and cross-references throughout the document. ................3 • Updated user's guide title................................................................................................................................... 3 SLVUAB6A – OCTOBER 2014 – REVISED JULY 2021 Submit Document Feedback TPS562219 Step-Down Converter Evaluation Module User's Guide Copyright © 2021 Texas Instruments Incorporated 17 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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