TPS53125EVM-599

www.ti.com Table of Contents User’s Guide TPS53125 Buck Controller Evaluation Module User's Guide ABSTRACT The TPS53125EVM-599 evaluation module presents an easy-to-use reference design for a common dual output power supply using the TPS53125 controller in cost-sensitive applications. Also included are the schematic, board layout, and bill of materials. Table of Contents 1 Description.............................................................................................................................................................................. 2 1.1 Applications........................................................................................................................................................................2 1.2 Features............................................................................................................................................................................. 2 2 TPS53125EVM-599 Electrical Performance Specifications................................................................................................ 2 3 TPS53125EVM-599 Schematic...............................................................................................................................................3 4 Connector and Test Point Descriptions................................................................................................................................4 4.1 Enable Jumpers/Switches – SW1 and SW2...................................................................................................................... 4 4.2 Test Point Descriptions.......................................................................................................................................................4 5 Test Setup................................................................................................................................................................................5 5.1 Equipment.......................................................................................................................................................................... 5 5.2 Equipment Setup................................................................................................................................................................6 5.3 Start-Up/Shutdown Procedures......................................................................................................................................... 7 5.4 Output Ripple Voltage Measurement Procedure................................................................................................................8 5.5 Equipment Shutdown......................................................................................................................................................... 8 6 TPS53125EVM-599 Test Data................................................................................................................................................. 9 6.1 Efficiency............................................................................................................................................................................9 6.2 Line and Load Regulation................................................................................................................................................ 10 6.3 Output Voltage Ripple and Switching Node Waveforms.................................................................................................. 11 6.4 Switch Node..................................................................................................................................................................... 12 7 TPS53125EVM-599 Assembly Drawings and Layout........................................................................................................ 13 8 TPS53125EVM-599 Bill of Materials.................................................................................................................................... 15 9 Revision History................................................................................................................................................................... 15 Trademarks D-CAP2™ is a trademark of Texas Instruments. All trademarks are the property of their respective owners. SLVU392A – JULY 2010 – REVISED JANUARY 2022 Submit Document Feedback TPS53125 Buck Controller Evaluation Module User's Guide Copyright © 2022 Texas Instruments Incorporated 1 Description www.ti.com 1 Description The TPS53125EVM-599 evaluation board provides the user with a convenient way to evaluate the TPS53125 dual synchronous step-down controller in a realistic cost-sensitive application. Providing both a low core-type 1.05-V and I/O-type, 1.8-V outputs at up to 4 A from a loosely regulated 12-V (8-V to 22-V) source, the TPS53125EVM-599 includes switches and test points to assist users in evaluating the performance of the TPS53125 controller in their applications. 1.1 Applications • • • • Digital television Set-top box DSL and cable modems Cost-sensitive digital consumer products 1.2 Features • • • • • 8-V to 22-V input 1.05-V and 1.8-V outputs Up to 4 A per channel output 350-kHz pseudo-fixed frequency D-CAP2™ mode control Independent enable switches for power-on/power-off testing 2 TPS53125EVM-599 Electrical Performance Specifications Table 2-1. TPS53125EVM-599 Electrical and Performance Specifications Parameter Notes and Conditions Min Typ Max Unit Input Characteristics VIN Input Voltage IIN Input Current VIN = 12 V, IOUT1 = 4 A, IOUT2 = 4 A No Load Input Current VIN = 12 V, IOUT = 0 A Input UVLO IOUT = 4 VIN_UVLO 8 12 22 V – 1.2 1.5 A – 20 35 mA 4.0 4.2 4.5 V 1.03 1.05 1.07 V Output Characteristics VOUT1 Output Voltage 1 VIN = 12 V, IOUT = 2 A Line Regulation VIN = 8 to 22 – – 1% Load Regulation IOUT = 0 A to 4 A – – 1% VOUT1_rip Output Voltage Ripple VIN = 12 V, IOUT = 4 A – – 30 mVpp IOUT1 Output Current 1 VIN = 8 V to 22 V 0 4 A VOUT2 Output Voltage 2 VIN = 12 V, IOUT = 2 A 1.78 1.80 1.82 V Line Regulation VIN = 8 V to 22 V – – 1% Load Regulation IOUT = 0 A to 4 A – – 1% VOUT2_rip Output Voltage Ripple VIN = 12 V, IOUT2 = 4 A – – 30 mVpp IOUT2 Output Current 2 VIN = 8 V to 22 V 0 4 A Systems Characteristics 2 FSW Switching Frequency 200 350 400 ηpk Peak Efficiency VIN =12 – 88% – η Full Load Efficiency VIN = 12, IOUT1 = IOUT2 = 4 A – 80% – TPS53125 Buck Controller Evaluation Module User's Guide Copyright © 2022 Texas Instruments Incorporated kHz SLVU392A – JULY 2010 – REVISED JANUARY 2022 Submit Document Feedback www.ti.com TPS53125EVM-599 Schematic + + + + + 3 TPS53125EVM-599 Schematic For reference only; see Table 8-1 for specific values. Figure 3-1. TPS53125EVM-599 Schematic SLVU392A – JULY 2010 – REVISED JANUARY 2022 Submit Document Feedback TPS53125 Buck Controller Evaluation Module User's Guide Copyright © 2022 Texas Instruments Incorporated 3 Connector and Test Point Descriptions www.ti.com 4 Connector and Test Point Descriptions 4.1 Enable Jumpers/Switches – SW1 and SW2 The TPS53125EVM-599 board includes independent enable switches for each of the two outputs. When the switch is in the DIS position, the channel is disabled and discharged per the internal discharge characteristics of the TPS53125. To enable VOUT1, place SW1 in the EN position. To enable VOUT2, place SW2 in the EN position. 4.2 Test Point Descriptions Table 4-1 lists the test points, their labels, uses, and where additional information is located. Table 4-1. Test Point Description Test Point Label Use TP1 TEST1 Monitor Channel 1 Soft-Start Voltage Section 4.2.4 Section TP2 TEST2 Monitor Channel 2 Soft-Start Voltage Section 4.2.4 TP3 GND Ground for Input Voltage Section 4.2.1 TP4 GND Ground for Channel 1 Output Voltage Section 4.2.2 TP5 SW1 Monitor Switching Node for Channel 1 Section 4.2.5 TP6 GND Ground for Channel 2 Output Voltage Section 4.2.3 TP7 VO2 Monitor Output Voltage for Channel 2 Section 4.2.3 TP8 VO1 Monitor Output Voltage for Channel 1 Section 4.2.2 TP9 VIN Monitor Input Voltage Section 4.2.1 TP10 VREG5 Monitor Output of VREG5 Regulator Section 4.2.6 TP11 SW2 Monitor Switching Node for Channel 2 Section 4.2.5 CN1 VOUT1 Monitor Output Voltage for Channel 1 Section 4.2.2 CN2 VOUT2 Monitor Output Voltage for Channel 2 Section 4.2.3 4.2.1 Input Voltage Monitoring – TPS and TP9 The TPS53125EVM-599 provides two test points for measuring the voltage applied to the module. This allows the user to measure the actual module voltage without losses from input cables and connectors. Measure all input voltage measurements between TP9 and TP3. To use TP9 and TP3, connect a voltmeter positive terminal to TP9 and negative terminal to TP3. 4.2.2 Channel 1 Output Voltage Monitoring – TP4 and TP8 or CN1 The TPS53125EVM-599 provides two test points for measuring the voltage generated at the VO1 output by the module. This allows the user to measure the actual output voltage without losses from output cables and connectors. Measure all DC output voltage between TP8 and TP4. To use TP8 and TP4, connect a voltmeter positive terminal to TP8 and negative terminal to TP4. The TPS53125EVM-599 also provides a shielded oscilloscope jack to allow AC measurements of the output ripple. Insert an oscilloscope probe with exposed ground barrel into CN1 for all output 1 ripple measurements. 4.2.3 Channel 2 Output Voltage Monitoring – TP6 and TP7 or CN2 The TPS53125EVM-599 provides two test points for measuring the voltage generated at the VO1 output by the module. This allows the user to measure the actual output voltage without losses from output cables and connectors. Measure all DC output voltage measurements between TP7 and TP6. To use TP7 and TP6, connect a voltmeter positive terminal to TP7 and negative terminal to TP6. The TPS53125EVM-599 also provides a shielded oscilloscope jack to allow ac measurements of the output ripple. Insert an oscilloscope probe with exposed ground barrel into CN2 for all output 2 ripple measurements. 4 TPS53125 Buck Controller Evaluation Module User's Guide Copyright © 2022 Texas Instruments Incorporated SLVU392A – JULY 2010 – REVISED JANUARY 2022 Submit Document Feedback www.ti.com Connector and Test Point Descriptions 4.2.4 Soft-Start Voltage Monitoring – TP1, TP2, and TP3 The TPS53125EVM-599 provides two test points for measuring the soft-start ramp voltages. TP1 monitors the soft-start ramp of Channel 1. TP2 monitors the soft-start ramp of Channel 2. To use TP1 or TP2, connect an oscilloscope probe between TP1 or TP2 and TP3. 4.2.5 Switching Node Monitoring – TP3, TP5, and TP11 The TPS53125EVM-599 provides two test points for measuring the switching node waveform voltages. TP5 monitors the switching node of Channel 1. TP2 monitors the switching node of Channel 2. To use TP5 or TP11, connect an oscilloscope probe between TP5 or TP11 and TP3. 4.2.6 5-V Regulator Output Monitoring – TP3 and TP10 The TPS53125EVM-599 provides a test point for measuring the output of the internal 5-V regulator. TP10 monitors the output voltage of the internal 5-V regulator. To use TP10, connect a voltmeter positive terminal to TP10 and negative terminal to TP3. 5 Test Setup 5.1 Equipment The following equipment is recommended for testing the TPS53125EVM-599 evaluation board. 5.1.1 Voltage Source The input voltage source, VVIN, must be a 0-V to 15-V, variable DC source capable of supplying 3 ADC minimum. 5.1.2 Meters A1: 0-ADC to 4-ADC ammeter V1: VIN, 0-V to 22-V voltmeter V2: VOUT1, 0-V to 2-V voltmeter V3: VOUT2, 0-V to 2-V voltmeter 5.1.3 Loads LOAD1: One output load is an electronic load set for constant current mode capable of 0 ADC to 4 ADC at 1.05 VDC. LOAD2: The other output load is an electronic load set for constant current mode capable of 0 ADC to 4 ADC at 1.8 VDC. 5.1.4 Oscilloscope and Probe The oscilloscope, analog or digital, must be set for ac-coupled measurement with a 20-MHz bandwidth limiting. Use 20-mV/division vertical resolution and 1.0-µs/division horizontal resolution for the output ripple voltage test. Set cursors at +20 mV and –20 mV. The oscilloscope probe must be a Tektronix P6138 or equivalent oscilloscope probe with exposed conductive ground barrels. 5.1.5 Recommended Wire Gauge VVIN to J3 – The connection between the source voltage, VVIN, and J1 of thTPS53125EVM-599 can carry as much as 2 ADC. The minimum recommended wire size is AWG #16 with the total length of wire less than two feet (1-foot input, 1-foot return). J1 to LOAD1 and J2 to LOAD2 – The connection between J1 and LOAD1 and J2 and LOAD2 of the TPS53125EVM-599 can carry as much as 4 ADC each. The minimum recommended wire size is AWG #14, with the total length of wire less than two feet (1-foot input, 1-foot return). 5.1.6 Other Test Equipment Fan – The TPS53125EVM-599 evaluation module includes components that can become hot to the touch. Because this EVM is not enclosed to allow probing of circuit nodes, a small fan capable of 200–400 lfm is required to reduce component temperatures when operating. SLVU392A – JULY 2010 – REVISED JANUARY 2022 Submit Document Feedback TPS53125 Buck Controller Evaluation Module User's Guide Copyright © 2022 Texas Instruments Incorporated 5 Test Setup www.ti.com 5.2 Equipment Setup Figure 5-1 shows the basic test setup that is recommended to evaluate the TPS53125EVM-599. Note that although the return for J3 and J1 and JP2 are the same system ground, the connections must remain separate as shown in Figure 5-1. 5.2.1 Test Procedure 1. When working at an ESD workstation, ensure that wrist straps, bootstraps, or mats are connected referencing the user to earth ground before power is applied to the EVM. Electrostatic smock and safety glasses are also recommended. 2. Prior to connecting the DC input source, VIN, it is advisable to limit the source current from VIN to 3 ADC maximum. Ensure that VIN is initially set to 0 V and connected as shown in Figure 5-1. 3. Verify SW1 and SW2 are in the desired position. 4. Increase VIN from 0 V to 12 VDC. 5. Vary VIN between 8 VDC and 22 VDC. 6. Vary LOAD1 between 0 A and 4 ADC. 7. Vary LOAD2 between 0 A and 4 ADC. 8. Adjust SW1 between EN and DIS. 9. Adjust SW2 between EN and DIS. 10. Set SW1 to DIS. 11. Set SW2 to DIS. 12. Decrease LOAD1 to 0 A. 13. Decrease LOAD2 to 0 A. 14. Decrease VIN to 0 V. 6 TPS53125 Buck Controller Evaluation Module User's Guide Copyright © 2022 Texas Instruments Incorporated SLVU392A – JULY 2010 – REVISED JANUARY 2022 Submit Document Feedback www.ti.com Test Setup 5.2.2 Test Setup Diagram FAN Oscilloscope + V1 1MW, AC 20mV / div 20MHz - + - + + A1 - + LOAD1 1.05V @ 4A V2 LOAD2 1.8V @ 4A V3 - + VVIN Figure 5-1. TPS53125EVM-599 Recommended Test Setup 5.3 Start-Up/Shutdown Procedures Perform the start-up and shutdown procedures in the following manner. 1. 2. 3. 4. 5. 6. 7. Increase VIN from 0 V to 12 VDC. Vary LOAD1 from 0 A–4 ADC. Vary LOAD2 from 0 A–4 ADC. Vary VIN from 8 VDC to 22 VDC. Decrease VIN to 0 VDC. Decrease LOAD1 to 0 A. Decrease LOAD2 to 0 A. SLVU392A – JULY 2010 – REVISED JANUARY 2022 Submit Document Feedback TPS53125 Buck Controller Evaluation Module User's Guide Copyright © 2022 Texas Instruments Incorporated 7 Test Setup www.ti.com 5.4 Output Ripple Voltage Measurement Procedure Perform the output ripple voltage measurement procedure in the following manner. 1. 2. 3. 4. 5. 6. 7. 8. 9. Increase VIN from 0 V to 12 VDC. Adjust LOAD1 to desired load between 0 ADC and 4 ADC. Adjust LOAD2 to desired load between 0 ADC and 4 ADC. Adjust VIN to desired load between 8 VDC and 22 VDC. Connect an oscilloscope probe to CN1 or CN2 shown in Figure 5-1. Measure the output ripple. Decrease VIN to 0 VDC. Decrease LOAD1 to 0 A. Decrease LOAD2 to 0 A. 5.5 Equipment Shutdown Shut down the equipment in the following manner. 1. 2. 3. 4. 5. 8 Shut down the oscilloscope. Shut down VIN. Shut down LOAD1. Shut down LOAD2. Shut down FAN. TPS53125 Buck Controller Evaluation Module User's Guide Copyright © 2022 Texas Instruments Incorporated SLVU392A – JULY 2010 – REVISED JANUARY 2022 Submit Document Feedback www.ti.com TPS53125EVM-599 Test Data 6 TPS53125EVM-599 Test Data Figure 6-1 through Figure 6-8 present typical performance curves for the TPS53125EVM-599. Because actual performance data can be affected by measurement techniques and environmental variables, these curves are presented for reference and may differ from actual field measurements. 6.1 Efficiency 95 90 h - Efficiency - % 85 VI = 8 V 80 VI = 12 V 75 70 VI = 22 V 65 60 55 50 0 1 2 3 ILOAD - Load Current - A 4 5 VIN = 8 V – 22 V, VOUT1 = 1.05 V, IOUT1 = 0 A – 4 A Figure 6-1. TPS53125EVM-599 Efficiency vs Load Current 100 VI = 8 V 90 h - Efficiency - % 80 VI = 12 V 70 VI = 22 V 60 50 40 30 20 10 0 0 0.5 1 1.5 2 2.5 3 ILOAD - Load Current - A 3.5 4 4.5 VIN = 8 V – 22 V, VOUT2 = 1.80 V, IOUT2 = 0 A – 4 A Figure 6-2. TPS53125EVM-599 Efficiency vs Load Current SLVU392A – JULY 2010 – REVISED JANUARY 2022 Submit Document Feedback TPS53125 Buck Controller Evaluation Module User's Guide Copyright © 2022 Texas Instruments Incorporated 9 TPS53125EVM-599 Test Data www.ti.com 6.2 Line and Load Regulation 1.07 VO - Output Voltage - V 1.065 VI = 22 V VI = 12 V 1.06 VI = 8 V 1.055 1.05 0 0.5 1 1.5 2 2.5 3 ILOAD - Load Current - A 3.5 4 4.5 VIN = 8 V – 22 V, VOUT1 = 1.05 V, IOUT = 0 A – 4 A Figure 6-3. TPS53125EVM-599 Output Voltage vs Load Current 1.86 1.855 VO - Output Voltage - V 1.85 1.845 VI = 22 V VI = 12 V 1.84 1.835 VI = 8 V 1.83 1.825 1.82 0 0.5 1 1.5 2 2.5 3 ILOAD - Load Current - A 3.5 4 4.5 VIN = 8 V – 22 V, VOUT1 = 1.80 V, IOUT = 0 A – 4 A Figure 6-4. TPS53125EVM-599 Output Voltage vs Load Current 10 TPS53125 Buck Controller Evaluation Module User's Guide Copyright © 2022 Texas Instruments Incorporated SLVU392A – JULY 2010 – REVISED JANUARY 2022 Submit Document Feedback www.ti.com TPS53125EVM-599 Test Data 6.3 Output Voltage Ripple and Switching Node Waveforms VIN = 12, VOUT1 = 1.05, IOUT1 = 4 A Figure 6-5. TPS53125EVM-599 Output Voltage Ripple and Switching Waveform VIN = 12, VOUT2 = 1.80, IOUT2 = 4 A Figure 6-6. TPS53125EVM-599 Output Voltage Ripple SLVU392A – JULY 2010 – REVISED JANUARY 2022 Submit Document Feedback TPS53125 Buck Controller Evaluation Module User's Guide Copyright © 2022 Texas Instruments Incorporated 11 TPS53125EVM-599 Test Data www.ti.com 6.4 Switch Node tVIN = 12, VOUT1 = 1.05, IOUT1 = 4A, Ch1: TP5 (SW1) Figure 6-7. TPS53125EVM-599 Switching Waveforms VIN = 12, VOUT2 = 1.80, IOUT2 = 4A Ch1: TP11 (SW2) Figure 6-8. TPS53125EVM-599 Switching Waveforms 12 TPS53125 Buck Controller Evaluation Module User's Guide Copyright © 2022 Texas Instruments Incorporated SLVU392A – JULY 2010 – REVISED JANUARY 2022 Submit Document Feedback www.ti.com TPS53125EVM-599 Assembly Drawings and Layout 7 TPS53125EVM-599 Assembly Drawings and Layout Figure 7-1 through Figure 7-5 show the design of the TPS53125EVM-599 printed-circuit board. The EVM has been designed using a 4-layer, 2-oz copper-clad circuit board 3.5 in 2.7 to allow the user to easily view, probe, and evaluate the TPS53125 control IC in a practical application. Moving components to both sides of the PCB or using additional internal layers can offer additional size reduction for space-constrained systems. Figure 7-1. TPS53125EVM-599 Component Placement, Viewed From Top Figure 7-2. TPS53125EVM-599 Top Copper, Viewed From Top SLVU392A – JULY 2010 – REVISED JANUARY 2022 Submit Document Feedback TPS53125 Buck Controller Evaluation Module User's Guide Copyright © 2022 Texas Instruments Incorporated 13 TPS53125EVM-599 Assembly Drawings and Layout www.ti.com Figure 7-3. TPS53125EVM-599 Bottom Copper, Viewed From Bottom Figure 7-4. TPS53125EVM-599 Internal 1, X-Ray View From Top Figure 7-5. TPS53125EVM-599 Internal 2, X-Ray View From Top 14 TPS53125 Buck Controller Evaluation Module User's Guide Copyright © 2022 Texas Instruments Incorporated SLVU392A – JULY 2010 – REVISED JANUARY 2022 Submit Document Feedback www.ti.com TPS53125EVM-599 Bill of Materials 8 TPS53125EVM-599 Bill of Materials Table 8-1 contains the bill of materials for TPS53125EVM-599. The reference designators reference the schematic in Figure 3-1 and assembly locations in Figure 7-1. The components listed with a quantity of 0 are not populated on the PCB but are provided for reference. Table 8-1. TPS53125EVM-599 Bill of Materials QTY RefDes Value Description Size Part Number MFR 0 C1 Capacitor, Aluminum, 25 V, 20% 0.328 × 0.390 inch Std Std 0 C12, C19, C20, C21 Capacitor, Ceramic, 0603 Std Std 0 C14, C7 Capacitor, OS CON, 6.3 V, 20% 0.260 Sq inch Std Std 1 C15 4.7 µF Capacitor, Ceramic, 10 V, X5R, 20% 0805 Std Std 1 C16 1 µF Capacitor, Ceramic, 16 V, X5R, 20% 0805 Std Std 4 C9, C10, C17, C18 47 µF Capacitor, Ceramic, 6.3 V, X5R, 20% 1206 Std Std 4 C2, C3, C4, C5 10 µF Capacitor, Ceramic, 25 V, X5R, 20% 1210 Std Std 2 C22, C23 4700 pF Capacitor, Ceramic, Low Inductance, 16 V, X7R, 20% 0603 Std Std 2 C6, C11 0.1 µF Capacitor, Ceramic, 50 V, X7R, 10% 0603 Std Std 0 C8, C13 330 µF Capacitor, PXE, 330-µF, 4.0-V, 15-mΩ, 20% 7343 (D) APXE4R0ARA331MF61G NIPPON CHEMI-CON 2 CN1, CN2 131-5031-00 Adaptor, 3.5-mm probe clip ( or 131-5031-00) 0.2 131-4244-00 Tektronix 0 D1, D2 Diode, Schottky, 1-A, 30-V SMA Std Std 3 J1, J2, J3 ED120/2DS Terminal Block, 2-pin, 15-A, 5.1 mm 0.40 × 0.35 inch ED120/2DS OST 2 L1, L2 3.3 µH Inductor, SMT, 5.6 A, 29.7 mΩ 0.256 × 0.280 inch SPM6530T-3R3M TDK 2 Q1, Q3 FDS8876 MOSFET, N-ch, 30-V, 10.2-A, 14-mΩ SO8 FDS8876 Fairchild 2 Q2, Q4 FDS8690 MOSFET, N-ch, 30-V, 11.4-A, 11.4-mΩ SO8 FDS8690 Fairchild 1 R1 1.82 k Resistor, Chip, 1/16W, 1% 0603 Std Std 2 R11, R12 10 Resistor, Chip, 1/16W, 1% 0603 Std Std 1 R13 430 Resistor, Chip, 1/16W, 1% 0603 Std Std 0 R2, R7, R9 Resistor, Chip, 1/16W, 1% 0603 Std Std 1 R3 3.32 k Resistor, Chip, 1/16W, 1% 0603 Std Std 2 R4, R6 10.0 k Resistor, Chip, 1/16W, 1% 0603 Std Std 1 R5 12.1 k Resistor, Chip, 1/16W, 1% 0603 Std Std 2 R8, R10 5.62 k Resistor, Chip, 1/16W, 1% 0603 Std Std 2 SW1, SW2 G12AP-R0 Switch, ON-ON Mini Toggle 0.28 × 0.18 inch G12AP-R0 Nikkai 4 TP1, TP2, TP5, TP11 5012 Test Point, White, Thru Hole 0.125 × 0.125 inch 5012 Keystone 1 TP10 5013 Test Point, Orange, Thru Hole 0.125 × 0.125 inch 5013 Keystone 3 TP3, TP4, TP6 5011 Test Point, Black, Thru Hole 0.125 × 0.125 inch 5011 Keystone 2 TP7, TP8 5014 Test Point, Yellow, Thru Hole 0.125 × 0.125 inch 5014 Keystone 1 TP9 5010 Test Point, Red, Thru Hole 0.125 × 0.125 inch 5010 Keystone 1 U1 TPS53125PW IC, Dual Synchronous Step-Down Controller For Low-Voltage Power Rails TSSOP TPS53125PW TI 9 Revision History NOTE: Page numbers for previous revisions may differ from page numbers in the current version. Changes from Revision * (July 2010) to Revision A (January 2022) Page • Updated the numbering format for tables, figures, and cross-references throughout the document. ................2 • Updated the user's guide title............................................................................................................................. 2 SLVU392A – JULY 2010 – REVISED JANUARY 2022 Submit Document Feedback TPS53125 Buck Controller Evaluation Module User's Guide Copyright © 2022 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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