TPS54302EVM-716

www.ti.com Table of Contents User’s Guide TPS54302 Step-Down Converter Evaluation Module User's Guide ABSTRACT This user's guide contains background information for the TPS54302 as well as support documentation for the TPS54302EVM-716 evaluation module (PWR716-003). Also included are the performance specifications, the schematic, and the bill of materials for the TPS54302EVM-716. Table of Contents 1 Introduction.............................................................................................................................................................................2 2 Test Setup and Results.......................................................................................................................................................... 4 3 Board Layout.........................................................................................................................................................................13 4 Schematic and Bill of Materials...........................................................................................................................................15 5 Revision History................................................................................................................................................................... 18 List of Figures Figure 2-1. TPS54302EVM-716 Efficiency.................................................................................................................................. 5 Figure 2-2. TPS54302EVM-716 Low Current Efficiency..............................................................................................................5 Figure 2-3. TPS54302EVM-716 Load Regulation....................................................................................................................... 6 Figure 2-4. TPS54302EVM-716 Line Regulation........................................................................................................................ 6 Figure 2-5. TPS54302EVM-716 Transient Response................................................................................................................. 7 Figure 2-6. TPS54302EVM-716 Output Ripple, IOUT = 3 A......................................................................................................... 8 Figure 2-7. TPS54302EVM-716 Output Ripple, IOUT = 100 mA.................................................................................................. 8 Figure 2-8. TPS54302EVM-716 Output Ripple, IOUT = 10 mA.................................................................................................... 9 Figure 2-9. TPS54302EVM-716 Output Ripple, IOUT = 0 A......................................................................................................... 9 Figure 2-10. TPS54302EVM-716 Input Ripple.......................................................................................................................... 10 Figure 2-11. TPS54302EVM-716 Startup Relative to VIN ......................................................................................................... 11 Figure 2-12. TPS54302EVM-716 Startup Relative to Enable.................................................................................................... 11 Figure 2-13. TPS54302EVM-716 Shutdown Relative to VIN .................................................................................................... 12 Figure 2-14. TPS54302EVM-716 Shutdown Relative to EN..................................................................................................... 12 Figure 3-1. TPS54302EVM-716 Top-Side Assembly.................................................................................................................14 Figure 3-2. TPS54302EVM-716 Bottom-Side Layout................................................................................................................15 Figure 4-1. TPS54302EVM-716 Schematic...............................................................................................................................16 List of Tables Table 1-1. Input Voltage and Output Current Summary...............................................................................................................2 Table 1-2. TPS54302EVM-716 Performance Specification Summary.........................................................................................2 Table 1-3. Recommended Component Values............................................................................................................................ 3 Table 2-1. EVM Connectors and Test Points............................................................................................................................... 4 Table 4-1. TPS54302EVM-716 Bill of Materials.........................................................................................................................16 Trademarks All trademarks are the property of their respective owners. SLVUAP9B – MAY 2016 – REVISED OCTOBER 2021 Submit Document Feedback TPS54302 Step-Down Converter Evaluation Module User's Guide Copyright © 2021 Texas Instruments Incorporated 1 Introduction www.ti.com 1 Introduction This user's guide contains background information for the TPS54302 as well as support documentation for the TPS54302EVM-716 evaluation module (PWR716-003). Also included are the performance specifications, the schematic, and the bill of materials for the TPS54302EVM-716. 1.1 Background The TPS54302 dc/dc converter is designed to provide up to a 3-A output from an input voltage source of 8 V to 28 V. Rated input voltage and output current range for the evaluation module are given in Table 1-1. In order to reduce EMI, the TPS54302 introduces frequency spread spectrum. The jittering span is ±6% of the switching frequency with 1/512 swing frequency. This evaluation module is designed to demonstrate the small printed-circuit-board areas that may be achieved when designing with the TPS54302 regulator. The switching frequency is internally set at a nominal 400 kHz. The high-side and low-side MOSFETs are incorporated inside the TPS54302 package along with the gate-drive circuitry. The low drain-to-source on resistance of the MOSFETs allow the TPS54302 to achieve high efficiencies and helps keep the junction temperature low at high output currents. The compensation components are integrated to the integrated circuit (IC), and an external divider allows for an adjustable output voltage. Additionally, the TPS54302 provides an adjustable undervoltage lockout input. The absolute maximum input voltage is 30 V for the TPS54302EVM-716. Table 1-1. Input Voltage and Output Current Summary EVM Input Voltage Range Output Current Range TPS54302EVM-716 VIN = 8 V to 28 V 0 A to 3 A 1.2 Performance Specification Summary A summary of the TPS54302EVM-716 performance specifications is provided in Table 1-2. Specifications are given for an input voltage of VIN = 24 V and an output voltage of 5.0 V, unless otherwise specified. The TPS54302EVM-716 is designed and tested for VIN = 8 V to 28 V. The ambient temperature is 25°C for all measurements, unless otherwise noted. Table 1-2. TPS54302EVM-716 Performance Specification Summary Specification Test Conditions VIN operating voltage range MIN 8 MAX 24 28 Unit V VIN start voltage 6.74 V VIN stop voltage 5.83 V 5 V Output voltage set point Output current range VIN = 8 V to 28 V Line regulation IO = 1.5 A, VIN = 8 V to 28 V ±0.5% Load regulation VIN = 12 V, IO = 0 A to 3 A ±0.5% IO = 0.75 A to 2.25 A Load transient response IO = 2.25 A to 0.75 A 0 3 A Voltage change –150 Recovery time 150 μs Voltage change 150 mV mV Recovery time 150 μs Input ripple voltage IO = 3 A 400 mVPP Output ripple voltage IO = 3 A