TPS53219EVM-690

www.ti.com Table of Contents User’s Guide TPS53219 Buck Controller Evaluation Module User's Guide ABSTRACT The TPS53219EVM-690 evaluation module allows users to evaluate the Texas Instruments TPS53219, a smallsized, single, buck controller with adaptive on-time D-CAP™ mode control. Included in this document are operating and testing descriptions as well as the EVM schematic, bill of materials, and board layout. Table of Contents 1 Introduction.............................................................................................................................................................................3 Description................................................................................................................................................................................. 4 2.1 Typical Applications............................................................................................................................................................4 2.2 Features............................................................................................................................................................................. 4 2 Electrical Performance Specifications................................................................................................................................. 5 3 Schematic................................................................................................................................................................................6 4 Test Setup................................................................................................................................................................................7 4.1 Test Equipment.................................................................................................................................................................. 7 4.2 Recommended Test Setup.................................................................................................................................................8 5 Configurations........................................................................................................................................................................ 9 5.1 Switching Frequency Selection.......................................................................................................................................... 9 5.2 Soft-Start Selection............................................................................................................................................................ 9 5.3 Mode Selection.................................................................................................................................................................. 9 5.4 Enable Selection................................................................................................................................................................ 9 6 Test Procedure...................................................................................................................................................................... 10 6.1 Line/Load Regulation and Efficiency Measurement Procedure....................................................................................... 10 6.2 Control Loop Gain and Phase Measurement Procedure................................................................................................. 10 6.3 List of Test Points............................................................................................................................................................. 10 6.4 Equipment Shutdown....................................................................................................................................................... 10 7 Performance Data and Typical Characteristic Curves.......................................................................................................11 7.1 Efficiency.......................................................................................................................................................................... 11 7.2 Load Regulation............................................................................................................................................................... 11 7.3 Output Transient...............................................................................................................................................................12 7.4 Output Ripple................................................................................................................................................................... 13 7.5 Switching Node................................................................................................................................................................ 13 7.6 Enable Turn-On/Turn-Off..................................................................................................................................................14 7.7 Output 1.1-V Prebias Turn-On......................................................................................................................................... 15 7.8 Bode Plot..........................................................................................................................................................................15 7.9 Thermal Image................................................................................................................................................................. 16 8 EVM Assembly Drawing and PCB Layout.......................................................................................................................... 17 9 Bill of Materials..................................................................................................................................................................... 21 10 Revision History................................................................................................................................................................. 21 List of Figures Figure 3-1. TPS53219EVM-690 Schematic.................................................................................................................................6 Figure 4-1. Tip and Barrel Measurement for Vout Ripple............................................................................................................ 7 Figure 4-2. TPS53219EVM-690 Recommended Test Setup....................................................................................................... 8 Figure 7-1. Efficiency................................................................................................................................................................. 11 Figure 7-2. Load Regulation.......................................................................................................................................................11 Figure 7-3. Output Load Transient.............................................................................................................................................12 Figure 7-4. Output Load Transient.............................................................................................................................................12 Figure 7-5. Output Ripple.......................................................................................................................................................... 13 SLVU431A – JANUARY 2011 – REVISED DECEMBER 2021 TPS53219 Buck Controller Evaluation Module User's Guide Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated 1 Trademarks www.ti.com Figure 7-6. Switching Node....................................................................................................................................................... 13 Figure 7-7. Enable Turn-On....................................................................................................................................................... 14 Figure 7-8. Enable Turn-Off....................................................................................................................................................... 14 Figure 7-9. Output 1.1-V Prebias Turn-On.................................................................................................................................15 Figure 7-10. Bode Plot at 12 VIN, 1.1 V/25 A............................................................................................................................. 15 Figure 7-11. Top Board at 12 VIN, 1.1 V/25 A............................................................................................................................ 16 Figure 7-12. Bottom Board at 12 VIN, 1.1 V/25 A.......................................................................................................................16 Figure 8-1. TPS53219EVM-690 Top Layer Assembly Drawing, Top View................................................................................ 17 Figure 8-2. TPS53219EVM-690 Bottom Assembly Drawing, Bottom View............................................................................... 17 Figure 8-3. TPS53219EVM-690 Top Copper, Top View.............................................................................................................18 Figure 8-4. TPS53219EVM-690 Layer-2 Copper, Top View...................................................................................................... 18 Figure 8-5. TPS53219EVM-690 Layer-3 Copper, Top View...................................................................................................... 19 Figure 8-6. TPS53219EVM-690 Layer-4 Copper, Top View...................................................................................................... 19 Figure 8-7. TPS53219EVM-690 Layer-5 Copper, Top View...................................................................................................... 20 Figure 8-8. TPS53219EVM-690 Bottom Layer Copper, Top View............................................................................................. 20 List of Tables Table 2-1. TPS53219EVM-690 Electrical Performance Specifications........................................................................................5 Table 5-1. Switching Frequency Selection...................................................................................................................................9 Table 5-2. Soft-Start Selection..................................................................................................................................................... 9 Table 5-3. MODE Selection......................................................................................................................................................... 9 Table 5-4. Enable Selection......................................................................................................................................................... 9 Table 6-1. Functions of Each Test Points...................................................................................................................................10 Table 9-1. The EVM Bill of Materials According to Schematic Shown in Figure 3-1 .................................................................21 Trademarks D-CAP™ is a trademark of Texas Instruments. All trademarks are the property of their respective owners. 2 TPS53219 Buck Controller Evaluation Module User's Guide SLVU431A – JANUARY 2011 – REVISED DECEMBER 2021 Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated www.ti.com Introduction 1 Introduction The TPS53219EVM-690 evaluation module (EVM) uses the TPS53219. The TPS53219 is a small-size, single buck controller with adaptive on-time D-CAP™ mode control. The device provides a fixed 1.1-V output at up to 25 A from a 12-V input bus. The TPS53219EVM-690 also uses the 5-mm × 6-mm TI power block MOSFET (CSD86350Q5D) for high power density and superior thermal performance. SLVU431A – JANUARY 2011 – REVISED DECEMBER 2021 TPS53219 Buck Controller Evaluation Module User's Guide Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated 3 Description www.ti.com Description The TPS53219EVM-690 is designed to use a regulated 12-V bus to produce a regulated 1.1-V output at up to 25 A of load current. The TPS53219EVM-690 is designed to demonstrate the TPS53219 in a typical low-voltage application while providing test points to evaluate the performance of the TPS53219. 2.1 Typical Applications • • • • • Point of load systems Storage computer Server computer Multifunction printer Embedded computing 2.2 Features The TPS53219EVM-690 features: • • • • • • • • 4 25-ADC, steady-state output current Support prebias output voltage start-up High efficiency and high power density by using TI power block MOSFET J1 for selectable switching frequency setting J2 for selectable internal voltage servo soft start J3 for enable function J6 for auto-skip and forced CCM selection Convenient test points for probing critical waveforms TPS53219 Buck Controller Evaluation Module User's Guide SLVU431A – JANUARY 2011 – REVISED DECEMBER 2021 Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated www.ti.com Electrical Performance Specifications 2 Electrical Performance Specifications Table 2-1. TPS53219EVM-690 Electrical Performance Specifications PARAMETER TEST CONDITIONS MIN TYP MAX UNITS INPUT CHARACTERISTICS Voltage range VIN 8 12 14 V Maximum input current VIN = 8 V, IO = 25 A 4 A No load input current VIN = 14 V, IO = 0 A with auto-skip mode 1 mA OUTPUT CHARACTERISTICS Output voltage, VOUT Output voltage regulation Output voltage ripple 1.1 Line regulation (VIN = 8 V to 14 V) 0.5% Load regulation (VIN = 12 V, IO = 0 A to 25 A) 0.5% VIN = 12 V, IO = 25 A Output load current 25 0 Output over current V mVpp 25 A 35 A 300 kHz SYSTEMS CHARACTERISTICS Switching frequency Peak efficiency VIN = 12 V, 1.1 V/10 A 90.90% Full-load efficiency VIN = 12 V, 1.1 V/25 A 88.59% Operating temperature 25 °C Note: Jumpers set to default locations. See Section 5 of this user’s guide. SLVU431A – JANUARY 2011 – REVISED DECEMBER 2021 TPS53219 Buck Controller Evaluation Module User's Guide Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated 5 Schematic www.ti.com AUTOSKI P FCCM 850KHz 750KHz 1000KHz 5.6ms SS 650KHz 2.8ms SS 400KHz 500KHz 300KHz 0.7ms SS 1.4ms SS 250KHz Note: + + + 3 Schematic Figure 3-1. TPS53219EVM-690 Schematic 6 TPS53219 Buck Controller Evaluation Module User's Guide SLVU431A – JANUARY 2011 – REVISED DECEMBER 2021 Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated www.ti.com Test Setup 4 Test Setup 4.1 Test Equipment Voltage Source: The input voltage source VIN must be a 0-V to 14-V variable DC source capable of supplying 10 ADC. Connect VIN to J4 as shown in Figure 4-2. Multimeters: • V1: VIN at TP7 (VIN) and TP8 (GND) • V2: VOUT at TP14 (VOUT) and TP15 (GND) • A1: VIN input current Output Load: The output load must be an electronic constant resistance mode load capable of 0 ADC to 30 ADC at 1.1 V. Oscilloscope: A digital or analog oscilloscope can be used to measure the output ripple. The oscilloscope must be set for the following: • 1-MΩ impedance • 20-MHz bandwidth • AC coupling • 2-µs/division horizontal resolution • 50-mV/division vertical resolution Test points TP14 and TP15 can be used to measure the output ripple voltage by placing the oscilloscope probe tip through TP14 and holding the ground barrel on TP15 as shown in Figure 4-1. Using a leaded ground connection may induce additional noise due to the large ground loop. Metal Ground Barrel Probe Tip TP14 TP15 Figure 4-1. Tip and Barrel Measurement for Vout Ripple Fan: Some of the components of this EVM can approach temperatures of 60°C during operation. A small fan capable of 200-400 LFM is recommended to reduce component temperatures while the EVM is operating. The EVM must not be probed if the fan is not running. Recommended Wire Gauge: 1. VIN to J4 (12-V input): The recommended wire size is 1 × AWG 14 per input connection, with the total length of wire less than four feet (2-foot input, 2-foot return). 2. J5 to LOAD: The minimum recommended wire size is 2 × AWG 14, with the total length of wire less than four feet (2-foot output, 2-foot return). SLVU431A – JANUARY 2011 – REVISED DECEMBER 2021 TPS53219 Buck Controller Evaluation Module User's Guide Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated 7 Test Setup www.ti.com 4.2 Recommended Test Setup FAN DC + Source Vin - + V1 V2 A1 Load - TEXAS INSTRUMENTS Figure 4-2. TPS53219EVM-690 Recommended Test Setup Figure 4-2 is the recommended test setup to evaluate the TPS53219EVM-690. Working at an ESD workstation, make sure that any wrist straps, bootstraps, or mats are connected referencing the user to earth ground before power is applied to the EVM. Input Connections: 1. Prior to connecting the DC input source VIN, it is advisable to limit the source current from VIN to 10-A maximum. Ensure that VIN is initially set to 0 V and connected as shown in Figure 4-2. 2. Connect a voltmeter V1 at TP7 (VIN) and TP8 (GND) to measure the input voltage. 3. Connect a current meter A1 to measure the input current. Output Connections: 1. Connect the load to J5, and set the load to constant resistance mode to sink 0 ADC before VIN is applied. 2. Connect a voltmeter V2 at TP14 (VOUT) and TP15 (GND) to measure the output voltage. Other Connections: Place a fan as shown in Figure 4-2 and turn on, ensuring that air is flowing across the EVM. 8 TPS53219 Buck Controller Evaluation Module User's Guide SLVU431A – JANUARY 2011 – REVISED DECEMBER 2021 Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated www.ti.com Configurations 5 Configurations All jumper selections must be made prior to applying power to the EVM. Users can configure this EVM per the following configurations. 5.1 Switching Frequency Selection The switching frequency can be set by J1. Default setting: 300 kHz Table 5-1. Switching Frequency Selection Jumper Set To Resistor (RF) Connections (Ω) Switching Frequency (kHz) Top(1-2 pin shorted) 0 250 Second (3-4 pin shorted) 187 k 300 Third (5-6 pin shorted) 619 k 400 Fourth (7-8 pin shorted) Open 500 Fifth (9-10 pin shorted) 866 k 650 Sixth (11-12 pin shorted) 309 k 750 Seventh (13-14 pin shorted) 124 k 850 Bottom (15-16 pin shorted) 0 1000 5.2 Soft-Start Selection The soft-start time can be set by J2. Default setting: 0.7 ms Table 5-2. Soft-Start Selection Jumper Set To RMODE Connections (Ω) Soft-Start Time (ms) Top (1-2 pin shorted) 39.2 k 0.7 Second (3-4 pin shorted) 100 k 1.4 Third (5-6 pin shorted) 200 k 2.8 Bottom (7-8 pin shorted) 475 k 5.6 5.3 Mode Selection The MODE can be set by J6. Default setting: Auto Skip Table 5-3. MODE Selection Jumper Set to MODE Selection Top (1-2 pin shorted) Auto Skip Bottom (3-4 pin shorted) Forced CCM 5.4 Enable Selection The controller can be enabled and disabled by J3. Default setting: Jumper shorts on J3 to disable the controller Table 5-4. Enable Selection Jumper Set to Enable Selection Jumper shorts on J3 Disable the controller No Jumper shorts on J3 Enable the controller SLVU431A – JANUARY 2011 – REVISED DECEMBER 2021 TPS53219 Buck Controller Evaluation Module User's Guide Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated 9 Test Procedure www.ti.com 6 Test Procedure 6.1 Line/Load Regulation and Efficiency Measurement Procedure 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. Set up EVM as described in Section 4 and Figure 4-2. Ensure that the load is set to constant resistance mode and to sink 0 ADC. Ensure that all jumper configuration settings per Section 5. Ensure that the jumper provided in the EVM shorts on J3 before VIN is applied. Increase VIN from 0 V to 12 V. Use V1 to measure input voltage. Remove the jumper on J3 to enable the controller. Use V2 to measure VOUT voltage. Vary the load from 0 ADC to 25 ADC; VOUT must remain in load regulation. Vary VIN from 8 V to 14 V. VOUT must remain in line regulation. Put the jumper on J3 to disable the controller. Decrease the load to 0 A. Decrease VIN to 0 V. 6.2 Control Loop Gain and Phase Measurement Procedure The TPS53219EVM-690 contains a 10-Ω series resistor in the feedback loop for loop response analysis. 1. Set up EVM as described in Section 4 and Figure 4-2. 2. Connect an isolation transformer to test points marked TP9 and TP10. 3. Connect a input signal amplitude measurement probe (channel A) to TP9. Connect output signal amplitude measurement probe (channel B) to TP10. 4. Connect ground lead of channel A and channel B to TP11. 5. Inject approximately 40-mV or less signal through the isolation transformer. 6. Sweep the frequency from 100 Hz to 1 MHz with 10 Hz or lower post filter. The control loop gain and phase margin can be measured. 7. Disconnect isolation transformer from bode plot test points before making other measurements (signal injection into feedback can interfere with accuracy of other measurements). 6.3 List of Test Points Table 6-1. Functions of Each Test Points Test Points Name Description TP1 VREG 6.2-V LDO output TP2 PGOOD Power good TP3 EN Enable pin TP4 DRVH High-side driver output TP5 DRVL Low-side driver output TP6 MODE Soft-start and Auto skip/FCCM selection pin TP7 VIN VIN TP8 GND GND for VIN TP9 CHA Input A for loop injection TP10 CHB Input B for loop injection TP11 GND GND TP12 GND GND TP13 VDD Controller power supply input TP14 VOUT Output voltage TP15 GND GND for output voltage 6.4 Equipment Shutdown 1. Shut down the load. 2. Shut down VIN. 3. Shut down FAN. 10 TPS53219 Buck Controller Evaluation Module User's Guide SLVU431A – JANUARY 2011 – REVISED DECEMBER 2021 Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated www.ti.com Performance Data and Typical Characteristic Curves 7 Performance Data and Typical Characteristic Curves Figure 7-1 through Figure 7-9 present typical performance curves for TPS53219EVM-690. 7.1 Efficiency 100 14 VI auto skip 90 80 12 VI auto skip 8 VI auto skip Efficiency - % 70 12 VI forced CCM 60 50 14 VI forced CCM 40 8 VI forced CCM 30 20 10 0 0.001 0.01 0.1 1 10 100 IO - Output Current - A Figure 7-1. Efficiency 7.2 Load Regulation 1.17 VO - Output Voltage - V 1.16 14 VI auto skip 1.15 8 VI auto skip 12 VI auto skip 1.14 1.13 12 VI forced CCM 1.12 8 VI forced CCM 14 VI forced CCM 1.11 1.1 0.001 0.01 0.1 1 10 100 IO - Output Current - A Figure 7-2. Load Regulation SLVU431A – JANUARY 2011 – REVISED DECEMBER 2021 TPS53219 Buck Controller Evaluation Module User's Guide Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated 11 Performance Data and Typical Characteristic Curves www.ti.com 7.3 Output Transient TPS53219EVM-690 Output Transient Test Condition: 12 Vin, 1.1 V/0 A-15 A Forced CCM mode CH1: 1.1 Vout CH4: 1.1 V Output Current Figure 7-3. Output Load Transient TPS53219EVM-690 Output Transient Test Condition: 12 Vin, 1.1 V/0 A-15 A Auto skip mode CH1: 1.1 Vout CH4: 1.1 V Output Current Figure 7-4. Output Load Transient 12 TPS53219 Buck Controller Evaluation Module User's Guide SLVU431A – JANUARY 2011 – REVISED DECEMBER 2021 Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated www.ti.com Performance Data and Typical Characteristic Curves 7.4 Output Ripple TPS53219EVM-690 Output Ripple Test Condition: 12 Vin, 1.1 V/0 A Forced CCM mode CH1: 1.1 Vout Ripple Figure 7-5. Output Ripple 7.5 Switching Node TPS53219EVM-690 Switching Node Test Condition: 12 Vin, 1.1 V/25 A Auto skip mode CH1: SW Figure 7-6. Switching Node SLVU431A – JANUARY 2011 – REVISED DECEMBER 2021 TPS53219 Buck Controller Evaluation Module User's Guide Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated 13 Performance Data and Typical Characteristic Curves www.ti.com 7.6 Enable Turn-On/Turn-Off TPS53219EVM-690 Enable Start Up CH1: Vin Test Condition: 12 Vin, 1.1 V/25 A Auto skip mode CH2: EN CH3: 1.1 Vout CH4: PGOOD Figure 7-7. Enable Turn-On TPS53219EVM-690 Enable Shutdown Test Condition: 12 Vin, 1.1 V/25 A Auto skip mode CH1: Vin CH2: EN CH3: 1.1 Vout CH4: PGOOD Figure 7-8. Enable Turn-Off 14 TPS53219 Buck Controller Evaluation Module User's Guide SLVU431A – JANUARY 2011 – REVISED DECEMBER 2021 Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated www.ti.com Performance Data and Typical Characteristic Curves 7.7 Output 1.1-V Prebias Turn-On Test Condition: 12 Vin, 1.1 V/0 A Auto skip mode TPS53219EVM-690 1.1 V Pre-bias start up CH1: Vin CH2: EN CH3: 1.1 Vout CH4: PGOOD Figure 7-9. Output 1.1-V Prebias Turn-On 7.8 Bode Plot Figure 7-10. Bode Plot at 12 VIN, 1.1 V/25 A SLVU431A – JANUARY 2011 – REVISED DECEMBER 2021 TPS53219 Buck Controller Evaluation Module User's Guide Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated 15 Performance Data and Typical Characteristic Curves www.ti.com 7.9 Thermal Image CSD86350Q5 Figure 7-11. Top Board at 12 VIN, 1.1 V/25 A TPS53119 Figure 7-12. Bottom Board at 12 VIN, 1.1 V/25 A 16 TPS53219 Buck Controller Evaluation Module User's Guide SLVU431A – JANUARY 2011 – REVISED DECEMBER 2021 Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated www.ti.com EVM Assembly Drawing and PCB Layout 8 EVM Assembly Drawing and PCB Layout Figure 8-1 through Figure 8-8 show the design of the TPS53219EVM-690 printed-circuit board. The EVM has been designed using six Layers, 2-oz copper circuit board. TEXAS I NSTRUMENTS Figure 8-1. TPS53219EVM-690 Top Layer Assembly Drawing, Top View Figure 8-2. TPS53219EVM-690 Bottom Assembly Drawing, Bottom View SLVU431A – JANUARY 2011 – REVISED DECEMBER 2021 TPS53219 Buck Controller Evaluation Module User's Guide Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated 17 EVM Assembly Drawing and PCB Layout www.ti.com Figure 8-3. TPS53219EVM-690 Top Copper, Top View Figure 8-4. TPS53219EVM-690 Layer-2 Copper, Top View 18 TPS53219 Buck Controller Evaluation Module User's Guide SLVU431A – JANUARY 2011 – REVISED DECEMBER 2021 Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated www.ti.com EVM Assembly Drawing and PCB Layout Figure 8-5. TPS53219EVM-690 Layer-3 Copper, Top View Figure 8-6. TPS53219EVM-690 Layer-4 Copper, Top View SLVU431A – JANUARY 2011 – REVISED DECEMBER 2021 TPS53219 Buck Controller Evaluation Module User's Guide Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated 19 EVM Assembly Drawing and PCB Layout www.ti.com Figure 8-7. TPS53219EVM-690 Layer-5 Copper, Top View Figure 8-8. TPS53219EVM-690 Bottom Layer Copper, Top View 20 TPS53219 Buck Controller Evaluation Module User's Guide SLVU431A – JANUARY 2011 – REVISED DECEMBER 2021 Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated www.ti.com Bill of Materials 9 Bill of Materials Table 9-1. The EVM Bill of Materials According to Schematic Shown in Figure 3-1 Qty RefDes Description MFR Part Number 1 C1 Capacitor, Ceramic, 4.7 µF, 16 V, X5R, 20%, 0805 STD STD 5 C12–C16 Capacitor, Ceramic, 100 µF, 6.3 V, X5R, 20%, 1210 Murata GRM32ER60J107ME20L 1 C19 Capacitor, Ceramic, 4700 pF, 50 V, X7R, 20%, 0603 STD STD 2 C2, C20 Capacitor, Ceramic, 1000 pF, 25 V, X7R, 10%, 0603 STD STD 2 C3, C10 Capacitor, Ceramic, 0.1 µF, 50 V, X7R, 10%, 0603 STD STD 1 C5 Capacitor, Ceramic, 0.027 µF, 50 V, X7R, 10%, 0603 STD STD 1 C4 Capacitor, Ceramic, 1 µF, 16 V, X7R, 10%, 0603 STD STD 4 C6–C9 Capacitor, Ceramic, 22 µF, 16 V, X5R, 20%, 1206 Murata GRM31CR61C226ME15L 1 L1 Inductor, SMT, 0.44 µH, 30 A, 0.0032 Ω, 0.530” × 0.510” Pulse or E&E Magnetic PA0513-441NLT or 831-02990F 1 Q1 MOSFET, Dual N-chan, Power Block, 25 V, 40 A, QFN-8 Power TI CSD86350Q5D 3 R1, R3, R22 Resistor, Chip, 100 k, 1/16W, 1%, 0603 STD STD 1 R15 Resistor, Chip, 187 k, 1/16W, 1%, 0603 STD STD 1 R16 Resistor, Chip, 619 k, 1/16W, 1%, 0603 STD STD 1 R18 Resistor, Chip, 866 k, 1/16W, 1%, 0603 STD STD 1 R19 Resistor, Chip, 309 k, 1/16W, 1%, 0603 STD STD 2 R2, R23 Resistor, Chip, 200 k, 1/16W, 1%, 0603 STD STD 1 R20 Resistor, Chip, 124 k, 1/16W, 1%, 0603 STD STD 1 R21 Resistor, Chip, 39.2 k, 1/16W, 1%, 0603 STD STD 1 R24 Resistor, Chip, 475 k, 1/16W, 1%, 0603 STD STD 1 R26 Resistor, Chip, 1, 1/10W, 5%, 0805 STD STD 1 R4 Resistor, Chip, 1.00 k, 1/16W, 1%, 0603 STD STD 1 R5 Resistor, Chip, 35.7 k, 1/16W, 1%, 0603 STD STD 6 R6, R11–R13, Resistor, Chip, 0, 1/16W, 5%, 0603 R25, R27 STD STD 1 R10 Resistor, Chip, 5.11, 1/16W, 1%, 0603 STD STD 2 R7, R14 Resistor, Chip, 10.0 k, 1/16W, 1%, 0603 STD STD 1 R8 Resistor, Chip, 8.25 k, 1/16W, 1%, 0603 STD STD 1 R9 Resistor, Chip, 10, 1/16W, 1%, 0603 STD STD 1 U1 IC, Single Synchronous Step-Down Controller, QFN-16 TI TPS53219RGT 10 Revision History NOTE: Page numbers for previous revisions may differ from page numbers in the current version. Changes from Revision * (January 2011) to Revision A (December 2021) Page • Updated the numbering format for tables, figures, and cross-references throughout the document..................3 • Updated the user's guide title............................................................................................................................. 3 • Edited user's guide for clarity..............................................................................................................................3 SLVU431A – JANUARY 2011 – REVISED DECEMBER 2021 TPS53219 Buck Controller Evaluation Module User's Guide Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated 21 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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