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Figure 3-6. Bottom Assembly

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TPS54226 Step-Down Converter Evaluation Module User's Guide

SLVU336A – NOVEMBER 2009 – REVISED OCTOBER 2021

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Copyright © 2021 Texas Instruments Incorporated

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Содержание TPS54226EVM-539

Страница 1: ...ion 5 Figure 2 4 TPS54226EVM 539 Load Transient Response 6 Figure 2 5 TPS54226EVM 539 Output Voltage Ripple 6 Figure 2 6 TPS54226EVM 539 Input Voltage Ripple 7 Figure 2 7 TPS54226EVM 539 Start Up 7 Fi...

Страница 2: ...r the evaluation module are given in Table 1 1 Table 1 1 Input Voltage and Output Current Summary EVM INPUT VOLTAGE RANGE OUTPUT VOLTAGE AND CURRENT RANGE TPS54226EVM 539 VIN 4 5 V to 18 V VOUT 1 05 V...

Страница 3: ...ical for the evaluation modules and the following Efficiency Output load regulation Output line regulation Load transient response Output voltage ripple Input voltage ripple Start up Switching frequen...

Страница 4: ...ke sure the jumper at JP1 Enable control is set from EN to OFF 2 Apply appropriate VIN voltage to VIN and PGND terminals at J1 3 Move the jumper at JP1 Enable control to cover EN and ON The EVM will e...

Страница 5: ...gulation The line regulation for the TPS54226EVM 539 is shown Figure 2 3 1 045 1 05 1 055 1 06 1 065 4 8 12 16 20 V Input Voltage V I I 0 001 A O I 1 A O I 2 A O V Output Voltage V O Figure 2 3 TPS542...

Страница 6: ...2 4 TPS54226EVM 539 Load Transient Response 2 7 Output Voltage Ripple The TPS54226EVM 539 output voltage ripple is shown in Figure 2 5 The output current is the rated full load of 2 A VOUT 20 mV div A...

Страница 7: ...TPS54226EVM 539 Input Voltage Ripple 2 9 Start Up The TPS54226EVM 539 start up waveform is shown in Figure 2 7 EN 10 V div VOUT 500 mV div PG 5 V div Time 500 s div m Figure 2 7 TPS54226EVM 539 Start...

Страница 8: ...Voltage V I f Switching Frequency kHz sw V 1 8 V O V 3 3 V O I 1 A O Figure 2 8 TPS54226EVM 539 Switching Frequency Test Setup and Results www ti com 8 TPS54226 Step Down Converter Evaluation Module...

Страница 9: ...t connects VIN to VCC and R4 the power good pullup are located on the back side Analog ground and power ground are connected at a single point on the top layer near pin 5 of the TPS54226 The internal...

Страница 10: ...re 3 3 Internal Layer 1 Board Layout www ti com 10 TPS54226 Step Down Converter Evaluation Module User s Guide SLVU336A NOVEMBER 2009 REVISED OCTOBER 2021 Submit Document Feedback Copyright 2021 Texas...

Страница 11: ...Figure 3 5 Bottom Layer www ti com Board Layout SLVU336A NOVEMBER 2009 REVISED OCTOBER 2021 Submit Document Feedback TPS54226 Step Down Converter Evaluation Module User s Guide 11 Copyright 2021 Texa...

Страница 12: ...tom Assembly Board Layout www ti com 12 TPS54226 Step Down Converter Evaluation Module User s Guide SLVU336A NOVEMBER 2009 REVISED OCTOBER 2021 Submit Document Feedback Copyright 2021 Texas Instrument...

Страница 13: ...chematic Figure 4 1 is the schematic for the TPS54226EVM Figure 4 1 TPS54226EVM 539 Schematic Diagram www ti com Schematic Bill of Materials and Reference SLVU336A NOVEMBER 2009 REVISED OCTOBER 2021 S...

Страница 14: ...Std R5 0 Open Resistor Chip 1 16W 1 0603 Std Std TP1 TP3 TP4 TP6 TP7 TP8 TP9 3 5000 Test Point Red Thru Hole Color Keyed 0 100 0 100 inch 5000 Keystone TP2 TP5 TP9 3 5001 Test Point Black Thru Hole C...

Страница 15: ...ther than TI b the nonconformity resulted from User s design specifications or instructions for such EVMs or improper system design or c User has not paid on time Testing and other quality control tec...

Страница 16: ...These limits are designed to provide reasonable protection against harmful interference in a residential installation This equipment generates uses and can radiate radio frequency energy and if not in...

Страница 17: ...instructions set forth by Radio Law of Japan which includes but is not limited to the instructions below with respect to EVMs which for the avoidance of doubt are stated strictly for convenience and s...

Страница 18: ...any interfaces electronic and or mechanical between the EVM and any human body are designed with suitable isolation and means to safely limit accessible leakage currents to minimize the risk of electr...

Страница 19: ...R DAMAGES ARE CLAIMED THE EXISTENCE OF MORE THAN ONE CLAIM SHALL NOT ENLARGE OR EXTEND THIS LIMIT 9 Return Policy Except as otherwise provided TI does not offer any refunds returns or exchanges Furthe...

Страница 20: ...change without notice TI grants you permission to use these resources only for development of an application that uses the TI products described in the resource Other reproduction and display of thes...

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