Texas Instruments TPS22921 - Manual

Page 3 - Schematics and Bill of Materials

Contents 1 TPS22921/22/22B Load Switch Evaluation Module (EVM) ................................................ 5 1.1 Introduction ................................................................................................................... 5 2 Schematics and Bill of Materials ...................

Page 4 - EVM Setup For Calculating Voltage Drop and Load Current; List of Tables; Bill of Materials

www.ti.com List of Figures 3-1 TPS22921/22/22B EVM Component Placement ........................................................................ 9 3-2 TPS22921/22/22B EVM Top-Side Layout .............................................................................. 10 3-3 TPS22921/22/22B EVM Bottom-S...

Page 5 - Introduction; Chapter 1; output current of up to

1.1 Introduction Chapter 1 SLVU286 – January 2009 TPS22921/22/22B Load Switch Evaluation Module (EVM) This user's guide describes the TPS22921/22/22B evaluation module (EVM). This guide contains the EVMschematics, bill of materials, assembly drawings, and top and bottom board layouts. The TPS22921/2...

Page 7 - Chapter 2

2.1 EVM Options 2.2 Schematic A2 B2 C2 A1 B1 C1 U1 TPS22921/22/22B R1 33 R2 330 R3 R OUT1 C OUT1 C IN1 C IN2 C OUT2 R OUT2 R4 C5 1 1 2 2 3 3 4 4 5 5 6 6 7 7 8 8 1 1 2 2 3 3 4 4 5 5 6 6 7 7 8 8 1 1 2 2 3 3 4 4 5 5 6 6 7 7 8 8 J6 OUT RES J5 OUT CAP J4 IN CAP C6 1 F µ 1 F µ 10 F µ 0.1 F µ C 7 C8 C1 C2 ...

Page 9 - Chapter 3

3.1 TPS22921/22/22B EVM Board Chapter 3 SLVU286 – January 2009 Board Layout This section contains three views of the TPS22921/22/22B EVM evaluation board as well as some layoutconsiderations. Figure 3-1. TPS22921/22/22B EVM Component Placement SLVU286 – January 2009 Board Layout 9 Submit Documentati...

Page 11 - Layout Considerations

3.2 Layout Considerations www.ti.com Layout Considerations The V IN and V OUT pins of U1 can carry significant current; so, traces to these pins should be of suitable length and width to minimize voltage drop to the load. Locate the C IN and C OUT bypass capacitors close to the V IN and V OUT pins o...

Page 13 - Chapter 4; The following test equipment is recommended:; Figure 4-1. EVM Setup For Calculating Voltage Drop and Load Current

4.1 Recommended Test Equipment 4.2 Calculating Voltage Drop and Load Current Oscilloscope Voltageprobe 3.6 V, 2 A Max 7” twisted pair, #20 AWG + IN – + OUT – EVM Voltageprobe Chapter 4 SLVU286 – January 2009 EVM Setup The following test equipment is recommended: • Two-channel storage oscilloscope • ...

Page 15 - Chapter 5; Load Switches

Chapter 5 SLVU286 – January 2009 Related Documentation from Texas Instruments • TPS22921, TPS22922, TPS22922B, Low-Input Voltage, Ultra-Low r ON Load Switches data sheet (SLVS749) SLVU286 – January 2009 Related Documentation from Texas Instruments 15 Submit Documentation Feedback

Page 16 - EVALUATION BOARD/KIT IMPORTANT NOTICE; FCC Warning; EVM WARNINGS AND RESTRICTIONS

EVALUATION BOARD/KIT IMPORTANT NOTICE Texas Instruments (TI) provides the enclosed product(s) under the following conditions: This evaluation board/kit is intended for use for ENGINEERING DEVELOPMENT, DEMONSTRATION, OR EVALUATION PURPOSES ONLY and is not considered by TI to be a finished end-product...

Page 17 - IMPORTANT NOTICE

IMPORTANT NOTICE Texas Instruments Incorporated and its subsidiaries (TI) reserve the right to make corrections, modifications, enhancements, improvements,and other changes to its products and services at any time and to discontinue any product or service without notice. Customers shouldobtain the l...

Texas Instruments TPS22921 - Manual

Table of Contents:

Summary

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