Texas Instruments TPS2151 Manuale Utente

        March 2002 PMP Portable PowerUser’s GuideSLVU067

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2-1Schematic, Bill of Materials, Layout, and Setup       This chapter contains schematics, bill of mate

Schematic of the EVM2-22.1 Schematic of the EVMFigure 2–1 shows the schematic of the EVM.Figure 2–1. Schematic of the TPS2151 Evaluation Module (EVM)+

Schematic of the EVM2-3Schematic, Bill of Materials, Layout, and SetupOnly C2, C4, C5, C6, C8, R2, and R3 are essential for the TPS2151 to functionpro

Bill of Materials2-4Warning Users must not activate the load on SW_OUT before the SW_PGrises to high, if the load current is higher than 50 mA. Other

Layout of the EVM2-5Schematic, Bill of Materials, Layout, and Setup2.3 Layout of the EVMFigure 2–2 illustrates the placement of the components on the

Layout of the EVM2-62.4 Setup of the EVMFor proper operation of the EVM, please follow these steps for any evaluation:1) Verify that the power supply

3-1Changeable Components and Test Points     C1, C2, C3, C4—input capacitors, at least 0.047µF total on each inpu

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IMPORTANT NOTICETexas Instruments Incorporated and its subsidiaries (TI) reserve the right to make corrections, modifications,enhancements, improvemen

EVM IMPORTANT NOTICETexas Instruments (TI) provides the enclosed product(s) under the following conditions:This evaluation kit being sold by TI is int

EVM WARNINGS AND RESTRICTIONSIt is important to operate this EVM within the specified input and output ranges described inthe EVM User’s Guide.Exceedi

How to Use This Manualv PrefaceAbout This ManualThe TPS2151 is one of the four devices in the USB peripheral powermanagement family TP

Information About Cautions and WarningsviInformation About Cautions and WarningsThis book may contain cautions and warnings.This is an example of a ca

Contentsvii 1 Introduction 1-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Contentsviii

1-1Introduction Each device in TPS2140/41/50/51 family integrates a dual-current-limitingpower switch and an adjustable low dropout regula