TPS7A94EVM-046 Evaluation Module

1 Abstract

Figure 1-1 TPS7A94EVM-046 Evaluation Module

This user's guide describes the operational use of the TPS7A94EVM-046 evaluation module (EVM) as a reference design for engineering demonstration and evaluation of the TPS7A9401DSC, an ultra-low noise, ultra-high PSRR, RF low-dropout (LDO) linear regulator. Included in this user's guide are setup and operating instructions, thermal and layout guidelines, a printed circuit board (PCB) layout, a schematic diagram, and a bill of materials (BOM).

Throughout this document the terms demonstration kit, evaluation board, and evaluation module are synonymous with the TPS7A94EVM-046.

Trademarks

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1 Introduction

Texas Instruments' TPS7A94EVM-046 helps design engineers evaluate the operation and performance of the TPS7A94 linear regulator for possible use in their own circuit application. This particular EVM configuration contains a single high-accuracy, small size, adjustable linear regulator for a wide range of applications. The regulator is capable of delivering up to 1 A to the load with low V_IN to V_OUT dropout voltage. For stability, use a minimum capacitor of 4.7 µF at the input and output.

Table 1-1 lists the related documentation available through the Texas Instrument web site at www.ti.com.

Table 1-1 Related Documentation

Device	Literature Number
TPS7A94	https://www.ti.com/lit/pdf/SBVS336

1.1 Before You Begin

The following warnings and cautions are noted for the safety of anyone using or working close to the TPS7A94EVM-046. Observe all safety precautions.

Warning

Warning Hot surface. Contact may cause burns. Do not touch.

CAUTION:

The circuit module can be damaged by overtemperature. To avoid damage, monitor the temperature during evaluation and provide cooling, as needed, for your system environment.

CAUTION:

Some power supplies can be damaged by application of external voltages. If you are using more than one power supply, check your equipment requirements and use blocking diodes or other isolation techniques, as needed, to prevent damage to your equipment.

CAUTION:

The circuit module is not a finished product or electrical appliance. The module does not contain current or voltage thresholds for circuit protection. It must be used by qualified personnel with additional equipment for evaluation only.