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User's Guide

SBVU016–June 2010

TPS78601/TPS79501/TPS79601DRB Evaluation Module

This user’s guide describes the characteristics, operation, and use of the TPS78601DRBEVM,

TPS79501DRBEVM and TPS7960DRBEVM (or TPS7xx01DRBEVM). These EVMs demonstrate the

operation and use of Texas Instruments’ TPS78601, TPS79501 and TPS79601 low dropout linear

regulators (LDOs), all in 3mm x 3mm SON-8 packages, which are capable of 1.5A, 500mA, and 1A of

output current, respectively. This user’s guide includes setup instructions, a schematic diagram, thermal

guidelines, a bill of materials (BOM), and printed circuit board (PCB) layout drawings for the evaluation

module. Throughout this document, the abbreviation EVM and the term evaluation module are

synonymous with the TPS7xx01DRBEVM unless otherwise noted.

Contents

1 Introduction .................................................................................................................. 1

2 Setup ......................................................................................................................... 2

3 Operation ..................................................................................................................... 2

4 Thermal Guidelines ......................................................................................................... 3

5 Board Layout ................................................................................................................ 4

6 Schematic and Bill of Materials ........................................................................................... 6

List of Figures

1 Top Layer Assembly........................................................................................................ 4

2 Top Layer Routing .......................................................................................................... 5

3 Bottom Layer Routing ...................................................................................................... 5

1 Introduction

The TPS7xx01DRBEVM helps designers evaluate the operation and performance of the LDOs shown in

Table 1.

Table 1. Related Devices

Device Package Size Assembly Description

3mm × 3mm

TPS78601DRB HPA497-001 Ultralow-Noise, High-PSRR, Fast-RF, 1.5A, Low-Dropout Linear Regulator

SON

3mm × 3mm

TPS79501DRB HPA497-002 Ultralow-Noise, High-PSRR, Fast-RF, 500mA, Low-Dropout Linear Regulator

SON

3mm × 3mm

TPS79601DRB HPA497-003 Ultralow-Noise, High-PSRR, Fast-RF, 1.0A, Low-Dropout Linear Regulator

SON

All trademarks are the property of their respective owners.

SBVU016–June 2010 TPS78601/TPS79501/TPS79601DRB Evaluation Module

Summary of content (8 pages)

PAGE 1
User's Guide SBVU016 – June 2010 TPS78601/TPS79501/TPS79601DRB Evaluation Module This user’s guide describes the characteristics, operation, and use of the TPS78601DRBEVM, TPS79501DRBEVM and TPS7960DRBEVM (or TPS7xx01DRBEVM). These EVMs demonstrate the operation and use of Texas Instruments’ TPS78601, TPS79501 and TPS79601 low dropout linear regulators (LDOs), all in 3mm x 3mm SON-8 packages, which are capable of 1.5A, 500mA, and 1A of output current, respectively.
PAGE 2
Setup 2 www.ti.com Setup This section describes the jumpers and connectors on the EVM as well as how to properly connect, set up, and use the TPS7xx01DRBEVM. 2.1 Input / Output Connector Descriptions J1: VIN This connector is the positive input supply voltage. The leads to the input supply should be twisted and kept as short as possible to minimize EMI transmission. Additional bulk capacitance should be added between J1 and J2 if the supply leads are greater than six inches.
PAGE 3
Thermal Guidelines www.ti.com 4 Thermal Guidelines This section provides guidelines for the thermal management of the TPS7xx01DRBEVM board. 4.1 Thermal Considerations Thermal management is a key design component of any power converter and is especially important when the power dissipation in the LDO is high.
PAGE 4
Board Layout 5 www.ti.com Board Layout This section provides the TPS7xx01DRBEVM board layout and illustrations. 5.1 Layout NOTE: Board layouts are not to scale. These figures are intended to show how the board is laid out; they are not intended to be used for manufacturing TPS7xx01DRBEVM PCBs. Figure 1 through Figure 3 show the PCB layouts. Figure 1.
PAGE 5
Board Layout www.ti.com Figure 2. Top Layer Routing Figure 3.
PAGE 6
Schematic and Bill of Materials 6 www.ti.com Schematic and Bill of Materials This section provides the TPS7xx01DRBEVM schematic and bill of materials. 6.1 Schematic The schematic for this EVM is appended to this document. 6.2 Bill of Materials Table 4 lists the bill of materials for the TPS7xx01DRBEVM. Table 4. TPS7xx01DRBEVM Bill of Materials (1) (2) (3) (1) (2) (3) 6 001 002 003 RefDes Value Size Part Number MFR 1 1 1 C1 10µF Capacitor, Ceramic, Low Inductance, 6.
PAGE 7
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 fit for general consumer use. Persons handling the product(s) must have electronics training and observe good engineering practice standards.
PAGE 8
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 should obtain the latest relevant information before placing orders and should verify that such information is current and complete.