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STD Datasheet(Fiches technique) 1 Page - Texas Instruments

Numéro de pièce STD
Description  TPS7A4700EVM-094 Evaluation Module
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Fabricant  TI1 [Texas Instruments]
Site Internet  http://www.ti.com
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User's Guide
SLVU741 – May 2012
TPS7A4700EVM-094 Evaluation Module
This User’s Guide describes the functional operation of theTPS7A4700EVM-094 Evaluation Module (EVM)
for use as a design reference and as a general engineering demonstration for the TPS7A4700 low dropout
linear (LDO) regulator. Included in this User’s Guide are setup instructions, a schematic diagram, layout
and thermal guidelines, a bill of materials, and test results.
Contents
1
Introduction
.................................................................................................................. 1
2
Setup
......................................................................................................................... 2
2.1
Input/Output Connector-Headers and Jumper Descriptions
.................................................. 2
2.2
Soldering Guidelines
............................................................................................... 2
2.3
Initial Setup and Equipment Interconnect
....................................................................... 3
3
Operation
..................................................................................................................... 3
4
Test Results
................................................................................................................. 3
4.1
Turn On Characteristic
............................................................................................ 3
4.2
Output Load Transient
............................................................................................. 4
5
Thermal Guidelines and Layout Recommendations
................................................................... 4
6
Board Layout
................................................................................................................ 5
7
Schematic and Bill of Materials
........................................................................................... 7
7.1
Schematic
........................................................................................................... 7
7.2
Bill of Materials
..................................................................................................... 8
List of Figures
1
Turn On Sequence
......................................................................................................... 3
2
Step Load and Output Voltage Transient Response
.................................................................. 4
3
Assembly Layer
............................................................................................................. 5
4
Top Layer Routing
.......................................................................................................... 6
5
Bottom Layer Routing
...................................................................................................... 6
6
TPS7A4700EVM-094 Schematic
......................................................................................... 7
List of Tables
1
J10 Jumper Voltages
....................................................................................................... 2
2
Thermal Resistance,
θ
JA, and Maximum Power Dissipation...........................................................
4
3
TPS7A4700EVM-094 Bill of Materials
................................................................................... 8
1
Introduction
The TI TPS7A4700-094 Evaluation Module is designed to help engineers evaluate the operation and
performance of the TPS7A4700 linear regulator for possible use in their own circuit application. Notable
features of this LDO regulator include thermal and current limit shutdown protection, pin selectable output
voltage, low dropout, and low noise (~3.5 µV/
√Hz). The EVM contains a single linear regulator in a 5 mm
× 5 mm, QFN (RGW), thermally enhanced ( PowerPad™) package. This regulator, including external
components, is capable of delivering up to 1.0 A to a dynamic load across the full recommended input and
output voltage range of the LDO. A multi-pin header with jumpers is provided to enable easy manual
selection of the output voltage.
PowerPad is a trademark of Texas Instruments.
1
SLVU741 – May 2012
TPS7A4700EVM-094 Evaluation Module
Submit Documentation Feedback
Copyright © 2012, Texas Instruments Incorporated


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