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TPS7A4700RGWR
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TPS7A4700RGWR 产品设计参考 - TI

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TPS7A4700RGWR 产品设计参考

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User's Guide
SLVU549December 2011
TPS7A1601EVM-046
This users guide describes operational use of theTPS7A1601EVM-046 evaluation module (EVM) as a
reference design for engineering demonstration and evaluation of the TPS7A1601, low-dropout (LDO)
linear regulator. Included in this users guide are setup instructions, a schematic diagram, layout and
thermal guidelines, a bill of materials, and test results.
Contents
1 Introduction .................................................................................................................. 2
2 Setup ......................................................................................................................... 2
2.1 Input/Output Connectors and Jumper Descriptions ........................................................... 2
2.2 Equipment Setup ................................................................................................... 2
3 Operation ..................................................................................................................... 3
4 Test Results ................................................................................................................. 3
4.1 Turnon Sequence .................................................................................................. 3
4.2 Output Load Transient ............................................................................................. 3
4.3 Power Good ........................................................................................................ 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 ..................................................................................................... 7
List of Figures
1 Turnon Sequence........................................................................................................... 3
2 Load Step and Transient Response...................................................................................... 4
3 Power Good Operation..................................................................................................... 4
4 Top-Layer Silkscreen....................................................................................................... 5
5 Top-Layer Routing .......................................................................................................... 6
6 Bottom-Layer Routing ...................................................................................................... 6
7 TPS7A1601EVM-046 Schematic ......................................................................................... 7
List of Tables
1 Thermal Resistance, θ
JA
, and Maximum Power Dissipation........................................................... 5
2 TPS7A1601EVM-046 Bill of Materials ................................................................................... 7
PowerPAD is a trademark of Texas Instruments.
1
SLVU549December 2011 TPS7A1601EVM-046
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Copyright © 2011, Texas Instruments Incorporated
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LDO Voltage Regulator, Adjustable, 3V to 36V in, 307mV drop, 1.4V to 34V/1A out, VQFN-20
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