Texas Instruments TPS628436-7-8EVM-167, User Manual

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User’s Guide
TPS628436-7-8EVM-167 Evaluation Module
ABSTRACT
The TPS628436-7-8EVM-167 (BSR167) facilitates the evaluation of the TPS62843 family of 600-mA, step-down
converters with 300-nA I
Q
in tiny 0.8-mm by 1.05-mm WCSP packages with 0.4-mm pitch. The EVM contains 3
separate circuits to create output voltages between 0.4 V and 3.6 V from higher input voltages between 1.8 V
and 5.5 V. All circuits have a maximum height of 1.0-mm. The TPS62843x is a highly efficient and tiny solution
for point-of-load (POL) converters for space-constrained applications, such as wearables and smartphones.
Table of Contents
1 Introduction ............................................................................................................................................................................. 2
1.1 Performance Specification................................................................................................................................................. 2
1.2 Modifications...................................................................................................................................................................... 2
2 Setup ........................................................................................................................................................................................ 4
2.1 Input/Output Connector Descriptions................................................................................................................................. 4
2.2 Setup.................................................................................................................................................................................. 4
3 Board Layout ........................................................................................................................................................................... 5
4 Schematic ................................................................................................................................................................................ 7
5 List of Materials ....................................................................................................................................................................... 9
List of Figures
Figure 1-1. Loop Response Measurement Modification.............................................................................................................. 3
Figure 3-1. Top Assembly............................................................................................................................................................ 5
Figure 3-2. Top Layer................................................................................................................................................................... 6
Figure 3-3. Bottom Layer............................................................................................................................................................. 6
Figure 4-1. TPS628436 Schematic.............................................................................................................................................. 7
Figure 4-2. TPS628437 Schematic.............................................................................................................................................. 7
Figure 4-3. TPS628438 Schematic.............................................................................................................................................. 8
List of Tables
Table 1-1. BSR167 Circuit Options.............................................................................................................................................. 2
Table 1-2. Performance Specification Summary.......................................................................................................................... 2
Table 2-1. Input/Output Connectors............................................................................................................................................. 4
Table 5-1. TPS628436 List of Materials....................................................................................................................................... 9
Table 5-2. TPS628437 List of Materials....................................................................................................................................... 9
Table 5-3. TPS628438 List of Materials....................................................................................................................................... 9
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