User's Manual
Table Of Contents
- 1. Introduction
- 2. General Description
- 3. Simplified Block Diagram
- 4. Key Features
- 5. Product Specifications
- 6. Application Interface
- 7. Mounting the Module onto the Application Board
- 8. Package
- 9. Terms and Abbreviations
Neo_M680 Hardware User Guide V1.0
Copyright Neoway Techlology Co., Ltd. Page 14 of 31
Figure 4 Burst Caused Current Peaks and Voltage Drops
Figure 5 Test Circuit and Peak Current
Results may vary depending on the ESR of capacitors, and the impedance of power source.
A low ESR 1000uF aluminum capacitor for C1 can be selected. As an alternative, a 470uF
tantalum capacitor is also suited. In case of Li-Ion cell battery used, 220uF or even 100uF
tantalum capacitor may be applicable because of the battery’s low internal impedance and the
ability to provide high transient current.
Use a low impedance power source, and keep the resistance of the power supply lines as low as
possible.