TIDUEP0
May
2020
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Description
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Resources
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Features
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Applications
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1Design Images
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2System Description
- 2.1
Key System Specifications
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3System Overview
- 3.1
Block Diagram
- 3.2
Design Considerations
- 3.2.1
Small Compact Size
- 3.2.2
Transformer less Solution
- 3.3
Highlighted Products
- 3.3.1
TPD4E05U06 4-Channel Ultra-Low-Capacitance IEC ESD Protection Diode
- 3.3.2
TPD2EUSB30 2-Channel ESD Solution for SuperSpeed USB 3.0 Interface
- 3.3.3
2.3.3 HD3SS3220 10Gbps USB 3.1 USB Type-C 2:1 MUX With DRP Controller
- 3.3.4
TPS54218 2.95V to 6V Input, 2A Synchronous Step-Down SWIFT™ Converter
- 3.3.5
TPS54318 2.95V to 6V Input, 3A Synchronous Step-Down SWIFT™ Converter
- 3.3.6
CSD19538Q3A 100V, N ch NexFET MOSFET™, single SON3x3, 49mOhm
- 3.3.7
LM3488 2.97V to 40V Wide Vin Low-Side N-Channel Controller for Switching Regulators
- 3.3.8
TPS61178 20-V Fully Integrated Sync Boost with Load Disconnect
- 3.3.9
LMZM23601 36-V, 1-A Step-Down DC-DC Power Module in 3.8-mm × 3-mm Package
- 3.3.10
TPS7A39 Dual, 150mA, Wide-Vin, Positive and Negative Low-Dropout (LDO) Voltage Regulator
- 3.3.11
TPS74201 Single-output 1.5-A LDO regulator, adjustable (0.8V to 3.3V), any or no cap, programmable soft start
- 3.3.12
LP5910 300-mA low-noise low-IQ low-dropout (LDO) linear regulator
- 3.3.13
LP5907 250-mA ultra-low-noise low-IQ low-dropout (LDO) linear
- 3.3.14
INA231 28V, 16-bit, i2c output current/voltage/power monitor w/alert in wcsp
- 3.4
System Design Theory
- 3.4.1
Input Section
- 3.4.2
Designing of SEPIC based High Voltage Supply
- 3.4.2.1
Basic Operation Principle of SEPIC Converter
- 3.4.2.2
Design of Dual SEPIC Supply using uncoupled inductors
- 3.4.2.3
Duty Cycle
- 3.4.2.4
Inductor Selection
- 3.4.2.5
Power MOSFET Selection
- 3.4.2.6
Output Diode Selection
- 3.4.2.7
Coupling Capacitor Selection
- 3.4.2.8
Output Capacitor Selection
- 3.4.2.9
Input Capacitor Selection
- 3.4.2.10
Programming the Output Voltage
- 3.4.3
Designing the Low Voltage Power Supply
- 3.4.4
Designing the TPS54218 through Webench Power Designer
- 3.4.5
± 5V Transmit Supply Generation
- 3.4.6
System Clock Synchronization
- 3.4.7
Power and data output connector
- 3.4.8
System Current and Power Monitoring
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4Hardware, Software, Testing Requirements, and Test Results
- 4.1
Testing and Results
- 4.1.1
Test Setup
- 4.1.2
Test Results
- 4.1.2.1
High Voltage Power Supply
- 4.1.2.2
Output Ripple Measurement
- 4.1.2.3
Load Transient Test
- 4.1.2.4
Noise Measurement
- 4.1.2.5
Thermal Performance
- 4.1.2.6
Low Voltage Power Supply
- 4.1.2.6.1
Thermal Performance
- 4.1.2.6.2
FX3 Supply
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5Layout Guidelines
- 5.1
High-Voltage Supply Layout
- 5.2
USB Section Layout Guidelines
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6Design Files
- 6.1
Schematics
- 6.2
Bill of Materials
- 6.3
PCB Layout Recommendations
- 6.3.1
Layout Prints
- 6.4
Altium Project
- 6.5
Gerber Files
- 6.6
Assembly Drawings
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7Software Files
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8Related Documentation
- 8.1
Trademarks
- 8.2
Third-Party Products Disclaimer
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9About the Author