20A Communication/ Enterprise Storage ASIC Adaptive Voltage Scaling Power Supply PMBus Ref. Design
Description
This is a 20A Communication or Enterprise Storage ASIC Adaptive Voltage Scaling (AVS) power supply using the TPS53819A PMBus PWM controller. The design enables high power density: PCB layout flexibility and ease of test and design for AVS using the PMBus interface and the Vout Adjustment and Margining Commands. The use of the external Power Block enables flexible PCB placement and upgrade to newer power blocks if needed.
Features
- Twenty nine (29) total components for a 20W power supply 672mm² PCB power supply area 34.1 °C case temperature at 20A load (12VIN: 290KHz). ~89% peak efficiency: >85% efficiency at 12VIN: 1Vout: 290KHz Less than ±8mV peak-to-peak output voltage ripple at 20A load (12VIN) Less than ±30mV peak-to-peak output voltage change in response to 12A load transient at 20A/us slew rate
Applications
Product Categories
- Power management
| Download the bill of materials for PMP10778 | Download |
Test Data
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Download the test file for PMP10778| Title | Updated | Type | Size (KB) | |
|---|---|---|---|---|
| PMP10778 Gerber | 18 Feb 2015 | ZIP | 875 | |
| PMP10778 Assembly Drawing | 18 Feb 2015 | 83 | ||
| PMP10778 BOM | 18 Feb 2015 | 105 | ||
| PMP10778 Schematic | 18 Feb 2015 | 207 |