SLVAFL5
September 2023
TPS61299
1
Abstract
Trademarks
1
Introduction of Water Heater
2
Low Voltage Start-up Boost Converter Introduction
2.1
General Introduction About TPS61299
2.2
Introduction about Traditional Start-up Process
2.3
Down Mode and Boost Mode Operation
3
TPS61299 Ultra-low Voltage Start-up Design
3.1
Ultra Low Voltage Start-up Set up
3.2
The Way AVIN influence Start-up Process
3.3
The Way Vout Influence Start-up Process
3.4
The Way L Influence Start-up process
3.4.1
Why With the Larger Inductance, The Smaller PVIN Start-up Can Be Achieved?
3.4.2
Why Does The Inductance Continue to Increase, The Minimum PVIN to Start Up Is Not Lower
3.4.3
Why 80 mV Can Start Normally While 70 mV Fail to?
4
Ultra-low Voltage Start-up Design
4.1
Test Waveform
5
Summary
6
References
6
References
Texas Instrument,
TPS61299 95 nA Quiescent Current, 5.5V Boost Converter with Input Current Limit and Fast Transient Performance
data sheet.