power supply step down module 4 port Hub USB | s.click.aliexpress.com/e/_DlN...
65w battery tester electronic load | s.click.aliexpress.com/e/_DmW...
UM25C USB tester | s.click.aliexpress.com/e/_AYAmkt
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Input voltage: DC 8-35V
Input current: 5.5A
Output voltage: 5.2V
Output current: total maximum 8A, current adaptive, mobile phone single port charging up to 2A.
Dynamic response speed: 300us (load flow change 5%)
Conversion efficiency: 95% (12V to 5.2V3.5A measured, efficiency is related to differential pressure and load size.)
Load regulation rate: 0.2-0.3% (10%-50% load measured by 12V input)
Ripple & Noise: 120mVP-P (20MHz bandwidth 12V to 5.2V3A measured)
Switching frequency: 100KHz
No-load current: 18mA (12V car 5V measured)
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