ST1S41: ШИМ + ЧИМ = 100% коэффициент заполнения (бракованная партия)

Powerful (4 A) DC-DC step-down switching regulator, with high PWM frequency and low ripple. Can be controlled by an external controller via the Enable input. Able to produce 100% duty cycle and work effectively at low and high loads. ** English subtitles available ** Excellent chip for adjusting the output voltage from 0.8V to the Vin. In this video, we will study its parameters, calculate the values of the DC-DC converter components, assemble the module and test it in different operating modes and at different loads. Unfortunately, I came across a defective batch with non-working current protection, so the video turned out with a sparkle 🔥🔥🔥 ********* TOOLS: TS-100 Soldering Iron - https://fas.st/75T6ki Soldering Iron Tip (original) for TS-100/101 - https://ali.ski/-sdF1 Soldering Iron Tip (not original) for TS-100/101 - https://ali.ski/1z8cdh Soldering Hot Air Gun - https://ali.ski/DzD9L Silicone Mat - https://fas.st/MbWBDK Syringe Needles - https://fas.st/12SUA Syringe Plunger - https://fas.st/N7Twom Soldering PCB Holder - https://ali.ski/-gqP1z LAOA Tweezers - https://ali.ski/BgsBF Ceramic Tweezers - https://ali.ski/7pwaX Alligator Clip to Banana Plug Cable - https://fas.st/1DfIb Banana Plug to Test Hook Clip Cable - https://ali.ski/u1ceJ6 LAOA Nippers - https://ali.ski/buDNO_ SUPPLIES: Soldering Flux WNB - https://fas.st/HqaOZ Solder Wire (KAINA) - https://fas.st/NcwLm Solder Paste WNB 183С Sn63Pb37 - https://fas.st/t6_Jr Copper Solder Remover Wick - https://ali.ski/Q_v_C EQUIPMENT: UNI-T SMD Tester - https://fas.st/_HrLyJ Electronic load DL24 - https://ali.ski/ON2SN COMPONENTS: 2.54mm Jumper - https://ali.ski/_1asP CONTENTS: 00:00 - About the IC 01:17 - Features, Datasheet 02:02 - Module schematic 03:30 - Calculation of the values of components 05:15 - PCB 05:25 - Soldering 09:09 - Testing 12:16 - Catastrophe 12:44 - What went wrong? 13:06 - Testing with electronic load 14:19 - Another BOOM 14:46 - Conclusions LINKS: Project - https://easyeda.com/sneer2sneer/ST1S41-DC-DC-Regulator Component values calculation - https://easyeda.com/attachments/2022/1/iXndzgeTcdcgF0M2iobI8dzwuuUv0iU2PdgrNg5Q.xlsx Buck-Converter Design Demystified By Donald Schelle and Jorge Castorena - https://www.electronicdesign.com/technologies/dc-dc-converters/article/21188914/buckconverter-design-demystified Buck Converter Design - https://www.mouser.de/pdfdocs/BuckConverterDesignNote.pdf Optimizing Transient Response of Internally Compensated dc-dc Converters With Feedforward Capacitor - https://www.ti.com/lit/an/slva289b/slva289b.pdf Music for this video was taken from the wonderful 'Now YOU Shred' channel - https://www.youtube.com/watch?v=5pH0H_FPTk8 (billions of thanks to Renzo Staiano) #st1s41 #dmitrymuravyev