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MT3608 SEPIC rmx

4 months ago 190
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 MT3608 SEPIC rmx with reverse polarity protection based in logic level mosfet. For sample like IRLZ44N. Not yet tested. As test i write about it.



PCB_MT3608 SEPIC rmx


ID Name Designator Footprint Quantity
1 4u7 C1,C2 0805 2
2 22u C3,C4 C0805 2
3 BZX55C12 D1 DO-35_BD2.0-L4.2-P8.20-D0.5-R-RD 1
4 SS34 D2 DO-214AB(SMC)_SS54_YET 1
5 22uH L1,L2 IND-SMD_L7.3-W6.8 2
6 LED-0603_R LED1,LED2 LED0603_RED 2
7 Slide Switch PWR1 SLIDE SWITCH DPDT 1P2T 1
8 pmos Q2 AO3407 1
9 2k R1 0805 1
10 5k R2,R3 R0805 2
11 100K R5 R0805 1
12 R_3296W_EU RP1 RES-ADJ-TH_3296W 1
13 MT3608 U3 SOT-23-6 1
14 Connector VIN,VOUT HDR-1X2/2.54 2




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Comments (5)

Iqubik Reply

Not yet tested. As test i write about it

Iqubik Reply

all work correcly

Iqubik Reply

input 1.5 - 29v(with stabilitron)
out 0.8v-29v

Inductor should be as close as possible to switch (IC in this case), but in this PCB layout it's absolutely wrong. Large current loop will be source of unwanted EMI and can bu unstable.

Iqubik Reply спасибо за подсказку. учту при переделке. но плата и правда рабочая

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