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STD LTC3786 1S battery booster.

License: MIT

Mode: Editors' pick

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Update time: 2021-10-29 14:32:58
Creation time: 2019-11-04 21:08:57
Description
A Step-Up Charge Pump Booster is used to provide 5V to supply chip startup voltage and MOSFETs gate when the battery voltage is as low as 3 volts. it can boost 1s lithium battery voltage up to 20V 3A.~~~~
Design Drawing
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ID Name Designator Footprint Quantity
1 10uF C1,C2 CAP-T3528-B 2
2 0.1u CB,CSS 0805 2
3 1u CBIAS 1206 1
4 1p CFLT 0805 1
5 1u CFLY 0805 1
6 22u CIN1,CIN2,CIN3,CIN4 CASE-B_3528 4
7 150uF CINB CAP-SMD_BD8.0-L8.3-W8.3-FD 1
8 4.7u CINT 1206 1
9 47u COUT1,COUT2,COUT3,COUT4 CASE-D_7343 4
10 330uF COUTB CAP-SMD_BD10.0-L10.3-W10.3-FD 1
11 0.047u CP 0805 1
12 0.1uf CTH 0805 1
13 470p CTHP 0805 1
14 BAS140W D1 SOD-323_L1.8-W1.3-LS2.5-RD 1
15 PMEG2005EJ D2,D3 SOD323(F) 2
16 TJC1-2A INPUT,OUTPUT HDR-18.2*5.45 2
17 3.6uh L1 PA1494.362NLT 1
18 MBOT1 MBOT1 TDSON-8-1 1
19 MBOT2 MBOT2 TDSON-8-1 1
20 MTOP1 MTOP1 TDSON-8-1 1
21 MTOP2 MTOP2 TDSON-8-1 1
22 PCTRL P1 SDIP-D-7_2.54 1
23 2n3904S Q1 SOT-23-3_L2.9-W1.3-P1.90-LS2.4-TR 1
24 SI7633 Q2 POWERPAK-SO-8_L6.2-W5.2-P1.27-BL-EP 1
25 4.32k RB R805 1
26 1k RC R805 1
27 82k RFREQ R805 1
28 0 RG,RG1 R805 2
29 100k RGOOD,RRUN R805 2
30 500k RITH R805 1
31 7.2k RP R805 1
32 0R RPLL R805 1
33 4.2k RS R805 1
34 10k RS1,RS2 R805 2
35 0.01 RSH RESC6434X70N 1
36 LTC3786 U1 LT-MSE-16-EDP 1
37 LTC1754 U2 SOT23-6 1
38 100k VR PV36W 1

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