Li-Ion Power supply

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STD Li-Ion Power supply

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Update time： 2020-12-13 09:52:41

Creation time： 2020-10-19 15:10:09

Description

Li-Ion Power supply with micro-usb charger and 5V and 3V3 output. For low power applications. Does not protect a Li-Ion 18650 against short circuit or deep discharge below specifications. Please use a protection circuit for the 18650 battery.

Design Drawing

schematic diagram

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PCB

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PCB_2020-10-19_20-44-30
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BOM

BOM download Purchase Parts

ID	Name	Designator	Footprint	Quantity	BOM_Supplier Part
1	HDR-F-2.54_1x6	H2	HDR-F-2.54_1X6	1	C40877
2	MBR0530_C475718	D1	SOD-123_L2.8-W1.8-LS3.7-RD	1	C475718
3	Battery	H1	HDR-F-2.54_1X2	1	C49661
4	200K	R3	R0603	1	C211702
5	TPS61041DBVR	U2	SOT-23-5_L3.0-W1.7-P0.95-LS2.8-BR	1	C9846
6	MCP1700T-3302E/TT	U3	SOT-23-3_L2.9-W1.6-P1.90-LS2.8-BR	1	C39051
7	LED-TH-3mm_G	LED1	LED-TH_BD3.0_GREEN	1	C85161
8	4.7uF	C2	C0805	1	C730469
9	10uF	C1	C0805	1	C730472
10	1K	R4	R0603	1	C101253
11	U254-051T-4BH83-F1S	USB1	MICRO-USB-SMD_U254-051T-4BH83-F1S	1	C397452
12	1uF	C4,C6	C0603	2	C730454
13	620K	R2	R0603	1	C23219
14	MCP73831T-2ACI/OT	U1	SOT-23-5_L3.0-W1.7-P0.95-LS2.8-BR	1	C424093
15	2K	R1	R0603	1	C22975
16	100nF	C5	C0402	1	C730431
17	22pF	C3	C0805	1	C165459
18	10uH	L1	IND-SMD_L7.1-W6.6	1	C132141