Split Rail SMPS

Ongoing

STD Split Rail SMPS

License: CC-BY-SA 3.0

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Update time： 2020-08-17 10:38:28

Creation time： 2020-06-02 17:03:39

Description

Ultra low noise switch-mode power supply with +/-15V low noise rails and a 5V support rail. Work in progress.

Design Drawing

schematic diagram

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Positive Rail
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Input Filter
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Negative Rail
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5V Rail
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PCB

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v1-do-not-use
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v2-work-in-progress
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v2-2020-07-25
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v2-2020-07-27-jlcpcb
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BOM

BOM download Purchase Parts

ID	Name	Designator	Footprint	Quantity
1	600Ω 2.9A/38mΩ	BEAD4	L1206	1
2	800Ω 2.5A/50mΩ	BEAD5,BEAD6,BEAD7	L1206	3
3	1u	C37,C24,C5	C0402	3
4	500	VR1,VR3,VR2	TC42X2103E	3
5	10u	C40,C31	C0805	2
6	100n	C29,C32,C34,C35,C36,C16,C19,C21,C22,C23,C48,C6,C7,C8,C10,C13	C0402	16
7	DFLS220L-7	D3,D2,D1	POWERDI-123_L2.8-W1.8-LS3.7-RD	3
8	1u5	TR1	IND-SMD_SRF0703A	1
9	LTST-C190GKT	LED3,LED2,LED1	LED0603-RD	3
10	1u	C38,C25,C4	C0603	3
11	680	R28	R0603	1
12	10u	C39,C18,C26,C27,C3,C11,C15	C1206	7
13	3n3	C30	C0402	1
14	10p	C47,C45,C46	C0402	3
15	DCIN5	H19	HDR-TH_3P-P2.54-V	1
16	LT8364	U5,U3,U1	DFN-12_L4.0-W3.0-P0.50-TL-EP3.3	3
17	+5V	H8	HDR-TH_2P-P2.54-V	1
18	BYPASS	H17	HDR-TH_2P-P2.54-V	1
19	22k	R24,R25,R11,R3,R2,R4	R0402	6
20	15k	R27	R0402	1
21	6k8	R26	R0402	1
22	22u	C33,C44	C0603	2
23	1000Ω 2A/75mΩ	BEAD3,BEAD2	L1206	2
24	LT3094	U4	MSOP-12_L4.0-W3.0-P0.65-LS5.1-TL-EP2.8	1
25	3u3	TR3,TR2	IND-SMD_SRF0703A	2
26	150k	R18,R6	R0805	2
27	4k7	R15,R9	R0805	2
28	220k	R16,R8	R0805	2
29	6k8	R17	R0805	1
30	100k	R5,R10	R0805	2
31	47k	R30,R31	R0805	2
32	680	R32,R33	R0805	2
33	AP6N090N	Q4	SOT-23-3_L2.9-W1.3-P1.90-LS2.4-BR	1
34	10k	R21,R20	R0603	2
35	150	R22,R19	R0603	2
36	22u	C28,C14	C0805	2
37	2n2	C17	C0402	1
38	DCIN-	H13	HDR-TH_3P-P2.54-V	1
39	REGIN-	H15	HDR-TH_3P-P2.54-V	1
40	REGEN-	H5	HDR-TH_2P-P2.54-V	1
41	-15V	H7	HDR-TH_2P-P2.54-V	1
42	2k2	R13,R1	R0402	2
43	47k	R14,R12,R29	R0402	3
44	SSM3K37MFV,L3F	Q2,Q1	SOT-723_L1.2-W0.8-P0.40-LS1.2-BR	2
45	10u	C20,C42,C9,C43	C0603	4
46	470Ω 4A/20mΩ	BEAD1	L1206	1
47	220u	C2	CAP-SMD_BD10.0-L10.3-W10.3-L-FD	1
48	200k	VR4	TC42X2103E	1
49	LP2950ACDT−3.3	U6	DPAK_L6.5-W6.0-P2.29-LS9.9-BR	1
50	4u7	C1	C1210	1
51	LTC6902CMS#PBF	U8	MSOP-10_L3.0-W3.0-P0.50-LS5.0	1
52	SYNC	H11	HDR-TH_3P-P2.54-V	1
53	GND	H18	HDR-TH_3P-P2.54-V	1
54	470nH	L2	IND-SMD_L2.5-W2.0	1
55	VIN	H1	HDR-TH_2P-P2.54-V	1
56	VIN_CM	H9	HDR-TH_2P-P2.54-V	1
57	SYNCEN	H16	HDR-TH_2P-P2.54-V	1
58	SSFMDIS	H2	HDR-TH_2P-P2.54-V	1
59	100	R35,R36,R34	R0402	3
60	33k	R23	R0402	1
61	4u7	C41	C0603	1
62	ACM1211-102-2PL-TL01	L1	FILTER-SMD_4P-L12.0-W11.0-BL	1
63	LT3045-1	U2	MSOP-12_L4.0-W3.0-P0.65-LS5.1-TL-EP2.8	1
64	270	R7	R0805	1
65	4n7	C12	C0402	1
66	DCIN+	H14	HDR-TH_3P-P2.54-V	1
67	REGIN+	H12	HDR-TH_3P-P2.54-V	1
68	REGEN+	H3	HDR-TH_2P-P2.54-V	1
69	+15V	H4	HDR-TH_2P-P2.54-V	1
70	AP6P250N	Q3	SOT-23-3_L2.9-W1.3-P1.90-LS2.4-BR	1