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librem5_mainboard — The Librem 5 schematics, copper layers, assembly drawings, and BOMs (mainboard and USB-C board). | Open App Note

l5-schematic

gralco

The Librem 5 schematics, copper layers, assembly drawings, and BOMs (mainboard and USB-C board).

Components (92)

Reference	Value	Description
Q1-Q14,Q18	2SK3018	TRAN NMOS SW 0.9V DRIVE 50V UMT3
Q19	AP2302	TRANS MOSFET N-CH 16V 3.6A SOT-23
Q1602	MOSFET_P	TRAN PMOS POWER 79m OHM@-1.8V DRIVE -8V SOT23
U1	BD71837-24	IC POWER MANAGEMENT BUCK 8CH LDO 7CH -0.3-5.5V
U2	USB2642	IC USB 2.0 High Speed 2-Port Hub with SD Reader Controller
U3,U5,U185	NTBA104_XQFN12	IC Dual Supply Buffer 4BIT,Z IC Dual Supply Buffer 4BIT NTB0104GU12
U4,U12,U23,U38,U40,U41,U43,U44,U46,U48

l5-schematic schematic

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l5-schematic board

C1-C3,C6,C8,C19-C29,C31-C36,C38,C40,C42,C44,C48,C50-C53,C57,C58,C63,C64,C66,C71,C72,C75,C79-C82,C84-C91,C93-C95,C98-C115,C117-C164,C177-C200,C216,C218,C219,C221,C223-C226,C228,C230,C236,C243,C244,C254-C257,C259,C261-C268,C274,C275,C278,C291-C293,C295,C296,C298,C301,C302,C304,C307,C309,C314,C316-C318,C323,C325,C326,C328,C331-C334,C338-C340,C342-C359,C361,C362,C366-C374,C377,C379-C381,C384-C433,C436-C447,C451-C454,C501,C512,C514,C516,C517,C520,C522,C523,C534,C541,C545,C602-C604,C606,C607,C610,C611,C717,C728,C746,C758,C901,C1323,C2191,C4051	C0201	CAP CER 6.8PF 25V 10% NPO 0201,CAP CER 0.01uF 25V 20% X5R 0201,CAP CER 0.1uF 6V3 20% X5R 0201,CAP CER 10PF 6V3 20% NPO 0201,CAP CER 120PF 25V 10% NPO 0201,CAP CER 180PF 6V3 20% NPO 0201,CAP CER 18PF 25V 20% NPO 0201,CAP CER 1uF 6V3 20% X5R 0201,CAP CER 56pF 50Vdc 5% C0G C0201,Ceramic CAP 1nF 25 10% X5R 0201,Resistor Chip 0201 0R Ohm 1/16W 1% RALEC,Z CAP CER 1uF 6V3 20% X5R 0201,Z Resistor Chip 0201 0R Ohm 1/16W 1% RALEC

C4,C5,C9-C12,C30,C37,C39,C45-C47,C59-C62,C68-C70,C73,C74,C78,C92,C96,C97,C202-C205,C207-C210,C212-C215,C217,C222,C227,C229,C235,C237-C239,C241,C242,C249-C252,C260,C269,C272,C273,C276,C282,C286,C294,C297,C303,C310-C312,C315,C320,C321,C337,C341,C360,C365,C375,C376,C378,C382,C434,C435,C480,C513,C535,C542,C601,C605,C729,C737,C743,C747,C749-C751,C754,C755,C757,C759,C852,C1251	C0402	CAP CER 0.22uF 35V 20% X5R 0402,CAP CER 10uF 6V3 20% X5R 0402,CAP CER 2.2uF 35V 20% X5R 0402,CAP CER 4.7uF 6V3 20% X5R 0402

C7,C13-C18,C41,C43,C49,C54-C56,C65,C67,C76,C77,C83,C116,C165-C176,C201,C206,C211,C220,C231-C234,C240,C245-C248,C253,C258,C270,C271,C277,C279-C281,C283-C285,C287-C290,C299,C300,C305,C306,C308,C313,C319,C322,C324,C327,C329,C330,C335,C336,C363,C364,C383,C448-C450,C518,C519,C521,C526,C710,C722,C723,C725,C731,C732,C736,C738-C742,C744,C745,C752,C753,C760,C761,C769,C775	C0603	CAP CER 0.22uF 35V 20% X5R 0603,CAP CER 10uF 35V 20% X5R 0603,CAP CER 2.2uF 35V 20% X5R 0603,CAP CER 22uF 6V3 20% X5R 0603,CAP CER 4.7UF 6.3V 10% X5R 0603,Z CAP CER 22uF 6V3 20% X5R 0603

L1,L2,L7,L8,L10-L12,L14,L16-L18,L22-L24,L27,L31,L33,L37,L38,L40-L42,L44,L45,L47-L51,L54-L57,L60-L65,L72,L76,L77,L79,L80,L82	BEAD-0402	FB 120ohm@100MHz 100ohm@1GHz DCR0.13ohm 1.1A T:0.5mm,FB 3500ohm@100MHz 1600ohm@1GHz DCR1ohm 270mA T:0.5mm,Resistor Chip 0402 0.2 Ohm 1/16W 1% RALEC,Resistor Chip 0402 1 Ohm 1/16W 1% RALEC,Resistor Chip 0402 10 Ohm 1/16W 1% RALEC,Z FB 120ohm@100MHz 100ohm@1GHz DCR0.13ohm 1.1A T:0.5mm

L3,L13,L15,L19,L25,L26,L29,L30,L34,L35,L39,L43,L52,L68,L104,R136	BEAD-0201	22 nH Unshielded Thick Film Inductor 150 mA 1.9Ohm Max 0201 (0603 Metric),FB 240ohm@100MHz DCR0.41ohm 0.35A T:0.3mm,Resistor Chip 0201 0R Ohm 1/16W 1% RALEC,Z FB 240ohm@100MHz DCR0.41ohm 0.35A T:0.3mm

R1-R37,R40-R81,R83-R133,R135,R139,R141-R151,R153,R155-R166,R169-R179,R181,R185-R194,R196-R248,R251-R256,R258,R288,R289,R301-R308,R409,R410,R416,R419,R503-R511,R525,R529,R545,R552,R554,R564,R565,R569,R573,R601-R603,R616,R617,R621,R624-R627,R803,R809-R812,R814-R816,R825,R827-R840,R902-R904,R933,R934,R940,R941,R1903,R2101	RES_2	Resistor Chip 0201 0 Ohm 1/20W 1% RALEC,Resistor Chip 0201 0 Ohm 1/20W 1% RALEC,Resistor Chip 0201 0R Ohm 1/16W 1% RALEC,Resistor Chip 0201 1.5K Ohm 1/16W 1% RALEC,Resistor Chip 0201 100K Ohm 1/16W 1% RALEC,Resistor Chip 0201 100R Ohm 1/16W 1% RALEC,Resistor Chip 0201 10K Ohm 1/16W 1% RALEC,Resistor Chip 0201 10R Ohm 1/16W 1% RALEC,Resistor Chip 0201 12K Ohm 1/16W 1% RALEC,Resistor Chip 0201 150R Ohm 1/16W 1% RALEC,Resistor Chip 0201 15K Ohm 1/16W 1% RALEC,Resistor Chip 0201 16K Ohm 1/16W 1% RALEC,Resistor Chip 0201 1K Ohm 1/16W 1% RALEC,Resistor Chip 0201 1M Ohm 1/16W 1% RALEC,Resistor Chip 0201 1M Ohm 1/20W 1% RALEC,Resistor Chip 0201 2.2K Ohm 1/16W 1% RALEC,Resistor Chip 0201 200R Ohm 1/16W 1% RALEC,Resistor Chip 0201 240R Ohm 1/16W 1% RALEC,Resistor Chip 0201 27K Ohm 1/16W 1% RALEC,Resistor Chip 0201 30.1K Ohm 1/16W 1% RALEC,Resistor Chip 0201 33R Ohm 1/16W 1% RALEC,Resistor Chip 0201 4.7K Ohm 1/16W 1% RALEC,Resistor Chip 0201 470K Ohm 1/16W 1% RALEC,Resistor Chip 0201 47K Ohm 1/16W 1% RALEC,Resistor Chip 0201 499 Ohm 1/16W 1% RALEC,Resistor Chip 0201 5.23K Ohm 1/16W 1% RALEC,Resistor Chip 0201 560K Ohm 1/16W 1% RALEC,Z Resistor Chip 0201 0R Ohm 1/16W 1% RALEC,Z Resistor Chip 0201 10K Ohm 1/16W 1% RALEC