XPD977D30A from Shenzhen Fuman, in a QFN-32-EP(5x5). Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin	Name	Type	Function
1	VFB	input	System voltage feedback pin - connects to the AC-DC / DC-DC power stage feedback node so XPD977 can dynamically adjust output voltage.
2	IREF	passive	CC loop compensation pin. Recommended RC network R=10 kΩ, C=10 nF to GND. Leave floating if the CC function is not used.
3	CSN	input	Main current-sense negative input. Tie to GND if unused; must not be left floating.
4	CSP	input	Main current-sense positive input, across the 10 mΩ constant-current sense resistor R_S1. Tie to GND if unused; must not be left floating.
5	ISP2	input	Type-A2 port current-sense positive input, across the 5 mΩ R_S2 sense resistor.
6	ISP3	input	Type-A3 port current-sense positive input, across the 5 mΩ R_S3 sense resistor.
7	DP3	bidirectional	Type-A3 port USB D+ data line (BC1.2 / QC / FCP / AFC / Apple 2.4A handshaking).
8	LINK	bidirectional	XPD-LINK inter-chip communication bus. Pull to GND through R_LINK = 10 kΩ. Used to coordinate multi-chip charger designs.
9	DM3	bidirectional	Type-A3 port USB D- data line.
10	DIS	output	Gate control for external discharge NMOS transistor used to bleed VBUS down between transitions.
11	AISN	input	Interconnect current-sense negative input, used when linking to a non-XPD-series companion chip. Tie to GND if unused.
12	AISP	input	Interconnect current-sense positive input, used when linking to a non-XPD-series companion chip. Tie to GND if unused.
13	USBA3	power_out	Type-A3 port VBUS output rail (routes through external Type-A3 PMOS switch driven by GD3).
14	GD3	output	Gate-drive output for the external Type-A3 port PMOS pass switch. Requires a 47 nF C_GATE2 hold capacitor per spec table.
15	DP2	bidirectional	Type-A2 port USB D+ data line.
16	DM2	bidirectional	Type-A2 port USB D- data line.
17	USBA2	power_out	Type-A2 port VBUS output rail (routes through external Type-A2 PMOS switch driven by GD2).
18	GD2	output	Gate-drive output for the external Type-A2 port PMOS pass switch. Requires a 47 nF C_GATE1 hold capacitor per spec table.
19	CC1	bidirectional	USB Type-C CC1 configuration channel - orientation detect and PD BMC signalling. Rated to 26 V with internal OVP.
20	DP1	bidirectional	USB Type-C port data line (labelled DP1 on package; datasheet description reads 'Type-C 口数据端口 DM').
21	DM1	bidirectional	USB Type-C port data line (labelled DM1 on package; datasheet description reads 'Type-A 口数据端口 DP').
22	CC2	bidirectional	USB Type-C CC2 configuration channel - orientation detect and PD BMC signalling. Rated to 26 V with internal OVP.
23	VBUS	power_out	USB Type-C VBUS output rail. Pins 23/24/25 are internally tied - bulk decoupling C_VBUS 1-10 µF required. Rating: -0.3 to 26 V.
24	VBUS	power_out	USB Type-C VBUS output rail (tied to pins 23 and 25).
25	VBUS	power_out	USB Type-C VBUS output rail (tied to pins 23 and 24). Internal 10 mΩ VBUS switch and discharge path terminate here.
26	NC	unconnected	No connect - leave floating.
27	NC	unconnected	No connect - leave floating.
28	VPWR	power_in	Chip supply input. Operating range 3.3-21 V (abs max 26 V). Requires C_VPWR bulk cap 1-10 µF. Pins 28/29/30 are internally tied.
29	VPWR	power_in	Chip supply input (tied to pins 28 and 30). UVLO rising 3.3 V / falling 2.9 V.
30	VPWR	power_in	Chip supply input (tied to pins 28 and 29).
31	NC	unconnected	No connect - leave floating.
32	OPTO	output	Optocoupler driver output used to feed back the primary-side controller through R_FB1 in AC-DC applications.
33	EPAD	power_in	Exposed thermal pad on the QFN underside - die ground. Must be soldered to the PCB GND plane for both electrical return and thermal dissipation (θJA = 34 °C/W).

Key specifications

Parameter	Value
Manufacturer	Shenzhen Fuman
Package	QFN-32-EP(5x5)
Category	Interface
Pins	33

Ordering variants

Same part, different packaging or reel option.

XPD977D30A

CAD (KiCad official)

Symbol: XPD977D30A
Footprint: Package_DFN_QFN:QFN-32-1EP_5x5mm_P0.5mm_EP3.3x3.3mm
3D model: QFN-32-EP(5x5) (KiCad packages3D, STEP)

3D model downloads

Two STEP files. Same geometry, different body top:

File	Size	Use it when
`xpd977d30a.step`	346 KB	You want the bare part, or you mark your own boards.
`xpd977d30a-etched.step`	2.2 MB	You want the part with `XPD977D30A` already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 563 faces against 206 in the bare model. It survives export, section views, and rendering in any CAD tool, and it drops straight into KiCad or Fusion with no extra setup.

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

Datasheet: Shenzhen Fuman datasheet (19 pp, sha256 d7f28524b33b1f03, retrieved 2026-08-17, tier: lcsc)
Datasheet language: Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.
Extractor: ds2sf (Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate.
CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF