CYPD3175-24LQXQT from Infineon, in a QFN-24-EP(4x4). 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	P1.0	bidirectional	Port 1 pin 0. Multi-function GPIO: UART_1_CTS / I2C_SDA_1 / TCPWM_line_0 / programmable SCP/OCP/OVP/UVP fault indication.
2	P1.1	bidirectional	Port 1 pin 1. Multi-function GPIO: UART_1_RTS / I2C_SCL_1 / TCPWM_line_1 / programmable SCP/OCP/OVP/UVP fault indication.
3	VBUS_P_CTRL	output	Provider-side PMOS FET gate control, 30 V tolerant. Drive low to turn path ON, high to turn path OFF.
4	VBUS_C_CTRL	output	Consumer-side PMOS FET gate control, 30 V tolerant. Drive low to turn path ON, high-Z to turn path OFF.
5	DP1/P1.2	bidirectional	USB D+ (secondary) / Port 1 pin 2 GPIO. Also usable as UART_1_TX1 or as legacy charging detection (AFC/QC/BC 1.2/Apple).
6	DM1/P1.3	bidirectional	USB D- (secondary) / Port 1 pin 3 GPIO. Also usable as UART_1_RX1 or legacy charging detection (AFC/QC/BC 1.2/Apple).
7	SWD_DAT_0/P0.0	bidirectional	SWD data / Port 0 pin 0 GPIO with over-voltage tolerance. Also I2C_SDA_0 / TCPWM_line_0 / UART_0_CTS.
8	SWD_CLK_0/P0.1	bidirectional	SWD clock / Port 0 pin 1 GPIO with over-voltage tolerance. Also I2C_SCL_0 / TCPWM_line_1 / UART_0_RTS.
9	AXRES/P2.0	bidirectional	Alternate external reset (active low) / Port 2 pin 0 GPIO. Also TCPWM_line_0 or UART_0_TX0. Internally pulled up during POR I/O init.
10	P2.1	bidirectional	Port 2 pin 1 GPIO. Also TCPWM_line_1 or UART_0_RX0.
11	VBUS_C_MON_DISCHARGE	passive	Type-C VBUS monitor input with internal discharge FET. Connect to the consumer-side VBUS rail through the recommended divider network.
12	P2.2	bidirectional	Port 2 pin 2 GPIO with open drain and pull-up assist. Configurable as GPIO_20VT / I2C_SDA_1 / IEC. Tolerant to temporary short to VBUS.
13	P2.3	bidirectional	Port 2 pin 3 GPIO with open drain and pull-up assist. Configurable as GPIO_20VT / I2C_SCL_1 / IEC. Tolerant to temporary short to VBUS.
14	CC2	bidirectional	USB Type-C Configuration Channel 2 with dead-battery Rd bonding option and IEC ESD protection. Tolerant to temporary short to VBUS.
15	CC1	bidirectional	USB Type-C Configuration Channel 1 with dead-battery Rd bonding option and IEC ESD protection. Tolerant to temporary short to VBUS.
16	DM0/P3.1	bidirectional	USB D- (primary) / Port 3 pin 1 GPIO. Also UART_1_RX0 or legacy charging detection (AFC/QC/BC 1.2/Apple). IEC ESD protected.
17	DP0/P3.0	bidirectional	USB D+ (primary) / Port 3 pin 0 GPIO. Also UART_1_TX0 or legacy charging detection (AFC/QC/BC 1.2/Apple). IEC ESD protected.
18	VBUS_IN_DISCHARGE	power_in	VBUS power input, 3.0 V to 24.5 V, with internal discharge FET. Primary supply source when powered from Type-C VBUS.
19	CSP	input	Current-sense positive input for VBUS current monitoring via external shunt.
20	FB	input	Voltage regulation feedback pin used for direct-feedback DFP adapter voltage control.
21	CATH/COMP	bidirectional	Cathode of internal voltage-regulation shunt / loop compensation node for external analog applications.
22	GND	power_in	Device ground reference. Tie to system ground plane along with the exposed thermal pad.
23	VDDD	power_in	Digital supply input, 2.7 V to 5.5 V. When VBUS_IN_DISCHARGE is the primary supply, VDDD is regulated internally to 3.3 V and requires only a 1 µF decoupling capacitor.
24	VCCD	power_out	1.8 V regulated core-logic supply output. Requires a 1 µF decoupling capacitor. Not intended to power external circuitry.
25	EPAD	power_in	Exposed thermal pad on package underside. Connect to ground plane for thermal and electrical grounding.

Key specifications

Parameter	Value
Manufacturer	Infineon
Package	QFN-24-EP(4x4)
Category	Interface
Pins	25

Ordering variants

Same part, different packaging or reel option.

CYPD3175-24LQXQT
CYPD3174-16SXQ

CAD (KiCad official)

Symbol: CYPD3175-24LQXQT
Footprint: Package_DFN_QFN:QFN-24-1EP_4x4mm_P0.5mm_EP2.7x2.7mm
3D model: QFN-24-EP(4x4) (KiCad packages3D, STEP)

Provenance

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

Datasheet: Infineon datasheet (37 pp, sha256 0be360796cb78e34, retrieved 2026-08-17, tier: lcsc)
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