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STUSB4700QTR

Public Made by Adom

by adom

STMicroelectronics AC-DC Controllers and Regulators, QFN-24-EP(4x4). Datasheet-verified pinout, KiCad symbol/footprint/3D.

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3D Model

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Symbol & Footprint

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PCB Footprint

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Datasheet

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Contents

README

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STUSB4700QTR

STMicroelectronics · AC-DC Controllers and Regulators · QFN-24-EP(4x4)

STUSB4700QTR from STMicroelectronics, 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 NC unconnected Ground reference channel 1. Not connected internally, but the datasheet directs it to be tied to ground.
2 CC1 bidirectional Type-C configuration channel 1 (HV analog I/O). Connects to Type-C receptacle pin A5 for cable attach detection, orientation, and BMC PD signaling. Robust to short-to-VBUS up to 22 V.
3 VCONN power_out 5 V power source for VCONN supply to an active Type-C cable/plug. Sourced through internal switch with OVP and OCP.
4 CC2 bidirectional Type-C configuration channel 2 (HV analog I/O). Connects to Type-C receptacle pin B5 for cable attach detection, orientation, and BMC PD signaling. Robust to short-to-VBUS up to 22 V.
5 NC unconnected Ground reference channel 2. Not connected internally, but the datasheet directs it to be tied to ground.
6 RESET input Digital reset input (active high). Asserting places the device in reset.
7 SCL input I2C clock input from the host master. Requires an external pull-up to the I2C bus supply.
8 SDA bidirectional I2C data line, active-low open-drain bidirectional. Requires an external pull-up to the I2C bus supply.
9 ALERT# output I2C interrupt / alert to host, active-low open-drain. Requires an external pull-up.
10 GND power_in Device ground reference.
11 GPIO1 output General-purpose I/O #1, open-drain. Function is configurable through NVM/registers.
12 GPIO0 output General-purpose I/O #0, open-drain. Function is configurable through NVM/registers.
13 VVAR_ADDR0 bidirectional Analog I/O sampled at start-up to set the I2C device address bit 0 (variable voltage output). Configures slave address at boot.
14 GPIO2 output General-purpose I/O #2, open-drain. Function is configurable through NVM/registers.
15 GPIO3 output General-purpose I/O #3, open-drain. Function is configurable through NVM/registers.
16 GPIO4 output General-purpose I/O #4, open-drain. Function is configurable through NVM/registers.
17 A_B_SIDE output Cable orientation indication, active-low open-drain. Drives an external USB SuperSpeed mux select signal.
18 VBUS_SENSE input High-voltage analog input for VBUS voltage monitoring and internal discharge path. Connect to the VBUS rail (up to 28 V).
19 VBUS_DISCH output External VBUS discharge path control, high-voltage open-drain, active-low.
20 VBUS_EN_SRC output VBUS source power-path enable, high-voltage open-drain, active-low. Drives an external switch or DC-DC enable; requires an external pull-up.
21 VREG_1V2 power_out 1.2 V internal LDO regulator output. Requires a ~1 uF decoupling capacitor to GND.
22 VSYS power_in Low-voltage power supply from system (VSYS = 3.0 V to 5.5 V). Tie to GND if not used.
23 VREG_2V7 power_out 2.7 V internal LDO regulator output. Requires a ~1 uF decoupling capacitor to GND.
24 VDD power_in High-voltage main power supply from USB power line (VDD = 4.1 V to 22 V). Fed from VBUS on the system side.
EP EP power_in Exposed thermal pad on the package underside; internally connected to ground. Must be soldered to the PCB ground plane for electrical return and thermal dissipation.

Key specifications

Parameter Value
Manufacturer STMicroelectronics
Package QFN-24-EP(4x4)
Category PMIC
Pins 25

Ordering variants

Same part, different packaging or reel option.

  • STUSB4700QTR
  • STUSB4700QTRYQTR

CAD (KiCad official)

  • Symbol: STUSB4700QTR
  • Footprint: Package_DFN_QFN:QFN-24-1EP_4x4mm_P0.5mm_EP2.7x2.7mm
  • 3D model: QFN-24-EP(4x4) (KiCad packages3D, STEP)

3D model downloads

Two STEP files. Same geometry, different body top:

File Size Use it when
stusb4700qtr.step 277 KB You want the bare part, or you mark your own boards.
stusb4700qtr-etched.step 2.7 MB You want the part with STUSB4700QTR already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 671 faces against 158 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: STMicroelectronics datasheet (43 pp, sha256 246b86806a90a975, retrieved 2026-08-17, tier: manufacturer)
  • 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