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IP2736U_EF

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by Ray

INJOINIC USB PD, QFN-24-EP(4x4). Datasheet-verified pinout, KiCad symbol/footprint/3D.

componentpower management (pmic)ip2736u_ef
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3D Model

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Symbol & Footprint

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Datasheet

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Contents

README

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IP2736U_EF

INJOINIC · USB PD · QFN-24-EP(4x4)

IP2736U_EF from INJOINIC, 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 VCC power_out Internal LDO power output rail. Requires a 2.2uF external bypass capacitor to GND.
2 CMPV passive Optocoupler feedback loop voltage compensation node. Connects to the RC compensation network for the voltage loop.
3 CMPI/SDA bidirectional Muxed pin: optocoupler feedback loop current compensation node, or I2C bus data (SDA). Function depends on selected control mode.
4 SCL bidirectional I2C bus clock. Can be reconfigured as general-purpose I/O GPIO3.
5 FB output Feedback loop drive output. Drives the external optocoupler / PWM controller feedback network for regulating output voltage.
6 GPIO1 bidirectional General-purpose I/O 1. Configurable as ADC input.
7 GPIO0 bidirectional General-purpose I/O 0. Configurable as ADC input.
8 NC unconnected No connection. Leave floating.
9 NC unconnected No connection. Leave floating.
10 CSN input Low-side current-sense negative input. Connects to the ground-side terminal of the current-sense resistor (typically ~5 mOhm).
11 CSP input Low-side current-sense positive input. Connects to the high-side terminal of the current-sense resistor for output current measurement.
12 GPIO11 bidirectional General-purpose I/O 11.
13 GPIO10 bidirectional General-purpose I/O 10.
14 CC2 bidirectional USB Type-C Configuration Channel 2. Used for Type-C cable orientation, attach detection, and PD BMC communication. 20V high-voltage tolerant.
15 DP bidirectional USB D+ data line. Used for BC1.2/QC/AFC/FCP/SCP protocol handshakes. Configurable as UART_TX, UART_RX, or GPIO. 20V high-voltage tolerant.
16 DM bidirectional USB D- data line. Used for BC1.2/QC/AFC/FCP/SCP protocol handshakes. Configurable as UART_TX, UART_RX, or GPIO. 20V high-voltage tolerant.
17 CC1 bidirectional USB Type-C Configuration Channel 1. Used for Type-C cable orientation, attach detection, and PD BMC communication. 20V high-voltage tolerant.
18 GND power_in Ground reference for the IC.
19 NTC input Temperature ADC input for NTC thermistor (recommended 10kOhm, B=3380K). Configurable internal pull-up current source; can be reused as general-purpose I/O.
20 VOUT2 input Power-path 2 output voltage detection pin. Senses the output rail on the second power path.
21 VOUT2G output Power-path 2 external NMOS gate driver. Controls the second power-path pass NMOS (Vds >= 30V recommended).
22 VOUT1 input Power-path 1 output voltage detection pin. Senses the output rail on the first power path.
23 VOUT1G output Power-path 1 external NMOS gate driver. Controls the first power-path pass NMOS (Vds >= 30V recommended).
24 VIN power_in Main chip power input from the adapter/converter output (typically 3.3V-5V from LDO for EPR28V modes, or from VBUS via drop).
25 EPAD power_in Exposed thermal pad on package bottom. Must be soldered to the PCB ground plane for electrical ground and thermal dissipation.

Key specifications

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

CAD (KiCad official)

  • Symbol: IP2736U_EF
  • 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: INJOINIC datasheet (20 pp, sha256 96dad82baf2d1887, 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