Infineon Technologies CYPD727268LQXQXQSA1

Overview

CYPD727268LQXQXQSA1 from Infineon is a dual-port USB-C Power Delivery and DC-DC controller IC with integrated 48-MHz Arm® Cortex®-M0 MCU, two buck-boost controllers (3.3–21.5 V output, 150–600 kHz switching), and full USB-PD 3.2/PPS support. It delivers programmable VBUS control, hardware-based OVP/OCP/UVP, and legacy charging protocol handling (QC4+, AFC, Apple 2.4A) for multi-port AC-DC adapters.

For engineers reviewing the CYPD727268LQXQXQSA1 datasheet, CYPD727268LQXQXQSA1 pinout, CYPD727268LQXQXQSA1 application, or CYPD727268LQXQXQSA1 equivalent, this device serves as a fully programmable, single-chip PD + DC-DC solution for high-density consumer chargers requiring dynamic load sharing, temperature-aware protection, and firmware-upgradable protocol stack.

Technical Context

The CYPD727268LQXQXQSA1 implements two independent USB-PD PHYs with BMC encoding/decoding, each paired with dedicated CC logic, VCONN power switches, and VBUS gate drivers. Its dual buck-boost subsystem operates in buck, boost, and buck-boost regions with cycle-by-cycle current sensing, slope compensation, and zero-crossing detection for stable regulation across 4–24 V input (40 V tolerant).

The integrated MCU subsystem runs at 48 MHz, executes user firmware from 128 KB flash (with 32 KB ROM for PD stack), and interfaces via four SCBs (I²C/SPI/UART/LIN), three 8-bit ADCs, and four 16-bit TCPWMs-enabling real-time system management including thermistor-based board temperature monitoring and adaptive PPS voltage/current stepping (20 mV / 50 mA).

Key Specifications

Pinout & Package

68-pin QFN package (8 mm × 8 mm, 0.4 mm pitch) with exposed thermal pad; designed for high-power density PCB layouts and thermal reliability in compact multi-port chargers.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar dual-port USB-C PD controller applications.

Compared with STUSB4760QTR and MPQ4282GQ-AEC1, CYPD727268LQXQXQSA1 uniquely integrates dual PD PHYs, two buck-boost controllers, and a user-programmable MCU in one package-enabling true single-chip dual-port PD+DC-DC functionality without external protocol or regulation ICs.

Availability

CYPD727268LQXQXQSA1 is available at Aetrix Electronics and suitable for cigarette lighter adapters, multi-port AC-DC chargers, USB-C docking stations, and portable power banks requiring stable component supply and long-term design-in support.

Supply support for CYPD727268LQXQXQSA1 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Infineon Technologies is a German semiconductor manufacturer specializing in power management, automotive ICs, and security solutions, with global R&D and manufacturing infrastructure.

CYPD727268LQXQXQSA1 belongs to the EZ-PD™ CCG7DC product line, engineered specifically for high-density, firmware-upgradable USB-C multi-port chargers requiring integrated PD protocol handling, DC-DC regulation, and system-level protection.

FAQ

Does CYPD727268LQXQXQSA1 support USB-PD 3.2 with Programmable Power Supply (PPS)?

Yes, it fully supports USB-PD 3.2 including PPS mode with 20-mV voltage steps and 50-mA current steps per port. The integrated Cortex-M0 executes the certified PD stack from ROM, and PPS regulation is implemented using dedicated error amplifiers and PWM controllers within each buck-boost subsystem.

What is the maximum input voltage tolerance and how is overvoltage protection implemented?

The device tolerates up to 40 V on VIN, with hardware-based overvoltage protection (OVP) triggered at 27.5 V (typical). OVP is implemented in analog circuitry independent of the MCU, ensuring sub-microsecond shutdown of VBUS FETs and discharge paths without firmware dependency.

Can the two buck-boost controllers operate with phase-shifted switching to reduce input ripple?

Yes, the device supports programmable phase shift between the two buck-boost controllers-configurable in 90° increments up to 180°-to minimize input capacitor RMS current and reduce EMI. This is controlled via dedicated registers accessible through the MCU's TCPWM peripherals.

Is external crystal required for USB-C timing compliance?

No external crystal is required. The device includes an integrated precision internal main oscillator (IMO) trimmed to ±1.5% accuracy over temperature and voltage, meeting USB-C BMC timing requirements. Optional external clock input is supported but not necessary for standard operation.