Monolithic Power Systems Inc. MPQ4242GVE-0000-AEC1-P

Overview

MPQ4242GVE-0000-AEC1-P from Monolithic Power Systems is an AEC-Q100 Grade 1 qualified, fully integrated USB PD 3.0 sourcing solution with integrated 4-switch buck-boost converter and PD controller. It delivers up to 5A continuous output current across 3.3V–22.5V VOUT, supports PPS, QC 3.0, Huawei FCP, and BC1.2 charging protocols, and operates from 4.8V–36V VIN. It is designed for automotive USB-C power delivery ports requiring robust thermal management and dual-port power sharing.

For engineers reviewing the MPQ4242GVE-0000-AEC1-P datasheet, MPQ4242GVE-0000-AEC1-P pinout, MPQ4242GVE-0000-AEC1-P application in automotive USB-C PD sourcing, or MPQ4242GVE-0000-AEC1-P equivalent for AEC-Q100-compliant buck-boost PD controllers, this page provides verified technical context, validated pin functions, real-world efficiency curves, fault protection behavior, and OEM-grade supply chain support.

Technical Context

The MPQ4242 implements a synchronous 4-switch buck-boost topology with internal power switches (R_DS(ON) = 15–41.5 mΩ), configurable 250/420 kHz switching frequency with spread spectrum, and integrated USB PD 3.0 state machine supporting 7 PDOs and PPS. Its CC1/CC2 interface handles Type-C detection, VCONN control, and BMC physical layer signaling with 3.03–3.7 µs unit interval timing.

It integrates analog current sensing (ISNS+/ISNS−), I²C-configurable line drop compensation, dual NTC inputs for thermal derating, and hardware-based power sharing logic for coordinated operation with a second MPQ4242. Fault handling includes hiccup-mode OCP, ±112% OVP, VIN UVLO/OVP, and CCx/DP/DM short-to-VBUS protection.

Key Specifications

Pinout & Package

MPQ4242GVE-0000-AEC1-P is housed in a wettable-flank QFN-22 (4mm × 5mm) package optimized for automated optical inspection (AOI) and high-reliability automotive reflow. Thermal pad (Pin 1) requires direct connection to PGND plane with ≥6 thermal vias.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar USB PD sourcing applications.

Compared with MPQ4242GVE-0000-AEC1-P, the -0001 variant trades field-programmable flexibility for cost reduction in fixed-output applications, while the NCP81239 demands full system-level integration effort but offers maximum protocol customization.

Availability

MPQ4242GVE-0000-AEC1-P is available at Aetrix Electronics and suitable for automotive front-console charging ports, rear-seat entertainment hubs, telematics gateways, and ADAS camera power interfaces requiring stable component supply with AEC-Q100 qualification and long-term production continuity.

Supply support for MPQ4242GVE-0000-AEC1-P 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

Monolithic Power Systems (MPS) is a fabless semiconductor company specializing in high-performance power management ICs for automotive, industrial, and consumer markets, with over 20 years of DC/DC conversion expertise.

The MPQ4242 belongs to MPS's AEC-Q100-qualified automotive USB PD portfolio, engineered specifically for single-chip, high-reliability USB-C power sourcing in space-constrained vehicle interiors where thermal performance and protocol compliance are non-negotiable.

FAQ

What USB PD protocols does MPQ4242GVE-0000-AEC1-P support out-of-the-box?

It natively supports USB PD 3.0 with Programmable Power Supply (PPS), backward-compatible USB PD 2.0, Qualcomm Quick Charge 2.0/3.0, Huawei FCP, and Battery Charging Specification 1.2 (BC1.2) DCP modes including 3A divider and 1.2V/1.2V handshake-all implemented in hardware without external firmware.

How is the 5A output current rating validated under automotive temperature conditions?

The 5A rating is specified at T_A = 25°C with adequate PCB copper; derating begins at T_J > 125°C. Thermal shutdown triggers at 175°C with 20°C hysteresis, and the device maintains ≥4.5A output at T_A = 85°C on a 4-layer board with 2 oz copper and 6 thermal vias under 12V input.

Can MPQ4242GVE-0000-AEC1-P operate without an external microcontroller?

Yes-it contains a fully autonomous PD state machine and buck-boost controller. I²C is optional for advanced configuration (PDO editing, thermal thresholds, LED PWM), but default 60W operation (5V/9V/15V/20V) requires zero external firmware or host intervention.

What is the purpose of the POWER_SHARE1 and POWER_SHARE2 pins?

These are hardware arbitration inputs enabling peer-to-peer power coordination between two MPQ4242 devices. POWER_SHARE1 (active-low) and POWER_SHARE2 (active-high) allow dynamic redistribution of total system power budget without I²C communication or host CPU involvement.

Does MPQ4242GVE-0000-AEC1-P support VCONN power for electronically marked cables?

Yes-it provides configurable 100mW or 1W VCONN output via GPIO2 control. The 1W mode meets USB-IF requirements for active cables and is enabled by setting GPIO2 to "011b" through I²C, with built-in over-current protection.

How does the line drop compensation function improve real-world USB-C performance?

It injects programmable voltage boost (150–600 mV at 3A) into the feedback loop to counteract IR drop across PCB traces and connectors. This ensures VBUS remains within ±1% of target (e.g., 20.0V ± 0.2V) at the connector-even with 150 mΩ total path resistance-critical for PPS-sensitive devices.

Is the QFN-22 package with wettable flanks compatible with standard automotive SMT assembly processes?

Yes-the 4mm × 5mm QFN-22 with wettable flanks meets IPC-A-610 Class 3 requirements. The exposed thermal pad and flank geometry enable reliable AOI inspection and void-free solder joint formation using standard lead-free reflow profiles (peak 260°C).