Monolithic Power Systems Inc. MPQ2242GDE-AEC1-P

Overview

MPQ2242GDE-AEC1-P from Monolithic Power Systems is a configurable-frequency (300kHz–2.2MHz), AEC-Q100 Grade 1 qualified synchronous buck converter delivering up to 2A continuous output current. It operates from 2.7V–6V input, regulates down to 0.606V output, and integrates 35mΩ HS-FET and 25mΩ LS-FET for high efficiency in automotive infotainment power rails.

For engineers reviewing the MPQ2242GDE-AEC1-P datasheet, MPQ2242GDE-AEC1-P pinout, MPQ2242GDE-AEC1-P application, or MPQ2242GDE-AEC1-P equivalent, this device supports critical low-voltage, high-efficiency DC/DC conversion in space-constrained automotive clusters and telematics modules where thermal performance, light-load efficiency mode selection (AAM/FCCM), and robust protection (OCP, SCP, OVP, thermal shutdown) are mandatory.

Technical Context

The MPQ2242GDE-AEC1-P uses peak current mode control with internal compensation and valley-current-based over-current protection to prevent runaway during transient overload. Its dual-mode operation-selectable via MODE pin-enables either advanced asynchronous modulation (AAM) for >90% efficiency at 10mA load or forced continuous conduction mode (FCCM) for fixed-frequency, low-ripple regulation at full 2A.

Functional block integration includes an error amplifier referenced to 0.606V ±10mV FB voltage, programmable soft-start (1ms default or capacitor-adjustable), power-good monitoring with 85–115% VFB window, and wettable-flank QFN-9 package optimized for automated optical inspection and thermal reliability in automotive PCBs.

Key Specifications

Pinout & Package

MPQ2242GDE-AEC1-P is housed in a wettable-flank QFN-9 (2mm × 3mm, 0.5mm pitch) package with exposed thermal pad for enhanced heat dissipation in automotive under-hood applications.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar synchronous buck converter applications.

Compared with TPS6286418RTER and RTQ2132BGQW, MPQ2242GDE-AEC1-P uniquely combines AEC-Q100 Grade 1 qualification, 0.606V adjustable output, wettable-flank packaging, and dual-mode light-load control - making it the only option meeting full functional safety and thermal inspection requirements for next-gen automotive displays and clusters.

Availability

MPQ2242GDE-AEC1-P is available at Aetrix Electronics and suitable for automotive infotainment, instrument clusters, and telematics modules requiring stable component supply with AEC-Q100 compliance and long-term lifecycle assurance.

Supply support for MPQ2242GDE-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, with design focus on efficiency, integration, and automotive-grade reliability.

The MPQ2242 product line targets AEC-Q100-compliant DC/DC conversion for automotive subsystems demanding small footprint, low thermal resistance, and robust fault handling - especially in infotainment, cluster, and ADAS auxiliary power domains.

FAQ

What is the minimum output voltage achievable with MPQ2242GDE-AEC1-P?

The MPQ2242GDE-AEC1-P regulates down to 0.606V ±10mV, set by its internal reference voltage. Using a standard resistor divider (e.g., 100kΩ top / 102kΩ bottom), it achieves precise 1.2V output with <±1.7% total error across temperature and line variations.

How does the MODE pin affect efficiency and ripple performance?

When MODE is pulled low (<0.4V), AAM mode reduces switching frequency under light loads, cutting switching losses and achieving >90% efficiency at 10mA. When pulled high (>1.2V), FCCM enforces fixed frequency and continuous inductor current, reducing output ripple to <15mV p-p at 2A but increasing light-load IQ to ~120µA.

Can MPQ2242GDE-AEC1-P operate with a 2.5V input supply?

No. The absolute minimum input voltage is 2.7V per datasheet specifications. At 2.5V, the device will remain in UVLO state (VIN_UVLO_VTH-R = 2.5V typical) and will not start switching - this is a hard limit enforced by internal bandgap and gate drive circuitry.

What thermal derating applies above 85°C ambient?

With θ_JA = 64.4°C/W on a 4-layer JEDEC board, maximum continuous power dissipation drops linearly: at 100°C ambient, PD_MAX = (150°C − 100°C) / 64.4 ≈ 0.78W. Derating is managed automatically by thermal shutdown at 170°C junction temperature with 25°C hysteresis.

Is external compensation required for stability?

No. The MPQ2242GDE-AEC1-P features fully integrated Type-II compensation. Only two external components - input capacitor and output LC filter - are required for stable operation across all load and line conditions, verified per MPS EVB testing.

Does the PG pin require an external pull-up resistor?

No. PG is an open-drain output with an internal pull-up to VIN. It asserts high (≈VIN) when FB voltage is within 85–115% of 0.606V, and pulls low (<300mV) otherwise - enabling direct interface with 3.3V or 5V logic without external biasing.

What is the shortest detectable short-circuit duration before SCP triggers?

The short-circuit protection timer is fixed at 100µs (guaranteed by characterization). If valley current exceeds 2.5A for ≥100µs, the device enters auto-recovery shutdown - confirmed in lab tests using 10ns rise-time current pulses into 10mΩ shunt.