Monolithic Power Systems Inc. MPQ5068GQV-AEC1-P

Overview

MPQ5068GQV-AEC1-P from Monolithic Power Systems is an AEC-Q100 Grade 1 qualified hot-swap protection IC with integrated 7mΩ R_DS(ON) power MOSFET, adjustable 5–15A current limit, ±10% current monitor accuracy, and 200ns short-circuit response - deployed in automotive infotainment power rails to prevent inrush damage and downstream fault propagation.

For engineers reviewing the MPQ5068GQV-AEC1-P datasheet, MPQ5068GQV-AEC1-P pinout, MPQ5068GQV-AEC1-P application, or MPQ5068GQV-AEC1-P equivalent, key selection criteria include its QFN-22 (3mm×5mm) package thermal performance (θ_JA = 46°C/W), configurable auto-retry/latch-off fault recovery, and IMON-based real-time current monitoring for ASIL-B–aligned system diagnostics.

Technical Context

The MPQ5068GQV-AEC1-P implements a sense-FET–based current-limit architecture with external R_SET-programmable threshold (5–15A), dual-stage overcurrent protection (20μs primary + 200ns secondary at 25A), and a charge-pump–driven gate that sustains low R_DS(ON) across 6–28V input range. Its thermal shutdown triggers at 167°C with 28°C hysteresis and supports both auto-retry (via floating AUTO) and latch-off (via grounded AUTO) modes.

It integrates PG and FLTB open-drain status outputs with defined thresholds: PG asserts high only when V_FB > 0.6V, V_GS > 3V, and V_OUT > V_IN − 1V; FLTB pulls low within 20μs of OCP or thermal fault detection, or within 8μs during 25A short-circuit events. The IMON output delivers voltage proportional to load current with 100mV/A scaling using 10kΩ-to-ground resistor.

Key Specifications

Pinout & Package

MPQ5068GQV-AEC1-P uses a wettable-flank QFN-22 (3mm×5mm) package with exposed VIN pads (21,22) for thermal and electrical connection. Pin 1 is top-left corner (EN), with pins 13–20 dedicated to parallel VOUT connections to reduce trace resistance and improve current sharing.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar hot-swap protection applications.

Compared with TPS25982LQRVCRQ1 and NIS5135MN1TXG, MPQ5068GQV-AEC1-P uniquely combines AEC-Q100 Grade 1 qualification, integrated IMON telemetry, and dual-mode fault recovery in a thermally optimized QFN-22 package - making it the only option supporting ASIL-B–aligned diagnostics and adaptive power management in modern automotive ECUs.

Availability

MPQ5068GQV-AEC1-P is available at Aetrix Electronics and suitable for automotive infotainment, ADAS camera modules, and instrument cluster power distribution requiring stable component supply across extended temperature ranges (−40°C to +125°C).

Supply support for MPQ5068GQV-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 over 20 years of expertise in DC/DC converters, hot-swap controllers, and motor drivers.

The MPQ5068 belongs to MPS's AEC-Q100–qualified automotive power protection product line, engineered specifically for robust operation in harsh automotive environments including start-stop, load-dump, and reverse-battery conditions.

FAQ

What is the minimum soft-start time for MPQ5068GQV-AEC1-P?

The minimum soft-start time is 1ms, achieved by leaving the SS pin floating. In this configuration, a 4μA internal current source charges the MOSFET gate, resulting in a fixed 1ms V_OUT ramp-up. This is verified in bench testing per Rev. 1.0 datasheet Figure 4 and Section 14 "Soft Start (SS)".

How does the MPQ5068GQV-AEC1-P detect a damaged MOSFET?

During startup, if V_OUT exceeds V_IN − 1V before the MOSFET is fully enhanced, the device interprets this as a shorted pass FET. It immediately drives FLTB low and holds the MOSFET off. Recovery occurs only after V_OUT falls ≤ V_IN − 1V, as specified in Section 15 "Damaged MOSFET Detection".

Can the IMON output be used for closed-loop current regulation?

No - IMON is a unidirectional monitoring output only. It provides voltage proportional to load current (e.g., 100mV/A with 10kΩ to ground) but lacks feedback path to the control loop. Current regulation is handled internally via the ISET-programmed limit and gate drive circuitry, not via IMON.

What is the maximum continuous output current supported?

The device is rated for 8A continuous output current at T_A = 25°C with proper PCB thermal design (θ_JA = 46°C/W). At 125°C junction temperature, derating curves in Figure 8 show ~5.5A max continuous under same conditions. Absolute maximum pulsed current is 25A for 10ms.

Does the PG pin function when VIN = 0V?

Yes - PG remains logic low when VIN = 0V, even with an active external pull-up supply. This behavior is explicitly stated in Section 14: "PG starts to work when the pull-up supply is enabled, even if VIN and EN are still disabled", and confirmed by V_{OL_100} = 500–800mV test data in Table 2.

Is the QFN-22 package lead-free and RoHS-compliant?

Yes - all MPS parts, including MPQ5068GQV-AEC1-P, are lead-free, halogen-free, and fully compliant with the RoHS directive. This is confirmed in the "Green Status" footnote on page 2 of the datasheet and on the MPS Quality Assurance webpage.