Monolithic Power Systems Inc. MPQ2026AGRE-0000-AEC1-Z

Overview

MPQ2026AGRE-0000-AEC1-Z from Monolithic Power Systems is a dual-channel, AEC-Q100 Grade 1 qualified LDO regulator with integrated asynchronous pre-boost converter, I²C interface, and 8-bit ADC for real-time voltage/current monitoring. It delivers up to 300mA per LDO channel across 1V–13.6V output range, features 4A/40V internal MOSFET in the boost stage, operates from 3V–40V input, and supports cold-crank (3V) to load-dump (40V) automotive conditions - deployed in active antenna phantom power and ADAS camera power rails.

For engineers reviewing the MPQ2026AGRE-0000-AEC1-Z datasheet, MPQ2026AGRE-0000-AEC1-Z pinout, MPQ2026AGRE-0000-AEC1-Z application, or MPQ2026AGRE-0000-AEC1-Z equivalent, this device offers digitally configurable pre-boost (6.5V–15.9V, 400kHz/2.2MHz), dual LDOs with OTP-programmable settings, short-to-battery detection, thermal shutdown (170°C), and wettable-flank QFN-16 packaging for automotive-grade reliability and solder-joint inspection.

Technical Context

The MPQ2026A integrates an asynchronous boost pre-regulator with internal 4A/40V N-channel MOSFET and configurable switching frequency (400kHz or 2.2MHz), enabling stable LDO input under wide VIN transients. Its dual LDOs accept programmable reference inputs (ADJ1/ADJ2) and support tracking or independent regulation modes with over-temperature protection and soft-start on all outputs.

Digital control is implemented via I²C (400kHz clock, 0.4V VOL at 3mA) with address selection (ADD pin), fault reporting (/FT open-drain), and an 8-bit capacitive charge redistribution ADC multiplexed across VOUT1/VOUT2 and respective load currents. Configuration and calibration data are stored in multi-page one-time programmable (OTP) memory after bench validation.

Key Specifications

Pinout & Package

MPQ2026AGRE-0000-AEC1-Z is housed in a thermally enhanced QFN-16 (4mm × 4mm) package with exposed thermal pad connected to GND. The wettable flank feature enables reliable solder-joint inspection per automotive AEC-Q200 requirements.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar dual-LDO-with-pre-boost applications.

Compared with MPQ2026AGRE-0000-AEC1-Z, the MPQ2026B variant offers factory-configured lower LDO voltages ideal for digital subsystems, while the TPS653211AQPWPRQ1 trades integration for flexibility in high-current buck stages - neither matches the combined pre-boost + dual LDO + ADC + OTP capability in a single AEC-Q100 package.

Availability

MPQ2026AGRE-0000-AEC1-Z is available at Aetrix Electronics and suitable for automotive camera modules, active antenna systems, radar front-ends, and infotainment tuner supplies requiring stable component supply across extended temperature and transient conditions.

Supply support for MPQ2026AGRE-0000-AEC1-Z 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 applications, with emphasis on integration, efficiency, and reliability.

The MPQ2026A belongs to MPS's automotive-grade power management product line, designed specifically for ADAS, body electronics, and infotainment systems requiring AEC-Q100 qualification, diagnostic capability, and robust transient handling.

FAQ

What is the function of the /FT pin?

The /FT pin is an open-drain fault indicator that asserts low during thermal shutdown, LDO overcurrent, short-to-battery detection, or pre-boost UVLO. It requires an external pull-up resistor (e.g., 100kΩ to ≤5V) and provides 300mV max sink voltage at 4mA load. Its 40μs delay ensures glitch immunity during transient events.

Can the pre-boost and LDO outputs operate simultaneously?

Yes - the pre-boost and dual LDOs are fully independent and can operate concurrently. When VIN exceeds the pre-boost turn-on threshold (configurable 6.5V–15V), the boost stage disables automatically to minimize quiescent current, but remains ready to activate instantly if VIN drops below threshold.

How is output voltage configured without external resistors?

Output voltages for VOUT_BOOST, VOUT1, and VOUT2 are set digitally via I²C registers during evaluation, then permanently stored in multi-page OTP memory. No external resistor dividers are needed - configuration persists through power cycles and meets AEC-Q100 data retention requirements.

Does the ADC measure load current directly or infer it?

The 8-bit ADC directly measures load current using internal sense resistors in series with each LDO output path. It reports real-time IOUT1 and IOUT2 values alongside VOUT1 and VOUT2, enabling closed-loop current limiting and predictive fault detection before thermal shutdown occurs.

What thermal performance can be expected in a 4-layer PCB layout?

On a 4-layer 2oz copper EVQ2026A-R-00A reference board, θJC is 5.5°C/W (junction-to-case top). With proper thermal vias under the exposed pad connected to internal ground planes, case temperature rise is ≤0.3°C at 300mA per LDO and 1A boost load - well within AEC-Q100 Grade 1 limits.

Is the I²C interface compatible with standard 3.3V microcontrollers?

Yes - the SDA and SCL pins are 5V-tolerant with VIH ≥1.3V and VOL ≤0.4V at 3mA sink. They operate at standard 400kHz I²C speed and support repeated start/stop conditions. External pull-ups to 3.3V are fully compatible and commonly used in automotive MCU interfaces.

How does short-to-battery detection work during power-up?

During the turn-on sequence, the device monitors VOUT – VIN at startup. If the difference falls below –10mV (default) to –80mV (configurable), indicating a short between LDO output and battery, the /FT pin asserts and LDOs shut down within 15ms (default window) to prevent damage.