Monolithic Power Systems Inc. MPQ2013AGQ-33-Z

Overview

MPQ2013AGQ-33-Z from Monolithic Power Systems is a 40V-input, 3.3V fixed-output AEC-Q100 Grade 1 linear regulator in QFN-8 (3mm×3mm) package, delivering up to 150mA with 3.3µA quiescent current and 620mV dropout at full load. It operates across –40°C to +150°C junction temperature and targets always-on automotive subsystems and ultra-low-power microcontrollers powered from 12V/24V battery rails.

For engineers reviewing the MPQ2013AGQ-33-Z datasheet, MPQ2013AGQ-33-Z pinout, MPQ2013AGQ-33-Z application, or MPQ2013AGQ-33-Z equivalent, key selection criteria include its AEC-Q100 qualification, ±2% output accuracy over temperature, thermal shutdown at 150°C, and compatibility with low-ESR ceramic capacitors ≥0.47μF for stability in space-constrained automotive modules.

Technical Context

The MPQ2013AGQ-33-Z implements a PMOS pass transistor architecture enabling low dropout and reverse-voltage protection via external diode. Its internal 1.215V reference feeds an error amplifier that regulates output by adjusting gate drive to maintain fixed 3.3V at the FB node-bypassed internally for fixed versions.

Control logic integrates EN pin thresholding (1.32–1.64V rising, 1.1–1.42V falling), current limiting (~270mA peak), and thermal shutdown with 20°C hysteresis. The device draws only 4.4–10µA ground current at light loads and remains stable without external compensation.

Key Specifications

Pinout & Package

MPQ2013AGQ-33-Z uses a thermally enhanced QFN-8 (3mm×3mm) package with exposed thermal pad. Pin 1 is marked by a dot or notch; the exposed pad must be soldered to a dedicated ground plane for thermal and electrical integrity.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar low-quiescent-current linear regulator applications.

Compared with TPS7B6733QPWPRQ1 and MCP1703T-3302E/MB, MPQ2013AGQ-33-Z uniquely balances ultra-low IQ (3.3µA), 40V input tolerance, AEC-Q100 Grade 1 compliance, and QFN-8 thermal performance-making it optimal for space- and power-constrained automotive ECUs.

Availability

MPQ2013AGQ-33-Z is available at Aetrix Electronics and suitable for automotive body control, industrial sensor nodes, telematics units, and portable medical diagnostics requiring stable component supply across extended temperature and long product lifecycles.

Supply support for MPQ2013AGQ-33-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 analog and power ICs, with design centers worldwide and manufacturing through trusted foundry partners.

The MPQ2013A product line delivers AEC-Q100-qualified linear regulators optimized for automotive and industrial systems demanding ultra-low quiescent current, wide input voltage range, and robust thermal protection in compact packages.

FAQ

What is the minimum input voltage required for regulation at 3.3V output?

The MPQ2013AGQ-33-Z requires VIN ≥ VOUT + VDROPOUT. With a typical dropout of 620mV at 150mA, the minimum functional input is 3.92V. At lighter loads (e.g., 1mA), dropout falls to ~700mV, so VIN ≥ 4.0V ensures reliable startup and regulation across temperature.

Can the MPQ2013AGQ-33-Z be used without an external output capacitor?

No. A minimum 0.47μF ceramic capacitor (X5R/X7R) is mandatory on the OUT pin for stability. Omitting it causes oscillation and potential damage. Larger values (e.g., 4.7μF) improve load transient response and reduce output ripple in noise-sensitive applications.

How does the EN pin behave during power-up and brown-out conditions?

The EN pin has asymmetric thresholds: rising enable occurs at 1.32–1.64V, while falling disable triggers at 1.1–1.42V. This 200–300mV hysteresis prevents chatter during slow-rising or noisy supply ramps. When EN is pulled low, IQ drops to <3µA and OUT is actively discharged.

Is external reverse-voltage protection required, and why?

Yes. The internal PMOS pass transistor includes a body diode that conducts from OUT to IN if VOUT > VIN (e.g., during backup battery hold-up). Since reverse current is unlimited, an external Schottky diode (cathode to IN, anode to GND) is recommended to prevent device damage and system malfunction.

What is the thermal resistance (θJA) of the QFN-8 package, and how does it affect power dissipation?

The QFN-8 package has θJA = 48°C/W on a 4-layer JEDEC PCB. At 150°C max junction and 25°C ambient, maximum continuous power dissipation is (150–25)/48 ≈ 2.6W. With 3.3V output and 40V input at 150mA, power dissipation is (40–3.3)×0.15 ≈ 5.5W - exceeding safe limits; thus, thermal design (copper area, airflow) is essential.

Does the MPQ2013AGQ-33-Z require external components for basic operation?

Only two external components are mandatory: a 1µF–10µF input ceramic capacitor and a ≥0.47μF output ceramic capacitor. The EN pin may be tied directly to IN for automatic startup. No external resistors or compensation networks are needed for the fixed 3.3V version.