Monolithic Power Systems Inc. MPQ2013AGQ-18-P

Overview

MPQ2013AGQ-18-P from Monolithic Power Systems is a fixed-output 1.8 V, 150 mA AEC-Q100 Grade 1 linear regulator with 2.5–40 V input range, 3.3 µA quiescent current, 620 mV dropout at 150 mA, and ±2% output voltage accuracy in QFN-8 package. It powers ultra-low-power microcontrollers in automotive body electronics and battery-backed industrial sensors where wide VIN and low IQ are critical.

For engineers reviewing the MPQ2013AGQ-18-P datasheet, MPQ2013AGQ-18-P pinout, MPQ2013AGQ-18-P application, or MPQ2013AGQ-18-P equivalent, key selection criteria include AEC-Q100 qualification, thermal shutdown (150°C), EN threshold (1.26–1.48 V), FB reference (1.215 V), and compatibility with ≥0.47 µF ceramic output capacitors.

Technical Context

The MPQ2013AGQ-18-P uses a PMOS pass transistor architecture enabling low dropout and reverse-voltage protection awareness. Its internal feedback loop references a 1.215 V bandgap, delivering 1.8 V output via factory-trimmed resistors - eliminating external divider components while maintaining ±2% accuracy over –40°C to +125°C ambient.

Control logic integrates undervoltage lockout (UVLO) on the EN pin (1.26 V falling threshold), thermal shutdown with 20°C hysteresis, and current limiting (160–400 mA peak). The device operates only when EN is high and shuts down to <3 µA supply current when EN falls below threshold.

Key Specifications

Pinout & Package

MPQ2013AGQ-18-P is housed in a thermally enhanced QFN-8 (3 mm × 3 mm, 0.65 mm pitch) package with exposed thermal pad. Pin 1 is marked by a dot or chamfered corner; the exposed pad must be soldered to a PCB ground plane for thermal and electrical integrity.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar linear regulator applications.

Compared with MPQ2013AGG-18-P, the MPQ2013AGQ-18-P offers superior accuracy (±2% vs. ±4%) and thermal performance (θJA = 48°C/W), while the TPS7B8133QDGNRQ1 trades accuracy and configurability for marginally lower IQ - making the MPQ2013AGQ-18-P optimal for AEC-Q100-compliant, precision-sensitive automotive and industrial use cases.

Availability

MPQ2013AGQ-18-P is available at Aetrix Electronics and suitable for automotive body electronics, industrial battery-backed sensors, portable medical diagnostics, and smart meter backup power requiring stable component supply, AEC-Q100 compliance, and long-lifecycle support.

Supply support for MPQ2013AGQ-18-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 analog and power ICs, with design centers in the US, China, and Taiwan, and global manufacturing partnerships.

The MPQ2013A product line delivers ultra-low-IQ linear regulators for automotive and industrial applications demanding wide input range, AEC-Q100 qualification, and robust thermal protection - targeting power rails for MCUs, sensors, and communication interfaces in harsh environments.

FAQ

What is the maximum allowable input voltage for MPQ2013AGQ-18-P?

The absolute maximum input voltage is +42 V, but the recommended operating range is 2.5 V to 40 V. Exceeding 42 V risks permanent damage per Absolute Maximum Ratings. For automotive load-dump immunity, external TVS clamping is advised when transient spikes exceed 40 V.

Can MPQ2013AGQ-18-P operate with a 2.5 V input and deliver 1.8 V output?

Yes - its minimum dropout is 700 mV at 100 mA, so it regulates down to VIN = 2.5 V (2.5 V − 0.7 V = 1.8 V). At light loads, dropout drops further, enabling stable 1.8 V output even near the 2.5 V lower limit.

Is the FB pin used in the fixed-output MPQ2013AGQ-18-P variant?

No - the FB pin is internally connected to the trimmed feedback network and must be left floating. Unlike adjustable versions, no external resistor divider is required or supported; connecting FB externally may disrupt regulation or damage the internal reference.

How does thermal shutdown behave during sustained overload?

When junction temperature reaches 150°C, the IC shuts down completely, reducing supply current to <3 µA. After cooling by ≥20°C (hysteresis), it automatically restarts. This cycle prevents thermal runaway but is not intended for continuous operation - proper heatsinking or derating is required.

Does MPQ2013AGQ-18-P require an input capacitor?

Yes - a minimum 1 µF X5R or X7R ceramic capacitor must be placed between IN and GND, within 3 mm of the pin. Larger values (up to 10 µF) improve line-transient response and reduce input ripple coupling into the output.

What is the significance of the "-P" suffix in MPQ2013AGQ-18-P?

The "-P" denotes tape-and-reel packaging per MPS ordering conventions - indicating standard reel quantity (typically 3,000 pcs/reel) and RoHS-compliant, lead-free finish. It does not indicate a functional or electrical variant.

Is reverse-voltage protection built-in?

No - the internal PMOS pass transistor has a body diode that conducts from OUT to IN if VOUT > VIN. In backup-battery scenarios, this can cause destructive reverse current. An external Schottky diode on the IN rail is strongly recommended to block reverse conduction.