Monolithic Power Systems Inc. MP2015AGQ-P

Overview

MP2015AGQ-P from Monolithic Power Systems is a 24V-input, 150mA low-dropout linear regulator with 3.3µA quiescent current, ±2% output voltage accuracy, and 700mV dropout at full load-designed for battery-powered microcontrollers and portable equipment requiring stable low-power biasing under wide input conditions.

For engineers reviewing the MP2015AGQ-P datasheet, MP2015AGQ-P pinout, MP2015AGQ-P application, or MP2015AGQ-P equivalent, this device supports fixed 3.3V and adjustable (1.215V–15V) outputs in QFN-8 package, with EN control, thermal shutdown, and current limiting-critical for ultra-low-power system power management.

Technical Context

The MP2015AGQ-P implements a PMOS pass transistor architecture enabling low dropout and reverse-voltage protection awareness. Its feedback loop references a precision 1.215V internal bandgap, supporting external resistor-divider programming for adjustable output versions or direct fixed-output regulation.

It integrates active EN control with 1.32V–1.64V rising threshold and 1.1V–1.42V falling hysteresis, plus thermal shutdown at 150°C with 20°C hysteresis. The device operates across –40°C to +125°C junction temperature and requires only ≥0.47µF ceramic output capacitance for stability.

Key Specifications

Pinout & Package

MP2015AGQ-P is housed in a thermally enhanced QFN-8 (3mm × 3mm) package with exposed pad tied to GND for optimal heat dissipation and EMI reduction. Pin 1 is marked by a dot or notch per JEDEC MO-229 VEEC-2 standard.

Key Features

Applications

Equivalent & Alternatives

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

Compared with XC6210B332MR-G, MP2015AGQ-P adds EN control and thermal protection essential for autonomous battery systems; versus ADM7172ACPZ-3.3-R7, it delivers 8× lower IQ and optimized cost/performance for sub-200mA applications.

Availability

MP2015AGQ-P is available at Aetrix Electronics and suitable for wearable health monitors, industrial wireless sensor nodes, smart meter RTC modules, and portable medical infusion pump controllers requiring stable component supply across extended temperature and long-life battery operation.

Supply support for MP2015AGQ-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 MP2015A product line targets ultra-low-power battery-operated systems, delivering high-voltage input capability and nanoamp-level quiescent current without sacrificing protection or accuracy-enabling next-generation energy-harvesting and maintenance-free edge devices.

FAQ

What is the minimum input voltage required for MP2015AGQ-P to regulate 3.3V output?

The MP2015AGQ-P requires a minimum input voltage of 4.0V to maintain 3.3V regulation at 150mA load, based on its 700mV typical dropout voltage. At lighter loads, regulation is possible down to 3.3V + VDROPOUT(min), which drops to ~600mV at 1mA, allowing operation from 3.9V.

Can MP2015AGQ-P be used with an output capacitor smaller than 1µF?

Yes-the MP2015AGQ-P is stable with ceramic output capacitors as low as 0.47µF, per datasheet specification. Using values below 1µF is acceptable for space-constrained designs, though transient response degrades slightly; X5R/X7R dielectrics are mandatory for stable capacitance across temperature.

Does MP2015AGQ-P include reverse-voltage protection?

No-MP2015AGQ-P lacks integrated reverse-voltage protection due to its PMOS pass element body diode. If output voltage may exceed input (e.g., backup battery scenarios), an external Schottky diode must be placed in series with the input to block reverse current and prevent device damage.

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

The EN pin has 1.32V–1.64V rising threshold and 1.1V–1.42V falling threshold, providing 200–300mV hysteresis. This ensures glitch-free startup and reliable shutdown during slow-ramping supplies or brownouts, eliminating unintended toggling near the enable threshold.

Is the exposed thermal pad electrically isolated or must it be grounded?

The exposed pad is electrically connected to GND and must be soldered to a dedicated PCB ground plane. It serves both as the primary thermal conduction path (θJC = 11°C/W) and as part of the return current path-floating or unconnected pads cause thermal runaway and regulation failure.

What is the maximum allowable power dissipation for MP2015AGQ-P at 85°C ambient?

With θJA = 48°C/W and TJ(MAX) = 125°C, maximum continuous power dissipation at 85°C ambient is (125 − 85) / 48 = 0.83W. Derating is required above 85°C; actual dissipation depends on VIN–VOUT differential and load current-e.g., at VIN = 12V, VOUT = 3.3V, IOUT = 150mA, PD = 1.3W exceeds limit and requires heatsinking or airflow.

Can MP2015AGQ-P be used in adjustable-output configuration despite being a fixed-3.3V variant?

Yes-the FB pin remains accessible on MP2015AGQ-P. While factory-trimmed for 3.3V, external resistors can override the internal divider to set any output from 1.215V to 15V; however, accuracy degrades to ±4% when modifying the feedback network, per datasheet guidance.