Monolithic Power Systems Inc. MP2015AGG-33-Z

Overview

MP2015AGG-33-Z from Monolithic Power Systems is a fixed-output 3.3V, 150mA low-quiescent-current linear regulator in QFN-6 (2mm×2mm) package, designed for high-input-voltage battery systems (2.5V–24V VIN), featuring 3.3µA quiescent current, 700mV dropout at 150mA, ±2% output accuracy, and integrated thermal shutdown and current limiting.

For engineers reviewing the MP2015AGG-33-Z datasheet, MP2015AGG-33-Z pinout, MP2015AGG-33-Z application, or MP2015AGG-33-Z equivalent, key selection criteria include ultra-low IQ for battery longevity, dropout performance under 150mA load, stability with ≥0.47µF ceramic output capacitor, and compatibility with space-constrained PCB layouts requiring 2mm×2mm QFN footprint.

Technical Context

The MP2015AGG-33-Z implements a PMOS-based LDO architecture with internal feedback reference of 1.215V, enabling precise 3.3V regulation via factory-trimmed resistor divider. Its EN pin supports logic-controlled enable/disable with 1.32V–1.64V rising threshold and <0.1µA input current.

Thermal protection activates at 150°C junction temperature with 20°C hysteresis, and current limiting triggers at 160–400mA depending on VIN and load condition. The device operates across –40°C to +125°C ambient, with θJA = 80°C/W and maximum continuous power dissipation of 1.25W at TA = +25°C.

Key Specifications

Pinout & Package

MP2015AGG-33-Z uses a thermally enhanced QFN-6 (2mm×2mm) package with exposed thermal pad connected to GND. Pin 1 is marked by a dot or notch; the exposed pad must be soldered to a dedicated ground plane for optimal thermal performance (θJA = 80°C/W).

Key Features

Applications

Equivalent & Alternatives

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

Compared with XC6219B332MR-G, MP2015AGG-33-Z adds critical EN control and thermal safety; versus ADM7172ACPZ-3.3-R7, it trades 0.5% accuracy and 175mV dropout for 3.6× lower IQ and 40% smaller footprint-ideal for cost- and size-sensitive battery systems.

Availability

MP2015AGG-33-Z is available at Aetrix Electronics and suitable for wireless sensor networks, industrial PLC I/O modules, and portable medical monitors requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.

Supply support for MP2015AGG-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 in the US, China, and Taiwan, and global manufacturing partnerships.

The MP2015A series targets ultra-low-power battery-operated systems requiring wide-input-voltage LDOs with minimal quiescent current and robust thermal protection-optimized for IoT edge nodes and industrial sensing.

FAQ

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

The MP2015AGG-33-Z maintains regulation down to 2.5V input, but practical minimum depends on load: at 150mA, VIN must be ≥4.0V (3.3V + 700mV dropout). Below that, output voltage drops linearly with input.

Can the EN pin be left unconnected for automatic operation?

Yes-tying EN directly to IN enables automatic startup when input power is applied. The EN pin draws only 0.1µA, so this connection imposes negligible load and ensures immediate regulation upon power-up.

Is an external feed-forward capacitor required for stability?

No-the MP2015AGG-33-Z is stable with only a ≥0.47µF ceramic output capacitor. A 22nF feed-forward cap across R1 is optional and only recommended for ultra-low-noise ADC supplies-not for basic stability.

How does thermal shutdown behave during sustained overload?

When junction temperature reaches 150°C, the IC shuts down completely. After cooling by ≥20°C (to ≤130°C), it automatically restarts. This hiccup-mode cycling prevents permanent damage but reduces average output current during fault conditions.

What is the role of the NC pin in the QFN-6 package?

Pin 6 is unused and internally disconnected. It may be left floating or tied to GND to enhance thermal conduction from the die to the PCB ground plane-improving power handling and long-term reliability without electrical impact.

Does the ±2% output accuracy include line and load regulation effects?

Yes-the ±2% specification covers total error over full temperature (–40°C to +125°C), input voltage (4.3V–24V), and load (0–150mA) ranges, including initial tolerance, line regulation (0.005–0.015%/mA), and load regulation (0.01–0.05%/V).

Can this regulator safely drive capacitive loads exceeding 10µF?

Yes-while 0.47µF is the minimum for stability, the MP2015AGG-33-Z can drive larger capacitive loads (e.g., 10µF X7R) without oscillation. Larger values improve load transient response but increase inrush current during startup.