Monolithic Power Systems Inc. MP2013AGQ-Z

Overview

MP2013AGQ-Z from Monolithic Power Systems is a 40V-input, 150mA low-quiescent-current linear regulator in QFN8 (3mm×3mm) package with fixed 3.3V output, ±2% accuracy, 620mV dropout at full load, and integrated thermal shutdown and current limiting. It powers ultra-low-power microcontrollers in battery-backed industrial sensors and automotive body electronics where input voltage varies from 4.3V to 40V.

For engineers reviewing the MP2013AGQ-Z datasheet, MP2013AGQ-Z pinout, MP2013AGQ-Z application, or MP2013AGQ-Z equivalent, key selection criteria include its 3.3µA quiescent current at no load, stability with ≥0.47μF ceramic output capacitor, EN pin logic-level enable control, and operation across –40°C to +125°C junction temperature.

Technical Context

The MP2013AGQ-Z implements a PMOS pass transistor architecture enabling low dropout and reverse-voltage protection via external diode. Its feedback loop regulates the FB pin to 1.215V with 50nA typical input bias, supporting both fixed-output (3.3V) and adjustable configurations via external resistor divider.

Enable functionality uses asymmetric thresholds: EN rising threshold is 1.48V (typ), falling threshold is 1.26V (typ), providing 200mV hysteresis to prevent chatter during slow-rising supply rails. Shutdown reduces supply current to 3µA (max), and thermal shutdown activates at 165°C (typ) with 20°C hysteresis.

Key Specifications

Pinout & Package

MP2013AGQ-Z is housed in a thermally enhanced QFN8 (3mm×3mm, 0.65mm pitch) package with exposed thermal pad. The pad must be soldered to a dedicated ground plane for effective heat dissipation and electrical grounding.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TPS7B8133QDGNRQ1 and ADM7172ACPZ-3.3-R7, MP2013AGQ-Z uniquely balances ultra-low IQ, 40V input capability, and industrial-grade temperature range without automotive qualification overhead or excessive cost.

Availability

MP2013AGQ-Z is available at Aetrix Electronics and suitable for industrial sensor nodes, automotive body controllers, and portable medical monitors requiring stable component supply across extended temperature and long-lifecycle deployments.

Supply support for MP2013AGQ-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.

The MP2013A product line targets ultra-low-power, wide-input linear regulation for battery-backed and automotive systems, emphasizing quiescent current optimization and ruggedized operation without external protection components.

FAQ

What is the minimum input voltage required for MP2013AGQ-Z to regulate 3.3V output at 150mA?

The maximum dropout voltage is 620mV at 150mA load. Therefore, the minimum input voltage is 3.3V + 0.62V = 3.92V. Operation below this voltage results in unregulated output. The device remains functional down to 2.5V input but cannot sustain 3.3V output under load below 3.92V.

Can MP2013AGQ-Z be used with an input voltage exceeding 40V, such as during automotive load dump?

No. The absolute maximum input voltage is +42V, but continuous operation above 40V violates the recommended operating condition and risks permanent damage. For 12V automotive systems, external TVS clamping is required to limit transients to ≤40V before the IN pin.

Is an external feedforward capacitor required for stable operation?

No. The MP2013AGQ-Z is stable with only a ≥0.47μF ceramic output capacitor. A 22nF feedforward capacitor across the upper feedback resistor (R1) is optional and improves high-frequency PSRR and noise performance-particularly beneficial in ADC reference applications-but not needed for basic regulation stability.

How does the EN pin behave during power-up with a slowly ramping supply?

The EN pin has 200mV hysteresis between rising (1.48V typ) and falling (1.26V typ) thresholds. This prevents oscillation if VIN ramps slowly. When VIN reaches ~1.48V, the regulator enables; if VIN later dips to ~1.26V, it shuts down cleanly-ensuring glitch-free startup in systems with soft-start supplies or weak batteries.

Does MP2013AGQ-Z require a minimum load current to maintain regulation?

No. The device regulates accurately from zero load to 150mA. Ground current increases with load (e.g., 3.3µA at 0mA → 50µA at 150mA), but output voltage remains within ±2% across the full load range, including no-load conditions.

What is the thermal performance difference between QFN6 and QFN8 packages?

QFN8 (3mm×3mm) has θJA = 48°C/W versus QFN6 (2mm×2mm) at 80°C/W. At 150mA and 12V dropout (1.8W dissipation), QFN8 junction rise is ~86°C above ambient, while QFN6 rises ~144°C-making QFN8 essential for high-ambient or high-power applications. Both require exposed-pad grounding for rated performance.