Monolithic Power Systems Inc. MP2013GQ-Z

Overview

MP2013GQ-Z from Monolithic Power Systems is a 40V-input, 150mA low-dropout linear regulator with 3.2µA quiescent current, ±2% output voltage accuracy, and internal thermal shutdown-designed for high-voltage battery-powered systems such as automotive body electronics and industrial sensors. It supports fixed 3.3V output (as indicated by "-33" suffix in MP2013GQ-33 variant) and operates across –40°C to +125°C junction temperature.

For engineers reviewing the MP2013GQ-Z datasheet, MP2013GQ-Z pinout, MP2013GQ-Z application, or MP2013GQ-Z equivalent, key selection criteria include ultra-low IQ operation under light load, stable regulation with ≥0.47µF ceramic output capacitor, dropout voltage of 740mV at 150mA, and QFN8 (3mm×3mm) package compatibility with high-density PCB layouts.

Technical Context

The MP2013GQ-Z implements a PMOS pass transistor architecture enabling low dropout and reverse-voltage protection awareness. Its feedback loop references a precise 1.215V internal bandgap, allowing accurate output regulation via external resistor divider or factory-trimmed fixed-output configuration.

Thermal management relies on exposed-pad QFN8 packaging with θJA = 48°C/W and integrated thermal shutdown at 150°C (with 20°C hysteresis). Current limiting activates at ~270mA peak, exceeding the 150mA continuous rating to accommodate transient loads without latch-off.

Key Specifications

Pinout & Package

MP2013GQ-Z is housed in a thermally enhanced QFN8 (3mm×3mm) package with an exposed pad that must be soldered to a dedicated ground plane for optimal thermal performance and electrical stability.

Key Features

Applications

Equivalent & Alternatives

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

Compared with XC6210B332MR-G and ADM7172ACPZ-3.3-R7, MP2013GQ-Z uniquely balances 40V input resilience, sub-4µA quiescent draw, and integrated thermal recovery-making it optimal for harsh-environment battery systems where voltage margin and longevity are non-negotiable.

Availability

MP2013GQ-Z is available at Aetrix Electronics and suitable for automotive body electronics, industrial wireless sensors, portable medical diagnostics, and smart building occupancy detection requiring stable component supply across extended temperature and voltage ranges.

Supply support for MP2013GQ-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 MP2013 product line targets ultra-low-power, high-input-voltage linear regulation for battery-backed and automotive systems-emphasizing longevity, transient robustness, and minimal external component count.

FAQ

What is the maximum allowable input voltage for MP2013GQ-Z?

The absolute maximum input voltage is +42V, but the recommended operating range is 2.5V to 40V. Operation above 40V risks exceeding safe power dissipation limits in the QFN8 package, especially at elevated ambient temperatures. Sustained use at 42V requires derating based on θJA = 48°C/W and thermal pad layout.

Can MP2013GQ-Z be used with a 0.22µF output capacitor?

No. The datasheet specifies minimum 0.47µF ceramic capacitance for stability. Using 0.22µF violates phase margin requirements and may cause oscillation or poor load transient response. X5R/X7R dielectrics are mandatory; Y5V or Z5U types exhibit excessive capacitance loss over temperature and voltage.

Does MP2013GQ-Z require an input capacitor?

Yes. A minimum 1µF X5R or X7R ceramic capacitor must be placed between IN1 and GND, located within 2mm of the pins. This capacitor suppresses high-frequency noise and improves line transient response; omitting it risks instability during fast input voltage changes like load dump.

How does the thermal shutdown behave during overload?

When junction temperature reaches 150°C, the device shuts down output and holds off until temperature drops by ~20°C (hysteresis), then automatically resumes regulation. This cycle repeats if overload persists. Unlike latch-off protection, this allows self-recovery without external reset, simplifying system-level fault handling.

Is the FB pin accessible for external adjustment in MP2013GQ-Z?

No. MP2013GQ-Z is the fixed 3.3V output variant (as confirmed by MP2013GQ-33 ordering code); its FB node is internally connected to the resistive divider. External feedback is only supported on adjustable versions like MP2013GQ (no suffix) or MP2013GG. Attempting external resistor networks on MP2013GQ-Z will disrupt regulation.

What is the significance of the exposed thermal pad on the QFN8 package?

The exposed pad is electrically and thermally connected to GND and must be soldered to a solid copper pour on the PCB. It accounts for >80% of heat transfer from the die; omitting or undersizing the thermal land increases θJA by >20°C/W, risking premature thermal shutdown at 100mA load in still-air conditions.

Does MP2013GQ-Z include reverse-voltage protection?

No. Its PMOS pass transistor contains an intrinsic body diode that conducts from OUT to IN if VOUT > VIN (e.g., during backup battery hold-up). This uncontrolled current can exceed safe limits and damage the IC. An external Schottky diode in series with IN1 is required for reverse-voltage scenarios.