Monolithic Power Systems Inc. MP2013AGQ-P

Overview

MP2013AGQ-P 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 may reach 36V.

For engineers reviewing the MP2013AGQ-P datasheet, MP2013AGQ-P pinout, MP2013AGQ-P application, or MP2013AGQ-P equivalent, key selection criteria include its 3.3µA quiescent current at no load, stable operation with ≥0.47μF ceramic output capacitor, EN pin logic-level enable control, and FB pin accessibility for optional output adjustment.

Technical Context

The MP2013AGQ-P uses a PMOS pass transistor architecture enabling low dropout and reverse-voltage blocking via its intrinsic body diode-though external protection is recommended when V_OUT > V_IN. Its feedback loop regulates the FB node to 1.215V with ±2% tolerance, supporting both fixed-output (3.3V) and adjustable configurations via external resistor divider.

Internal protection includes foldback current limiting (180–400mA trip range) and thermal shutdown at 150°C with 20°C hysteresis. The device operates across –40°C to +125°C junction temperature and maintains stability with minimal 0.47μF X5R/X7R ceramic output capacitance.

Key Specifications

Pinout & Package

MP2013AGQ-P 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 LDO applications.

Compared with TPS7B6733QPWPRQ1 and ADM7172ACPZ-3.3-R7, MP2013AGQ-P uniquely balances automotive-compatible voltage rating, enable functionality, FB accessibility for field tuning, and sub-4µA quiescent current - making it optimal for cost-sensitive industrial and Tier-2 automotive designs requiring flexibility and longevity.

Availability

MP2013AGQ-P is available at Aetrix Electronics and suitable for automotive body electronics, industrial wireless sensors, portable medical monitors, and smart energy meters requiring stable component supply with long lifecycle support.

Supply support for MP2013AGQ-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 across Asia and North America and global distribution.

The MP2013A product line delivers ultra-low-I_Q linear regulators for battery-critical and high-input-voltage applications - targeting automotive, industrial, and portable equipment where efficiency, reliability, and small footprint are essential.

FAQ

What is the minimum input voltage required for MP2013AGQ-P to regulate 3.3V output?

The MP2013AGQ-P requires VIN ≥ VOUT + VDROPOUT. With a typical dropout of 620mV at 150mA, the minimum functional input is 3.92V. At lighter loads, dropout decreases - e.g., ~350mV at 10mA - allowing regulation down to ~3.65V. Below 2.5V, the device ceases regulation entirely per absolute maximum ratings.

Can MP2013AGQ-P be used with an output capacitor smaller than 1µF?

Yes - MP2013AGQ-P is stable with ceramic output capacitors as low as 0.47µF (X5R/X7R dielectric), unlike many legacy LDOs requiring ≥1µF. This reduces board area and cost while maintaining phase margin >60° across temperature and load. Avoid Y5V or Z5U types due to capacitance drift.

Does MP2013AGQ-P support reverse-voltage protection?

No - the internal PMOS pass transistor has a body diode that conducts from OUT to IN if VOUT > VIN. During backup-battery scenarios or hot-swap events, this can cause destructive reverse current. An external Schottky diode (anode to IN, cathode to VIN supply) or ideal diode controller is required for robust reverse-voltage blocking.

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

The EN pin has asymmetric thresholds: rising threshold is 1.48V typical, falling threshold is 1.26V typical (200mV hysteresis). This prevents chatter during slow-rising inputs. When EN is pulled below 1.26V, the device enters shutdown with <3µA supply current. Connecting EN directly to VIN provides automatic turn-on above 2.5V.

Is the FB pin accessible on the fixed-output MP2013AGQ-P variant?

Yes - the FB pin remains fully functional on MP2013AGQ-P despite its factory-trimmed 3.3V output. It is internally biased to 1.215V and can be overdriven with an external resistor divider to adjust output voltage from 1.215V to 15V, enabling field reconfiguration without changing BOM.

What thermal performance can be expected with standard 2-layer PCB layout?

On a 2-layer board with 1in² copper pour connected to the exposed pad, θJA is ~75°C/W. At 150mA and 12V input (8.7W dissipation), junction temperature rise would be ~650°C - exceeding limits. A 4-layer board with internal ground planes and ≥2in² thermal pad is required; per datasheet, θJA = 48°C/W on JEDEC JESD51-7 4-layer test board.

Does MP2013AGQ-P require an input capacitor?

Yes - a minimum 1µF X5R/X7R ceramic capacitor is required between IN and GND, placed within 5mm of the pin. This stabilizes input impedance, filters high-frequency noise, and supplies peak current during load transients. Larger values (up to 10µF) improve line transient response but are not mandatory for basic regulation.