Monolithic Power Systems Inc. MP2013GQ-33-P

Overview

MP2013GQ-33-P from Monolithic Power Systems is a fixed-output 3.3V, 150mA low-quiescent-current linear regulator with 2.5V–40V input range, 740mV dropout at full load, ±2% output accuracy, and thermal shutdown protection. It operates in industrial and automotive battery-powered systems where ultra-low standby power and high input voltage tolerance are required.

For engineers reviewing the MP2013GQ-33-P datasheet, MP2013GQ-33-P pinout, MP2013GQ-33-P application, or MP2013GQ-33-P equivalent, key selection criteria include quiescent current (4.4µA typ. at light load), dropout behavior under 150mA, FB pin bias current (0.98–1.52µA), thermal shutdown threshold (150°C), and QFN8 package thermal resistance (θJA = 48°C/W).

Technical Context

The MP2013GQ-33-P uses a PMOS pass transistor architecture enabling low dropout and reverse-voltage blocking via its intrinsic body diode-though external diode protection is recommended when output may exceed input. Its feedback loop references a precision 1.215V internal bandgap, delivering 3.3V output via integrated resistor divider (R1_IN = 1.72MΩ, R2_IN = 1MΩ).

Thermal regulation is implemented via a dedicated junction sensor with 20°C hysteresis; current limiting activates at ~270mA peak to protect against overload. The device achieves stability with ≥0.47µF ceramic output capacitance and requires no ESR tuning-enabling compact, low-BOM-count designs for space-constrained embedded nodes.

Key Specifications

Pinout & Package

MP2013GQ-33-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 solid 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 linear regulator applications.

Compared with TPS7B6733QPWPRQ1, MP2013GQ-33-P delivers 3.4× lower quiescent current and 360mV lower dropout-critical for battery longevity and low-input-voltage headroom-but lacks AEC-Q100 certification. Versus NCP1117ST33T3G, it offers superior thermal performance (48 vs. 65°C/W) and 1,350× lower I_Q, enabling new classes of energy-harvesting and long-life deployments.

Availability

MP2013GQ-33-P is available at Aetrix Electronics and suitable for automotive body electronics, industrial wireless sensor networks, portable medical devices, and railway telematics requiring stable component supply across extended temperature and voltage ranges.

Supply support for MP2013GQ-33-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 MP2013 series was developed specifically for ultra-low-power, high-input-voltage linear regulation in battery-backed and automotive systems-emphasizing quiescent current minimization, thermal resilience, and minimal external component count.

FAQ

What is the maximum continuous output current for MP2013GQ-33-P at 25°C ambient?

The MP2013GQ-33-P is rated for 150mA continuous output current. At 25°C ambient with proper PCB thermal design (4-layer board, ≥100mm² GND copper under exposed pad), it can sustain this load with junction temperature below 125°C. Derating is required above 25°C ambient per θ_JA = 48°C/W.

Can MP2013GQ-33-P be used with input voltages below 2.5V?

No. The absolute minimum input voltage is 2.5V per datasheet specifications. Operation below this level is not guaranteed and may result in loss of regulation, increased dropout, or undefined behavior. For sub-2.5V inputs, consider a different regulator family such as MPS MP2004x series.

Is an external feedforward capacitor required for stable operation?

No. The MP2013GQ-33-P is stable with only a ≥0.47µF ceramic output capacitor and does not require a feedforward capacitor. That capacitor is optional and used solely to reduce output noise in high-resolution ADC applications-not for stability.

How should the exposed thermal pad be connected on the PCB?

The exposed pad must be soldered to a solid, low-impedance ground plane covering ≥100mm². It must be electrically and thermally connected to the GND pin (Pin 4) through multiple vias (≥4, 0.3mm diameter) to an inner-layer ground plane. Floating or undersized pads cause thermal runaway and premature shutdown.

Does MP2013GQ-33-P provide reverse-voltage protection?

No. The internal PMOS pass transistor has a body diode that conducts from OUT to IN when V_OUT > V_IN. This can cause destructive reverse current if the output is held high (e.g., by a backup battery) while input is disconnected or grounded. An external Schottky diode in series with IN is required for reverse-voltage protection.

What is the FB pin current specification for MP2013GQ-33-P?

The FB pin input current is specified as 0.98–1.52µA (typ./max) at V_FB = 1.3V and V_IN = 6V. In the fixed-3.3V version, FB is internally connected to the divider and must remain unconnected-no external loading is permitted.

Can MP2013GQ-33-P replace MP2013GQ-50 in a 5V design?

No. MP2013GQ-33-P is factory-trimmed for 3.3V output and cannot be reconfigured. The internal feedback divider (1.72MΩ/1MΩ) sets 3.3V precisely; substituting it for a 5V part would underpower downstream 5V logic and violate voltage tolerances. Use MP2013GQ-50 for 5V applications.