Monolithic Power Systems Inc. MPQ20056GJ-33-AEC1-P

Overview

MPQ20056GJ-33-AEC1-P from Monolithic Power Systems is an AEC-Q100 Grade 1 qualified low-noise, high-PSRR linear regulator delivering up to 250mA output current with 100mV dropout at full load, 150μA ground current, and fixed 3.3V output. It operates from 2.5V–5.5V input and targets power rails for automotive infotainment processors, ADAS sensor interfaces, and telematics modules requiring stable low-noise biasing.

For engineers reviewing the MPQ20056GJ-33-AEC1-P datasheet, MPQ20056GJ-33-AEC1-P pinout, MPQ20056GJ-33-AEC1-P application, or MPQ20056GJ-33-AEC1-P equivalent, key selection criteria include automotive-grade thermal shutdown (150°C), PSRR of 63dB @1kHz, 13μVRMS output noise (10Hz–100kHz), and TSOT23-5 package compatibility with space-constrained PCB layouts.

Technical Context

The MPQ20056GJ-33-AEC1-P integrates a PMOS pass transistor enabling ultra-low dropout and minimal ground current across temperature. Its internal error amplifier drives the pass element with feedback referenced to a precision 0.8V bandgap, supporting tight output accuracy (±2% at 25°C, ±3% over –40°C to +125°C).

It implements dual protection: current limiting (350–850mA short-circuit limit) and thermal shutdown with 20°C hysteresis. The EN pin provides logic-level control (1.5V turn-on threshold), and UVLO activates below 1.95V input to prevent unstable regulation during brownout conditions.

Key Specifications

Pinout & Package

MPQ20056GJ-33-AEC1-P uses the TSOT23-5 surface-mount package (1.0mm height, 2.9mm × 1.6mm footprint), optimized for automotive PCBs with limited board area and high-reliability solder joints.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar low-noise, automotive-grade LDO applications.

Compared with TPS7B8233QPWPRQ1 and NCP163AMX330TBG, MPQ20056GJ-33-AEC1-P delivers superior noise performance (13μVRMS vs. ≥20μVRMS) and tighter thermal specification (Grade 1 vs. Grade 2), making it optimal for safety-critical ADAS and infotainment subsystems demanding lowest possible supply-induced jitter.

Availability

MPQ20056GJ-33-AEC1-P is available at Aetrix Electronics and suitable for automotive infotainment systems, ADAS camera modules, and telematics control units requiring stable component supply with full AEC-Q100 traceability and long-term lifecycle support.

Supply support for MPQ20056GJ-33-AEC1-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, North America, and Europe.

The MPQ20056 product line delivers automotive-qualified linear regulators targeting noise-sensitive, thermally constrained applications in modern vehicles - emphasizing low dropout, ultra-low noise, and robust protection features.

FAQ

What is the maximum allowable input voltage for MPQ20056GJ-33-AEC1-P?

The absolute maximum input voltage is +6V relative to GND, but the recommended operating range is 2.5V to 5.5V. Exceeding 5.5V risks violating safe operating area limits and may trigger internal protection circuits. For automotive battery applications, this range accommodates cold-crank (down to ~6V) and load-dump transients only when used with external clamping.

Does MPQ20056GJ-33-AEC1-P require an external feedback resistor network?

No. The "-33" suffix denotes a factory-trimmed fixed 3.3V output version; the FB pin is internally connected and must be left unconnected. External resistors are required only for adjustable-output variants (e.g., MPQ20056GJ-AEC1), not this part number.

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

The EN pin has a 1.5V turn-on threshold and 0.4V turn-off threshold with hysteresis. When pulled high, startup time is 100–450μs (depending on output voltage); when pulled low, output disables within 1μs and ground current drops to 0.1μA. Floating EN is prohibited and will cause undefined behavior.

Can MPQ20056GJ-33-AEC1-P drive a 250mA load continuously at 125°C ambient?

No. At TA = 125°C, thermal limits restrict continuous output current due to θJA = 220°C/W. With 5.5V input and 3.3V output, power dissipation is 550mW; junction temperature would exceed 150°C. Derating to ≤120mA is required for reliable operation at max ambient.

Is the TSOT23-5 package lead-free and RoHS-compliant?

Yes. MPQ20056GJ-33-AEC1-P uses lead-free matte tin plating and complies with EU RoHS Directive 2011/65/EU and China RoHS. All MPS products are halogen-free and meet JEDEC J-STD-020 moisture sensitivity level 1 (MSL-1) for unlimited floor life.

What failure modes are protected against by the internal circuitry?

The device integrates short-circuit current limiting (350–850mA), thermal shutdown (150°C with 20°C hysteresis), input under-voltage lockout (UVLO below 1.95V), and reverse-voltage blocking via external diode recommendation. It does not include reverse-polarity or overvoltage input protection - those require external components.

How does output capacitor ESR affect transient response?

Lower ESR improves load-step recovery time and reduces peak undershoot/overshoot. The MPQ20056GJ-33-AEC1-P is optimized for ceramic capacitors (typ. <10mΩ ESR). Using high-ESR tantalum or aluminum electrolytics degrades transient response and may cause instability; 4.7μF X5R/X7R MLCC is the validated solution.