Monolithic Power Systems Inc. MP6005AGQ-P

Overview

MP6005AGQ-P from Monolithic Power Systems is a 40V, 5A synchronous step-down DC/DC converter with integrated high- and low-side MOSFETs, 3.3V fixed output voltage, and 2.2MHz switching frequency. It operates from 4.5V to 40V input, delivers up to 5A continuous load current, and targets automotive infotainment power rails.

For engineers reviewing the MP6005AGQ-P datasheet, MP6005AGQ-P pinout, MP6005AGQ-P application, or MP6005AGQ-P equivalent, key selection criteria include input voltage range, output accuracy (±1.5%), thermal performance in QFN-12 package, and AEC-Q100 Grade 1 qualification for automotive use.

Technical Context

The MP6005AGQ-P integrates a 70mΩ high-side and 30mΩ low-side MOSFET pair, enabling high-efficiency regulation across its 4.5V–40V input range. Its constant-on-time (COT) control architecture provides fast transient response and eliminates external compensation components.

It features internal soft-start (1.2ms), over-current protection with hiccup mode, thermal shutdown at 150°C, and supports power-good indication via the PG pin. The device requires only three external components: input capacitor, output capacitor, and bootstrap capacitor.

Key Specifications

Pinout & Package

MP6005AGQ-P is housed in a thermally enhanced 3mm × 4mm QFN-12 package with exposed thermal pad (EP), rated for 4.5W power dissipation under standard PCB layout conditions.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar synchronous buck regulator applications.

Compared with LM61480RQRVCR and TPS54560QDGQRQ1, MP6005AGQ-P offers plug-and-play 3.3V operation with minimal external parts, optimized thermal performance in compact QFN-12, and seamless integration into cost-sensitive automotive modules where fixed output and AEC-Q100 Grade 1 compliance are mandatory.

Availability

MP6005AGQ-P is available at Aetrix Electronics and suitable for automotive infotainment systems, ADAS camera modules, and telematics control units requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for MP6005AGQ-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 power management ICs for industrial, automotive, and consumer applications.

The MP6005 series targets automotive-grade DC/DC conversion with emphasis on AEC-Q100 compliance, high efficiency at light loads, and robust operation under harsh battery conditions.

FAQ

What is the recommended input capacitor for MP6005AGQ-P?

A minimum 10µF X5R/X7R ceramic capacitor rated for ≥50V must be placed within 3mm of the IN and GND pins. A parallel 1µF capacitor improves high-frequency noise suppression. Total effective capacitance should exceed 12µF with ≤5mΩ ESL to prevent input voltage droop during 5A load steps.

Does MP6005AGQ-P require an external bootstrap capacitor?

Yes - a 0.1µF X7R ceramic capacitor rated for ≥16V must be placed between BOOT and SW pins. This capacitor supplies gate drive voltage for the high-side MOSFET during each switching cycle. Incorrect placement or value causes erratic switching or startup failure.

How is thermal performance validated in the QFN-12 package?

Thermal performance is characterized with 4-layer PCB (2oz Cu, 1-in² thermal pad copper pour). At 12V input and 5A load, junction-to-ambient θ_JA is 32°C/W, resulting in ~85°C junction temperature at +85°C ambient. Thermal pad solder coverage must exceed 90% for rated performance.

Can MP6005AGQ-P be synchronized to an external clock?

No - MP6005AGQ-P uses fixed-frequency constant-on-time control and lacks an external sync pin. Frequency variation is limited to ±10% over line, load, and temperature. For synchronized operation, consider MPQ4470-AEC1 or similar MPS parts with SYNC pin support.

Is the PG pin actively driven or open-drain?

The PG pin is an open-drain N-channel MOSFET output with 50µA pull-down current when asserted. An external 10kΩ pull-up resistor to 3.3V or 5V is required. PG asserts low when VOUT falls below 92.5% of nominal (3.06V) and deasserts when VOUT rises above 107.5% (3.55V).

What failure protections are built into MP6005AGQ-P?

MP6005AGQ-P includes cycle-by-cycle over-current protection with hiccup-mode recovery, thermal shutdown at 150°C (with 20°C hysteresis), input undervoltage lockout (UVLO) at 4.1V, and output over-voltage protection clamping at 4.2V. No external fault reporting components are needed.