Monolithic Power Systems Inc. MP5030GQH-Z

Overview

MP5030GQH-Z from Monolithic Power Systems is a USB charging port controller integrating a 3A current-limit switch and auto-detection circuitry for BC1.2, QC 3.0, and USB Type-C 5V/3A DFP modes. It features programmable 32mΩ R_DS(ON), ±8kV HBM ESD on DP/DM, and line drop compensation for stable 5V output under load. Used in AC/DC wall adapters and automotive cigarette lighter chargers.

For engineers reviewing the MP5030GQH-Z datasheet, MP5030GQH-Z pinout, MP5030GQH-Z application, or MP5030GQH-Z equivalent, key selection criteria include QC 3.0 voltage transition timing (20–60ms glitch), ADJ-controlled VOUT regulation accuracy (±0.1V at 5.15V default), hiccup-mode OCP recovery (2s off-time), and CC1/CC2 debounce thresholds (100–200ms).

Technical Context

The MP5030GQH-Z implements dual-stage UVLO (3.0V and 3.9V thresholds) with 880mV hysteresis for robust startup control and integrates a dedicated ADJ pin that sinks up to 500µA to regulate upstream DC/DC converters - enabling both 5V line-drop compensation (150–200mV at 2.4A) and smooth QC 3.0 voltage transitions (9V/12V in 200mV steps).

Its auto-detection logic supports five distinct charging protocols: BC1.2 DCP (DP/DM short ≤50Ω), 1.2V/1.2V mode (V_DP/DM = 1.2V ±0.1V), Divider mode (V_DP/DM = 2.7V ±0.15V), QC 3.0 (VDAT_REF = 0.3V, VSEL_REF = 2.0V), and Type-C DFP (CC1/CC2 Rd = 5.1kΩ detection with T_{CC_debounce} = 150ms).

Key Specifications

Pinout & Package

MP5030GQH-Z is housed in a QFN-10 (1.5mm × 2mm, 0.5mm pitch) package with wettable flanks and exposed thermal pad. The package supports high-density layout and efficient thermal dissipation in space-constrained USB power designs.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar USB charging port controller applications.

Compared with MP5031GQH-Z, MP5030GQH-Z provides identical QC 3.0/BC1.2/Type-C DFP functionality at lower cost and complexity, while TUSB3210IRHBR shifts system-level responsibility for current limiting and output regulation to external components - increasing BOM count and layout area.

Availability

MP5030GQH-Z is available at Aetrix Electronics and suitable for AC/DC wall adapters, automotive cigarette lighter chargers, and USB power banks requiring stable component supply, full production traceability, and long-term lifecycle support.

Supply support for MP5030GQH-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 mixed-signal ICs for power management, motor drive, and automotive applications.

The MP5030 belongs to MPS's USB Charging Port Controller product line, designed specifically to integrate BC1.2/QC/Type-C detection, current limiting, and output regulation into a single QFN-10 device for compact, cost-sensitive USB power delivery systems.

FAQ

What is the minimum input voltage required to enable the MP5030GQH-Z's current-limit switch?

The MP5030GQH-Z has a two-stage UVLO: the ADJ block activates at VIN ≥ 3.0V (±0.3V), but the power MOSFET only turns on above the second threshold of 3.9V (±0.2V). Below 3.9V, VOUT remains disabled even if ADJ is regulating - ensuring reliable startup only within its specified 3.6–14V operating range.

How does the MP5030GQH-Z achieve line drop compensation without an external op-amp?

Line drop compensation is implemented via the ADJ pin, which sinks a controlled current (up to 500µA) from the upstream DC/DC converter's FB node. At 2.4A load, this increases the converter's target output by 150–200mV - effectively offsetting IR drop across PCB traces while maintaining tight 5V regulation at the USB connector.

Can the MP5030GQH-Z support both QC 3.0 and USB Type-C simultaneously on the same port?

No - the MP5030GQH-Z operates in mutually exclusive modes: Type-C DFP mode requires CC1/CC2 detection and disables QC 3.0 data-line signaling, while QC 3.0 mode uses DP/DM handshaking and ignores CC pins. Designers must choose one protocol per port based on target device ecosystem.

What is the purpose of the TEST pin, and what happens if it is left unconnected?

The TEST pin must be connected to IN via a 100kΩ resistor to enable normal operation. If left floating, internal logic fails to initialize, preventing ADJ regulation, current limiting, and all auto-detection functions - resulting in no VOUT activation regardless of input voltage or CC/DP/DM states.

Does the MP5030GQH-Z provide reverse current blocking when VOUT > VIN?

No - the MP5030GQH-Z contains a single N-channel MOSFET configured as a high-side switch with no body-diode reversal blocking. When VOUT exceeds VIN (e.g., backfeed from a charged battery), current flows uncontrolled through the intrinsic MOSFET body diode. An external reverse-blocking diode or ideal diode controller is required for such topologies.

How does the hiccup-mode over-current protection recover after a fault?

When hiccup mode triggers (VOUT < 3.5V for 2ms), the MP5030GQH-Z disables the power MOSFET for 2 seconds, resets QC mode to 5V default, and then re-enables the switch. If the overload persists, it repeats the cycle; if removed, full 3A operation resumes immediately without manual reset or power cycle.

What is the maximum recommended ILIM resistor value for stable current limiting?

The ILIM resistor must be ≤2.2kΩ to ensure the current limit remains within specification across temperature. At 125°C, higher values cause drift beyond the ±6% accuracy window - e.g., a 2.4kΩ resistor yields 3.0A at 25°C but drops to 2.7A at 125°C, risking undershoot during peak loads.