Monolithic Power Systems Inc. MP87180GMJTH-P

Overview

MP87180GMJTH-P from Monolithic Power Systems is an 80A monolithic half-bridge DrMOS power stage with integrated high-side and low-side MOSFETs, gate drivers, Accu-Sense™ current sensing, temperature sensing, and Quiet Switcher™ technology. It operates from 3V–16V VIN, supports 5V PVCC, limits peak switching voltage to <2V above VIN, and delivers up to 80A continuous output in server core voltage regulation.

For engineers reviewing the MP87180GMJTH-P datasheet, MP87180GMJTH-P pinout, MP87180GMJTH-P application, or MP87180GMJTH-P equivalent, this device is selected for high-current, multi-phase buck converters where EMI reduction, layout insensitivity, accurate current monitoring, and thermal fault reporting are critical design requirements.

Technical Context

The MP87180GMJTH-P implements a monolithic half-bridge architecture with integrated power FETs and driver logic, enabling tri-state PWM control and diode emulation mode via zero-current detection (ZCD). Its Quiet Switcher™ feedback loop actively suppresses voltage ringing during fast switching up to 1.5MHz.

It features bidirectional current-sense output (IOUT) with 5μA/A gain and ±2% accuracy at 25°C, junction temperature sensing via TOUT/FLT (8mV/°C, 800mV offset), and dual-function fault reporting that pulls TOUT/FLT to 3.3V while encoding OC, OTP, or SW-to-PGND short events via PWM pin resistance.

Key Specifications

Pinout & Package

MP87180GMJTH-P is housed in a TLGA-41 package (5mm × 6mm), optimized for high-current power delivery with 10 PGND pins, 5 VIN pads, and thermally enhanced bottom-side copper exposure.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar high-current DrMOS applications.

Compared with TDA21472 and ISL99390, MP87180GMJTH-P uniquely combines 80A capability, 5V PVCC, monolithic temperature sensing, and Quiet Switcher™-enabling simpler, more robust, and thermally transparent VRM designs without external compensation or layout tuning.

Availability

MP87180GMJTH-P is available at Aetrix Electronics and suitable for server core voltage regulation, telecom baseband POL, and high-density power modules requiring stable component supply, long-term lifecycle assurance, and traceable sourcing.

Supply support for MP87180GMJTH-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, with over two decades of expertise in DC/DC conversion, motor control, and power modules.

The MP87180 belongs to MPS's Intelli-Phase™ DrMOS product line, engineered specifically for high-efficiency, high-current, multi-phase CPU/GPU VRMs in datacenter and networking infrastructure where thermal density, EMI compliance, and telemetry integration are critical.

FAQ

What is the purpose of the tri-state PWM input on MP87180GMJTH-P?

The tri-state PWM input enables diode emulation mode: when held within the 1.1V–2.1V window for ≥40ns, the high-side FET turns off and the low-side FET conducts until zero-current detection. This improves light-load efficiency by eliminating reverse recovery losses in synchronous rectification.

How does Quiet Switcher™ technology reduce EMI in MP87180GMJTH-P?

Quiet Switcher™ uses a proprietary monolithic feedback architecture to actively clamp voltage overshoot at the SW node, limiting peak switching voltage to <2V above VIN. This suppresses high-frequency ringing energy, reducing conducted and radiated EMI without requiring complex snubbers or layout iterations.

Can MP87180GMJTH-P operate without an external bootstrap capacitor?

No. The BST pin requires a 0.1µF–0.22µF ceramic capacitor connected between BST and PHASE to generate the floating gate drive voltage for the high-side MOSFET. Omitting this capacitor prevents high-side conduction and causes functional failure.

What is the recommended decoupling for the PVCC pins?

Each PVCC pin (pins 3 and 4) must be decoupled to AGND using a 1µF–10µF X7R ceramic capacitor placed adjacent to the pin. The AGND and PGND connections must be tied together at the CPVCC capacitor location to minimize ground bounce in the analog sensing path.

How is over-current protection implemented in MP87180GMJTH-P?

HS-FET over-current is detected cycle-by-cycle; ten consecutive faults trigger a latched shutdown with TOUT/FLT pulled to 3.3V. LS-FET negative current limit (–50A) operates without fault reporting and forces 200ns HS-FET on-time to clamp valley current, preventing shoot-through during light-load reverse conduction.

Is MP87180GMJTH-P RoHS-compliant and halogen-free?

Yes. MP87180GMJTH-P is lead-free, halogen-free, and fully compliant with the EU RoHS directive. Full green status documentation, including material declarations and test reports, is available on the Monolithic Power Systems website under Quality Assurance.

What thermal metrics define MP87180GMJTH-P's cooling requirements?

The TLGA-41 package has θJB = 2.5°C/W (junction-to-board) and θJC_TOP = 2.5°C/W (junction-to-case top). Effective thermal design requires ≥10 thermal vias under PGND pads, a solid inner-layer copper plane, and minimal thermal interface resistance to the PCB heatsink area.