Monolithic Power Systems Inc. EV8772-Q-00A

Overview

EV8772-Q-00A from Monolithic Power Systems is an evaluation board for the MP8772GQ synchronous step-down converter IC, designed to deliver 12A continuous output at 1V from a 4.5V–17V input. It implements constant-on-time control, features integrated 16mΩ/5.5mΩ MOSFETs, 700kHz switching, and full protection (SCP/OCP/UVP/thermal shutdown). The board validates high-efficiency power delivery in compact, high-current point-of-load applications such as security cameras and digital set-top boxes.

For engineers reviewing the EV8772-Q-00A datasheet, EV8772-Q-00A pinout, EV8772-Q-00A application, or EV8772-Q-00A equivalent, this board enables rapid validation of MP8772GQ performance-including load/line regulation, startup/shutdown sequencing, soft-start programmability, and short-circuit recovery-under real-world thermal and transient conditions with minimal external components.

Technical Context

The EV8772-Q-00A implements the MP8772GQ's constant-on-time (COT) control architecture, enabling sub-10µs transient response and eliminating loop compensation design. Its layout integrates low-DCR (1.5mΩ) 0.56µH power inductor and six 22µF X5R ceramic output capacitors to minimize voltage droop during 0–12A load steps.

Power sequencing is supported via dedicated EN and PG pins, with pre-biased startup and hiccup-mode over-current protection. Input ripple suppression uses 0.1µF X7R bypass caps and 56pF C0G timing capacitor, while thermal management relies on the QFN-16 (3mm×3mm) IC's exposed pad soldered to a 4-layer PCB with internal copper planes.

Key Specifications

Availability

EV8772-Q-00A is available at Aetrix Electronics and suitable for security camera power design, digital set-top box PoL validation, and flat-panel display DC-DC qualification requiring stable component supply and repeatable lab evaluation.

Supply support for EV8772-Q-00A 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 core expertise in DC-DC conversion, LED drivers, and motor control solutions.

The MP8772 product line targets high-current, space-constrained point-of-load applications demanding fast transient response and high efficiency at 1V output - optimized for modern SoC and FPGA core rails.

FAQ

What input voltage range is validated on the EV8772-Q-00A?

The board is tested and characterized across 4.5V to 17V input, with published efficiency, line regulation, and thermal data at 5V, 12V, and 17V. Operation below 4.5V is not supported due to MP8772GQ's under-voltage lockout threshold.

Can the output voltage be adjusted, and what is the minimum achievable value?

Yes - VOUT is set by resistor divider R1/R2 (20kΩ/30kΩ) to 1V, but the MP8772GQ supports adjustment down to 0.6V using external feedback resistors. The board's layout includes test points and footprint options for alternative resistor values.

How is power sequencing implemented on this evaluation board?

Sequencing uses the MP8772GQ's dedicated EN and PG pins: EN accepts 0–5V logic-level control (ON >1.2V, OFF <0.9V); PG asserts high when VOUT is within ±5% regulation. Both signals are routed to test points and 0.1" headers for integration into system-level sequencing controllers.

What thermal performance can be expected at full 12A load?

At VIN=12V, VOUT=1V, and TA=25°C, the MP8772GQ junction temperature rises ~45°C above ambient per thermal imaging. The board's 4-layer stack-up with internal ground/power planes and exposed-pad soldering ensures reliable operation without forced airflow.

Does the board support pre-biased output startup?

Yes - the MP8772GQ inherently supports pre-biased startup, and the EV8772-Q-00A demonstrates clean turn-on without output voltage undershoot or oscillation when VOUT is initially held at 1V prior to EN assertion.

Are all external components on the board RoHS-compliant and lead-free?

Yes - all bill-of-materials components, including Murata GRM-series capacitors, Yageo resistors, and Würth 744355256 inductor, meet RoHS Directive 2011/65/EU and MPS green policy requirements. No exemptions are used.