Monolithic Power Systems Inc. EV5016-QH-00B

Overview

EV5016-QH-00B from Monolithic Power Systems is an evaluation board for the MP5016H programmable current-limited protection switch, implementing reverse-current blocking, adjustable soft-start via DV/DT pin, 2.5A fixed current limit (ILIMIT floating), 26V absolute max input, and output overvoltage clamp with MODE-pin-selectable threshold. It supports USB Power Delivery and hot-swap applications with integrated 43mΩ FET and external N-channel MOSFET control.

For engineers reviewing the EV5016-QH-00B datasheet, EV5016-QH-00B pinout, EV5016-QH-00B application, or EV5016-QH-00B equivalent, this board enables rapid validation of MP5016H-based protection schemes in 2.7V–22V input systems requiring programmable current limiting, OVP clamping, and reverse-current isolation.

Technical Context

The EV5016-QH-00B implements the MP5016H's full protection architecture: input-to-output transient suppression, output-to-input reverse-current blocking via external NMOS gate drive, and slew-rate-controlled soft-start governed by DV/DT pin voltage and MODE pin logic state. The board configures the IC's 2.5A default current limit and selectable OVP thresholds (e.g., 5.85V, 6.5V, or 7.1V) using JP1 and R3.

It integrates a 10μF X5R ceramic output capacitor (C2A), 1μF input capacitor (C1A), IRFHS8342 30V/16mΩ QFN2×2 NMOS for reverse-blocking, and supports EN pin digital enable/disable with 2.0V turn-on threshold. Test conditions confirm stable operation at VIN=5V, TA=25°C, COUT=10μF.

Key Specifications

Availability

EV5016-QH-00B is available at Aetrix Electronics and suitable for USB Power Distribution, Hot-Swap subsystems, and SSD/HDD power-rail protection requiring stable component supply and fast-turn evaluation capability.

Supply support for EV5016-QH-00B 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 and North America and global manufacturing partnerships.

The MP5016H product line delivers highly integrated electronic fuse solutions for input/output protection in portable and infrastructure equipment, targeting robust transient immunity, programmable current limiting, and reverse-current isolation in space-constrained designs.

FAQ

What input voltage range does the EV5016-QH-00B support?

The board supports 2.7 V to 22 V DC input, matching the MP5016H IC's continuous operating range. Absolute maximum transient input is rated at 26 V per the IC datasheet, and the board layout maintains appropriate clearance and decoupling to sustain this rating during surge events.

How is current limit configured on this evaluation board?

Current limit defaults to 2.5 A when the ILIMIT pin is left floating. To adjust it between 0.7 A and 5 A, install a precision resistor (R1) between ILIMIT and GND per the formula R_ILIM = 12.5 mV / I_LIM; the board includes footprint and test points for R1 placement.

Does the EV5016-QH-00B provide reverse-current protection?

Yes - the board routes the MP5016H's CTRL output to drive the gate of U2 (IRFHS8342), an external 30 V/16 mΩ N-channel MOSFET placed between VOUT and load. When disabled or during output-overvoltage, CTRL pulls low to block reverse conduction from output to input.

Can the output overvoltage clamp threshold be changed?

Yes - the MODE pin selects one of three OVP thresholds (5.85 V, 6.5 V, or 7.1 V) via JP1 jumper position or R3 pull-up/down configuration. This allows alignment with downstream IC tolerances, such as USB 3.1 PD receivers or 5 V microcontroller rails.

What is the purpose of the DV/DT pin on this board?

The DV/DT pin sets output voltage slew rate during startup. With MODE pin configuration, it enables programmable soft-start - e.g., ~3.8 V/ms typical - preventing inrush current spikes that could trip upstream supplies or cause rail droop in shared power domains.

Is an enable function available on the EV5016-QH-00B?

Yes - the EN pin accepts a digital logic signal: >2.0 V enables the MP5016H, <1.6 V disables it. The board exposes EN via test point and supports external MCU or supervisor IC control, enabling power sequencing and fault-initiated shutdown.