Monolithic Power Systems Inc. MP5016HGQH-P

Overview

MP5016HGQH-P from Monolithic Power Systems is a programmable current-limit switch with integrated 43mΩ N-channel power MOSFET, over-voltage clamp (adjustable 3.9V–21.8V), reverse-current blocking gate driver, and soft-start control via DV/DT pin. It operates from 2.7V to 22V input, delivers up to 5A load current, and protects downstream circuits during hot-swap events in USB PD and SSD power rails.

For engineers reviewing the MP5016HGQH-P datasheet, MP5016HGQH-P pinout, MP5016HGQH-P application, or MP5016HGQH-P equivalent, key selection criteria include adjustable OVP threshold selection via MODE pin, ILIMIT resistor-programmable current limit (0.7–5A), fast 1µs short-circuit response, thermal shutdown at 175°C with 50°C hysteresis, and QFN-10 (1.5mm×2mm) package compatibility with high-density PCB layouts.

Technical Context

The MP5016HGQH-P integrates a precision current-sense amplifier, fast OVP comparator with sub-1µs response, and charge-pump-based gate driver for external reverse-blocking MOSFET control. Its internal logic enables hiccup-mode OCP (2ms on / 700ms off) after sustained overcurrent and foldback current limiting above 11V V_DS and 110°C junction temperature.

Soft-start slew rate is programmable via external capacitor on DV/DT pin and MODE pin state (0.4–4.8 V/ms), while OVP clamp voltage is set by MODE digital level (5.75V or 15.2V), floating MODE (no clamp), or resistor-divider (3.9V–21.8V). UVLO threshold is 2.53V with 200mV hysteresis.

Key Specifications

Pinout & Package

MP5016HGQH-P is housed in a thermally enhanced QFN-10 package (1.5mm × 2mm, 0.5mm pitch) with exposed thermal pad. The package supports high-current routing and efficient heat dissipation in space-constrained applications such as M.2 SSD modules and USB-C power delivery boards.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar current-limit switch applications.

Compared with TCK10AG30X and TPS25982L, MP5016HGQH-P uniquely integrates OVP clamp, reverse-blocking gate drive, and wide-VIN operation in a single QFN-10 package - delivering lower total solution size, faster time-to-market, and reduced validation effort for USB PD and storage applications.

Availability

MP5016HGQH-P is available at Aetrix Electronics and suitable for USB Power Delivery systems, M.2 SSD hot-swap interfaces, and wireless modem data card power management requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant packaging.

Supply support for MP5016HGQH-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 analog and power ICs, with core expertise in DC/DC conversion, motor drivers, and protection devices for computing, industrial, and automotive markets.

The MP5016H product line targets high-reliability hot-swap and eFuse applications, emphasizing integration of current limiting, overvoltage protection, and reverse-current blocking in ultra-compact packages for next-generation portable and modular electronics.

FAQ

What is the maximum allowable input voltage transient for MP5016HGQH-P?

The absolute maximum transient input voltage is 26V, as specified in the Absolute Maximum Ratings table. Exceeding this value risks permanent damage to the internal 43mΩ MOSFET and control circuitry. For systems with higher expected transients (e.g., automotive load dump), an external TVS diode rated for >26V clamping must be used upstream.

How does the MODE pin configure OVP thresholds beyond the two digital levels?

MODE supports resistor-divider programming: connecting R_MODE (≥68kΩ) from MODE to GND sets V_CLAMP = 0.3V + 0.047V/kΩ × R_MODE. For example, 76.8kΩ yields ~3.9V clamp. A 39pF capacitor from MODE to GND is required to stabilize the divider against noise.

Can MP5016HGQH-P operate without an external reverse-blocking MOSFET?

Yes - the GATE pin can be left unconnected with a 100pF capacitor to GND, disabling reverse-blocking. In this configuration, the device still provides forward current limiting, OVP, and thermal protection, but offers no protection against backfeed from output to input during shutdown.

What is the minimum ILIMIT resistor value that avoids sleep mode activation?

The device enters sleep mode below ~0.38A load current, disabling current limit logic. To maintain active regulation, the programmed current limit must exceed this threshold. Using RLIMIT = 3kΩ yields 0.75A (per Table 1), which is the lowest validated setting ensuring full protection functionality.

How does thermal foldback operate during short-circuit events?

When V_DS > 11V and junction temperature exceeds 110°C, the current limit folds back to reduce power dissipation. This prevents SOA violation and thermal runaway during high-VIN short circuits, allowing safe auto-retry instead of immediate latch-off.

Is MP5016HGQH-P compatible with 3.3V-only microcontroller GPIO for EN control?

Yes - the EN pin has a 2V rising threshold and 2.2MΩ internal pull-down. A 3.3V GPIO can directly drive EN high; no level-shifting is needed. For robust noise immunity, a 100kΩ series resistor is recommended between GPIO and EN.

What is the purpose of the 100pF capacitor on the GATE pin when no external MOSFET is used?

The 100pF capacitor stabilizes the GATE driver output, preventing oscillation or unintended switching due to parasitic capacitance and noise. Omitting it may cause erratic gate voltage behavior, leading to false reverse-blocking activation or shoot-through in adjacent circuits.