Monolithic Power Systems Inc. MP62061DH-LF-P

Overview

MP62061DH-LF-P from Monolithic Power Systems is a single-channel, current-limited power distribution switch with 700mA continuous load capability, 1A accurate current limit, and 80mΩ R_DS(ON). It operates from 2.7V to 5.5V input, integrates thermal shutdown and under-voltage lockout, and is used in USB power distribution for smartphones, portable GPS, and set-top boxes.

For engineers reviewing the MP62061DH-LF-P datasheet, MP62061DH-LF-P pinout, MP62061DH-LF-P application, or MP62061DH-LF-P equivalent, key selection criteria include guaranteed 1A current-limit accuracy, 8ms FLAG deglitch timing, reverse current blocking, SOIC8E thermal performance, and active-high enable compatibility with CMOS/TTL logic.

Technical Context

The MP62061DH-LF-P implements a thermally protected, current-regulated N-channel MOSFET switch with internal charge pump for gate drive. Its overcurrent response transitions to constant-current mode at ≥1.4A trip threshold (slew-rate dependent), then triggers thermal shutdown above 140°C junction temperature with 20°C hysteresis.

It features an open-drain FLAG pin with 4–15ms deglitch window-immune to power-up glitches-and built-in UVLO with 250mV hysteresis. Reverse current blocking prevents backflow when OUT > IN, and EN logic thresholds (V_IL ≤ 0.8V, V_IH ≥ 2V) ensure robust digital interface operation across voltage rails.

Key Specifications

Pinout & Package

MP62061DH-LF-P is housed in an SOIC8E package with exposed thermal pad (connected to GND) for enhanced heat dissipation. The 8-pin layout supports compact PCB placement and meets JEDEC MS-012 BA standard.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar current-limited power distribution switch applications.

Compared with TPS22965DSGR and NCP45520MUTXG, MP62061DH-LF-P uniquely combines guaranteed 1A current limiting, thermal shutdown, reverse-current blocking, and SOIC8E manufacturability-making it optimal for cost-sensitive, thermally constrained USB and portable applications requiring full self-protection.

Availability

MP62061DH-LF-P is available at Aetrix Electronics and suitable for USB power distribution, smartphone peripheral control, and set-top box load switching requiring stable component supply, RoHS-compliant packaging, and long-term production continuity.

Supply support for MP62061DH-LF-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, LED drivers, and intelligent power switches.

The MP62061 belongs to MPS's current-limited power distribution switch product line, designed specifically for fault-tolerant load switching in space-constrained, thermally sensitive portable and consumer electronics.

FAQ

What is the maximum allowable input voltage for MP62061DH-LF-P?

The absolute maximum input voltage is +6.0V, but the recommended operating range is 2.7V to 5.5V. Operation above 5.5V risks permanent damage, and the device incorporates under-voltage lockout below ~2.45V to prevent erratic behavior during brownout conditions.

Does MP62061DH-LF-P support reverse current blocking during disable?

Yes. When disabled (EN = low), the internal MOSFET blocks reverse current flow from OUT to IN, with leakage limited to 0.2μA at OUT = 5.5V and IN = GND. This prevents backfeeding into the source rail when downstream loads remain powered.

How does the FLAG pin behave during thermal shutdown versus overcurrent events?

The FLAG pin asserts low after the 8ms deglitch timeout for both overcurrent and thermal shutdown events. However, during thermal shutdown, the deglitch circuit is bypassed-so FLAG responds immediately without delay once the 140°C threshold is crossed.

Can MP62061DH-LF-P be used with 3.3V logic control signals?

Yes. The EN pin has a logic-high threshold of ≥2.0V and logic-low threshold of ≤0.8V, making it fully compatible with 3.3V CMOS/TTL systems. Input leakage is only 1μA, minimizing loading on driving GPIOs.

What is the thermal resistance (θ_JA) of the SOIC8E package in standard layout?

The datasheet specifies θ_JA = 50°C/W for the SOIC8E package on a 4-layer JEDEC JESD51-7 PCB. With the exposed pad soldered to a 1-in² GND copper area, actual θ_JA can improve to ~40°C/W, enabling 700mA continuous operation up to +85°C ambient.

Is MP62061DH-LF-P UL Recognized, and what is the recognition number?

Yes. MP62061DH-LF-P is UL Recognized under file E322138, confirming compliance with UL 60950-1 and UL 62368-1 for end-equipment safety in consumer and industrial applications.

How does the current-limit trip point vary with input voltage?

The trip current increases slightly with VIN-from ~1.4A at 2.7V to ~1.8A at 5.5V-due to gate-drive headroom effects. Designers should use the 1.4A minimum value for worst-case fault containment analysis across the full input range.