Monolithic Power Systems Inc. MP62130EK-LF-P

Overview

MP62130EK-LF-P from Monolithic Power Systems is a single-channel, active-low enable current-limited power distribution switch optimized for USB VBUS and portable load switching. It delivers 500mA continuous current with 90mΩ R_DS(ON), operates from 2.7V to 5.5V input, features output discharge (100Ω path), and integrates thermal shutdown, under-voltage lockout, and open-drain FLAG reporting - used in smartphone USB port power control.

For engineers reviewing the MP62130EK-LF-P datasheet, MP62130EK-LF-P pinout, MP62130EK-LF-P application, or MP62130EK-LF-P equivalent, key selection criteria include guaranteed 550–650mA current limit accuracy, 8ms deglitched FLAG response, reverse current blocking, and MSOP-8 package compatibility with space-constrained portable designs.

Technical Context

The MP62130EK-LF-P implements a thermally protected N-channel MOSFET power switch with integrated current-sense amplifier and deglitched fault flag logic. Its constant-current limiting activates at ≥550mA (typ. 650mA) under overload, transitioning to thermal shutdown only if junction temperature exceeds 140°C.

It uses an internal charge pump to drive the high-side gate, enabling full enhancement across the 2.7–5.5V input range. The active-low EN pin interfaces directly with CMOS/TTL logic, while the open-drain FLAG asserts low after 8ms debounce upon overcurrent or UVLO events - excluding thermal faults from deglitching.

Key Specifications

Pinout & Package

MP62130EK-LF-P is housed in an 8-pin MSOP package (3.0mm × 3.0mm × 1.0mm height), optimized for high-density PCB layouts in portable electronics. Pin 1 is marked with a half-circle or dot; leads are gull-wing, JEDEC MO-187 AA compliant.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MP62130EK-LF-P, MP62055DJ-LF-Z offers higher current capacity and modern packaging but requires EN polarity redesign; TCK107AG,LF reduces size and cost but sacrifices discharge capability and current rating - making MP62130EK-LF-P optimal for balanced performance in USB 2.0 portable systems.

Availability

MP62130EK-LF-P is available at Aetrix Electronics and suitable for smartphone USB port control, portable GPS power management, and set-top box peripheral switching requiring stable component supply and long-term industrial availability.

Supply support for MP62130EK-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, headquartered in California and serving global industrial, automotive, and consumer markets since 1997.

The MP62130 belongs to MPS's Power Distribution Switch product line, engineered specifically for reliable, space-efficient load switching in battery-powered and USB-compliant portable electronics with integrated protection.

FAQ

What is the logic polarity of the EN pin on MP62130EK-LF-P?

The EN pin on MP62130EK-LF-P is active-low: the switch turns ON when EN is pulled below 0.8V (logic low), and turns OFF when EN is ≥2.0V (logic high). This differs from the MP62131 variant, which uses active-high enable.

Does MP62130EK-LF-P support reverse current blocking?

Yes - MP62130EK-LF-P includes inherent reverse current blocking. When IN is disconnected or at 0V while OUT is powered, the internal MOSFET body diode is reverse-biased and no significant backfeed occurs (reverse leakage <0.2µA).

How does the FLAG pin behave during thermal shutdown?

The FLAG pin is not deglitched during thermal shutdown: it asserts low immediately upon junction temperature reaching 140°C, without the standard 8ms delay applied to overcurrent or UVLO events - enabling rapid system-level thermal fault response.

What is the purpose of the NC pins (4 and 5) on MP62130EK-LF-P?

Pins 4 and 5 are no-connect (NC) terminals - they are not bonded internally and must remain unconnected on the PCB. Routing traces or applying solder to these pins may cause mechanical stress or unintended coupling and is strictly prohibited.

Can MP62130EK-LF-P drive a 1000µF output capacitor safely?

Yes - MP62130EK-LF-P supports large output capacitance. Its controlled turn-on time (~1.8–3ms) and current limiting prevent inrush damage; however, a 10µF input bypass capacitor near the IN pin is mandatory to maintain stability under heavy load transients.

Is MP62130EK-LF-P RoHS compliant and lead-free?

Yes - the "-LF" suffix in MP62130EK-LF-P explicitly denotes lead-free, RoHS-compliant packaging. It uses matte tin plating on leads and meets JEDEC J-STD-020 moisture sensitivity level 3 (MSL3) requirements.

Why is MP62130EK-LF-P marked "Not Recommended for New Designs"?

MPS issued this notice because MP62055 offers improved specs (1.5A current, smaller DFN-8 package, lower R_DS(ON)) and active production support. MP62130EK-LF-P remains fully functional and available for legacy design refreshes and existing production continuity.