Monolithic Power Systems Inc. MP62160DS-LF-P

Overview

MP62160DS-LF-P from Monolithic Power Systems is a single-channel, active-low enable, current-limited power distribution switch with 2A continuous load capability, 2.8A typical current limit, and integrated output discharge function. It operates from 2.7V to 5.5V input, features an 85mΩ internal MOSFET, thermal shutdown at 140°C, and open-drain FLAG pin for over-current reporting after 8ms deglitch. Used in USB power rails and hot-swap interfaces where fault-protected load switching is required.

For engineers reviewing the MP62160DS-LF-P datasheet, MP62160DS-LF-P pinout, MP62160DS-LF-P application, or MP62160DS-LF-P equivalent, key selection criteria include its SOIC8 package, active-low EN logic, 90μA quiescent current, reverse current blocking, and UL recognition (E322138) - all critical for portable and USB-powered system design.

Technical Context

The MP62160DS-LF-P implements a constant-current limiting architecture triggered when load current exceeds 2.8A (typ), entering regulated mode rather than immediate shutdown. Its thermal protection activates only upon sustained overload causing junction temperature to reach 140°C, with 20°C hysteresis enabling automatic recovery at ~120°C.

It integrates under-voltage lockout (UVLO) with 2.65V rising threshold and 250mV hysteresis, ensuring reliable startup only above valid supply levels. The FLAG pin provides open-drain fault signaling with built-in 8ms deglitching to suppress transient overloads, and no deglitching occurs during UVLO or thermal events.

Key Specifications

Pinout & Package

MP62160DS-LF-P is housed in an 8-pin SOIC package (body size 3.9mm × 4.9mm) with exposed pad connected to GND for thermal enhancement. Pin 1 is marked with a notch or dot; the exposed pad must be soldered to PCB ground plane for optimal thermal performance and electrical stability.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TPS22965DRLR and AP22653WU-7, MP62160DS-LF-P uniquely combines UL recognition, integrated output discharge, and open-drain FLAG with SOIC8 manufacturability - making it optimal for certified consumer and telecom equipment requiring full fault visibility and safe power sequencing.

Availability

MP62160DS-LF-P is available at Aetrix Electronics and suitable for USB power distribution, notebook PC auxiliary rails, telecom line card protection, and PC Card hot-swap applications requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.

Supply support for MP62160DS-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 design centers in the US, China, and Taiwan, and global manufacturing partnerships.

The MP62160/MP62161 product line delivers robust, certified power distribution switches for portable, computing, and communications systems where reliability, safety compliance, and compact integration are essential.

FAQ

What is the logic polarity of the EN pin on MP62160DS-LF-P?

The EN pin on MP62160DS-LF-P is active-low: the switch turns ON when EN voltage is ≤0.8V and turns OFF when EN is ≥2V. This matches the "DS" suffix designation in the ordering table and distinguishes it from the MP62161 series, which uses active-high enable.

Does MP62160DS-LF-P require an external pull-up resistor on the FLAG pin?

Yes - the FLAG pin is open-drain and requires an external pull-up resistor (typically 10kΩ to 5V or 3.3V) to generate a valid logic-high level when no fault is present. No internal pull-up is integrated, per the functional block diagram and electrical characteristics table.

Can MP62160DS-LF-P safely drive capacitive loads up to 100μF?

Yes - the datasheet specifies turn-on time (Ton) and turn-off time (Toff) test conditions using CL = 100μF and RL = 5Ω, confirming stable operation with such loads. Output discharge also ensures rapid settling after disable, avoiding floating rail issues.

Is the exposed pad on the SOIC8 package electrically connected internally?

Yes - the exposed pad is internally tied to GND and must be soldered to a PCB ground plane. It serves both thermal dissipation (reducing θJA by ~20°C/W) and electrical grounding, as confirmed in the package drawings and absolute maximum ratings section.

What happens during an over-current event followed by thermal shutdown?

Upon over-current, MP62160DS-LF-P first enters constant-current mode at ~2.8A. If sustained, die temperature rises until thermal shutdown triggers at 140°C, turning OFF the FET. After cooling to ~120°C (20°C hysteresis), the device automatically resumes normal operation if EN remains asserted and VIN is valid.

Does MP62160DS-LF-P support reverse current flow from OUT to IN?

No - the device includes reverse current blocking. When disabled or when IN drops below OUT voltage, the internal MOSFET body diode is back-biased and the control circuit prevents conduction, eliminating backfeed into the input supply as verified in the electrical characteristics table (IREV = 0.2μA max).

How does the 8ms FLAG deglitch time affect system response to short transients?

The 8ms deglitch ensures FLAG only asserts for over-current events lasting longer than 8ms, rejecting brief inrush or noise spikes. This eliminates false interrupts in microcontroller systems while preserving detection of genuine faults like sustained shorts or overloaded peripherals.