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Home > Products > Integrated Circuits (ICs) > Power Management (PMIC) > Power Distribution Switches, Load Drivers

Monolithic Power Systems Inc. MP62350EK-LF-Z

Name: MP62350EK-LF-Z
Brand: Monolithic Power Systems Inc.
SKU: MP62350EK-LF-Z
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: MP62350EK-LF-Z

Manufacturer:: Monolithic Power Systems Inc.

Category:: Power Distribution Switches, Load Drivers

Package:: 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)

Datasheet:: MP62350EK-LF-Z.pdf

Description:: IC PWR SWITCH 1:2 8MSOP

Quantity:: RFQ Add To RFQ list

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Inventory:3,628

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Product details

Overview

MP62350EK-LF-Z from Monolithic Power Systems is a dual-channel, active-low current-limited power distribution switch with 500mA continuous per channel, 85mΩ R_DS(on), and integrated output discharge (100Ω). It operates from 2.7V to 5.5V input and delivers overcurrent protection via constant-current limiting and thermal shutdown at 140°C. Used in USB power distribution and portable GPS devices for safe load switching.

For engineers reviewing the MP62350EK-LF-Z datasheet, MP62350EK-LF-Z pinout, MP62350EK-LF-Z application, or MP62350EK-LF-Z equivalent, key selection factors include guaranteed 500mA current limit, active-low enable logic, dual independent FLAG outputs with 8ms deglitch, reverse current blocking, and MSOP-8 thermal performance (θ_JA = 150°C/W).

Technical Context

The MP62350EK-LF-Z implements two independent N-channel MOSFET switches with matched current-limit thresholds (550–1100mA) and separate open-drain FLAG pins that assert after 8ms deglitch upon overcurrent or thermal fault. Each channel includes under-voltage lockout (1.95–2.65V rising edge) and reverse current blocking.

Its internal protection architecture combines fast trip response (≤100A/s slew-rate detection), thermal hysteresis (20°C), and automatic recovery once junction temperature falls below ~120°C. The 100Ω discharge path actively bleeds external output capacitors during disable, reducing residual voltage and system-level sequencing risks.

Key Specifications

Parameter	Value and Actual Design Meaning
Continuous Current	500mA per channel - supports stable powering of moderate-load peripherals without external current sensing.
R_DS(on)	85mΩ typical - minimizes conduction loss and self-heating at full load (e.g., 21.25mW per channel at 500mA).
Input Voltage Range	2.7V to 5.5V - compatible with single-cell Li-ion, 3.3V, and 5V rail systems without level-shifting.
FLAG Deglitch Time	8ms typical - suppresses transient overcurrent events (e.g., capacitor inrush) while retaining responsiveness to sustained faults.
Thermal Shutdown	140°C junction - triggers automatic shutdown before permanent silicon damage; recovers autonomously below ~120°C.
Discharge Resistance	100Ω - provides controlled V_OUT ramp-down (e.g., ~10ms for 10μF cap), preventing backfeed or latch-up in multi-rail systems.
Quiescent Current	140μA both channels enabled - enables low-power standby modes in battery-operated devices.

Pinout & Package

MP62350EK-LF-Z is housed in an 8-pin MSOP package (3mm × 3mm, 0.65mm pitch), optimized for space-constrained portable designs and offering θ_JA = 150°C/W on a 4-layer PCB.

Pin/Terminal	Circuit Role	Design Meaning
1 EN1	Active-Low Enable Input	Drives Channel 1 ON when pulled low; compatible with CMOS/TTL logic; 1μA leakage ensures minimal standby draw.
2 FLAG1	Open-Drain Fault Output	Asserts low after 8ms deglitch on overcurrent/thermal fault for Channel 1; requires external pull-up for MCU interrupt detection.
3 FLAG2	Open-Drain Fault Output	Independent fault reporting for Channel 2; enables per-rail diagnostics without shared signal contention.
4 EN2	Active-Low Enable Input	Independent control for Channel 2; allows asymmetric power sequencing (e.g., enable sensor rail before RF module).
5 OUT2	Power Switch Output	Delivers regulated 2.7–5.5V to load; includes reverse current blocking to prevent backflow from downstream rails.
6 GND	Power & Signal Reference	Common return for IN, OUTs, ENs, and FLAGs; must be low-impedance to maintain current-limit accuracy and thermal stability.
7 IN	Input Supply Rail	Accepts 2.7–5.5V; requires ≥10μF ceramic bypass capacitor to suppress transients and ensure UVLO reliability.
8 OUT1	Power Switch Output	First switched output; shares same R_DS(on) and protection features as OUT2 but operates independently.

Key Features

Feature	Design Value
Dual Independent Channels	Separate EN and FLAG pins per channel enable asynchronous control and fault isolation-critical for multi-peripheral USB hubs or modular IoT sensors.
Accurate Current Limit	Guaranteed 550–1100mA trip range ensures predictable fault behavior across temperature and process variation, eliminating need for external current-sense resistors.
Output Discharge Function	Integrated 100Ω discharge path eliminates external bleed resistors, reducing BOM count and ensuring safe power-down sequencing in hot-swap applications.
Thermal-Shutdown with Hysteresis	140°C shutdown + 20°C hysteresis prevents thermal oscillation during overload, enabling robust operation in enclosed enclosures without forced airflow.
No FLAG Glitch During Power-Up	FLAG outputs remain high-impedance until internal biasing stabilizes-prevents false interrupts during system boot and simplifies firmware initialization.

Applications

Smartphone Peripheral Power

USB-C Power Delivery Hub

Use Scenario: Powering camera modules, fingerprint sensors, or NFC transceivers only when active.

IC Role / Device Role / Timing Role: Dual-channel load switch isolating auxiliary rails with independent enable timing and fault reporting.

Use Value: Prevents battery drain during sleep mode and avoids bus conflicts via reverse current blocking and clean discharge.

Use Scenario: Distributing 5V power to multiple downstream USB ports with individual overcurrent protection.

IC Role / Device Role / Timing Role: Per-port power gate with dedicated FLAG signaling to host controller for port-level fault management.

Use Value: Enables compliance with USB PD specification requirements for per-port current limiting and hot-plug safety.

Notebook PC Subsystem Control

Portable GPS Receiver Power Management

Use Scenario: Enabling/disabling WWAN, Bluetooth, or SD card readers based on OS power states.

IC Role / Device Role / Timing Role: Low-quiescent (140μA) dual switch supporting S0ix/S3 state transitions with precise sequencing.

Use Value: Reduces system-wide standby current and eliminates need for discrete discharge circuits on each subsystem rail.

Use Scenario: Managing power to GPS baseband IC and RF front-end in handheld navigation units.

IC Role / Device Role / Timing Role: Current-limited switch protecting sensitive GNSS receivers from short-circuit events during antenna insertion or ESD events.

Use Value: Maintains signal integrity by preventing brownout on shared 3.3V rail and enables rapid recovery after transient faults.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
MP5095DJ-LF-Z	Single-channel, 3.6A rated, 12mΩ R_DS(on), no output discharge, 2.5–5.5V range	Higher current capacity but lacks dual-channel independence and discharge function	Select when higher per-rail current and lower conduction loss outweigh need for dual control and discharge.
TPS22965DNYR	Dual-channel, 2A per channel, 32mΩ R_DS(on), no integrated discharge, 1.1–5.5V range, active-high enable only	Broad input range and lower R_DS(on), but requires external discharge circuitry and lacks active-low option	Prefer for wide-input industrial systems where active-high logic aligns with existing MCU GPIOs.

Compared with MP5095DJ-LF-Z and TPS22965DNYR, MP62350EK-LF-Z uniquely balances dual-channel autonomy, built-in discharge, and active-low enable-making it optimal for space-constrained portable designs requiring coordinated rail shutdown and fault isolation without added components.

Availability

MP62350EK-LF-Z is available at Aetrix Electronics and suitable for smartphone peripheral power, USB-C power delivery hubs, and notebook PC subsystem control requiring stable component supply and long-term design continuity.

Supply support for MP62350EK-LF-Z 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 mixed-signal ICs for power management, motor drive, and interface applications.

The MP62350/MP62351 product line was designed specifically for reliable, low-footprint power distribution in portable electronics-emphasizing integrated protection, sequencing control, and minimal external component count.

FAQ

Is MP62350EK-LF-Z pin-compatible with MP62351EK-LF-Z?

No. MP62350EK-LF-Z uses active-low enable logic (EN1/EN2 pulled low to activate), while MP62351EK-LF-Z uses active-high logic. Pin assignments are identical, but control signal polarity differs-requiring schematic and firmware updates for substitution.

What is the maximum allowable continuous output current per channel?

The MP62350EK-LF-Z guarantees 500mA continuous current per channel under specified thermal conditions (TA ≤ +85°C, θJA = 150°C/W). At higher ambient temperatures or with insufficient PCB copper, derating applies-e.g., ~350mA at TA = +70°C with standard 2-layer board layout.

Does the device support reverse current blocking during disable?

Yes. The MP62350EK-LF-Z includes inherent reverse current blocking: when disabled, OUT1 and OUT2 are isolated from IN, preventing backflow from powered downstream loads into the input rail-a critical feature for multi-supply systems and USB OTG applications.

Can FLAG1 and FLAG2 be wire-OR'd together?

Yes, due to their open-drain structure. Connecting FLAG1 and FLAG2 to a shared pull-up resistor enables aggregated fault reporting. However, this loses per-channel fault identification-use only when system-level fault detection suffices and channel-specific diagnostics are unnecessary.

What is the purpose of the 8ms FLAG deglitch time?

The 8ms deglitch time filters out brief overcurrent transients-such as capacitor inrush or ESD-induced spikes-preventing false fault assertions. It ensures FLAG asserts only for sustained overloads (>8ms), improving system reliability without compromising protection response to genuine shorts.

Is MP62350EK-LF-Z RoHS compliant and halogen-free?

Yes. The "-LF" suffix indicates lead-free and RoHS-compliant packaging; Monolithic Power Systems confirms full compliance with EU RoHS Directive 2011/65/EU and JEDEC JS709C halogen-free requirements for this part number.

Why is MP62350EK-LF-Z marked "Not Recommended for New Designs"?

MPS recommends MP5095 for new designs due to its higher current rating (3.6A), lower R_DS(on) (12mΩ), and improved thermal performance. MP62350EK-LF-Z remains fully supported for legacy designs and applications where dual-channel independence and integrated discharge are prioritized over raw current capacity.

MP62350EK-LF-Z Specifications

Product attributes: Attribute value

Manufacturer:: Monolithic Power Systems Inc.

Package/Case:: 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)

Series:: -

Packaging:: Tape & Reel (TR)

Product Status:: Not For New Designs

Switch Type:: General Purpose

Number of Outputs:: 2

Ratio - Input:Output:: 1:2

Output Configuration:: High Side

Output Type:: -

Interface:: On/Off

Voltage - Load:: 2.7V ~ 5.5V

Voltage - Supply (Vcc/Vdd):: Not Required

Current - Output (Max):: 500mA

Rds On (Typ):: 85mOhm

Input Type:: Non-Inverting

Features:: Load Discharge, Status Flag

Fault Protection:: Current Limiting (Fixed), Over Temperature, Reverse Current, UVLO

Operating Temperature:: -20°C ~ 85°C (TA)

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: 8-MSOP

MP62350EK-LF-Z FAQ

1.How can I place an order for MP62350EK-LF-Z through Aetrix?

Please submit a Request for Quotation (RFQ) for MP62350EK-LF-Z on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.

2.Are the price and stock information for MP62350EK-LF-Z reliable?

The price and inventory of MP62350EK-LF-Z are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MP62350EK-LF-Z is usually 5 days.

3.What payment methods are accepted for MP62350EK-LF-Z?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MP62350EK-LF-Z transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for MP62350EK-LF-Z?

MP62350EK-LF-Z orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your MP62350EK-LF-Z order is processed, you will receive an email with the shipment details and tracking number.

Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.

5.How can I obtain technical support or documentation for MP62350EK-LF-Z?

For technical support, including MP62350EK-LF-Z datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MP62350EK-LF-Z requirements.

6.How does Aetrix verify that MP62350EK-LF-Z is sourced from the original manufacturer or authorized distributors?

All MP62350EK-LF-Z products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that MP62350EK-LF-Z meets industry standards.

7.What is the process for return or replacement of MP62350EK-LF-Z?

All MP62350EK-LF-Z units undergo pre-shipment inspection (PSI). If there is an issue with MP62350EK-LF-Z, returns or replacements are accepted under the following conditions:

1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.

2.The issue is reported within 90 days of delivery.

3.The MP62350EK-LF-Z part is unused and in its original packaging.

Return procedure for MP62350EK-LF-Z:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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