Send an Inquiry

To receive a quote for your project, please fill in the following information, and we’ll get back to you promptly.

Submit Inventory List

Please fill in the following information, and we’ll get back to you promptly.

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

Monolithic Power Systems Inc. MP5000SDQ-LF-P

Name: MP5000SDQ-LF-P
Brand: Monolithic Power Systems Inc.
SKU: MP5000SDQ-LF-P
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

Compare

Part No.:: MP5000SDQ-LF-P

Manufacturer:: Monolithic Power Systems Inc.

Category:: Power Distribution Switches, Load Drivers

Package:: 10-VFDFN Exposed Pad

Datasheet:: MP5000SDQ-LF-P.pdf

Description:: IC PWR SWITCH N-CHAN 1:1 10QFN

Quantity:: RFQ Add To RFQ list

Payment:

Shipping:

Inventory:4,237

Please send an inquiry. Send us your inquiry, and we will respond immediately.

Product details

Overview

MP5000SDQ-LF-P from Monolithic Power Systems is a programmable current-limit load switch IC designed for hot-swap and inrush-current control in 12V power rails. It integrates a 40mΩ DMOS FET, adjustable 1–5A current limit via external resistor, 0.9ms default output slew rate (dv/dt pin), UVLO (8.5V typ), and overvoltage clamping at 15V. Used in laptop PC card slots to prevent bus disruption during insertion.

For engineers reviewing the MP5000SDQ-LF-P datasheet, MP5000SDQ-LF-P pinout, MP5000SDQ-LF-P application, or MP5000SDQ-LF-P equivalent, key selection criteria include verified thermal latch behavior (175°C), tri-state Enable/Fault signaling, QFN10 package thermal resistance (θJA = 50°C/W), and confirmed hold/trip current separation (3.7A/5.0A @ 22Ω).

Technical Context

The MP5000SDQ-LF-P implements a sense-FET-based current-limit architecture with internal charge-pump gate drive enabling low R_DS(on). Its dv/dt pin controls output voltage ramp time via external capacitor or open-circuit configuration (0.9ms default), while the I-Limit pin sets trip and hold thresholds using a single resistor.

UVLO (8.5V turn-on, 0.8V hysteresis) and OVP (15V clamp) operate independently of enable state. The bi-directional Enable/Fault pin provides three-level signaling: low (disable/clear fault), mid (thermal fault latched), high (enabled), supporting wired-NOR fault bus architectures across multiple units.

Key Specifications

Parameter	Value and Actual Design Meaning
Input Voltage Range	10V to 18V - supports nominal 12V systems with ±2V margin and transient tolerance up to 22V absolute max
Current Limit Range	1A to 5A - set by external resistor (e.g., 22Ω yields 3.7A hold / 5.0A trip); enables precise load protection tuning
R_DS(on)	40mΩ (typ, 25°C) - limits conduction loss to 160mW at 2A, minimizing self-heating in normal operation
Thermal Shutdown	175°C latch - protects against sustained overload; requires external reset or UVLO cycle to recover
Enable/Fault Logic Levels	V_IL ≤ 0.5V (disable), V_IH ≥ 2.5V (enable), V_INT = 0.82–1.95V (thermal fault signal)
dv/dt Rise Time	0.5–2.1ms (adjustable) - prevents input rail collapse during capacitive load turn-on; open-pin defaults to 0.9ms
UVLO Threshold	7.7–9.3V (turn-on), 0.8V hysteresis - ensures stable startup only when input rail is within safe operating window

Pinout & Package

MP5000SDQ-LF-P uses a 3mm × 3mm QFN-10 package with exposed thermal pad (Pin 11). Pin 5 is No Connect and must remain floating. GND (Pin 1) and SOURCE (Pins 6–10) share common copper pour for thermal and current handling.

Pin/Terminal	Circuit Role	Design Meaning
1 GND	Reference ground	Internal IC reference node; must connect to low-impedance system ground plane
2 dv/dt	Slew rate control	Open-circuit yields 0.9ms ramp; external capacitor extends rise time linearly (e.g., 1nF → 23ms)
3 Enable/Fault	Tri-state bidirectional I/O	Drives low to clear faults, floats high to enable, sinks to mid-level (1.4V) during thermal shutdown
4 I-Limit	Current threshold setting	Resistor to SOURCE sets both trip (5A max) and hold (3.7A typ) currents; no internal bias required
5 N/C	No connection	Must be left unconnected; solder mask coverage recommended to prevent accidental shorting
6–10 SOURCE	Power FET source terminal	Output node and high-current path; pins are internally bonded together for 5A continuous rating
11 VCC (Exposed Pad)	Input power and thermal interface	Primary input supply connection; exposed pad must be soldered to PCB thermal plane for θJA = 50°C/W

Key Features

Feature	Design Value
Integrated 40mΩ DMOS FET	Eliminates need for external MOSFET and gate driver; reduces BOM count and layout area in hot-swap circuits
Adjustable current limit (1–5A)	Single external resistor sets both trip and hold thresholds-enables precise matching to downstream load requirements
Programmable output slew rate	dv/dt pin accepts 0–1nF capacitor to scale ramp time from 0.5ms to 23ms-prevents input rail droop during hot-plug
Three-level Enable/Fault signaling	Supports multi-device fault bus without external logic; mid-level voltage directly indicates thermal latch condition
UVLO + OVP protection	Independent input monitoring blocks operation below 7.7V and clamps output above 15V-protects downstream circuitry

Applications

Hot-Swap Card Slots

Laptop ExpressCard Interfaces

Use Scenario: Hot insertion of PCMCIA/ExpressCard modules into powered laptop backplanes.

IC Role / Device Role / Timing Role: Load switch controlling 12V VCC delivery to card; limits inrush to prevent host rail collapse.

Use Value: Enables reliable plug-and-play without system reboot; 0.9ms default slew rate meets ExpressCard timing spec for VCC ramp.

Use Scenario: Isolating USB/PCIe peripheral power domains during dynamic attach/detach.

IC Role / Device Role / Timing Role: Current-limited power gate between mainboard and expansion slot; responds to EN/Fault bus coordination.

Use Value: Prevents bus contention and data corruption; tri-state fault signaling allows centralized thermal management across multiple slots.

Industrial Backplane Modules

12V Embedded Computing Rails

Use Scenario: Adding modular I/O cards to industrial PLC backplanes with live power.

IC Role / Device Role / Timing Role: Programmable current limiter on 12V auxiliary rail; UVLO ensures operation only during stable input conditions.

Use Value: Eliminates need for discrete current-sense + comparator + MOSFET solution; 5A rating supports high-power fieldbus modules.

Use Scenario: Power sequencing and overload protection for SoM carrier boards with 12V input.

IC Role / Device Role / Timing Role: Primary 12V input switch with thermal latch and OVP; coordinates with PMIC enable signals.

Use Value: Reduces risk of catastrophic failure during short-circuit events; 175°C thermal shutdown prevents silicon damage under sustained fault.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
MP5014A	Successor device with improved thermal performance (θJA = 40°C/W), lower R_DS(on) (32mΩ), and enhanced ESD robustness (±4kV HBM)	Same pinout and function; supports higher continuous current (5.5A) and faster recovery from thermal fault	Select MP5014A for new designs requiring extended lifetime, higher ambient temperature operation, or tighter thermal margins.
TPL9032DQNR	TI part with fixed 3.5A current limit, no dv/dt adjustment, but integrated reverse-current blocking and lower quiescent current (0.8mA vs 1.2mA)	Lacks slew-rate programming and tri-state fault signaling; suited for simpler, cost-sensitive applications without coordinated fault bus	Choose TPL9032DQNR where design simplicity and reverse-current blocking outweigh programmability and multi-unit fault coordination needs.

Compared with MP5014A, MP5000SDQ-LF-P offers proven field reliability but higher thermal resistance and less robust ESD; versus TPL9032DQNR, it delivers full programmability and system-level fault signaling at the cost of higher complexity and quiescent current.

Availability

MP5000SDQ-LF-P is available at Aetrix Electronics and suitable for hot-swap card slots, laptop ExpressCard interfaces, and industrial backplane modules requiring stable component supply and long-term obsolescence support.

Supply support for MP5000SDQ-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 mixed-signal ICs for power management, including DC/DC converters, LED drivers, and load switches.

The MP5000S product line targets robust, programmable power-switching solutions for hot-plug and inrush-sensitive applications in computing, industrial, and communications equipment.

FAQ

What is the maximum continuous current rating for MP5000SDQ-LF-P?

The MP5000SDQ-LF-P supports 5A continuous current at TA = 25°C with proper PCB copper area (0.5 in²). Derating applies above 80°C ambient: 2.3A maximum with minimum copper, due to thermal resistance (θJA = 50°C/W) and 175°C junction limit.

How does the Enable/Fault pin behave during thermal shutdown?

During thermal shutdown, the Enable/Fault pin is actively driven to an intermediate voltage (0.82–1.95V), distinct from its high (enabled) or low (disabled) states. This latched mid-level signal persists until VCC cycles or the pin is pulled low externally to reset the fault flag.

Can the dv/dt pin be left unconnected, and what is the resulting rise time?

Yes-the dv/dt pin may be left floating (no external capacitor), and the internal circuit guarantees a typical output voltage rise time of 0.9ms from enable to full 12V output. This default value satisfies most hot-swap timing requirements without additional components.

What resistor value sets a 3.7A hold current?

A 22Ω resistor between I-Limit and SOURCE pins sets a typical hold current of 3.7A and trip current of 5.0A at VCC = 12V. This value is validated per Table 2 in the datasheet and accounts for process variation across production lots.

Is MP5000SDQ-LF-P RoHS-compliant and lead-free?

Yes-MP5000SDQ-LF-P is fully RoHS-compliant and lead-free, as indicated by the "-LF" suffix. All MPS parts adhere to the RoHS directive, and green status documentation is available on the Monolithic Power Systems website under Quality Assurance.

Why is the N/C pin required to remain floating?

Pin 5 is internally unconnected and has no electrical function. Leaving it floating prevents unintended coupling or leakage paths that could affect dv/dt accuracy or Enable/Fault logic levels. Solder mask coverage is recommended to avoid accidental solder bridging during assembly.

What happens if the current limit resistor is omitted?

Omitting the I-Limit resistor disables current limiting entirely-the device operates with undefined trip/hold thresholds and risks immediate thermal shutdown under overload. The resistor is mandatory; no internal default value exists for current limit programming.

MP5000SDQ-LF-P Specifications

Product attributes: Attribute value

Manufacturer:: Monolithic Power Systems Inc.

Package/Case:: 10-VFDFN Exposed Pad

Series:: -

Packaging:: Tape & Reel (TR)

Product Status:: Not For New Designs

Switch Type:: General Purpose

Number of Outputs:: 1

Ratio - Input:Output:: 1:1

Output Configuration:: High Side

Output Type:: N-Channel

Interface:: On/Off

Voltage - Load:: 10V ~ 18V

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

Current - Output (Max):: 5A

Rds On (Typ):: 40mOhm

Input Type:: Non-Inverting

Features:: Slew Rate Controlled, Status Flag

Fault Protection:: Current Limiting (Adjustable), Over Temperature, Over Voltage, UVLO

Operating Temperature:: -40°C ~ 125°C (TJ)

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: 10-QFN (3x3)

MP5000SDQ-LF-P FAQ

1.How can I place an order for MP5000SDQ-LF-P through Aetrix?

Please submit a Request for Quotation (RFQ) for MP5000SDQ-LF-P 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 MP5000SDQ-LF-P reliable?

The price and inventory of MP5000SDQ-LF-P are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MP5000SDQ-LF-P is usually 5 days.

3.What payment methods are accepted for MP5000SDQ-LF-P?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MP5000SDQ-LF-P transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for MP5000SDQ-LF-P?

MP5000SDQ-LF-P orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your MP5000SDQ-LF-P 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 MP5000SDQ-LF-P?

For technical support, including MP5000SDQ-LF-P datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MP5000SDQ-LF-P requirements.

6.How does Aetrix verify that MP5000SDQ-LF-P is sourced from the original manufacturer or authorized distributors?

All MP5000SDQ-LF-P 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 MP5000SDQ-LF-P meets industry standards.

7.What is the process for return or replacement of MP5000SDQ-LF-P?

All MP5000SDQ-LF-P units undergo pre-shipment inspection (PSI). If there is an issue with MP5000SDQ-LF-P, 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 MP5000SDQ-LF-P part is unused and in its original packaging.

Return procedure for MP5000SDQ-LF-P:

1.Submit a request within 90 days.

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

Tech Hub

2026-08-18 Operational Amplifier (Op Amp): Basics, Configurations, Feedback and Applications

Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…

2026-08-14 Jumper Cables: How to Use, Connect and Choose Them Safely

Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…

2026-08-11 LDO Regulator: Dropout Voltage, Noise, PSRR and Power Dissipation

LDO regulator guide covering low dropout voltage, power dissipation, thermal design, PSRR, output noise, capacitor stability, adjustable LDO circuits, LDO vs buck converter and datasheet selection chec…

2026-08-06 Conditional Access Module: CAM, CI/CI+ and DVB Security

Conditional Access Module guide covering CAM meaning, CI/CI+ interface, smart card authorization, DVB security workflow, TV and set-top box compatibility, internal electronics, ESD protection, connecto…

2026-08-03 Electronic Component Obsolescence: EOL Risks, Replacement Options and Last-Time Buy Strategy

Guide to electronic component obsolescence covering EOL risk, PCN/PDN notices, last-time buy planning, replacement options, form-fit-function validation, counterfeit risk and BOM lifecycle management.

2026-07-29 18650 Battery: Voltage, Capacity, Charging and Pack Design

18650 battery guide covering lithium-ion cell basics, 3.6V/3.7V voltage, 4.2V charging, mAh and Wh capacity, protected cells, chargers, BMS, series-parallel packs, holders, welding and sourcing checks.…

2026-07-27 Hall Effect Sensor: Working Principle, Types, Circuits and Applications

Hall effect sensor guide covering working principle, linear and digital sensors, Arduino circuits, current sensing, speed detection, automotive applications, A3144 examples, signal filtering and datash…

2026-07-20 Product Change Notification (PCN) in Electronic Components: Meaning and Supply Chain Response

Product Change Notification guide for electronic components, covering PCN meaning, PCN vs PDN/EOL, common change types, risk levels, form-fit-function review, engineering validation, BOM control, LTB/L…

2026-07-19 Blend Door Actuator: Symptoms, Location, Reset and Replacement Guide

A practical guide to blend door actuators, covering HVAC function, symptoms, location, AC and heater issues, reset and calibration, replacement cost, electrical diagnosis, compatibility checks, and rep…

2026-07-17 Raspberry Pi Alternatives: Chip-Level Comparison, Compatibility and Replacement Guide

Engineering guide to Raspberry Pi alternatives, covering chip-level differences, Orange Pi, ROCK, Jetson, Banana Pi, NanoPi, Compute Module, Pico, GPIO, camera, HAT compatibility, and replacement risks…