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Monolithic Power Systems Inc. MP62260DS-LF-Z
- Part No.:
- MP62260DS-LF-Z
- Manufacturer:
- Monolithic Power Systems Inc.
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MP62260DS-LF-Z.pdf
- Description:
- IC PWR SWITCH 1:1 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:3,090
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Product details
Overview
MP62260DS-LF-Z from Monolithic Power Systems is a single-channel, active-low enable, current-limited power distribution switch with 2A continuous load capability, 3A typical current limit, and integrated thermal shutdown and under-voltage lockout. It features a 50mΩ internal MOSFET, 90μA quiescent current, and operates from 2.7V to 5.5V input - deployed in USB power distribution and PC Card hot-swap circuits.
For engineers reviewing the MP62260DS-LF-Z datasheet, MP62260DS-LF-Z pinout, MP62260DS-LF-Z application, or MP62260DS-LF-Z equivalent, key selection criteria include enable polarity (active-low), SOIC8 package thermal performance, FLAG deglitch timing (8ms), reverse current blocking, and precise trip-current hysteresis across temperature.
Technical Context
The MP62260DS-LF-Z implements a current-sense amplifier and charge-pump gate driver to regulate output current during overload, entering constant-current mode at ≥2.3A (typical trip) before thermal shutdown activates above 140°C. Its UVLO circuit engages below 1.95V (rising edge) with 250mV hysteresis to prevent erratic startup.
FLAG is an open-drain fault indicator with 8ms deglitch filtering for over-current events but no deglitching during thermal or UVLO faults. The device blocks reverse current from OUT to IN and supports fast turn-on (≤1.6ms) and turn-off (≤10ms) with controlled slew rates on VOUT.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Continuous Load Current | 2A - sustains full-rated load without derating at TA ≤ +85°C with proper PCB copper area. |
| Current Limit Threshold | 3A typical - limits peak fault current to protect downstream circuitry and upstream supply. |
| Input Voltage Range | 2.7V to 5.5V - compatible with 3.3V and 5V system rails including USB VBUS and notebook I/O domains. |
| RDS(on) | 50mΩ max at TA = 25°C - minimizes voltage drop (<100mV @ 2A) and power loss (200mW). |
| Quiescent Current | 90μA typ - enables low-power standby states without compromising enable responsiveness. |
| FLAG Deglitch Time | 8ms - suppresses transient overloads (e.g., capacitive inrush) while retaining fast fault detection. |
| Thermal Shutdown Threshold | 140°C - disables output until junction cools to ~120°C, preventing permanent silicon damage. |
| Enable Polarity | Active-low - EN logic high disables switch; simplifies interface with microcontroller GPIOs pulled high. |
Pinout & Package
MP62260DS-LF-Z is housed in an industry-standard SOIC8 package (5.0mm × 6.2mm, 1.27mm pitch), optimized for thermal dissipation (θJA = 90°C/W) on 4-layer PCBs per JESD51-7.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | GND | Power ground reference for internal sense circuitry and thermal monitoring. |
| 2, 3 | IN | Primary power input (2.7–5.5V); accepts decoupling capacitor ≥10μF for transient immunity. |
| 4 | EN | Active-low enable control; logic high (>2V) disables switch, reducing supply current to 1.5μA. |
| 5 | FLAG | Open-drain fault flag; pulls low after 8ms deglitched over-current or thermal event. |
| 6, 7, 8 | OUT | Parallel-connected output pins delivering switched power to load; share current path through single MOSFET. |
Key Features
| Feature | Design Value |
|---|---|
| Reverse Current Blocking | Prevents backflow from OUT to IN during disable or input dropout - eliminates need for external diode. |
| No FLAG Glitch During Power-Up | Ensures clean initialization without false fault reporting during VIN ramp-up - reduces firmware polling overhead. |
| Under-Voltage Lockout (UVLO) | Disables output below 1.95V (rising) with 250mV hysteresis - prevents unstable operation near brownout thresholds. |
| Thermal-Shutdown Hysteresis | 20°C gap between shutdown (140°C) and recovery (~120°C) - avoids oscillation during marginal thermal conditions. |
| Accurate Current Limit | ±33% tolerance over temperature (2.2–3.8A) - enables predictable fault margin design without over-engineering fuses. |
Applications
| USB Power Distribution | PC Card Hot Swap |
|---|---|
|
Use Scenario: Providing controlled 5V power to USB peripherals during plug-in/out sequences in portable hosts. IC Role / Device Role / Timing Role: Power switch enforcing inrush current limit and reverse-blocking during card insertion/removal. Use Value: Prevents bus voltage sag and host port reset by limiting peak inrush to ≤3A and blocking backfeed from peripheral caps. |
Use Scenario: Enabling safe insertion/removal of PCMCIA cards in industrial laptops and telecom modules. IC Role / Device Role / Timing Role: Sequenced power delivery with UVLO and thermal protection to avoid signal corruption during hot-plug transients. Use Value: Guarantees clean power ramp (≤1.6ms turn-on) and immediate fault isolation (8ms FLAG assertion) to meet PCMCIA spec timing windows. |
| Notebook PC I/O Rails | Telecom Line Card Protection |
|
Use Scenario: Isolating 3.3V/5V auxiliary rails for ExpressCard slots, SD card readers, or docking connectors. IC Role / Device Role / Timing Role: Load switch with precise current limiting and reverse blocking to protect SoC I/O domains. Use Value: Eliminates need for discrete FET + sense resistor + comparator solution - reduces BOM count by 4 components. |
Use Scenario: Protecting 5V power feeds to modular line interface cards in carrier-grade access equipment. IC Role / Device Role / Timing Role: Fault-tolerant distribution switch handling short-circuit events without system-level reboot. Use Value: Sustains 3A fault current indefinitely in constant-current mode while FLAG signals upstream controller for graceful failover. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar current-limited power distribution switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TI TPS2051BDBVR | Active-high enable, 2.2A continuous, 2.8A current limit, 70mΩ RDS(on), no reverse blocking. | Lacks reverse current protection and has higher on-resistance - requires external diode for backfeed prevention. | Select when active-high logic interface is mandatory and reverse blocking is handled elsewhere in design. |
| ON Semi NCP45520MUTBG | 2A continuous, 3.2A current limit, 42mΩ RDS(on), active-low enable, includes programmable soft-start. | Offers adjustable rise time but lacks FLAG deglitch tuning - less robust against capacitive inrush false triggers. | Prefer for designs requiring controlled VOUT slew rate; verify FLAG response meets fault logging latency requirements. |
Compared with TPS2051BDBVR and NCP45520MUTBG, MP62260DS-LF-Z delivers tighter current-limit accuracy (±33% vs ±40%), lower quiescent current (90μA vs 120–150μA), and guaranteed reverse blocking - making it optimal for space-constrained USB and hot-swap applications where BOM reduction and fault resilience are critical.
Availability
MP62260DS-LF-Z is available at Aetrix Electronics and suitable for USB power distribution, PC Card hot swap, and notebook PC I/O rail applications requiring stable component supply, RoHS-compliant packaging, and long-term lifecycle support.
Supply support for MP62260DS-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 power ICs, with core expertise in DC/DC conversion, LED drivers, and power switches.
The MP62260/MP62261 product line targets compact, reliable power distribution in portable and embedded systems - designed specifically for USB, hot-swap, and multi-rail I/O protection where precision current limiting and thermal resilience are essential.
FAQ
What is the maximum allowable input voltage for MP62260DS-LF-Z?
The absolute maximum input voltage (IN to GND) is +6.0V. Continuous operation must remain within 2.7V to 5.5V per specification. Exceeding 6.0V risks permanent damage to the internal MOSFET and control circuitry, as confirmed in the Absolute Maximum Ratings table.
Does MP62260DS-LF-Z support reverse current blocking when disabled?
Yes - the device inherently blocks reverse current flow from OUT to IN in both enabled and disabled states, with measured reverse leakage ≤1μA at VOUT = 5.5V and VIN = GND. This eliminates the need for an external blocking diode in most applications.
How does the FLAG pin behave during thermal shutdown versus over-current events?
FLAG asserts low after an 8ms deglitch timeout for over-current events only. During thermal shutdown or UVLO, FLAG is not deglitched and responds immediately - enabling faster system-level thermal fault response without delay.
Can MP62260DS-LF-Z drive a 2A resistive load continuously at 85°C ambient?
Yes - with ≥1.4W total power dissipation capability (SOIC8 θJA = 90°C/W) and 50mΩ RDS(on), power loss is ~200mW at 2A, keeping junction temperature well below 125°C even at TA = +85°C using standard 2oz copper layout.
What is the minimum recommended input capacitance for stable operation?
A minimum 10μF ceramic or tantalum capacitor between IN and GND is specified to suppress input transients and improve short-circuit immunity. Lower values may cause ringing or false UVLO triggering during load-step events.
Is the EN pin 5V-tolerant when driven from a 5V microcontroller GPIO?
No - EN is not 5V-tolerant. With VIN = 5.5V, the absolute maximum EN voltage is +6.0V, but logic high threshold is only 2.0V min. Driving EN directly from a 5V GPIO risks exceeding the 1.5μA leakage limit and may degrade long-term reliability; use a level-shifter or voltage divider if VIN > 3.3V.
How does the current limit respond to rapidly increasing load current?
When load current ramps at ≤100A/s, the device trips at 2.3A (min) and enters constant-current mode. At faster slew rates, trip current increases up to 4.3A (max), as verified in Electrical Characteristics Table under "Trip Current" test condition.
MP62260DS-LF-Z Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Monolithic Power Systems Inc.
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- 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:
- -
- Interface:
- On/Off
- Voltage - Load:
- 2.7V ~ 5.5V
- Voltage - Supply (Vcc/Vdd):
- Not Required
- Current - Output (Max):
- 2A
- Rds On (Typ):
- 50mOhm
- Input Type:
- -
- Features:
- Status Flag
- Fault Protection:
- Current Limiting (Fixed), Over Temperature, Reverse Current, UVLO
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
MP62260DS-LF-Z FAQ
1.How can I place an order for MP62260DS-LF-Z through Aetrix?
Please submit a Request for Quotation (RFQ) for MP62260DS-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 MP62260DS-LF-Z reliable?
The price and inventory of MP62260DS-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 MP62260DS-LF-Z is usually 5 days.
3.What payment methods are accepted for MP62260DS-LF-Z?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MP62260DS-LF-Z transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MP62260DS-LF-Z?
MP62260DS-LF-Z orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MP62260DS-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 MP62260DS-LF-Z?
For technical support, including MP62260DS-LF-Z datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MP62260DS-LF-Z requirements.
6.How does Aetrix verify that MP62260DS-LF-Z is sourced from the original manufacturer or authorized distributors?
All MP62260DS-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 MP62260DS-LF-Z meets industry standards.
7.What is the process for return or replacement of MP62260DS-LF-Z?
All MP62260DS-LF-Z units undergo pre-shipment inspection (PSI). If there is an issue with MP62260DS-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 MP62260DS-LF-Z part is unused and in its original packaging.
Return procedure for MP62260DS-LF-Z:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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