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Monolithic Power Systems Inc. MP62261DS-LF-Z
- Part No.:
- MP62261DS-LF-Z
- Manufacturer:
- Monolithic Power Systems Inc.
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MP62261DS-LF-Z.pdf
- Description:
- IC PWR SWITCH 1:1 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,824
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Product details
Overview
MP62261DS-LF-Z from Monolithic Power Systems is a single-channel, active-high enable, current-limited power distribution switch with 2A continuous rating, 3A typical current limit, 50mΩ RDS(ON), and SOIC8 package. It operates from 2.7V to 5.5V input, provides reverse-current blocking, thermal shutdown, and UVLO, and is used in USB power distribution for notebook PCs and portable GPS devices.
For engineers reviewing the MP62261DS-LF-Z datasheet, MP62261DS-LF-Z pinout, MP62261DS-LF-Z application, or MP62261DS-LF-Z equivalent, key selection criteria include enable polarity (active high), FLAG deglitch timing (8ms), thermal shutdown threshold (140°C), and SOIC8 footprint compatibility with board-level hot-swap and load-switching requirements.
Technical Context
The MP62261DS-LF-Z integrates a 50mΩ N-channel MOSFET with precision current-sense amplifier and internal charge pump to sustain stable current limiting across 2.7–5.5V input range. Its constant-current mode activates at ≥2.3A trip threshold, with thermal shutdown engaging only after sustained overload exceeds junction temperature limits.
FLAG is an open-drain fault indicator with 8ms deglitch filtering-ensuring immunity to transient overloads-but bypasses deglitch during UVLO or thermal events. EN logic threshold is 2V (high) and 0.8V (low), supporting direct interfacing with 3.3V/5V microcontrollers without level shifting.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Continuous Current | 2A - Sustains full-load operation without derating at TA ≤ 85°C with SOIC8 PCB layout per JEDEC MS-012. |
| Current Limit | 3A typical - Limits peak output to protect downstream circuitry during short-circuit or overload conditions. |
| RDS(ON) | 50mΩ max @ TA = 25°C - Minimizes voltage drop (≤100mV @ 2A) and power loss (≤200mW) under full load. |
| Supply Range | 2.7V to 5.5V - Supports direct connection to USB VBUS (5V), LDO outputs (3.3V), and battery-backed rails (2.7V+). |
| Quiescent Current | 90μA typ - Enables low-power system standby without compromising fast enable response (Ton = 1.6ms). |
| FLAG Deglitch | 8ms - Filters false OCP triggers from inrush or capacitive load transients while preserving real fault detection. |
| Thermal Shutdown | 140°C - Disables output to prevent permanent damage; auto-recovers when die cools to ~120°C. |
Pinout & Package
MP62261DS-LF-Z uses an industry-standard SOIC8 package (JEDEC MS-012, variation AA), 3.9mm × 4.9mm body, 1.27mm lead pitch, with exposed pad not present. Thermal resistance θJA = 90°C/W on 4-layer PCB.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | GND | Power ground reference for internal sense amplifier, thermal sensor, and charge pump return. |
| 2,3 | IN | Input voltage supply pin - accepts 2.7–5.5V; requires ≥10μF ceramic capacitor to GND for stability. |
| 4 | EN | Active-high enable input - drives internal gate driver when ≥2V; draws ≤1μA leakage in disabled state. |
| 5 | FLAG | Open-drain fault flag - pulls low after 8ms deglitched OCP or thermal event; requires external pull-up. |
| 6,7,8 | OUT | Power output terminals - paralleled internally to deliver up to 2A; supports reverse-current blocking. |
Key Features
| Feature | Design Value |
|---|---|
| Active-High Enable Logic | Eliminates need for external inverter when controlled by 3.3V/5V GPIOs; compatible with standard MCU I/O thresholds. |
| No FLAG Glitch During Power-Up | Prevents spurious fault assertions during VIN ramp-up, avoiding false system resets or error logging. |
| Reverse Current Blocking | Blocks backflow from OUT to IN when disabled, protecting upstream supplies in multi-rail systems. |
| Under-Voltage Lockout (UVLO) | Disables output until VIN ≥ 2.3V (rising edge); 250mV hysteresis prevents chatter near threshold. |
| Thermal-Shutdown Hysteresis | 20°C hysteresis ensures stable recovery-device remains off until junction cools to ~120°C before re-enabling. |
Applications
| USB Power Distribution | Notebook PC Peripheral Switching |
|---|---|
|
Use Scenario: Providing controlled 5V power to USB Type-A ports with overcurrent protection and hot-plug safety. IC Role / Device Role / Timing Role: Load switch managing VBUS delivery; enables/disables power path based on host controller command. Use Value: Prevents bus collapse during cable short or faulty peripheral insertion via 3A current limiting and 8ms FLAG reporting. |
Use Scenario: Isolating auxiliary rails (e.g., SD card slot, ExpressCard, or docking port) in ultrabooks. IC Role / Device Role / Timing Role: Single-pole power gate with fast turn-on (1.6ms) and reverse-current blocking. Use Value: Eliminates need for discrete FET + controller; reduces BOM count while meeting Intel Platform Power Management spec. |
| Smartphone/PDA Charging Circuit | Telecom Line Card Hot-Swap |
|
Use Scenario: Managing 5V charging path from USB adapter to battery management IC in portable devices. IC Role / Device Role / Timing Role: Current-limited distribution switch placed between input rectifier and charging IC input. Use Value: Limits inrush into large input capacitance (≥100μF) and blocks reverse current during adapter removal. |
Use Scenario: Enabling safe insertion/removal of line cards in telecom chassis with live backplane. IC Role / Device Role / Timing Role: Hot-swap controller front-end providing soft-start and fault isolation. Use Value: Delivers controlled 3.3V/5V ramp with <2ms rise time and immediate OCP response to prevent backplane disturbance. |
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 TPS22965DSGR | Active-high enable, 2A/4A limit, 34mΩ RDS(ON), WSON-8 (2mm × 2mm), no FLAG pin. | Lacks fault reporting; suited for space-constrained designs where OCP status monitoring is handled externally. | Select when board area is critical and FLAG functionality is redundant or implemented via system-level monitoring. |
| ON Semi NIS5132MN3TXG | Active-low enable, 2A/3.5A limit, 55mΩ RDS(ON), SOIC8, includes FLAG with 10ms deglitch. | Different enable polarity requires logic inversion; slightly higher RDS(ON) increases conduction loss at 2A. | Choose only if existing design uses active-low control and FLAG timing tolerance allows 10ms vs. 8ms. |
Compared with TPS22965DSGR and NIS5132MN3TXG, MP62261DS-LF-Z uniquely combines SOIC8 compatibility, precise 3A current limit, 8ms deglitch, and active-high enable-making it optimal for USB and notebook applications requiring fault visibility and legacy footprint support.
Availability
MP62261DS-LF-Z is available at Aetrix Electronics and suitable for USB power distribution, notebook PC peripheral switching, and telecom line card hot-swap applications requiring stable component supply, RoHS-compliant packaging, and long-term lifecycle continuity.
Supply support for MP62261DS-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, headquartered in California and serving global industrial, computing, and consumer markets since 1997.
The MP6226x series targets compact, reliable power distribution in portable and embedded systems-designed specifically for USB, hot-swap, and load-switching applications demanding integrated protection and minimal external components.
FAQ
What is the enable polarity of MP62261DS-LF-Z?
The MP62261DS-LF-Z features active-high enable logic: the device turns on when the EN pin voltage exceeds 2.0V (typical) and turns off when EN falls below 0.8V. This matches standard 3.3V/5V GPIO outputs without requiring external inverters or level shifters.
Does MP62261DS-LF-Z support reverse current blocking?
Yes-MP62261DS-LF-Z actively blocks reverse current flow from OUT to IN when disabled. This protects upstream power sources in multi-rail systems and prevents backfeeding during hot-plug events or power sequencing transitions.
What is the purpose of the FLAG pin's 8ms deglitch time?
The 8ms deglitch filter on the open-drain FLAG pin prevents false fault assertions caused by brief inrush currents or capacitive load transients. It ensures only sustained overcurrent or thermal events trigger the fault signal-reducing unnecessary system interrupts or shutdowns.
Can MP62261DS-LF-Z operate at 2.7V input?
Yes-MP62261DS-LF-Z is fully specified from 2.7V to 5.5V input. At 2.7V, RDS(ON) rises to 75mΩ (max), resulting in ≤150mV dropout at 2A, and turn-on time increases to 1.7ms. All protections (OCP, UVLO, thermal) remain functional across this range.
How does thermal shutdown recover after triggering?
Upon thermal shutdown at 140°C, MP62261DS-LF-Z disables the output and remains off until the junction temperature drops to approximately 120°C due to hysteresis. Recovery is automatic and does not require cycling EN or VIN-enabling graceful fault handling in thermally constrained environments.
Is the SOIC8 package lead-free and RoHS compliant?
Yes-the "-LF" suffix in MP62261DS-LF-Z denotes lead-free, RoHS-compliant packaging. The device meets JEDEC J-STD-020 moisture sensitivity level (MSL) 1 and is rated for reflow soldering up to 260°C peak temperature.
What is the maximum continuous output current at 85°C ambient?
MP62261DS-LF-Z delivers 2A continuous current at TA = +85°C when mounted on a standard 4-layer PCB with recommended copper pour. Derating is not required within its specified -40°C to +85°C operating ambient range, thanks to θJA = 90°C/W and thermal shutdown margin.
MP62261DS-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
MP62261DS-LF-Z FAQ
1.How can I place an order for MP62261DS-LF-Z through Aetrix?
Please submit a Request for Quotation (RFQ) for MP62261DS-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 MP62261DS-LF-Z reliable?
The price and inventory of MP62261DS-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 MP62261DS-LF-Z is usually 5 days.
3.What payment methods are accepted for MP62261DS-LF-Z?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MP62261DS-LF-Z transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MP62261DS-LF-Z?
MP62261DS-LF-Z orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MP62261DS-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 MP62261DS-LF-Z?
For technical support, including MP62261DS-LF-Z datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MP62261DS-LF-Z requirements.
6.How does Aetrix verify that MP62261DS-LF-Z is sourced from the original manufacturer or authorized distributors?
All MP62261DS-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 MP62261DS-LF-Z meets industry standards.
7.What is the process for return or replacement of MP62261DS-LF-Z?
All MP62261DS-LF-Z units undergo pre-shipment inspection (PSI). If there is an issue with MP62261DS-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 MP62261DS-LF-Z part is unused and in its original packaging.
Return procedure for MP62261DS-LF-Z:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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