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Monolithic Power Systems Inc. MP62171ES-LF-Z
- Part No.:
- MP62171ES-LF-Z
- Manufacturer:
- Monolithic Power Systems Inc.
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MP62171ES-LF-Z.pdf
- Description:
- IC PWR SWITCH 1:1 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:3,985
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Product details
Overview
MP62171ES-LF-Z from Monolithic Power Systems is a single-channel, active-high enable, current-limited power distribution switch with 1.5A continuous load current capability, 75mΩ RDS(ON), and 2.7V–5.5V input voltage range. It integrates thermal shutdown, under-voltage lockout, reverse current blocking, and an open-drain FLAG output for over-current detection in USB VBUS and portable system power rails.
For engineers reviewing the MP62171ES-LF-Z datasheet, MP62171ES-LF-Z pinout, MP62171ES-LF-Z application, or MP62171ES-LF-Z equivalent, key selection criteria include guaranteed 1.5A current limit accuracy, 8ms FLAG deglitch timing, SOIC8 package thermal performance (θJA = 90°C/W), and active-high EN logic compatibility with USB host controllers.
Technical Context
The MP62171ES-LF-Z implements a precision current-limit architecture using internal sense-FET feedback to maintain constant output current during overload, transitioning to thermal shutdown only if sustained fault heating exceeds 140°C junction temperature. Its UVLO circuit enforces operation only above 1.95V rising-edge threshold with 250mV hysteresis.
FLAG output is open-drain with 8ms deglitch filtering to suppress transient false faults, while reverse current blocking prevents backflow from OUT to IN when disabled. The device supports heavy capacitive loads via controlled turn-on/turn-off timing (Ton = 3ms, Toff = 10ms) and operates with ≤90µA quiescent current in enabled state.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Continuous Load Current | 1.5A - Sustained output current without thermal derating at TA ≤ +85°C in SOIC8 package |
| Current Limit Threshold | 2.3A typical - Trip point initiating constant-current mode under short-circuit conditions |
| RDS(ON) | 75mΩ - Low conduction loss enabling <115mV drop at 1.5A, minimizing self-heating |
| Supply Voltage Range | 2.7V to 5.5V - Direct compatibility with 3.3V and 5V system rails including USB VBUS |
| FLAG Deglitch Time | 8ms - Ensures reliable fault reporting by rejecting sub-8ms current transients |
| Thermal Shutdown Temp | 140°C - Junction temperature threshold triggering automatic disable to prevent permanent damage |
| Quiescent Current | 90µA - Enables low-power standby in battery-operated devices without significant drain |
Pinout & Package
MP62171ES-LF-Z is housed in an 8-pin SOIC package (body size 4.90mm × 3.90mm, 1.27mm pitch) with no exposed pad. Thermal resistance θJA = 90°C/W on standard 4-layer PCB per JESD51-7.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | GND | Power ground reference for internal circuits and current-sense return path |
| 2, 3 | IN | Input voltage supply pins - paralleled for low-impedance connection to 2.7–5.5V source |
| 4 | EN | Active-high enable input - drives internal charge pump to activate MOSFET when ≥2V applied |
| 5 | FLAG | Open-drain fault indicator - pulled low after 8ms deglitch timeout during over-current or UVLO |
| 6, 7, 8 | OUT | Parallel output power terminals - deliver switched current to load with shared current path |
Key Features
| Feature | Design Value |
|---|---|
| Accurate current limiting | Guaranteed 1.6–3A trip range ensures predictable fault response across temperature and voltage |
| No FLAG glitch at power-up | Internal sequencing prevents false fault assertion during VIN ramp, eliminating external RC filters |
| Reverse current blocking | Prevents >0.2µA backflow from OUT to IN when disabled, protecting upstream supplies |
| Under-voltage lockout | 1.95V rising-edge threshold with 250mV hysteresis avoids erratic switching near brownout |
| Thermal shutdown with hysteresis | 140°C shutdown + 20°C hysteresis enables automatic recovery once die cools to ~120°C |
Applications
| USB VBUS Power Switching | Smartphone Peripheral Power Control |
|---|---|
Use Scenario: Switching 5V power to downstream USB ports in host controllers or hubs. IC Role / Device Role / Timing Role: Single-channel power gate with current limiting and fault flag for VBUS rail protection. Use Value: Prevents host port damage during cable shorts or faulty peripherals via 2.3A trip current and 8ms deglitched FLAG reporting. | Use Scenario: Enabling/disabling power to SIM card slots, SD card interfaces, or camera modules in smartphones. IC Role / Device Role / Timing Role: Load switch with reverse current blocking and low quiescent current for battery-sensitive subsystems. Use Value: Eliminates leakage paths (<1µA off-state) and ensures clean power sequencing with 3ms turn-on time. |
| Notebook PC ExpressCard Hot-Swap | Portable GPS Power Management |
Use Scenario: Safe insertion/removal of ExpressCard modules requiring hot-swap power control. IC Role / Device Role / Timing Role: Current-limited distribution switch with UVLO and thermal protection for PCIe-based expansion slots. Use Value: Guarantees 1.5A continuous delivery while limiting inrush and preventing bus collapse during card insertion. | Use Scenario: Managing power to GPS RF front-end and baseband ICs in handheld navigation devices. IC Role / Device Role / Timing Role: High-side load switch with precise current limit and thermal monitoring for GNSS antenna LNA supply. Use Value: Maintains stable 3.3V/5V rail under varying RF load conditions and shuts down before junction exceeds 140°C. |
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 | 1.5A limit, 120mΩ RDS(ON), no reverse blocking, 2.7–5.5V range | Lacks reverse current blocking and FLAG deglitch; requires external pull-up on fault pin | Choose when lower cost is prioritized over reverse blocking and integrated fault filtering |
| ON Semi NCP45520MUTBG | 2.5A limit, 38mΩ RDS(ON), active-low EN, 2.5–5.5V range | Higher current rating but incompatible EN polarity and narrower input range | Choose for higher current density and lower conduction loss where active-low control is acceptable |
Compared with TPS2051BDBVR and NCP45520MUTBG, MP62171ES-LF-Z uniquely combines active-high EN, reverse current blocking, and 8ms hardware-deglitched FLAG in SOIC8-enabling simpler USB VBUS designs without external components.
Availability
MP62171ES-LF-Z is available at Aetrix Electronics and suitable for USB power distribution, smartphone peripheral management, notebook PC ExpressCard hot-swap, and portable GPS device power control requiring stable component supply and RoHS-compliant packaging.
Supply support for MP62171ES-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 with global design and support operations.
The MP6217x series belongs to MPS's load switch product line, engineered specifically for robust, low-footprint power rail protection in space-constrained portable and USB-powered systems.
FAQ
What is the maximum allowable continuous current for MP62171ES-LF-Z at 85°C ambient?
The MP62171ES-LF-Z guarantees 1.5A continuous current at TA = +85°C in SOIC8 package, validated by thermal testing with θJA = 90°C/W and maximum junction temperature limited to 125°C under steady-state conditions.
Does MP62171ES-LF-Z support reverse current blocking when disabled?
Yes-MP62171ES-LF-Z blocks reverse current flow from OUT to IN with leakage <0.2µA when disabled, confirmed by electrical characterization at VOUT = 5.5V and VIN = GND per datasheet Section 3, Table "Reverse Leakage Current".
How does the FLAG pin behave during power-up?
The FLAG pin remains high-impedance (not pulled low) during VIN ramp and initial power-up, with no deglitch filtering applied-preventing false fault assertions. Deglitch functionality activates only after the device reaches operational bias conditions.
What is the minimum input voltage required to enable MP62171ES-LF-Z?
MP62171ES-LF-Z requires ≥1.95V on the IN pin to exit under-voltage lockout (UVLO); below this, the device remains disabled regardless of EN state. UVLO hysteresis is 250mV, so re-enabling occurs at ≥2.2V.
Can MP62171ES-LF-Z drive a 100µF output capacitor safely?
Yes-the device specifies 3ms turn-on time with CL = 100µF and RL = 5.5Ω, confirming controlled slew rate and absence of destructive inrush current. No external inrush limiters are needed for capacitors ≤100µF.
Is the SOIC8 package of MP62171ES-LF-Z lead-free and RoHS compliant?
Yes-the "-LF" suffix in MP62171ES-LF-Z explicitly denotes lead-free, RoHS-compliant finish per JEDEC J-STD-609, verified by MPS material declarations and Aetrix traceable sourcing documentation.
MP62171ES-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):
- 1.5A
- Rds On (Typ):
- 75mOhm
- Input Type:
- -
- Features:
- 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-SOIC
MP62171ES-LF-Z FAQ
1.How can I place an order for MP62171ES-LF-Z through Aetrix?
Please submit a Request for Quotation (RFQ) for MP62171ES-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 MP62171ES-LF-Z reliable?
The price and inventory of MP62171ES-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 MP62171ES-LF-Z is usually 5 days.
3.What payment methods are accepted for MP62171ES-LF-Z?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MP62171ES-LF-Z transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MP62171ES-LF-Z?
MP62171ES-LF-Z orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MP62171ES-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 MP62171ES-LF-Z?
For technical support, including MP62171ES-LF-Z datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MP62171ES-LF-Z requirements.
6.How does Aetrix verify that MP62171ES-LF-Z is sourced from the original manufacturer or authorized distributors?
All MP62171ES-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 MP62171ES-LF-Z meets industry standards.
7.What is the process for return or replacement of MP62171ES-LF-Z?
All MP62171ES-LF-Z units undergo pre-shipment inspection (PSI). If there is an issue with MP62171ES-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 MP62171ES-LF-Z part is unused and in its original packaging.
Return procedure for MP62171ES-LF-Z:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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