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Monolithic Power Systems Inc. MP62350ES-LF-Z
- Part No.:
- MP62350ES-LF-Z
- Manufacturer:
- Monolithic Power Systems Inc.
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MP62350ES-LF-Z.pdf
- Description:
- IC PWR SWITCH 1:2 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:4,138
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Product details
Overview
MP62350ES-LF-Z from Monolithic Power Systems is a dual-channel, active-low power distribution switch with 500mA continuous current limit per channel, 85mΩ RDS(on), and integrated output discharge (100Ω path). It operates from 2.7V to 5.5V input and delivers overcurrent protection via constant-current limiting and thermal shutdown (140°C trip, 20°C hysteresis), used in USB power rails and hot-swap modules of portable computing systems.
For engineers reviewing the MP62350ES-LF-Z datasheet, MP62350ES-LF-Z pinout, MP62350ES-LF-Z application, or MP62350ES-LF-Z equivalent, key selection criteria include guaranteed 550–1100mA current limit accuracy, dual independent enable/flag signaling, reverse current blocking, and SOIC8 package compatibility with industrial temperature range (–20°C to +85°C).
Technical Context
The MP62350ES-LF-Z implements two independent high-side MOSFET switches with matched current-limit thresholds and dedicated open-drain FLAG outputs per channel. Each channel features under-voltage lockout (1.95V rising edge), 8ms deglitch filtering on FLAG, and automatic recovery after thermal shutdown when junction temperature falls to ~120°C.
Its internal architecture integrates reverse-current blocking, output discharge resistors (100Ω), and logic-compatible EN inputs (active-low for MP62350 variant). The device enforces current limiting before thermal shutdown activation, ensuring safe operation during sustained overload without external components.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Continuous Current | 500mA per channel - supports stable load switching for USB peripherals and auxiliary rails without derating at full ambient range. |
| Current Limit Range | 550–1100mA - tight tolerance enables predictable fault response across voltage and temperature conditions. |
| RDS(on) | 85mΩ typical - minimizes conduction loss (≤42.5mW at 500mA) and self-heating in SOIC8 package. |
| Supply Voltage Range | 2.7V to 5.5V - compatible with 3.3V and 5V system rails, including battery-backed and adapter-fed domains. |
| Thermal Shutdown | 140°C with 20°C hysteresis - prevents permanent damage during short-circuit events while enabling auto-recovery. |
| FLAG Deglitch Time | 4–15ms - suppresses transient false faults without requiring external RC filters. |
| Output Discharge Resistance | 100Ω - safely discharges 100μF output caps in <10ms, meeting USB hot-unplug timing requirements. |
Pinout & Package
MP62350ES-LF-Z is housed in an 8-pin SOIC package (body size 4.9mm × 3.9mm, 1.27mm pitch), rated for –20°C to +85°C operating temperature and RoHS-compliant (LF suffix).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 EN1 | Active-Low Enable Input | Drives Channel 1 ON when pulled low; TTL/CMOS-compatible with 0.8V logic low threshold. |
| 2 FLAG1 | Open-Drain Fault Output | Asserts low after 8ms deglitch upon overcurrent or thermal fault on Channel 1. |
| 3 FLAG2 | Open-Drain Fault Output | Asserts low after 8ms deglitch upon overcurrent or thermal fault on Channel 2. |
| 4 EN2 | Active-Low Enable Input | Drives Channel 2 ON when pulled low; independent control enables staggered power-up sequencing. |
| 5 OUT2 | Channel 2 Power Output | Switched 2.7–5.5V output with reverse-current blocking and 100Ω discharge path to GND. |
| 6 GND | Power & Signal Ground | Common reference for IN, EN, FLAG, and OUT pins; requires low-impedance PCB plane connection. |
| 7 IN | Input Supply Rail | Shared 2.7–5.5V input for both channels; requires ≥10μF bulk capacitance for transient immunity. |
| 8 OUT1 | Channel 1 Power Output | Switched 2.7–5.5V output with reverse-current blocking and 100Ω discharge path to GND. |
Key Features
| Feature | Design Value |
|---|---|
| Dual Independent Enable Control | EN1/EN2 allow per-channel power sequencing and dynamic load management without shared logic. |
| Accurate Current Limiting | 550–1100mA trip range ensures consistent fault response across process, voltage, and temperature variations. |
| Integrated Output Discharge | 100Ω internal resistor eliminates need for external discharge FETs, reducing BOM count and board area. |
| No FLAG Glitch During Power-Up | Internal flag initialization prevents spurious fault assertions during VIN ramp, simplifying system startup. |
| Reverse Current Blocking | Prevents backflow from OUTx to IN during disable or input dropout, protecting upstream sources. |
Applications
| USB Peripheral Power Switching | PC Card Hot-Swap Interface |
|---|---|
|
Use Scenario: Enabling/disabling USB ports in notebook PCs during sleep/wake transitions or port enumeration. IC Role / Device Role / Timing Role: Dual high-side switch controlling VBUS delivery to two downstream USB devices with independent enable and fault reporting. Use Value: Prevents bus contention and backfeed during hot-plug; 100Ω discharge meets USB 2.0 hot-unplug discharge time spec (<20ms for 10μF). |
Use Scenario: Isolating PCMCIA/CardBus peripherals during insertion/removal in industrial laptops and ruggedized terminals. IC Role / Device Role / Timing Role: High-side power gate with UVLO and thermal protection to prevent inrush damage during card insertion. Use Value: Enables safe hot-swap by limiting inrush to ≤500mA and asserting FLAG within 8ms if short occurs during insertion. |
| Notebook PC Auxiliary Rails | Telecom Line Card Power Management |
|
Use Scenario: Powering display backlight drivers, audio codecs, or WWAN modules only when active. IC Role / Device Role / Timing Role: Load switch providing controlled turn-on (3ms Ton) and fast turn-off (10ms Toff) with output discharge. Use Value: Reduces standby leakage via 1μA shutdown current and eliminates residual charge that could cause latch-up in downstream ICs. |
Use Scenario: Distributing 3.3V/5V power to modular line interface cards in carrier-grade access equipment. IC Role / Device Role / Timing Role: Dual-channel protected power switch with independent fault flags for remote monitoring via baseboard controller. Use Value: Enables field-serviceable card replacement without powering down entire chassis; FLAG signals feed into system health monitoring. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-channel current-limited power distribution applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MP5095DJ-LF-Z | Single-channel, 5.5V max, 2.5A current limit, 20mΩ RDS(on), no output discharge | Higher current capacity but lacks dual-channel integration and discharge function | Preferred for new designs where higher current per rail and smaller footprint (QFN-8) are critical |
| TPS22965DSGR | Single-channel, 5.5V max, 2A current limit, 29mΩ RDS(on), no thermal shutdown, no discharge | Lower RDS(on) but no thermal protection or discharge; requires external FLAG debouncing | Used where ultra-low conduction loss is prioritized and thermal risk is mitigated externally |
Compared with MP62350ES-LF-Z, MP5095DJ-LF-Z offers higher current and lower RDS(on) in a smaller package but sacrifices dual-channel integration and output discharge-making it suitable for consolidated single-rail designs. TPS22965DSGR provides lower on-resistance but lacks built-in thermal protection and discharge, increasing system-level design complexity.
Availability
MP62350ES-LF-Z is available at Aetrix Electronics and suitable for USB power distribution, PC Card hot-swap interfaces, and notebook PC auxiliary rail management requiring stable component supply and legacy design support.
Supply support for MP62350ES-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 design centers across Asia and North America.
The MP62350/MP62351 product line targets compact, thermally robust power distribution in space-constrained portable electronics, emphasizing integrated protection and minimal external component count.
FAQ
Is MP62350ES-LF-Z pin-compatible with MP62351ES-LF-Z?
No. MP62350ES-LF-Z uses active-low EN1/EN2 inputs, while MP62351ES-LF-Z uses active-high enables. Pin numbering and functions match, but logic polarity differs-requiring schematic and firmware updates for substitution.
What is the maximum capacitive load supported on OUT1/OUT2?
The device supports up to 100μF output capacitance with guaranteed 10ms turn-off time and stable discharge behavior. Larger loads may extend turn-off time beyond specification and require verification of inrush current compliance.
Does MP62350ES-LF-Z provide reverse-voltage protection?
No. It provides reverse-current blocking (preventing OUT-to-IN backflow when disabled), but does not protect against reverse input voltage applied to the IN pin-external diode or protection circuitry is required for such cases.
Can FLAG1 and FLAG2 be wire-OR'd together?
Yes. Both are open-drain outputs with identical electrical specs (VOL ≤ 0.4V at 5mA sink). A single pull-up resistor can monitor combined fault status, though individual channel diagnosis is lost.
Why is MP62350ES-LF-Z marked "Not Recommended for New Designs"?
MPS has superseded this part with MP5095, which offers higher current, lower RDS(on), smaller QFN packaging, and improved thermal performance-while maintaining functional overlap for most applications.
What is the minimum input voltage for reliable EN logic recognition?
EN inputs recognize logic low at ≤0.8V and logic high at ≥2.0V. Reliable enable/disable operation is guaranteed down to VIN = 2.7V, with EN thresholds independent of input voltage due to internal level-shifting.
How does thermal shutdown interact with current limiting?
Current limiting activates first during overload; thermal shutdown engages only if constant-current mode sustains long enough to raise junction temperature to 140°C. Once tripped, the device remains off until die cools to ~120°C, then auto-recovers.
MP62350ES-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:
- 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-SOIC
MP62350ES-LF-Z FAQ
1.How can I place an order for MP62350ES-LF-Z through Aetrix?
Please submit a Request for Quotation (RFQ) for MP62350ES-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 MP62350ES-LF-Z reliable?
The price and inventory of MP62350ES-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 MP62350ES-LF-Z is usually 5 days.
3.What payment methods are accepted for MP62350ES-LF-Z?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MP62350ES-LF-Z transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MP62350ES-LF-Z?
MP62350ES-LF-Z orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MP62350ES-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 MP62350ES-LF-Z?
For technical support, including MP62350ES-LF-Z datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MP62350ES-LF-Z requirements.
6.How does Aetrix verify that MP62350ES-LF-Z is sourced from the original manufacturer or authorized distributors?
All MP62350ES-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 MP62350ES-LF-Z meets industry standards.
7.What is the process for return or replacement of MP62350ES-LF-Z?
All MP62350ES-LF-Z units undergo pre-shipment inspection (PSI). If there is an issue with MP62350ES-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 MP62350ES-LF-Z part is unused and in its original packaging.
Return procedure for MP62350ES-LF-Z:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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