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Monolithic Power Systems Inc. MP6219DN-LF-Z
- Part No.:
- MP6219DN-LF-Z
- Manufacturer:
- Monolithic Power Systems Inc.
- Package:
- 8-SOIC (0.154", 3.90mm Width) Exposed Pad
- Datasheet:
-
MP6219DN-LF-Z.pdf
- Description:
- IC PWR SWITCH N-CHAN 1:1 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:4,566
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Product details
Overview
MP6219DN-LF-Z from Monolithic Power Systems is a programmable current-limit power distribution switch with integrated 44mΩ FET, adjustable 2A current limit via external resistor (RPRGM), and active-high enable. It provides overcurrent, thermal shutdown, UVLO, and output overvoltage protection in USB and notebook PC power rails.
For engineers reviewing the MP6219DN-LF-Z datasheet, MP6219DN-LF-Z pinout, MP6219DN-LF-Z application, or MP6219DN-LF-Z equivalent, key selection criteria include programmable trip/hold current thresholds, EN/FAULT bidirectional fault signaling, SOIC8E exposed-pad thermal performance, and 5V ±10% input compliance.
Technical Context
The MP6219DN-LF-Z integrates a charge-pump–driven N-channel power FET with sense-FET–based current limiting. Its EN/FAULT pin operates as a tri-state, bidirectional interface-pulling low to disable, floating or high to enable, and settling at 0.8–2.0V mid-level during thermal fault to flag latched shutdown.
Current limit is set by RPRGM between IPRGM and OUT: 24Ω yields 2.0A hold / 3.0A trip; UVLO activates at 3.2–4.0V with 0.1V hysteresis; output clamping limits overvoltage to 5.95–7.35V; soft-start rise time is fixed at 1.1ms.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 5V ±10% - Optimized for stable 5V rail operation; UVLO prevents turn-on below 3.2V. |
| On-Resistance (RDS(on)) | 44mΩ typ. at TJ=25°C - Enables <176mW conduction loss at 2A, minimizing thermal rise. |
| Programmable Current Limit | Up to 2A hold / 3A trip - Set by external RPRGM; supports inrush control and short-circuit foldback. |
| Thermal Shutdown Threshold | 175°C - Latched shutdown until EN/FAULT pulled low or VIN cycled below UVLO. |
| Enable Logic | Active-high (VIH ≥2.5V) with 28µA internal pull-up - No external pull-up required; enables wired-NOR fault bus. |
| Output Overvoltage Clamp | 5.95–7.35V - Protects downstream 5V logic from transient overvoltage events. |
| Soft-Start Rise Time | 1.1ms - Controls dV/dt to limit inrush into heavy capacitive loads (e.g., USB peripherals). |
Pinout & Package
MP6219DN-LF-Z uses an 8-pin SOIC8E package with exposed thermal pad (θJA = 50°C/W, θJC = 10°C/W). The exposed pad must be soldered to PCB ground plane for thermal integrity and EMI reduction.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 IN | Power Input | 5V nominal supply input; connects to upstream 5V rail with local decoupling capacitor. |
| 2,3,4 OUT | Power Output | Parallel-output pins delivering switched 5V to load; share current path with 44mΩ FET. |
| 5 IPRGM | Current Limit Sense | Connects to external RPRGM (to OUT) to program trip/hold current thresholds. |
| 6 N.C. | No Connect | Internally unconnected; must remain floating per design-no routing or soldering. |
| 7 EN/FAULT | Bidirectional Control/Status | Tri-state I/O: float/high = enable; low = disable/clear fault; mid-level (0.8–2.0V) = thermal fault flag. |
| 8 GND | Ground Reference & Thermal Pad | IC reference node and primary thermal path; exposed pad must be connected to solid GND plane. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated 44mΩ Power FET | Reduces conduction loss to ≤176mW at 2A, enabling compact layout without external MOSFET or gate driver. |
| Adjustable Current Limit (2A max) | Set via single external resistor (RPRGM); supports precise inrush control and fault-current tailoring per load. |
| EN/FAULT Bidirectional Interface | Enables system-level fault bus: multiple MP6219 devices can share one EN/FAULT line for coordinated shutdown. |
| 1.1ms Soft-Start | Controls output voltage slew rate to prevent supply droop and EMI during hot-plug of USB or PCIe loads. |
| UL Recognized Component (E322138) | Validated for safety-critical power distribution in commercial computing and peripheral applications. |
Applications
| USB Power Distribution | PCI Bus Power |
|---|---|
|
Use Scenario: Hot-plug detection and power sequencing for USB 2.0/3.0 host ports feeding peripherals with large input capacitance. IC Role / Device Role / Timing Role: Programmable current-limit switch controlling 5V VBUS delivery; soft-start prevents inrush-induced host reset. Use Value: Prevents overcurrent trips during cable insertion while maintaining full 500mA/900mA USB compliance under steady state. |
Use Scenario: Isolated 5V power switching for PCI Express add-in cards requiring controlled power-up and fault isolation. IC Role / Device Role / Timing Role: Load-switch IC managing slot power enable and reporting thermal/fault status via shared EN/FAULT bus. Use Value: Enables hot-plug-safe power delivery with automatic shutdown on card short-circuit, protecting motherboard power plane. |
| Notebook PC Power Rails | Heavy Capacitive Loads |
|
Use Scenario: Secondary 5V rail management for USB-C PD accessories, display interfaces, or SSD power domains in ultrabooks. IC Role / Device Role / Timing Role: Protected power switch with UVLO and overvoltage clamp ensuring rail stability across battery/supply transitions. Use Value: Maintains clean 5V output during AC adapter disconnect or battery sag, preventing data corruption in attached peripherals. |
Use Scenario: Powering FPGA I/O banks, DDR termination supplies, or LED drivers with >1000µF bulk capacitance. IC Role / Device Role / Timing Role: Inrush current limiter using programmable hold current to avoid supply collapse during bulk cap charging. Use Value: Limits peak inrush to ≤2A while sustaining full load current post-charge, eliminating need for discrete NTC or timed relays. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar programmable current-limit power distribution switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MP5075GQ | Higher integration: 2.5A limit, 22mΩ RDS(on), integrated 1.1ms soft-start, no external RPRGM needed. | Designed for new designs replacing MP6219; supports tighter current tolerance and lower conduction loss. | Select MP5075GQ for new designs requiring higher efficiency, smaller footprint (QFN-12), and simplified BOM. |
| TPS2051BDBVR | Fixed 1.5A current limit, no programmability; 70mΩ RDS(on); no thermal latch or EN/FAULT bidirectional signaling. | Limited to basic USB port power switching where programmability and fault bus coordination are unnecessary. | Choose TPS2051BDBVR only for legacy cost-sensitive USB hubs lacking advanced fault diagnostics. |
Compared with MP5075GQ, MP6219DN-LF-Z offers field-programmable current limit but higher RDS(on) and larger SOIC8E footprint; versus TPS2051BDBVR, it delivers superior fault visibility and thermal resilience at the cost of design flexibility.
Availability
MP6219DN-LF-Z is available at Aetrix Electronics and suitable for USB power distribution, notebook PC subsystems, and PCI Express auxiliary power rails requiring stable component supply and long-term industrial availability.
Supply support for MP6219DN-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 for power conversion, motor drive, and interface applications.
The MP6219 belongs to MPS's programmable load switch product line, engineered for robust 5V power rail protection in computing, peripheral, and embedded systems with demanding inrush and fault-handling requirements.
FAQ
What is the function of the N.C. pin (Pin 6) on MP6219DN-LF-Z?
Pin 6 is internally unconnected and must remain electrically floating-no trace, solder, or component should be attached. Routing or grounding this pin violates the SOIC8E layout specification and may compromise thermal performance or cause unpredictable behavior due to parasitic coupling.
How does the EN/FAULT pin indicate thermal shutdown?
During thermal shutdown, the EN/FAULT pin is actively driven to a mid-level voltage (0.80–2.0V), distinct from its low (≤0.5V) disabled or high (≥2.5V) enabled states. This voltage level signals a latched fault condition and requires pulling the pin low to clear the internal fault flag before re-enabling.
Can MP6219DN-LF-Z operate reliably at 5.5V input?
Yes-its recommended operating input is 5V ±10%, covering 4.5V to 5.5V. Absolute maximum rating is 8V on IN/OUT, but UVLO hysteresis (3.2–4.0V) and overvoltage clamp (5.95–7.35V) ensure safe operation across this range without derating.
What is the minimum RPRGM value for 2A hold current?
A 24Ω resistor between IPRGM and OUT sets 2.0A hold current and 3.0A trip current per Table 1. Using <24Ω risks exceeding the 2.7A max trip current limit and may trigger premature foldback under transient loads.
Why is the exposed thermal pad critical for MP6219DN-LF-Z?
The exposed pad is electrically GND and serves as the primary thermal conduction path. Without proper soldering to a multi-layer GND plane with thermal vias, θJA degrades beyond 50°C/W, causing thermal shutdown at ≤600mA continuous load-even at 25°C ambient.
Does MP6219DN-LF-Z support parallel operation for higher current?
No-its current limit is set per device via individual RPRGM, and EN/FAULT pin coordination does not synchronize switching edges. Parallel use risks current imbalance and thermal runaway; for >2A, select MP5075GQ or discrete FET solutions instead.
Is MP6219DN-LF-Z RoHS compliant?
Yes-the "-LF" suffix denotes lead-free, RoHS-compliant packaging. The full part number MP6219DN-LF-Z meets JEDEC J-STD-020 moisture sensitivity level 3 and RoHS Directive 2011/65/EU requirements.
MP6219DN-LF-Z Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Monolithic Power Systems Inc.
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width) 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:
- 4.5V ~ 5.5V
- Voltage - Supply (Vcc/Vdd):
- Not Required
- Current - Output (Max):
- 2A
- Rds On (Typ):
- 44mOhm
- Input Type:
- -
- Features:
- 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:
- 8-SOICE
MP6219DN-LF-Z FAQ
1.How can I place an order for MP6219DN-LF-Z through Aetrix?
Please submit a Request for Quotation (RFQ) for MP6219DN-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 MP6219DN-LF-Z reliable?
The price and inventory of MP6219DN-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 MP6219DN-LF-Z is usually 5 days.
3.What payment methods are accepted for MP6219DN-LF-Z?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MP6219DN-LF-Z transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MP6219DN-LF-Z?
MP6219DN-LF-Z orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MP6219DN-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 MP6219DN-LF-Z?
For technical support, including MP6219DN-LF-Z datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MP6219DN-LF-Z requirements.
6.How does Aetrix verify that MP6219DN-LF-Z is sourced from the original manufacturer or authorized distributors?
All MP6219DN-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 MP6219DN-LF-Z meets industry standards.
7.What is the process for return or replacement of MP6219DN-LF-Z?
All MP6219DN-LF-Z units undergo pre-shipment inspection (PSI). If there is an issue with MP6219DN-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 MP6219DN-LF-Z part is unused and in its original packaging.
Return procedure for MP6219DN-LF-Z:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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