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Monolithic Power Systems Inc. MP6219DN-LF
- Part No.:
- MP6219DN-LF
- Manufacturer:
- Monolithic Power Systems Inc.
- Package:
- 8-SOIC (0.154", 3.90mm Width) Exposed Pad
- Datasheet:
-
MP6219DN-LF.pdf
- Description:
- IC PWR SWITCH N-CHAN 1:1 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,632
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Product details
Overview
MP6219DN-LF from Monolithic Power Systems is a programmable current-limit power distribution switch with integrated 44mΩ N-channel MOSFET, 5V input optimization, adjustable 2A current limit via external resistor (RPRGM), thermal shutdown, UVLO (3.6V typ), and overvoltage clamping (6.65V typ). It serves as a protected high-side power switch in USB and notebook PC power rails.
For engineers reviewing the MP6219DN-LF datasheet, MP6219DN-LF pinout, MP6219DN-LF application, or MP6219DN-LF equivalent, this device requires attention to EN/FAULT tri-state signaling, RPRGM-resistor–set trip/hold current thresholds, SOIC8E thermal pad layout, and its non-recommended-for-new-designs status versus MP5075.
Technical Context
The MP6219DN-LF integrates a charge-pump–driven high-side N-channel FET with sense-FET–based current limiting. Its EN/FAULT pin operates as a bidirectional three-level interface (low/mid/high) for enable control and thermal fault reporting without external pull-up.
It implements dual-stage overcurrent protection: fast trip current (3.0A typ at RPRGM=24Ω) followed by constant-current hold mode (2.0A typ), coupled with UVLO (3.6V turn-on, 0.1V hysteresis) and output voltage clamping (6.65V) to protect downstream loads from transients.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 5V ±10% (4.5–5.5V); operation outside range triggers UVLO or overvoltage clamp |
| On-Resistance (RDS(on)) | 44mΩ typ at TJ=25°C; enables <176mW conduction loss at 2A load |
| Programmable Current Limit | Adjustable up to 2A hold current via RPRGM (e.g., 24Ω → 2.0A hold / 3.0A trip) |
| Thermal Shutdown Threshold | 175°C junction temperature; latches off until EN/FAULT pulled low or UVLO cycled |
| Soft-Start Rise Time | 1.1ms (10%–90%); limits inrush into heavy capacitive loads (e.g., 1000µF USB ports) |
| EN/FAULT Logic Levels | Low (≤0.5V): disable & fault clear; Mid (0.8–2.0V): thermal fault signal; High (≥2.5V): enable |
| Output Overvoltage Clamp | 6.65V typ; protects connected peripherals from input surges above 5V rail |
Pinout & Package
MP6219DN-LF uses an 8-pin SOIC8E package with exposed thermal pad (pin 8), optimized for PCB heat dissipation via vias to internal ground plane. Pin 6 is no-connect and must remain floating.
| 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 carrying switched 5V to load; share current path with 44mΩ FET |
| 5 IPRGM | Current Sense Reference | Connects to RPRGM resistor; sets trip/hold current thresholds via internal sense-FET ratio |
| 6 N.C. | No Connect | Unbonded pin; must be left unconnected per datasheet layout guidance |
| 7 EN/FAULT | Tri-State Control & Fault Reporting | Bidirectional pin: float or pull high to enable; driven mid-level during thermal fault; pulled low to clear fault |
| 8 GND | Ground & Thermal Pad | Exposes internal die substrate; requires direct PCB copper connection and thermal vias for θJA=50°C/W |
Key Features
| Feature | Design Value |
|---|---|
| Integrated 44mΩ High-Side FET | Reduces conduction loss to ≤176mW at 2A, minimizing board-level heating without heatsink |
| Adjustable Current Limit (up to 2A) | Set via single external resistor (RPRGM); supports precise trip/hold current tuning across production lots |
| 1.1ms Soft-Start | Controls dV/dt at power-up to prevent inrush-induced voltage droop on shared 5V buses |
| Three-Level EN/FAULT Interface | Enables system-level fault coordination: wired-NOR multi-device shutdown and thermal event detection |
| UVLO + Output Overvoltage Clamp | Ensures safe startup only above 3.6V and clamps output to 6.65V during input surges, protecting USB peripherals |
Applications
| USB Power Distribution | PCI Bus Power |
|---|---|
|
Use Scenario: Providing controlled 5V power to USB 2.0 peripheral ports with hot-plug inrush suppression. IC Role / Device Role / Timing Role: High-side power switch with programmable current limit and soft-start timing. Use Value: Prevents host port brownout during plug-in by limiting peak inrush to ≤2A and clamping transient overvoltage to 6.65V. |
Use Scenario: Delivering regulated 5V to PCI add-in cards requiring fault-isolated power domains. IC Role / Device Role / Timing Role: Protected power distribution switch with thermal latch and EN/FAULT fault signaling. Use Value: Enables system-level thermal fault detection across multiple slots via shared EN/FAULT bus without additional logic. |
| Notebook PC Power Rails | Heavy Capacitive Loads |
|
Use Scenario: Supplying 5V to embedded controllers or display backlight drivers with tight thermal constraints. IC Role / Device Role / Timing Role: Current-limited high-side switch with 175°C thermal shutdown and exposed-pad thermal management. Use Value: Maintains safe junction temperature (<125°C operating, <150°C max) under sustained 2A load using standard 4-layer PCB copper area. |
Use Scenario: Powering FPGA configuration circuits or SSD power rails with >1000µF bulk capacitance. IC Role / Device Role / Timing Role: Inrush current limiter with 1.1ms soft-start rise time and hold-current regulation. Use Value: Limits peak charging current to 2A while ramping VOUT linearly, avoiding input rail collapse during cold start. |
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 |
|---|---|---|---|
| MP5075 | Successor device; lower RDS(on) (28mΩ), higher current capability (3A), improved thermal performance (θJA=40°C/W) | Designed for new designs requiring higher efficiency and longer thermal fault hold time | Select MP5075 for new projects; MP6219DN-LF remains viable for legacy repair or cost-sensitive replacements where 44mΩ and 2A suffice |
| TPS2051BDR | Fixed 1.5A current limit, no RPRGM adjustment; lacks overvoltage clamp and EN/FAULT mid-level fault signaling | Suitable for basic USB port power switching without system-level thermal coordination | Choose TPS2051BDR only when programmability, OVP, and multi-device fault bus are unnecessary |
Compared with MP5075 and TPS2051BDR, MP6219DN-LF uniquely balances adjustable current limiting, integrated overvoltage protection, and tri-state EN/FAULT signaling-making it suitable for legacy systems needing coordinated thermal fault response but not requiring the efficiency gains of newer alternatives.
Availability
MP6219DN-LF is available at Aetrix Electronics and suitable for USB power distribution, notebook PC subsystems, and PCI bus power applications requiring stable component supply and long-term obsolescence support.
Supply support for MP6219DN-LF 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 mixed-signal ICs for power management, motion control, and automotive applications.
The MP6219 belongs to MPS's programmable power distribution switch product line, designed specifically for 5V system-level protection with adjustable current limiting, thermal fault coordination, and robust transient immunity.
FAQ
What does "NOT RECOMMENDED FOR NEW DESIGNS" mean for MP6219DN-LF?
This designation indicates MPS has superseded MP6219DN-LF with the MP5075, which offers lower on-resistance (28mΩ vs. 44mΩ), higher current rating (3A vs. 2A), and improved thermal performance. MP6219DN-LF remains fully qualified and supported for existing designs and repair programs but is not advised for newly initiated projects.
How is current limit set and verified on MP6219DN-LF?
Current limit is set by connecting an external resistor (RPRGM) between IPRGM (pin 5) and OUT (pins 2–4). For example, a 24Ω resistor yields 2.0A hold current and 3.0A trip current. Verification requires measuring load current during short-circuit testing while monitoring EN/FAULT voltage level for mid-level thermal fault indication.
Why is the EN/FAULT pin described as "tri-state" and how is it used?
The EN/FAULT pin functions as a bidirectional, three-level interface: low (≤0.5V) disables output and clears faults; mid (0.8–2.0V) signals thermal shutdown; high (≥2.5V) enables output if fault flag is clear. Its weak internal 28µA pull-up eliminates need for external resistors in wired-NOR configurations across multiple devices.
Can MP6219DN-LF drive a 1000µF output capacitor safely?
Yes-its 1.1ms soft-start rise time controls inrush current into large capacitors. With 2A hold current and 44mΩ RDS(on), peak power dissipation during ramp-up remains within safe limits. Layout best practice requires placing the input capacitor close to pin 1 (IN) and using adequate PCB copper area on the exposed pad (pin 8) for thermal management.
What happens during thermal shutdown and how is recovery performed?
At 175°C junction temperature, MP6219DN-LF latches off, drives EN/FAULT to mid-level (0.8–2.0V), and sets an internal fault flag. Recovery requires pulling EN/FAULT low to reset the flag or cycling input voltage below UVLO threshold (≤3.2V) to trigger automatic reset upon re-rising input.
Is the SOIC8E package lead-free and RoHS-compliant?
Yes-MP6219DN-LF suffix "-LF" explicitly denotes lead-free, RoHS-compliant packaging. The SOIC8E package uses matte tin plating and meets JEDEC MS-012BA specifications, including coplanarity ≤0.004" and exposed thermal pad compatible with standard reflow profiles.
Does MP6219DN-LF provide reverse current blocking?
No-the device contains a single N-channel high-side FET without body-diode reversal blocking. When disabled, output can back-drive into input through the intrinsic FET body diode. External reverse-blocking diodes or complementary FETs are required in applications demanding bidirectional isolation.
MP6219DN-LF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Monolithic Power Systems Inc.
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width) Exposed Pad
- Series:
- -
- Packaging:
- Tube
- Product Status:
- Active
- 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 FAQ
1.How can I place an order for MP6219DN-LF through Aetrix?
Please submit a Request for Quotation (RFQ) for MP6219DN-LF 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 reliable?
The price and inventory of MP6219DN-LF 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 is usually 5 days.
3.What payment methods are accepted for MP6219DN-LF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MP6219DN-LF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MP6219DN-LF?
MP6219DN-LF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MP6219DN-LF 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?
For technical support, including MP6219DN-LF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MP6219DN-LF requirements.
6.How does Aetrix verify that MP6219DN-LF is sourced from the original manufacturer or authorized distributors?
All MP6219DN-LF 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 meets industry standards.
7.What is the process for return or replacement of MP6219DN-LF?
All MP6219DN-LF units undergo pre-shipment inspection (PSI). If there is an issue with MP6219DN-LF, 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 part is unused and in its original packaging.
Return procedure for MP6219DN-LF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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