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Monolithic Power Systems Inc. MP6001DN-LF-Z
- Part No.:
- MP6001DN-LF-Z
- Manufacturer:
- Monolithic Power Systems Inc.
- Package:
- 8-SOIC (0.154", 3.90mm Width) Exposed Pad
- Datasheet:
-
MP6001DN-LF-Z.pdf
- Description:
- IC REG BST FLYBACK ADJ 2A 8SOICE
- Quantity:
- Payment:
- Shipping:
Inventory:2,000
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Product details
Overview
MP6001DN-LF-Z from Monolithic Power Systems is a monolithic flyback/forward DC-DC converter IC with an integrated 150V/0.9Ω N-channel power MOSFET, fixed-frequency peak-current-mode control, programmable switching frequency (55–550 kHz), and full protection suite including over-voltage, under-voltage, over-current, short-circuit, and thermal shutdown. It delivers up to 15W output power and supports isolated telecom-grade 5V@3A PoE applications.
For engineers reviewing the MP6001DN-LF-Z datasheet, MP6001DN-LF-Z pinout, MP6001DN-LF-Z application, or MP6001DN-LF-Z equivalent, this controller enables compact, thermally robust AC/DC and isolated DC/DC designs in telecom infrastructure, VoIP phones, and distributed power systems where high-voltage startup (10–100V input), zero-load regulation, and optocoupler-based feedback are required.
Technical Context
The MP6001DN-LF-Z implements a single-ended primary-inductor converter (SEPIC/boost/flyback/forward) architecture with peak-current-mode PWM control, internal slope compensation, and line feed-forward duty-cycle limiting (67.5% max at VLINE = 1.3V, decreasing linearly with rising input). Its 100V high-voltage startup circuit charges VCC from VIN, enabling operation without auxiliary winding during initial power-up.
It features direct optocoupler interface bypassing the internal error amplifier for isolated feedback, cycle-by-cycle current limiting with 2A threshold, soft-start with auto-restart on open/shorted output, and thermal shutdown at 150°C with 30°C hysteresis. The RT pin sets oscillator frequency or accepts external sync clock (50–150ns pulse width, >3.5V peak).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | +10V to +100V - supports wide-range telecom inputs (36–72V nominal) and high-voltage boost/SEPIC topologies |
| Switch Rating | 150V/0.9Ω - enables direct primary-side switching in flyback up to ~15W without external MOSFET |
| Switching Frequency | 55 kHz to 550 kHz - adjustable via RT resistor; higher frequencies reduce transformer/capacitor size but increase AC losses |
| Feedback Reference | 1.21V ±50mV - precision internal reference for stable output regulation across temperature and load |
| Protection Functions | UVLO (1.21V LINE threshold), OVLO (3.0V LINE), VCC UV/OV lockout, thermal shutdown, hiccup-mode short-circuit recovery |
| Startup Current | 3 mA at VIN = 20V - low quiescent draw enables efficient high-voltage biasing from primary winding |
| Efficiency | Up to 90% at 48VIN/5VOUT@3A - measured with SOIC8E package and optimized magnetics per typical application |
Pinout & Package
MP6001DN-LF-Z is housed in a thermally enhanced SOIC8E (exposed pad) package, optimized for high-power density and PCB heat dissipation (θJA = 50°C/W, θJC = 10°C/W on 4-layer board).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 GND | Power return and reference node | Common ground for all analog and power circuits; must be low-impedance connection to exposed pad |
| 2 LINE | Line monitor / enable input | UV/OV detection via external divider; grounding disables controller; sets DMAX with feed-forward |
| 3 FB | Inverting input of error amplifier | Accepts optocoupler or resistive feedback; referenced to internal 1.21V bandgap |
| 4 COMP | Error amplifier output | Drives external compensation network; source/sink capability ≥2 mA supports Type II loop design |
| 5 RT | Oscillator timing / sync input | Resistor-to-GND sets fSW; accepts external clock pulses for synchronization |
| 6 VCC | Bias supply input | 4.5–6.0V operating range; requires ≥1µF local capacitor; clamped at 8V internally |
| 7 VIN | High-voltage startup supply | Charges VCC during startup; must exceed 10V for reliable turn-on; powers internal 100V start circuit |
| 8 SW | Power switch drain node | 150V-rated N-MOSFET output; connects to primary winding; carries peak currents up to 2A |
Key Features
| Feature | Design Value |
|---|---|
| Integrated 150V/0.9Ω power switch | Eliminates external high-voltage MOSFET, reducing BOM count and layout complexity in <15W isolated converters |
| Programmable switching frequency (55–550 kHz) | Enables optimization of magnetic size vs. efficiency trade-off across input/output combinations |
| Duty-cycle limiting with line feed-forward | Prevents transformer saturation at high line by dynamically reducing DMAX, improving transient immunity |
| Direct optocoupler interface | Bypasses internal error amplifier for precise secondary-side regulation without compensation redesign |
| Zero-load regulation with cycle skipping | Maintains tight output voltage (<±5%) down to no-load, critical for always-on telecom equipment |
| Auto-restart after fault | Enters hiccup mode on short/open output, then soft-starts after 15 VCC ramp cycles - prevents latch-up |
Applications
| VoIP Phone Power Supply | Power over Ethernet (PoE) PD Converter |
|---|---|
|
Use Scenario: Isolated 5V/3A DC-DC conversion from 36–72V PoE input in IP desk phones with standby power requirements. IC Role / Device Role / Timing Role: Primary-side flyback controller managing gate drive, current sensing, and optocoupler feedback for regulated output. Use Value: Enables compact, thermally efficient design meeting IEEE 802.3af/at efficiency mandates while maintaining zero-load regulation for SIP signaling. |
Use Scenario: Class 3/4 PoE-powered device requiring galvanically isolated 5V rail with fast transient response and fault recovery. IC Role / Device Role / Timing Role: Fixed-frequency peak-current-mode controller coordinating switching, protection, and synchronous rectifier timing (via external driver). Use Value: Delivers 90% peak efficiency at full load and maintains <±3% regulation across line/load/temperature - validated per TIA-1057 test conditions. |
| Telecom Line Card DC-DC | Industrial Distributed Power Module |
|
Use Scenario: 48V backplane-fed isolated 5V/2.5A supply for DSP/FPGA modules in carrier-grade access equipment. IC Role / Device Role / Timing Role: Flyback controller with line feed-forward and thermal shutdown, interfacing to TL431-based optocoupler feedback loop. Use Value: Supports -40°C to +85°C ambient operation with 150°C junction limit and 30°C hysteresis, ensuring reliability in sealed chassis. |
Use Scenario: Compact 10W isolated DC-DC module for factory automation I/O controllers requiring reinforced isolation and EMI compliance. IC Role / Device Role / Timing Role: Forward converter controller driving external MOSFETs, using RT-synchronized clock to reduce conducted emissions. Use Value: Programmable frequency avoids noise bands in sensitive analog signal chains; SOIC8E exposed pad simplifies thermal management on 2-layer PCBs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar flyback/forward controller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| UCC28740DR | Higher integration: includes HV start-up, QR control, and better light-load efficiency; no integrated power switch | Requires external 150V MOSFET; better suited for <5W QR flyback with ultra-low standby power | Select when optimizing for <30mW no-load consumption and QR topology; not drop-in due to different control scheme |
| LT3748IMS#TRPBF | Isolated boundary-mode controller with integrated transformer driver; supports up to 100VIN, no internal switch | Targets higher-reliability industrial/military apps; requires external gate driver and sense resistor | Choose for designs needing reinforced isolation certification (UL60950) and tighter ±1% output tolerance at light loads |
Compared with UCC28740DR and LT3748IMS, MP6001DN-LF-Z uniquely integrates the 150V/0.9Ω switch and supports both flyback and forward modes with line feed-forward - making it optimal for cost-sensitive, medium-power telecom supplies where BOM reduction and thermal simplicity outweigh ultra-low-noise or ultra-low-standby requirements.
Availability
MP6001DN-LF-Z is available at Aetrix Electronics and suitable for telecom infrastructure, Power over Ethernet endpoint devices, and industrial distributed power conversion requiring stable component supply, RoHS-compliant packaging, and long-term lifecycle continuity.
Supply support for MP6001DN-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 core expertise in DC-DC conversion, motor drivers, and LED lighting controllers.
The MP6001 product line targets cost-effective, thermally efficient isolated DC-DC conversion for telecom and industrial applications, emphasizing integration of high-voltage switches and robust protection in compact packages.
FAQ
What is the maximum continuous output power achievable with MP6001DN-LF-Z?
The MP6001DN-LF-Z is rated for up to 15W continuous output power in flyback configuration with proper heatsinking and SOIC8E package derating. This assumes 48V input, 5V/3A output, 90% efficiency, and ambient temperature ≤+60°C. At +85°C ambient, derated power drops to ~10W due to thermal limits (TJ ≤150°C, θJA = 50°C/W).
Can MP6001DN-LF-Z operate without an auxiliary winding for VCC biasing?
Yes - its integrated 100V high-voltage startup circuit draws current from VIN to charge the VCC capacitor, enabling operation without auxiliary winding during initial power-up. Once VCC reaches 6.0V, the internal switch disconnects VIN, and VCC sustains operation via bias from the transformer auxiliary winding or output rectifier.
How does the LINE pin function beyond UV/OV detection?
The LINE pin provides line feed-forward for duty-cycle limiting: as input voltage rises, VLINE increases, reducing maximum duty cycle (DMAX) from 67.5% at 1.3V to prevent transformer saturation and improve line-transient rejection. It also serves as a remote enable/disable input - grounding the pin halts switching immediately.
What is the minimum recommended VCC bypass capacitance?
A minimum 1µF ceramic capacitor is required between VCC and GND, placed as close as possible to the pin. This ensures stable bias during startup and transient load steps. Larger values (e.g., 4.7µF X5R) improve ripple suppression but do not replace the need for proper PCB layout and ground plane integrity.
Does MP6001DN-LF-Z support synchronous rectification?
No - MP6001DN-LF-Z does not include synchronous rectifier drive outputs. It is designed for use with external Schottky diodes (e.g., B330A) or optocoupler-controlled external MOSFETs. Synchronous rectification requires separate gate drivers timed to the SW node, which must be implemented externally using the SW signal and custom logic or dedicated SR controllers.
What is the purpose of the RT pin's dual functionality?
The RT pin sets oscillator frequency via an external resistor to GND (55–550 kHz range) and also accepts external clock signals for synchronization. When used as sync input, it requires 50–150ns pulses >3.5V peak, enabling EMI reduction through frequency dithering or alignment with system clocks in multi-rail power supplies.
How is zero-load regulation achieved without burst mode?
MP6001DN-LF-Z uses controlled cycle-skipping: when output current falls below threshold, the controller skips switching cycles while maintaining regulation via feedback loop stability and internal soft-start restart logic - avoiding audible noise and output voltage overshoot common in traditional burst-mode controllers.
MP6001DN-LF-Z Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Monolithic Power Systems Inc.
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width) Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Function:
- Step-Up, Step-Up/Step-Down
- Output Configuration:
- Positive or Negative, Isolation Capable
- Topology:
- Boost, Flyback, Forward Converter, SEPIC
- Output Type:
- Adjustable
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 10V
- Voltage - Input (Max):
- 100V
- Voltage - Output (Min/Fixed):
- -0.5V
- Voltage - Output (Max):
- 150V
- Current - Output:
- 2A (Switch)
- Frequency - Switching:
- 200kHz ~ 500kHz
- Synchronous Rectifier:
- No
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOICE
MP6001DN-LF-Z FAQ
1.How can I place an order for MP6001DN-LF-Z through Aetrix?
Please submit a Request for Quotation (RFQ) for MP6001DN-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 MP6001DN-LF-Z reliable?
The price and inventory of MP6001DN-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 MP6001DN-LF-Z is usually 5 days.
3.What payment methods are accepted for MP6001DN-LF-Z?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MP6001DN-LF-Z transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MP6001DN-LF-Z?
MP6001DN-LF-Z orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MP6001DN-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 MP6001DN-LF-Z?
For technical support, including MP6001DN-LF-Z datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MP6001DN-LF-Z requirements.
6.How does Aetrix verify that MP6001DN-LF-Z is sourced from the original manufacturer or authorized distributors?
All MP6001DN-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 MP6001DN-LF-Z meets industry standards.
7.What is the process for return or replacement of MP6001DN-LF-Z?
All MP6001DN-LF-Z units undergo pre-shipment inspection (PSI). If there is an issue with MP6001DN-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 MP6001DN-LF-Z part is unused and in its original packaging.
Return procedure for MP6001DN-LF-Z:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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