My Inquiry
My Account
Monolithic Power Systems Inc. MPX2003GYT-P
- Part No.:
- MPX2003GYT-P
- Manufacturer:
- Monolithic Power Systems Inc.
- Category:
- AC DC Converters, Offline Switches
- Package:
- 16-SOIC (0.295", 7.50mm Width), 15 Leads
- Datasheet:
-
MPX2003GYT-P.pdf
- Description:
- UP TO 140KHZ, ALL-IN-ONE FLYBACK
- Quantity:
- Payment:
- Shipping:
Inventory:500
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
MPX2003GYT-P from Monolithic Power Systems is an all-in-one flyback controller integrating primary-side regulation (PSR), secondary-side synchronous rectification (SR) control, safety-compliant feedback, and multi-mode operation (DCM/QR/CCM). It delivers up to 140kHz switching, supports 650V primary-side and 150V secondary-side voltage handling, and achieves <30mW standby power - enabling high-efficiency USB PD adapters and offline battery chargers.
For engineers reviewing the MPX2003GYT-P datasheet, MPX2003GYT-P pinout, MPX2003GYT-P application, or MPX2003GYT-P equivalent, key selection considerations include its integrated SR driver with CCM-safe timing, PSR+SSR hybrid regulation architecture, HV brown-in/brownout detection thresholds (107V/98V), VCC OVP at 26V, and dual-package availability (TSOICW16-15/SOICW-16).
Technical Context
The MPX2003GYT-P implements a dual-domain control architecture: the primary IC handles HV start-up, PDRV gate driving, CS-based peak current sensing, and brown-in/brownout detection, while the secondary IC manages COMP-based voltage regulation, FB/IS-based OVP/OLP, SDRV timing, and SRD-sensed QR synchronization. Communication between domains occurs via isolated digital signaling without optocouplers.
It dynamically transitions between operating modes: CCM under heavy load, quasi-resonant (QR) at medium load, and burst-mode PFM (20kHz fixed fSW) at light load to suppress audible noise. The SR driver uses adaptive turn-on/off thresholds (–90mV/±9mV) and includes SGOP/SGSP protection, while the internal linear regulator powers VDD directly from SRD - eliminating auxiliary winding dependency.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Max switching frequency | 140 kHz - enables compact magnetics and high-power-density designs in USB PD applications. |
| Primary HV rating | 650 V - supports universal AC input (90–265VAC) with robust line compensation and brown-in (107V) / brownout (98V) detection. |
| Secondary SRD rating | 150 V - enables direct sensing of high-voltage SR MOSFETs in 20V-output systems without level-shifting circuitry. |
| Standby power | <30 mW - meets stringent no-load energy efficiency requirements for EU CoC v5 Tier 2 and DOE Level VI. |
| VCC OVP threshold | 26 V - protects primary-side logic during output overvoltage events without external clamping. |
| FB reference voltage | 1.22 V ±1% - provides precise CV regulation with minimal external resistor tolerance impact on output accuracy. |
| IS overload threshold | 42 mV - enables accurate, temperature-stable current limiting for 3.25A output designs using standard 10mΩ sense resistors. |
| Burst-mode fSW | 20 kHz - eliminates audible coil whine during light-load operation while maintaining regulation stability. |
Pinout & Package
MPX2003GYT-P is packaged in TSOICW16-15 (10.3×10×1.7 mm, 15-pin with NC at Pin 2) and SOICW-16 (10.3×10×2.4 mm, 16-pin with NC at Pin 2). Both packages support >3750VAC isolation and are UL1577/IEC62368 certified.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| HV | High-voltage input | Supplies internal 650V current source for VCC charging and enables line-compensated brown-in/brownout detection. |
| PDRV | Primary gate driver output | Drives external primary MOSFET with 9.6V high-level drive and 20ns rise time at 1nF load. |
| CS | Primary current sense | Detects peak primary current for OCP and foldback; features 0.635V SCP threshold and 400ns LEB. |
| SRD | Synchronous rectifier drain sense | Senses SR MOSFET drain voltage to synchronize SDRV timing and supply VDD via internal linear regulator. |
| SDRV | Secondary gate driver output | Drives low-side SR MOSFET with 5V high-level drive at 5V VDD and 3A sink capability for fast turn-off. |
| FB | Feedback input | Connects to resistor divider for CV regulation; also triggers OVP (118% × 1.22V) and OLP (95mV) when combined with IS. |
| IS | Output current sense | Monitors output current via external shunt; enables precise OLP (42mV threshold) and cable drop compensation. |
| COMP | Error amplifier output | Accepts external Type II/III compensation network; voltage range 2.6V max supports stable loop design across load/transient conditions. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated PSR + SSR control | Eliminates optocoupler and TL431, reducing BOM count by ≥4 components and improving long-term reliability. |
| Multi-mode operation (DCM/QR/CCM) | Enables >90% efficiency across 10%–100% load range while maintaining EMI compliance in all modes. |
| VDD self-powered from SRD | Removes need for auxiliary winding or dedicated bias supply, simplifying transformer design and reducing leakage inductance sensitivity. |
| Comprehensive protection suite | Includes SGOP/SGSP, SRDP, SOP/SSP, FB OVP/UVP, VCC OVP, POCP, OTP (150°C), and externally triggered Ext.P - covering all critical failure modes. |
| UL1577 & IEC62368 certification | Validated for reinforced insulation in end-equipment requiring safety agency approval (e.g., medical, industrial, consumer). |
Applications
| USB PD Adapters | Offline Battery Chargers |
|---|---|
Use Scenario: 65W GaN-based USB PD 3.0 adapter delivering 5V/3A, 9V/3A, 15V/3A, and 20V/3.25A outputs from 90–265VAC input. IC Role / Device Role / Timing Role: MPX2003GYT-P serves as the system's all-in-one flyback controller, managing PSR/SSR coordination, QR valley switching, and dynamic mode transitions to maintain efficiency >92% at full load. Use Value: Integrated SR driver eliminates external SR controller IC and reduces component count by 3–5 parts, lowering bill-of-materials cost and PCB area by 12%. | Use Scenario: 24V/3A lithium-ion battery charger for power tools, featuring constant-current/constant-voltage (CC/CV) profile and thermal foldback. IC Role / Device Role / Timing Role: MPX2003GYT-P regulates output voltage via FB and monitors output current via IS pin to implement precise CC/CV transition and overload shutdown. Use Value: 42mV IS threshold enables ±1% current accuracy with 10mΩ shunt, supporting tight charge termination without additional op-amp circuitry. |
| High-Efficiency Industrial SMPS | Medical-Grade Auxiliary Power Supplies |
Use Scenario: 20V/3.25A open-frame power supply for PLC I/O modules, operating continuously at 60°C ambient with 100% load. IC Role / Device Role / Timing Role: MPX2003GYT-P operates in CCM at full load and transitions to QR/PFM as load decreases, maintaining >88% efficiency down to 10% load. Use Value: Dual OTP (150°C primary/secondary) and 3750VAC isolation enable compliance with IEC62368-1 Annex A for industrial equipment with extended lifetime requirements. | Use Scenario: 5V/2A auxiliary supply for patient-monitoring devices requiring 2×MOPP isolation and ≤30mW no-load consumption. IC Role / Device Role / Timing Role: MPX2003GYT-P provides reinforced isolation via certified package, implements burst-mode PFM at 20kHz, and uses internal VDD regulation to sustain operation at 5V output even during brownout. Use Value: Achieves <25mW no-load power and passes EN60601-1 dielectric strength testing without external isolation components. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar all-in-one flyback controller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| UCC28780RTWR | Lacks integrated SR driver; requires external SR controller (e.g., UCC24612); higher system BOM count and layout complexity. | Best suited for designs where SR timing flexibility is prioritized over integration; not ideal for space-constrained USB PD adapters. | Select if needing programmable QR timing or compatibility with TI's ecosystem; avoid when minimizing component count is critical. |
| INN3370C-H301 | Integrated SR driver but limited to 100kHz max fSW; no PFM burst mode - relies on frequency reduction only, risking audible noise below 25kHz. | Targeted at lower-power (<45W) applications; lacks 20kHz fixed-frequency burst mode for silent light-load operation. | Choose for cost-sensitive <45W designs with relaxed acoustic requirements; reject for 65W+ USB PD where burst-mode silence is mandatory. |
Compared with UCC28780RTWR and INN3370C-H301, MPX2003GYT-P uniquely combines 140kHz operation, integrated CCM-capable SR driver, 20kHz burst mode, and dual-domain protection - making it optimal for high-density, high-efficiency, low-noise offline power supplies demanding full integration.
Availability
MPX2003GYT-P is available at Aetrix Electronics and suitable for high-performance USB PD adapters, offline battery chargers, industrial SMPS, and medical auxiliary power supplies requiring stable component supply, long-lifecycle support, and safety-certified integration.
Supply support for MPX2003GYT-P 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 power management ICs, with over 20 years of expertise in DC/DC converters, LED drivers, motor drivers, and AC/DC controllers.
The MPX2003 product line targets high-efficiency, low-EMI offline flyback power supplies requiring integrated PSR+SSR functionality, safety certification, and multi-mode operation - specifically designed for next-generation USB PD, fast-charging, and industrial auxiliary power applications.
FAQ
What is the purpose of the SRD pin on the MPX2003GYT-P?
The SRD pin senses the drain voltage of the secondary-side synchronous rectifier MOSFET. It enables QR valley-switching detection, controls SDRV timing, and supplies power to the VDD rail via an internal linear regulator - eliminating the need for an auxiliary winding or external bias supply.
Does MPX2003GYT-P require an optocoupler for feedback?
No. MPX2003GYT-P implements a safety-compliant, optocoupler-free feedback link using isolated digital communication between its primary and secondary ICs. Regulation is achieved via FB (voltage) and IS (current) pins on the secondary side, with no external isolation components required.
How does the MPX2003GYT-P handle brown-in and brownout conditions?
It monitors HV pin voltage: brown-in triggers at 107V (typical), initiating VCC charging; brownout activates at 98V (typical), halting switching until HV recovers. Hysteresis is 8.5V, and delay time is 55ms (typical), ensuring stable startup across wide AC line variations.
Can MPX2003GYT-P drive high-side SR MOSFETs?
No. MPX2003GYT-P's SDRV output is designed exclusively for low-side SR MOSFETs. Its gate drive architecture references SGND, and the SRD pin requires connection to the SR MOSFET's drain - a configuration incompatible with high-side topologies.
What protection features are implemented on the IS pin?
The IS pin provides output overload protection (OLP) with a 42mV threshold, 66ms delay (typical), and supports cable drop compensation. It also enables secondary-side short-circuit protection and works with FB to trigger output OVP when IS voltage exceeds 50mV during overload events.
Is MPX2003GYT-P compatible with both TSOICW16-15 and SOICW-16 footprints?
Yes - MPX2003GYT-P is specified for TSOICW16-15 (15-pin, NC at Pin 2) and MPX2003GY is for SOICW-16 (16-pin, NC at Pin 2). Pin functions are identical except Pin 2 (NC in both), and thermal performance differs slightly (θJA = 45°C/W vs. 44°C/W).
What is the minimum output current detectable using the IS pin?
With a typical 42mV OLP threshold and standard 10mΩ sense resistor, MPX2003GYT-P reliably detects ≥4.2A output current. For lower currents, a higher-value shunt (e.g., 20mΩ) extends detection down to ~2.1A while maintaining ±1% accuracy across temperature.
MPX2003GYT-P Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Monolithic Power Systems Inc.
- Series:
- -
- Package/Case:
- 16-SOIC (0.295", 7.50mm Width), 15 Leads
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Output Isolation:
- Isolated
- Internal Switch(s):
- No
- Voltage - Breakdown:
- 650V
- Topology:
- Flyback, Secondary Side SR
- Voltage - Start Up:
- -
- Voltage - Supply (Vcc/Vdd):
- 4.8V ~ 24V, 9.5V ~ 30V
- Duty Cycle:
- -
- Frequency - Switching:
- 110kHz
- Power (Watts):
- -
- Fault Protection:
- Current Limiting, Over Load, Over Temperature, Over Voltage, Short Circuit, UVLO
- Control Features:
- Soft Start
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Supplier Device Package:
- 16-TSOICW15
- Mounting Type:
- Surface Mount
MPX2003GYT-P FAQ
1.How can I place an order for MPX2003GYT-P through Aetrix?
Please submit a Request for Quotation (RFQ) for MPX2003GYT-P 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 MPX2003GYT-P reliable?
The price and inventory of MPX2003GYT-P are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MPX2003GYT-P is usually 5 days.
3.What payment methods are accepted for MPX2003GYT-P?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MPX2003GYT-P transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MPX2003GYT-P?
MPX2003GYT-P orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MPX2003GYT-P 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 MPX2003GYT-P?
For technical support, including MPX2003GYT-P datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MPX2003GYT-P requirements.
6.How does Aetrix verify that MPX2003GYT-P is sourced from the original manufacturer or authorized distributors?
All MPX2003GYT-P 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 MPX2003GYT-P meets industry standards.
7.What is the process for return or replacement of MPX2003GYT-P?
All MPX2003GYT-P units undergo pre-shipment inspection (PSI). If there is an issue with MPX2003GYT-P, 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 MPX2003GYT-P part is unused and in its original packaging.
Return procedure for MPX2003GYT-P:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MPX2003GYT-P Tags
-
LNK6407D-TL
Power Integrations
-
LNK3204D-TL
Power Integrations
-
SR10LG-G
Microchip Technology
-
TNY285DG-TL
Power Integrations
-
LNK304DN-TL
Power Integrations
-
TNY285KG-TL
Power Integrations
-
LNK3206D-TL
Power Integrations
-
LNK623DG-TL
Power Integrations
-
TNY286PG
Power Integrations
-
LNK624DG-TL
Power Integrations
-
LNK604DG-TL
Power Integrations
-
UCC28704DBVR-1
Texas Instruments
Tech Hub
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
LDO regulator guide covering low dropout voltage, power dissipation, thermal design, PSRR, output noise, capacitor stability, adjustable LDO circuits, LDO vs buck converter and datasheet selection chec…
Conditional Access Module guide covering CAM meaning, CI/CI+ interface, smart card authorization, DVB security workflow, TV and set-top box compatibility, internal electronics, ESD protection, connecto…
Guide to electronic component obsolescence covering EOL risk, PCN/PDN notices, last-time buy planning, replacement options, form-fit-function validation, counterfeit risk and BOM lifecycle management.
18650 battery guide covering lithium-ion cell basics, 3.6V/3.7V voltage, 4.2V charging, mAh and Wh capacity, protected cells, chargers, BMS, series-parallel packs, holders, welding and sourcing checks.…
Hall effect sensor guide covering working principle, linear and digital sensors, Arduino circuits, current sensing, speed detection, automotive applications, A3144 examples, signal filtering and datash…
Product Change Notification guide for electronic components, covering PCN meaning, PCN vs PDN/EOL, common change types, risk levels, form-fit-function review, engineering validation, BOM control, LTB/L…
A practical guide to blend door actuators, covering HVAC function, symptoms, location, AC and heater issues, reset and calibration, replacement cost, electrical diagnosis, compatibility checks, and rep…
Engineering guide to Raspberry Pi alternatives, covering chip-level differences, Orange Pi, ROCK, Jetson, Banana Pi, NanoPi, Compute Module, Pico, GPIO, camera, HAT compatibility, and replacement risks…
