My Inquiry
My Account
Monolithic Power Systems Inc. MP5402MGR-P
- Part No.:
- MP5402MGR-P
- Manufacturer:
- Monolithic Power Systems Inc.
- Package:
- 26-PowerVFQFN
- Datasheet:
-
MP5402MGR-P.pdf
- Description:
- IC REG BUCK 5V 5A 26QFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,059
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
MP5402MGR-P from Monolithic Power Systems is a monolithic 5A, 36V synchronous step-down converter with integrated dual USB current-limit switches and BC1.2-compliant charging port identification. It delivers fixed 5V output with programmable line-drop compensation, supports 350/250/150kHz selectable switching frequency, and provides ±8kV HBM ESD protection on DP/DM/USB pins for automotive cigarette-lighter USB chargers.
For engineers reviewing the MP5402MGR-P datasheet, MP5402MGR-P pinout, MP5402MGR-P application, or MP5402MGR-P equivalent, key selection criteria include its dual-USB auto-detection modes (DCP/divider/1.2V–1.2V), hiccup-mode overcurrent protection, thermal shutdown at 165°C, and QFN-26 (4mm×4mm) package with exposed thermal pad for high-power density designs.
Technical Context
The MP5402MGR-P integrates a peak-current-mode controlled buck regulator with internal 40mΩ/32mΩ HS/LS MOSFETs and two independent USB power switches featuring 24mΩ RDS(ON). Its auto-detection state machine implements BC1.2 DCP, divider, and 1.2V/1.2V handshaking without external components.
Line-drop compensation is dynamically adjusted using the larger of the two USB current-sense signals, while output OVP (6.0V trip, 5.75V recovery) and thermal shutdown (165°C activation, 20°C hysteresis) operate independently of EN control to ensure robust fault containment.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input voltage range | 7V to 36V - supports 12V/24V automotive systems and wide-input industrial rails |
| Output voltage | Fixed 5V ±1% - regulated with programmable line-drop compensation for cable loss correction |
| Continuous output current | 5A - delivered by internal synchronous MOSFETs (40mΩ HS / 32mΩ LS) |
| USB current limit | 2.75A per port - accurate foldback current limiting with hiccup mode (3ms on / 8.5s off) |
| Switching frequency | 150/250/350kHz - selectable via FREQ pin for EMI optimization and inductor size trade-offs |
| ESD rating | ±8kV HBM on USB/DP/DM - enables direct connection to unshielded USB connectors in harsh environments |
| Thermal shutdown | 165°C with 20°C hysteresis - protects against sustained overload or poor heatsinking |
Pinout & Package
MP5402MGR-P is housed in a thermally enhanced QFN-26 (4mm × 4mm) package with exposed PGND pad for efficient heat dissipation in space-constrained USB charger modules.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2 | USB1 | 5V/2.4A regulated output with integrated current limit and BC1.2 detection |
| 3, 15, 25 | OUT | Buck output node - supplies both USB ports and requires low-impedance routing to minimize voltage drop |
| 4, 14 | IN | Main input (7–36V); powers internal circuitry and serves as HS-FET drain |
| 5, 6, 12, 13 | PGND | Power ground reference for buck output and USB switches - must be connected to large copper plane with multiple vias |
| 7 | FREQ | Frequency select: float = 150kHz, GND = 250kHz, 5V = 350kHz - sets switching frequency for EMI and efficiency tuning |
| 8 | EN | Enable control with 1.43V threshold and 140mV hysteresis - supports automatic start-up via pull-up resistor |
| 9, 10, 26 | SW | Switch node connecting HS/LS MOSFETs - requires wide trace and minimal loop area for EMI reduction |
| 11 | BST | Bootstrap supply for HS gate driver - requires 0.1μF ceramic capacitor between BST and SW |
| 16, 17 | USB2 | Second 5V/2.4A USB output with identical current limit and detection logic as USB1 |
| 18 | AGND | Analog ground - must be tied to PGND at single point near VCC decoupling capacitor |
| 19 | VCC | Internal 5V LDO output - powers control circuitry; requires 0.22μF ceramic decoupling |
| 20 | VDROP | Line-drop compensation select - sets compensation amplitude via voltage level (GND/mid/5V) |
| 21, 24 | DM1, DM2 | USB D− data lines - used for BC1.2 handshaking; ±8kV HBM protected |
| 22, 23 | DP1, DP2 | USB D+ data lines - used for BC1.2 handshaking; ±8kV HBM protected |
Key Features
| Feature | Design Value |
|---|---|
| Smart USB port identification | Hardware-based BC1.2 DCP, divider, and 1.2V/1.2V mode detection - eliminates need for MCU or firmware |
| Programmable line-drop compensation | Three-level VDROP pin control (GND/mid/5V) adjusts compensation gain to match cable resistance |
| Hiccup-mode overcurrent protection | 8.5A buck current limit with 3ms on / 8.5s off cycling - limits average power during short-circuit faults |
| Dynamic USB OVP | Load-dependent OVP threshold - maintains 4.75–5.25V at cable end under varying current and trace impedance |
| EMI-reduction architecture | Controlled slew-rate switching and optimized layout guidelines - reduces conducted/radiated emissions without external filters |
Applications
| Automotive Cigarette Lighter Adapters | Industrial Dual-Port USB Chargers |
|---|---|
|
Use Scenario: 12V/24V vehicle power outlet supplying simultaneous charging to smartphones and tablets. IC Role / Device Role / Timing Role: Primary DC–DC regulator and dual-port USB power manager with BC1.2 auto-negotiation. Use Value: Eliminates external USB ID detection ICs and discrete MOSFETs, reducing BOM count by ≥7 components versus discrete solutions. |
Use Scenario: DIN-rail mounted USB charging station for factory floor tools and handheld scanners. IC Role / Device Role / Timing Role: High-reliability 5V power source with thermal and overvoltage fault containment. Use Value: 165°C thermal shutdown and hiccup-mode OCP enable safe operation in unventilated enclosures with ambient up to +85°C. |
| Smart Home Hub Power Supplies | Commercial Kiosk Charging Stations |
|
Use Scenario: Centralized USB power for smart speaker docks, security camera hubs, and IoT gateways. IC Role / Device Role / Timing Role: Fixed-frequency buck controller with dual independent USB outputs and soft-start sequencing. Use Value: Programmable line-drop compensation ensures stable 5V delivery across 1–2m USB cables, meeting USB-IF voltage spec at load. |
Use Scenario: Public-access kiosks requiring dual fast-charging ports with tamper-resistant design. IC Role / Device Role / Timing Role: Integrated USB charging controller with ±8kV HBM ESD protection on all data lines. Use Value: Withstands repeated hot-plug events and electrostatic discharge in high-traffic retail environments without latch-up or degradation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-USB charging controller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MP5412MGR-P | Higher 6A output current; same pinout and feature set; adds spread-spectrum frequency modulation | Required when >5A total load or stricter EMI compliance (CISPR 22 Class B) is mandated | Select MP5412MGR-P if system requires margin above 5A or needs reduced peak EMI without filter redesign |
| TPS65987D | USB-C PD 3.0 controller with 100W capability; requires external buck converter; supports alternate modes | Needed for USB-C connector implementation, programmable power delivery, or video/audio tunneling | Choose TPS65987D only when USB-C PD negotiation, variable voltage, or data role swapping is required |
Compared with MP5402MGR-P, MP5412MGR-P offers higher current headroom and built-in spread-spectrum EMI reduction but shares identical USB detection logic and package; TPS65987D targets USB-C ecosystems and lacks integrated buck conversion, requiring additional power stages and increasing BOM complexity for simple 5V dual-port applications.
Availability
MP5402MGR-P is available at Aetrix Electronics and suitable for automotive cigarette lighter adapters, industrial dual-port USB chargers, and smart home hub power supplies requiring stable component supply and long-term production continuity.
Supply support for MP5402MGR-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 analog and power ICs, with core expertise in DC–DC conversion, motor drivers, and battery management.
The MP5402M product line targets compact, high-efficiency USB charging solutions for automotive and industrial markets, integrating power conversion, USB detection, and protection into a single QFN package to reduce system footprint and design complexity.
FAQ
What is the maximum supported input voltage for MP5402MGR-P?
The absolute maximum input voltage is 40V, but the recommended operating range is 7V to 36V. Operation above 36V risks exceeding the 43V transient rating on the SW pin and may trigger overvoltage protection or damage internal structures. For 48V systems, an upstream pre-regulator is required.
How does the VDROP pin affect line-drop compensation?
The VDROP pin selects one of three compensation gains: GND = low (130mV at 2.4A), mid-level (2.5V) = medium (400mV), and 5V = high (500mV). This allows matching compensation to actual PCB trace and cable resistance, ensuring 5V ±5% is maintained at the USB connector under full load.
Can MP5402MGR-P support USB devices that require non-BC1.2 charging protocols?
No - MP5402MGR-P implements only BC1.2 DCP, divider, and 1.2V/1.2V modes. It does not support Apple 2.4A, Qualcomm Quick Charge, or USB-C PD protocols. Devices requiring those standards will default to standard downstream port (SDP) 500mA mode unless paired with a protocol-aware companion IC.
What is the purpose of the AGND pin, and how should it be connected?
AGND is the analog ground reference for the error amplifier, current sense, and USB detection circuitry. It must be connected to PGND at a single point near the VCC decoupling capacitor to prevent noise coupling from power switching currents into sensitive analog nodes.
Does MP5402MGR-P provide independent overvoltage protection for each USB port?
Yes - each USB port has its own dynamic OVP circuit that adjusts the trip threshold based on load current. This ensures the voltage at the cable end remains within USB specification (4.75–5.25V) regardless of cable length or current draw, unlike fixed-threshold solutions.
What is the minimum inductor value recommended for stable operation?
A 22µH inductor is recommended for most applications to balance EMI performance and efficiency. The datasheet specifies this value for typical 12V input and 5V/5A output; smaller values (e.g., 10µH) may be used at lower currents but increase ripple and reduce stability margin.
How does thermal shutdown interact with the EN pin?
Thermal shutdown overrides EN control: once junction temperature exceeds 165°C, the device shuts down completely - disabling switching, USB outputs, and internal regulators - even if EN remains high. Recovery occurs only after die temperature falls below 145°C, independent of EN state.
MP5402MGR-P Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Monolithic Power Systems Inc.
- Series:
- -
- Package/Case:
- 26-PowerVFQFN
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Not For New Designs
- Function:
- Step-Down
- Output Configuration:
- Positive
- Topology:
- Buck
- Output Type:
- Fixed
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 7V
- Voltage - Input (Max):
- 36V
- Voltage - Output (Min/Fixed):
- 5V
- Voltage - Output (Max):
- -
- Current - Output:
- 5A
- Frequency - Switching:
- 350kHz
- Synchronous Rectifier:
- No
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 26-QFN (4x4)
MP5402MGR-P FAQ
1.How can I place an order for MP5402MGR-P through Aetrix?
Please submit a Request for Quotation (RFQ) for MP5402MGR-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 MP5402MGR-P reliable?
The price and inventory of MP5402MGR-P are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MP5402MGR-P is usually 5 days.
3.What payment methods are accepted for MP5402MGR-P?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MP5402MGR-P transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MP5402MGR-P?
MP5402MGR-P orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MP5402MGR-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 MP5402MGR-P?
For technical support, including MP5402MGR-P datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MP5402MGR-P requirements.
6.How does Aetrix verify that MP5402MGR-P is sourced from the original manufacturer or authorized distributors?
All MP5402MGR-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 MP5402MGR-P meets industry standards.
7.What is the process for return or replacement of MP5402MGR-P?
All MP5402MGR-P units undergo pre-shipment inspection (PSI). If there is an issue with MP5402MGR-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 MP5402MGR-P part is unused and in its original packaging.
Return procedure for MP5402MGR-P:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MP5402MGR-P Tags
-
TPS562201DDCR
Texas Instruments
-
MC34063ABD-TR
STMicroelectronics
-
TPS561201DDCR
Texas Instruments
-
MC33063ADR
Texas Instruments
-
MC34063ADR
Texas Instruments
-
TPS560200DBVR
Texas Instruments
-
AP3012KTR-G1
Diodes Incorporated
-
TLV61048DBVR
Texas Instruments
-
AZ34063UMTR-G1
Diodes Incorporated
-
TPS562200DDCR
Texas Instruments
-
AP62300TWU-7
Diodes Incorporated
-
MC34063EBD-TR
STMicroelectronics
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
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…
