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Monolithic Power Systems Inc. MP5034GJ-Z
- Part No.:
- MP5034GJ-Z
- Manufacturer:
- Monolithic Power Systems Inc.
- Package:
- SOT-23-8 Thin, TSOT-23-8
- Datasheet:
-
MP5034GJ-Z.pdf
- Description:
- IC PWR SWTCH P-CHAN 1:1 TSOT23-8
- Quantity:
- Payment:
- Shipping:
Inventory:2,670
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Product details
Overview
MP5034GJ-Z from Monolithic Power Systems is a USB charging port controller integrating Qualcomm Quick Charge 3.0 protocol, BC1.2 DCP, divider mode, and 1.2V/1.2V mode detection. It operates from 3.6V to 14V input, delivers ±1% QC3.0 bus voltage accuracy (5V/9V/12V), and features integrated ADJ current sink (500 µA), input OVP (115% VIN threshold), and thermal shutdown (160°C). It enables auto-negotiated high-voltage charging in AC/DC wall adapters and power banks.
For engineers reviewing the MP5034GJ-Z datasheet, MP5034GJ-Z pinout, MP5034GJ-Z application, or MP5034GJ-Z equivalent, this device is selected for USB-C-adjacent legacy Type-A port control where precise bus voltage slewing, multi-standard auto-detection, and minimal external component count are required - especially when interfacing with buck/boost/AC-DC converters via FB pin regulation.
Technical Context
The MP5034GJ-Z implements a hardware-based, state-machine-driven USB charging protocol stack that autonomously sequences DP/DM signaling to negotiate QC3.0 voltages (3.6V–12V in 200mV steps) without MCU intervention. Its ADJ pin sinks up to 500 µA to dynamically adjust upstream converter output by modulating feedback node current.
It integrates dual-path protection: input over-voltage detection triggers active discharge to ground when VIN exceeds 115% of nominal bus voltage, and thermal shutdown disables all functions at 160°C junction temperature with 35°C hysteresis. The IC supports seamless transitions between 5V→9V→12V and reverse, with <60 ms glitch time during bus voltage changes.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 3.6V to 14V - powers directly from unregulated DC inputs like AC/DC outputs or battery packs without LDO pre-regulation. |
| QC3.0 Bus Voltage Accuracy | ±1% at 9V and 12V - ensures compliance with QC3.0 specification for reliable handshake with smartphones and tablets. |
| ADJ Sink Current | 500 µA max - regulates upstream DC/DC converter output by pulling current from FB node; sets practical R1 >30kΩ limit. |
| Input OVP Threshold | 115% of VIN (e.g., 12.65V at 11V bus) - triggers fast discharge path to protect downstream devices during overvoltage events. |
| Thermal Shutdown Temp | 160°C with 35°C hysteresis - prevents permanent damage during sustained overload or poor PCB thermal design. |
| DP/DM Handshake Modes | BC1.2 DCP, Divider (2.7V), 1.2V/1.2V, QC2.0/3.0 - detects and configures for >95% of legacy and modern USB-charging-capable portable devices. |
| Quiescent Current | 320 µA typical at 5V - enables low-power standby operation in always-on wall adapters and portable power banks. |
Pinout & Package
MP5034GJ-Z is housed in an 8-pin TSOT23 package (3.0 mm × 3.0 mm × 0.9 mm), optimized for compact USB port integration with exposed thermal pad (connected to GND). Pin 1 is bottom-left when viewing top marking "AYQ" left-to-right.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 EN | Enable control input | Internal 11.5 µA auto-pull-up to 5V; float or drive ≥1.21V to enable; pull ≤1.17V to disable IC and halt DP/DM activity. |
| 2,3 IN | Power supply input | Dual pins for low-impedance connection to input rail; must be shorted on PCB to minimize voltage drop and thermal resistance. |
| 4 GND | Ground reference | Primary return path for internal regulators, OVP comparator, and DP/DM I/O; connects to thermal pad for heat dissipation. |
| 5 ADJ | Voltage adjustment sink | Sinks up to 500 µA to upstream converter's FB pin to precisely regulate VBUS to 5.1V, 9V, or 12V per QC3.0 handshake. |
| 6 NC | No connection | Must be tied to GND on PCB; not electrically connected internally - avoids floating node noise coupling into sensitive analog blocks. |
| 7 DM | USB D− data line | Bi-directional I/O for BC1.2/Divider/1.2V/QC signaling; drives 0.3V–2.2V levels with 15–25 kΩ output impedance per mode. |
| 8 DP | USB D+ data line | Bi-directional I/O synchronized with DM; supports QC3.0 stepwise voltage negotiation and automatic 5V recovery on disconnect. |
Key Features
| Feature | Design Value |
|---|---|
| Multi-protocol auto-detection | Hardware-only recognition of BC1.2 DCP, 1.2V/1.2V, Divider, and QC2.0/3.0 - eliminates firmware dependency and reduces BOM cost. |
| Smooth QC3.0 voltage slewing | Glitch-free 5V↔9V↔12V transitions with <60 ms bus change time and no undershoot/overshoot - prevents device reset or communication loss. |
| Integrated input OVP with discharge | Dynamic 115% VIN threshold + active discharge path - protects connected devices during input surge or regulator fault without external TVS. |
| Low-quiescent-current operation | 320 µA typical supply current - extends standby runtime in battery-powered applications like portable chargers and automotive USB hubs. |
| TSOT23-8 thermal performance | θJA = 66°C/W on 2-layer PCB - enables >1.8W continuous dissipation at TA = 25°C, supporting high-current (≥3A) USB PD-adjacent designs. |
Applications
| AC/DC Wall Adapter | Portable Power Bank |
|---|---|
|
Use Scenario: 12V-input universal wall charger with dual USB-A ports delivering up to 18W per port. IC Role / Device Role / Timing Role: USB port controller managing DP/DM handshaking, VBUS voltage selection, and OVP protection - acts as protocol bridge between AC/DC stage and connected devices. Use Value: Enables single-chip QC3.0 support without microcontroller; reduces bill-of-materials by eliminating discrete level shifters, OVP ICs, and mode-select resistors. |
Use Scenario: 3S Li-ion power bank (12.6V max) supplying adaptive 5V/9V/12V to smartphones and tablets via USB-A. IC Role / Device Role / Timing Role: Charging mode arbitrator and bus voltage regulator - interprets device requests, commands upstream buck converter via ADJ, and enforces safe voltage transitions. Use Value: Delivers full QC3.0 compatibility with <1000 µs DP high-glitch timing and 500 ms auto-recovery to 5V on cable removal - improves user experience and charge efficiency. |
| Automotive USB Charger | USB Hub with Charging Support |
|
Use Scenario: 12V–36V automotive cigarette-lighter adapter supporting QC3.0 fast charging in vehicles. IC Role / Device Role / Timing Role: Input-tolerant USB charging supervisor - handles wide VIN range, performs cold-cranking-safe startup, and manages thermal limits under cabin temperature extremes. Use Value: Operates across full automotive input range (3.6V–14V) with built-in OVP discharge and 125°C max operating junction temperature - meets AEC-Q200 stress requirements in simplified layout. |
Use Scenario: 4-port USB 2.0 hub with dedicated charging ports compliant with USB Battery Charging Spec 1.2. IC Role / Device Role / Timing Role: Dedicated charging port (DCP) detector and voltage controller - identifies BC1.2-compliant devices on individual ports and configures DP/DM accordingly. Use Value: Supports simultaneous BC1.2 and QC3.0 negotiation across multiple ports using shared or isolated ADJ paths - enables scalable multi-port designs without protocol collision. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar USB charging port control applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| FP6181A | Lacks QC3.0 support; only BC1.2 DCP and Apple 2.4A modes; no ADJ pin - requires fixed-output upstream converter. | Restricted to basic 5V charging; cannot negotiate 9V/12V; unsuitable for QC3.0-certified end products. | Select only if QC3.0 is not required and cost is primary constraint; verify BC1.2 timing compliance with target devices. |
| IP2721 | Supports QC3.0 + USB PD 2.0 sink; includes integrated 5V LDO; higher quiescent current (1.2 mA); requires external MCU for PD negotiation. | Enables dual-protocol (QC+PD) charging but adds firmware complexity and increases solution size/cost. | Choose when USB PD compatibility is mandatory; MP5034GJ-Z remains optimal for QC3.0-only, MCU-less, space-constrained designs. |
Compared with FP6181A and IP2721, MP5034GJ-Z uniquely balances QC3.0 protocol completeness, zero-MCU operation, and ultra-low quiescent current in a thermally efficient 8-pin package - making it the preferred choice for cost-sensitive, high-volume USB-A fast-charging adapters and power banks.
Availability
MP5034GJ-Z is available at Aetrix Electronics and suitable for AC/DC wall adapters, portable power banks, and automotive USB chargers requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant packaging.
Supply support for MP5034GJ-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 mixed-signal ICs for power management, motor drive, and interface applications.
The MP5034 belongs to MPS's USB charging controller product line, designed specifically to simplify high-efficiency, multi-standard USB charging implementation in consumer and automotive power supplies - eliminating software dependencies while maintaining full QC3.0 compliance.
FAQ
What is the maximum input voltage the MP5034GJ-Z can withstand?
The absolute maximum input voltage is +16V, but the recommended operating range is 3.6V to 14V. Exceeding 14V risks triggering the input over-voltage protection (OVP), which activates discharge to ground when VIN rises above 115% of the nominal bus voltage - e.g., 12.65V at 11V nominal. Sustained operation above 14V may cause thermal stress or premature OVP cycling.
Does MP5034GJ-Z require an external microcontroller to support QC3.0?
No. MP5034GJ-Z implements QC3.0 protocol handling entirely in hardware using dedicated state machines and DP/DM drivers. It negotiates 5V/9V/12V bus voltages autonomously based on device handshake signals, with no firmware, clock source, or external logic required - enabling true "plug-and-play" QC3.0 support.
How does the ADJ pin regulate output voltage in QC3.0 mode?
The ADJ pin sinks a controlled current (up to 500 µA) from the upstream DC/DC converter's feedback (FB) node to ground. By modulating this sink current, the MP5034GJ-Z adjusts the effective FB divider ratio, causing the converter to raise or lower its output voltage - achieving precise 5.1V, 9V, or 12V VBUS levels per QC3.0 command without external DACs or op-amps.
Can MP5034GJ-Z coexist with USB-C or USB PD designs?
MP5034GJ-Z is designed exclusively for USB-A Type-A ports and does not support USB-C connector detection, CC pin logic, or USB PD message exchange. It can be used alongside USB-C PD controllers in multi-port systems (e.g., one USB-C PD port + two USB-A QC3.0 ports), but it does not replace or interface with USB PD PHY or policy engines.
What is the purpose of the NC pin, and how should it be handled on the PCB?
Pin 6 is a no-connect (NC) terminal with no internal bond wire. Per MPS guidelines, it must be tied to GND on the PCB to prevent floating-node noise coupling into adjacent analog circuits (e.g., ADJ or DP/DM lines). It must never be connected to any signal above 500 mV, as this could induce latch-up or measurement error in nearby functional pins.
Is MP5034GJ-Z compatible with legacy Apple charging devices?
Yes - MP5034GJ-Z supports BC1.2 DCP mode, which covers Apple's 2.4A charging signature (D+ = 2.7V, D− = 2.7V). While it does not implement Apple-specific proprietary protocols (e.g., MFi authentication), it delivers full 2.4A current capability when detected as a DCP port, ensuring reliable charging for iPhones, iPads, and iPods.
What thermal derating applies above 25°C ambient temperature?
Using θJA = 66°C/W (2-layer PCB), the maximum allowable power dissipation decreases linearly: PD(MAX) = (125°C − TA)/66. At 70°C ambient, max continuous power drops to ~0.83W. For sustained >1.5A output, use thermal vias under the GND pad and minimize trace resistance on IN/GND paths to maintain junction temperature below 125°C.
MP5034GJ-Z Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Monolithic Power Systems Inc.
- Package/Case:
- SOT-23-8 Thin, TSOT-23-8
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Switch Type:
- USB Switch
- Number of Outputs:
- 1
- Ratio - Input:Output:
- 1:1
- Output Configuration:
- -
- Output Type:
- P-Channel
- Interface:
- -
- Voltage - Load:
- 14V (Max)
- Voltage - Supply (Vcc/Vdd):
- -
- Current - Output (Max):
- 3A
- Rds On (Typ):
- -
- Input Type:
- -
- Features:
- -
- Fault Protection:
- -
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- TSOT-23-8
MP5034GJ-Z FAQ
1.How can I place an order for MP5034GJ-Z through Aetrix?
Please submit a Request for Quotation (RFQ) for MP5034GJ-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 MP5034GJ-Z reliable?
The price and inventory of MP5034GJ-Z are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MP5034GJ-Z is usually 5 days.
3.What payment methods are accepted for MP5034GJ-Z?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MP5034GJ-Z transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MP5034GJ-Z?
MP5034GJ-Z orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MP5034GJ-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 MP5034GJ-Z?
For technical support, including MP5034GJ-Z datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MP5034GJ-Z requirements.
6.How does Aetrix verify that MP5034GJ-Z is sourced from the original manufacturer or authorized distributors?
All MP5034GJ-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 MP5034GJ-Z meets industry standards.
7.What is the process for return or replacement of MP5034GJ-Z?
All MP5034GJ-Z units undergo pre-shipment inspection (PSI). If there is an issue with MP5034GJ-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 MP5034GJ-Z part is unused and in its original packaging.
Return procedure for MP5034GJ-Z:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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