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Monolithic Power Systems Inc. MP5032GJ-Z
- Part No.:
- MP5032GJ-Z
- Manufacturer:
- Monolithic Power Systems Inc.
- Package:
- SOT-23-8 Thin, TSOT-23-8
- Datasheet:
-
MP5032GJ-Z.pdf
- Description:
- IC PWR SWTCH P-CHAN 1:1 TSOT23-8
- Quantity:
- Payment:
- Shipping:
Inventory:2,998
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Product details
Overview
MP5032GJ-Z from Monolithic Power Systems is a USB QC 3.0 controller with integrated current-limit switch, designed for intelligent USB power delivery in automotive and portable charging systems. It delivers up to 3A continuous output, supports BC1.2/Divider/1.2V/1.2V/QC 3.0 port identification, features programmable current limit via ILIM pin, and provides line drop compensation for stable 5V load-side regulation.
For engineers reviewing the MP5032GJ-Z datasheet, MP5032GJ-Z pinout, MP5032GJ-Z application, or MP5032GJ-Z equivalent, this device is selected for USB power path control where dynamic voltage negotiation (3.6–12V), accurate current limiting (±5% typical), hiccup-mode OCP, input OVP (115% VIN threshold), and TSOT23-8 thermal performance are critical design requirements.
Technical Context
The MP5032GJ-Z integrates a 32mΩ RDS(ON) NMOS power switch with adaptive current limiting that scales across QC 3.0 output voltages (3.6–12V) to maintain constant power. Its ADJ pin sinks up to 500µA to regulate upstream DC/DC converters-enabling both 5V line-drop compensation and smooth 200mV-step QC 3.0 voltage transitions.
It implements dual-stage UVLO (3.0V and 3.9V thresholds), intelligent input discharge during high-to-low voltage mode changes, and dynamic OVP with 115% VIN trip and 5.5V recovery. Protection includes hiccup-mode OCP (2ms on / 2s off), thermal shutdown at 160°C, and fast short-circuit shutdown (<700ns).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input voltage range | 3.6V to 14V - supports wide-input automotive and industrial USB power supplies without external LDO pre-regulation |
| Continuous output current | 3A - enables full-power USB-C PD-compatible charging at 5V, with derating per thermal limits |
| RDS(ON) | 32mΩ (typ) - minimizes conduction loss and self-heating in TSOT23-8 package under 3A load |
| Current limit accuracy | ±5% (typ) - achieved via precision ILIM resistor programming, enabling repeatable overcurrent protection |
| QC 3.0 voltage range | 3.6V to 12V in 200mV steps - compliant with Qualcomm's variable-voltage negotiation protocol for fast charging |
| Line drop compensation | 440mV max at 2.4A - actively corrects for PCB trace IR drop to maintain ±1% load-side 5V regulation |
| OVP threshold | 115% of VIN (±5%) - dynamically tracks input rail to protect downstream devices during transient overvoltage events |
Pinout & Package
MP5032GJ-Z is housed in an 8-pin TSOT23 package (2.9mm × 1.6mm × 0.85mm), optimized for compact USB charging modules with thermal pad exposed on bottom side for PCB heat sinking.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 EN | Enable control input | Internal 11.5µA auto-pull-up; float or drive >1.21V to enable; <1.17V disables IC and shuts down all functions |
| 2 OUT | Switched USB output | Drives Type-A connector; carries full 3A load current through internal 32mΩ MOSFET |
| 3 IN | Main power input | Accepts 3.6–14V; powers internal regulators and gate driver; feeds OVP comparator |
| 4 GND | Power and signal ground | Common reference for all analog blocks; must be low-impedance connection to thermal pad |
| 5 ADJ | Voltage regulation interface | Sinks up to 500µA to upstream converter FB pin-enables 5V line compensation and QC 3.0 voltage ramping |
| 6 ILIM | Current limit set point | Resistor-to-GND sets precise current threshold (e.g., 1.5kΩ = 3.2A); scales with VOUT to preserve power limit |
| 7 DM | USB D− data line | Bi-directional handshake pin for BC1.2/Divider/1.2V/1.2V/QC protocols; 20kΩ output impedance in Divider mode |
| 8 DP | USB D+ data line | Bi-directional handshake pin; outputs 1.2V in 1.2V/1.2V mode; drives QC-specific voltage levels (0.3V/2.0V) |
Key Features
| Feature | Design Value |
|---|---|
| Integrated QC 3.0 + BC1.2 port detection | Automatically identifies and negotiates with smartphones/tablets without MCU intervention or firmware |
| Programmable current limit with power-conserving scaling | ILIM resistor sets threshold; IC reduces current at higher VOUT (e.g., 2.08A @ 9V) to hold ~10W constant power |
| Active line drop compensation | ADJ pin injects controlled sink current to raise upstream converter output-compensates for up to 440mV IR drop at 2.4A |
| Hiccup-mode overcurrent protection | Enters 2ms ON / 2s OFF cycle when VOUT < 3.5V for >2ms-limits average power dissipation during sustained overload |
| Dynamic input over-voltage protection | OVP trips at 115% VIN regardless of operating mode; recovers at 5.5V; blanked during mode transitions to prevent false triggers |
Applications
| Automotive Cigarette Lighter Adapter | USB Power Bank Output Stage |
|---|---|
|
Use Scenario: 12V vehicle battery powers dual-port USB charger delivering 5V/9V/12V to phones and tablets. IC Role / Device Role / Timing Role: MP5032GJ-Z acts as intelligent USB power path manager-detecting device type, negotiating QC 3.0 voltage, regulating output, and enforcing current limit. Use Value: Eliminates need for separate USB ID IC and discrete current-limit MOSFET; reduces BOM count by 4 components vs. discrete solution. |
Use Scenario: Portable power bank uses boost converter to generate 5–12V; MP5032GJ-Z conditions output for fast-charging compatibility. IC Role / Device Role / Timing Role: Serves as post-regulator and protocol interpreter-accepting variable boost output, stabilizing VBUS, and executing QC handshaking on DP/DM. Use Value: Enables single-cell Li-ion (3.0–4.2V) power banks to deliver full QC 3.0 performance without sacrificing efficiency or board space. |
| Industrial USB Charging Hub | Smart Home USB Wall Adapter |
|
Use Scenario: DIN-rail mounted hub supplies USB power to IoT sensors and controllers in factory environments with 24V DC input. IC Role / Device Role / Timing Role: Functions as robust USB port controller-handling wide-input transients, providing OVP/OCP/thermal protection, and supporting legacy BC1.2 devices. Use Value: Maintains 5V ±1% regulation under 3A load despite long wiring runs (via line drop compensation), ensuring reliable sensor boot-up. |
Use Scenario: AC/DC adapter with buck-boost front-end delivers 5–12V; MP5032GJ-Z manages final USB output stage with safety and protocol compliance. IC Role / Device Role / Timing Role: Acts as certified USB charging interface-executing QC 3.0 negotiation, enforcing UL/IEC current limits, and providing hiccup-mode fault containment. Use Value: Meets USB-IF certification requirements for variable-output adapters while simplifying layout with integrated switch and protection. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar USB charging controller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MP5031GJ-Z | Single-mode only (5V BC1.2); no QC 3.0 support; identical TSOT23-8 package and pinout | Limited to fixed 5V charging; cannot negotiate 9V/12V; lacks ADJ-driven voltage ramping | Select when QC 3.0 is unnecessary and cost reduction is prioritized over multi-voltage flexibility |
| TPS65987D | USB-C PD 3.0 controller with integrated 3.3V/1.2V LDOs; supports 100W; requires external FETs for power path | Targets USB-C ecosystems; needs external 30mΩ MOSFETs; supports full PD contract negotiation and VCONN | Choose for USB-C PD compliance and higher power; avoid if Type-A-only, low-cost, or space-constrained designs dominate |
Compared with MP5031GJ-Z, MP5032GJ-Z adds essential QC 3.0 negotiation and dynamic voltage control; versus TPS65987D, it trades USB-C PD complexity for simpler Type-A integration, lower component count, and direct current-limit switching in one TSOT23-8 die.
Availability
MP5032GJ-Z is available at Aetrix Electronics and suitable for automotive cigarette lighter adapters, USB power banks, and industrial charging hubs requiring stable component supply, RoHS-compliant packaging, and long-term lifecycle support.
Supply support for MP5032GJ-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 USB power management.
The MP5032 belongs to MPS's USB Charging Controller product line, engineered specifically for compact, high-efficiency USB power delivery in automotive, portable, and industrial applications where protocol-aware current limiting and voltage negotiation are mandatory.
FAQ
What is the maximum recommended PCB copper weight for thermal relief with MP5032GJ-Z?
The TSOT23-8 package relies on its exposed thermal pad for heat dissipation. For optimal thermal performance, use 2oz copper on the thermal pad layer with ≥4 thermal vias (0.3mm diameter) connecting to inner ground planes. On 2-layer boards, the EV5032-J-00A reference design achieves θJA = 66°C/W using 58mm × 32mm 2oz copper area.
Can MP5032GJ-Z operate with an input voltage below 3.6V?
No-MP5032GJ-Z has a hard UVLO threshold of 3.7V (min) for power MOSFET turn-on. Below 3.6V, the IC remains disabled. The first UVLO stage (2.7–3.3V) only activates ADJ regulation for upstream converters but does not enable the output switch.
How does the ILIM resistor affect current limit across QC 3.0 voltage modes?
The ILIM resistor sets the base current limit at 5V (e.g., 1.5kΩ → 3.2A). At 9V and 12V, the IC automatically reduces the current threshold-by ~15% and ~35%, respectively-to maintain constant power (~10W). This scaling is internal and requires no external circuitry.
Is line drop compensation active during QC 3.0 operation?
No-line drop compensation is disabled when the output voltage is set above 5.1V (i.e., during QC 3.0 9V/12V modes). It operates exclusively in 5V BC1.2 or default mode, where ADJ adjusts upstream converter feedback to counteract trace resistance losses.
What happens if DP and DM are left unconnected?
If DP and DM are floating or open, the MP5032GJ-Z defaults to 5V BC1.2 DCP mode after startup. It will not initiate QC 3.0 negotiation, but still provides regulated 5V output with current limiting and full protection features enabled.
Does MP5032GJ-Z support USB-C receptacles?
No-MP5032GJ-Z is designed exclusively for USB Type-A connectors and legacy BC1.2/QC protocols. It lacks CC logic, VCONN support, and USB-C PD message handling. For USB-C, MPS recommends the TPS65987D or MPQ5072 series.
How is thermal shutdown recovery behavior defined?
Thermal shutdown triggers at 160°C junction temperature. Recovery occurs when die temperature falls below 125°C (35°C hysteresis), at which point the IC resumes normal operation-including re-enabling the power MOSFET and restarting QC negotiation if EN is asserted.
MP5032GJ-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):
- 32mOhm
- Input Type:
- -
- Features:
- -
- Fault Protection:
- -
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- TSOT-23-8
MP5032GJ-Z FAQ
1.How can I place an order for MP5032GJ-Z through Aetrix?
Please submit a Request for Quotation (RFQ) for MP5032GJ-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 MP5032GJ-Z reliable?
The price and inventory of MP5032GJ-Z are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MP5032GJ-Z is usually 5 days.
3.What payment methods are accepted for MP5032GJ-Z?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MP5032GJ-Z transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MP5032GJ-Z?
MP5032GJ-Z orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MP5032GJ-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 MP5032GJ-Z?
For technical support, including MP5032GJ-Z datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MP5032GJ-Z requirements.
6.How does Aetrix verify that MP5032GJ-Z is sourced from the original manufacturer or authorized distributors?
All MP5032GJ-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 MP5032GJ-Z meets industry standards.
7.What is the process for return or replacement of MP5032GJ-Z?
All MP5032GJ-Z units undergo pre-shipment inspection (PSI). If there is an issue with MP5032GJ-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 MP5032GJ-Z part is unused and in its original packaging.
Return procedure for MP5032GJ-Z:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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