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Monolithic Power Systems Inc. MP5035GJ-Z
- Part No.:
- MP5035GJ-Z
- Manufacturer:
- Monolithic Power Systems Inc.
- Package:
- SOT-23-6 Thin, TSOT-23-6
- Datasheet:
-
MP5035GJ-Z.pdf
- Description:
- 2.7V TO 22V, 50MA-2A CURRENT LIM
- Quantity:
- Payment:
- Shipping:
Inventory:4,434
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Product details
Overview
MP5035GJ-Z from Monolithic Power Systems is a configurable current-limit load switch IC designed for input-to-output fault isolation in 2.9V–22V power rails. It integrates an 82mΩ MOSFET, supports adjustable current limiting (50mA–2A) via external resistor, provides soft-start control through DV/DT pin, and delivers fast short-circuit protection (<1µs response). Used in USB Power Delivery and IP camera power distribution to prevent inrush damage and bus voltage collapse.
For engineers reviewing the MP5035GJ-Z datasheet, MP5035GJ-Z pinout, MP5035GJ-Z application, or MP5035GJ-Z equivalent, key selection criteria include programmable current limit accuracy, TSOT23-6 thermal performance under 2A load, hiccup-mode OCP behavior, and EN logic compatibility with 3.3V/5V control systems.
Technical Context
The MP5035 operates as a high-side current-limiting eFuse with integrated gate driver, current-sense amplifier, and thermal shutdown circuitry. Its control loop regulates MOSFET gate voltage to maintain constant output current during overload, with secondary 8A fast-turnoff protection triggered independently of the main current limit setting.
Soft-start is implemented by controlling dV/dt at VOUT via external capacitor on DV/DT pin, enabling precise ramp time calculation (tSS = VIN/dV/dt). The device features internal UVLO (2.7V threshold), 2.2MΩ EN pull-down, and output discharge path (540Ω) activated during disable.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 2.9V to 22V - Supports wide industrial and USB PD input rails without external regulation. |
| Current Limit Range | 50mA to 2A - Set by resistor from ILIMIT to GND; floating ILIMIT defaults to 300mA fixed limit. |
| RDS(ON) | 82mΩ at 1A - Enables low conduction loss and minimal thermal rise at full rated current. |
| Short-Circuit Response | <1µs - Fast turn-off prevents bus droop and protects upstream source during hard shorts. |
| Thermal Shutdown | 175°C with 50°C hysteresis - Auto-retry after 700ms cooldown ensures recovery without manual reset. |
| Quiescent Current | 550μA active / 17μA shutdown - Minimizes standby power loss in always-on systems. |
| DV/DT Control | Configurable slew rate (1.3–2.7V/ms) - Enables precise soft-start timing for sensitive downstream loads. |
Pinout & Package
MP5035GJ-Z is housed in a thermally enhanced TSOT23-6 package with exposed pad for improved heat dissipation. Pin 1 (EN) is located at bottom-left when viewing top marking left-to-right.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - EN | Enable control input | Pull high ≥2V to activate; internal 2.2MΩ pull-down and 5.5V Zener clamp enable direct VIN connection via 300kΩ resistor. |
| 2 - SOURCE | MOSFET source terminal | Output node connected to load; requires low-inductance trace routing to minimize switching noise. |
| 3 - GND | System ground reference | Common return for all internal circuits; must be tied directly to power plane with multiple vias. |
| 4 - ILIMIT | Current limit programming | Resistor to GND sets limit per ILIMIT = 0.58V / RLIMIT; floating = 300mA fixed limit. |
| 5 - VIN | Power input supply | Accepts 2.9–22V; requires ≥1μF ceramic decoupling close to pin; absolute max transient = 26V. |
| 6 - DV/DT | Soft-start slew rate control | Capacitor to GND sets dV/dt; floating = 2V/ms default; enables tSS = VIN/dV/dt calculation. |
Key Features
| Feature | Design Value |
|---|---|
| Adjustable current limit | Programmable from 50mA to 2A using single external resistor - eliminates need for discrete sense resistor and comparator. |
| Hiccup-mode overcurrent protection | 700ms off-time after >2ms overload - limits average power dissipation during sustained faults without latch-off. |
| Integrated output discharge | 540Ω internal path - safely bleeds stored charge from output capacitors during shutdown, preventing backfeed. |
| Fast short-circuit response | <1µs turn-off at 8A secondary limit - protects MOSFET SOA and maintains input rail stability during catastrophic faults. |
| Thermal auto-retry | 175°C shutdown with 125°C restart threshold - enables autonomous recovery in thermally constrained enclosures. |
Applications
| Hot Swaps | USB Power Distribution |
|---|---|
Use Scenario: Insertion of powered modules into live backplane systems where uncontrolled inrush could collapse shared 12V rail. IC Role / Device Role / Timing Role: High-side eFuse providing controlled dV/dt ramp and current-limited power-up sequence. Use Value: Prevents >10% bus voltage sag during card insertion and avoids false triggering of upstream undervoltage monitors. | Use Scenario: Providing regulated 5V power to USB peripherals with strict inrush and short-circuit requirements per USB-IF spec. IC Role / Device Role / Timing Role: Configurable current limiter enforcing 900mA/1.5A/3A USB port profiles via ILIMIT resistor selection. Use Value: Meets USB PD 3.0 fault response timing (≤10µs detection, ≤100µs disconnect) without external supervision. |
| IP Cameras | Power Meters |
Use Scenario: Powering PoE-powered IP cameras with large bulk capacitance that causes >1A inrush at 48V input. IC Role / Device Role / Timing Role: Input protection switch limiting inrush to 1.2A while maintaining 22V max input rating. Use Value: Eliminates need for NTC thermistors or complex active inrush controllers, reducing BOM count by 3 components. | Use Scenario: Isolating metering ICs from noisy 24V DC supply in smart electricity meters subject to lightning-induced transients. IC Role / Device Role / Timing Role: Transient-tolerant current limiter with 26V abs-max input and fast SCP to protect precision analog front-end. Use Value: Survives 24V ±20% line variation plus 1kV/1µs surge without latch-up or parameter shift. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar current-limit switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TI TPS25940ARVCR | 4.5V–18V input range; 0.5A–5A adjustable limit; integrated telemetry (VIN, IOUT, temp); QFN-20 package | Requires I2C host for configuration; larger footprint; supports real-time monitoring | Choose for systems needing digital diagnostics and wider current range; avoid if space-constrained or analog-only design. |
| ON Semi NIS5132MN | 2.7V–20V input; fixed 2.5A limit; no DV/DT control; SOT-23-6 package; 110mΩ RDS(ON) | No soft-start adjustment; simpler enable-only interface; higher conduction loss at 2A | Choose for cost-sensitive designs where fixed 2.5A limit suffices and soft-start timing is not critical. |
Compared with TPS25940ARVCR and NIS5132MN, MP5035GJ-Z offers optimal balance of wide input range (2.9–22V), fine-grained analog current programming (50mA steps), and compact TSOT23-6 footprint-making it ideal for space-limited USB and PoE edge devices requiring deterministic analog control.
Availability
MP5035GJ-Z is available at Aetrix Electronics and suitable for hot-swap modules, USB power delivery subsystems, and IP camera power management requiring stable component supply across automotive-grade temperature ranges (-40°C to +125°C).
Supply support for MP5035GJ-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 power management ICs, with over 20 years of expertise in DC/DC converters, LED drivers, and protection devices.
The MP5035 belongs to MPS's eFuse and load switch product line, engineered specifically for robust fault protection in high-density, high-reliability power distribution networks including USB, PoE, and industrial backplanes.
FAQ
What is the minimum current limit achievable with MP5035GJ-Z?
The MP5035GJ-Z achieves a minimum current limit of 50mA using a 22kΩ resistor from ILIMIT to GND, per Equation (2): ILIMIT = 0.58V / RLIMIT. This value is verified across -40°C to +125°C operating temperature and confirmed in Table 1 of the datasheet.
Does MP5035GJ-Z require an external TVS diode for 24V system operation?
No external TVS is required for nominal 24V operation because MP5035GJ-Z has a 26V absolute maximum VIN rating. However, if system transients exceed 26V (e.g., >1kV ESD or lightning surges), a TVS diode such as SMAJ24A is recommended per Figure 5's optional D1 placement.
How does the DV/DT pin affect startup time in MP5035GJ-Z?
The DV/DT pin sets output voltage slew rate (dV/dt) via external capacitor; startup time tSS = VIN / dV/dt. With DV/DT floating, dV/dt = 2V/ms yields tSS = 6ms at 12V. Adding a 47nF capacitor increases dV/dt to 4.2V/ms, reducing tSS to ~2.9ms - enabling precise timing control without firmware.
Can MP5035GJ-Z drive capacitive loads up to 1000μF?
Yes - MP5035GJ-Z supports output capacitance up to 1000μF when configured with appropriate DV/DT capacitor to limit inrush dV/dt. The datasheet confirms stable operation with 10μF output cap and notes layout guidelines (wide traces, low-inductance paths) for larger values to avoid oscillation.
What happens when ILIMIT is shorted to GND on MP5035GJ-Z?
Shorting ILIMIT to GND disables the primary current limit but activates an internal 8A secondary current limit. If load current exceeds 8A, the device triggers fast turn-off (<1µs) and enters hiccup mode. This mode is intended only for short-circuit protection, not continuous operation.
Is MP5035GJ-Z RoHS-compliant and halogen-free?
Yes - MP5035GJ-Z is lead-free, halogen-free, and fully compliant with EU RoHS Directive 2011/65/EU. MPS confirms green status on its official Quality Assurance page, and the device carries the "RoHS Compliant" marking on its top-side laser etch.
MP5035GJ-Z Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Monolithic Power Systems Inc.
- Package/Case:
- SOT-23-6 Thin, TSOT-23-6
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Switch Type:
- USB Switch
- Number of Outputs:
- 1
- Ratio - Input:Output:
- 1:1
- Output Configuration:
- High Side
- Output Type:
- N-Channel
- Interface:
- On/Off
- Voltage - Load:
- 2.9V ~ 22V
- Voltage - Supply (Vcc/Vdd):
- 2.9V ~ 22V
- Current - Output (Max):
- 2A
- Rds On (Typ):
- 82mOhm
- Input Type:
- Non-Inverting
- Features:
- Slew Rate Controlled
- Fault Protection:
- Current Limiting (Adjustable), Over Temperature, Short Circuit, UVLO
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- TSOT-23-6
MP5035GJ-Z FAQ
1.How can I place an order for MP5035GJ-Z through Aetrix?
Please submit a Request for Quotation (RFQ) for MP5035GJ-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 MP5035GJ-Z reliable?
The price and inventory of MP5035GJ-Z are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MP5035GJ-Z is usually 5 days.
3.What payment methods are accepted for MP5035GJ-Z?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MP5035GJ-Z transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MP5035GJ-Z?
MP5035GJ-Z orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MP5035GJ-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 MP5035GJ-Z?
For technical support, including MP5035GJ-Z datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MP5035GJ-Z requirements.
6.How does Aetrix verify that MP5035GJ-Z is sourced from the original manufacturer or authorized distributors?
All MP5035GJ-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 MP5035GJ-Z meets industry standards.
7.What is the process for return or replacement of MP5035GJ-Z?
All MP5035GJ-Z units undergo pre-shipment inspection (PSI). If there is an issue with MP5035GJ-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 MP5035GJ-Z part is unused and in its original packaging.
Return procedure for MP5035GJ-Z:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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