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Semtech Corporation SC9301MLTRT
- Part No.:
- SC9301MLTRT
- Manufacturer:
- Semtech Corporation
- Package:
- 32-WFQFN Exposed Pad
- Datasheet:
-
SC9301MLTRT.pdf
- Description:
- IC REG BUCK ADJ 10A 32MLPQ
- Quantity:
- Payment:
- Shipping:
Inventory:4,326
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Product details
Overview
SC9301MLTRT from Semtech is a Transient Diverting Suppressor (TDS) designed for high-energy EOS protection of 22V-rated power or I/O lines. It delivers ±30kV IEC 61000-4-2 ESD immunity, 40A peak pulse current (8/20μs), and a stable 27.5–28V clamping voltage across its full current and temperature range (−40°C to +125°C). It is deployed in USB Type-C PD bus protection where precise clamping below controller damage thresholds is critical.
For engineers reviewing the SC9301MLTRT datasheet, pinout, applications, or equivalent options, key selection criteria include clamping voltage stability under surge current and temperature, dynamic resistance ≤20 mΩ, junction capacitance of 175 pF at 22V, and DFN 1.6×1.6mm 6-lead layout compatibility with high-density USB PD and industrial load switch designs.
Technical Context
The SC9301MLTRT uses a surge-rated FET as its primary protection element, activated by a precision trigger circuit that turns on the shunt path when transient voltage exceeds breakdown. Unlike conventional TVS diodes, its clamping voltage remains nearly constant-27.5–28V-from 24A to 40A (1.2/50μs + 8/20μs combination waveform, RS = 2Ω)-due to decreasing RDS(on) under surge.
It operates across −40°C to +125°C with reverse stand-off voltage of 22V, breakdown voltage of 25–27.9V (It = 1mA), and reverse leakage <600 nA at VRWM. Its 20 mΩ dynamic resistance and 175 pF junction capacitance at 22V/1MHz support robust protection without signal integrity compromise in high-speed power bus applications.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Working Voltage | 22 V - defines maximum continuous DC operating voltage on protected line without leakage or conduction |
| Clamping Voltage | 27.5–28 V at 40A (8/20μs + 1.2/50μs combo wave, RS = 2Ω) - ensures downstream 24V-rated ICs remain within safe operating margin |
| Peak Pulse Current | 40 A (tp = 8/20μs) - meets IEC 61000-4-5 Level 4 surge immunity for industrial equipment and USB PD systems |
| ESD Withstand | ±30 kV contact & air (IEC 61000-4-2) - exceeds standard USB interface ESD requirements and enables single-device front-end protection |
| Dynamic Resistance | 20 mΩ (measured 1–40A, tp = 8/20μs) - enables low-voltage drop during surge, minimizing energy dissipation in protected FETs or controllers |
| Junction Capacitance | 175 pF at VR = 22 V, f = 1 MHz - compatible with DC power rails and low-speed control lines; not intended for >100 Mbps data lines |
Pinout & Package
SC9301MLTRT is housed in a Pb-free, RoHS-compliant DFN package measuring 1.6 mm × 1.6 mm × 0.55 mm with 6 leads and UL 94V-0 molding compound. The package supports high-density placement adjacent to connectors and integrates thermal and surge current paths via three dedicated ground and three input terminals.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 3 | GND | Common ground return for surge current; all three pins must be connected to maximize current handling and minimize parasitic inductance |
| 4, 5, 6 | IN | Protected line input (e.g., VBUS or power rail); parallel connection of all three pins ensures uniform current sharing and optimal clamping performance |
Key Features
| Feature | Design Value |
|---|---|
| FET-based transient diversion | Replaces conventional TVS with active shunt architecture, enabling flat clamping voltage vs. current and temperature |
| Stable clamping over temperature | 27.5–28 V clamping maintained from −40°C to +125°C - eliminates derating concerns in automotive or industrial ambient conditions |
| High-energy surge rating | 1120 W peak pulse power (8/20μs) - supports repeated exposure to IEC 61000-4-5 ±1 kV surges (RS = 42 Ω, CS = 0.5 μF) |
| Low dynamic resistance | 20 mΩ - reduces voltage overshoot during fast-rising transients and protects sensitive gate oxides in load switches |
| Space-efficient packaging | 1.6 mm × 1.6 mm DFN footprint - saves >50% board area versus SO-8 or SOT-23 TVS alternatives while maintaining 6-terminal current distribution |
Applications
| USB Type-C Power Delivery Bus Protection | Industrial Load Switch Input Protection |
|---|---|
|
Use Scenario: Protecting 20–22V USB PD power bus against lightning-induced surges and connector ESD events in portable docking stations. IC Role / Device Role / Timing Role: Primary front-end EOS suppressor placed between Type-C receptacle and PD controller or buck converter input. Use Value: Maintains clamping at 27.5–28V across 40A surges and full temperature range-prevents overvoltage damage to 24V-rated PD controllers without over-specifying IPP. |
Use Scenario: Safeguarding enable and input pins of high-side load switches (e.g., HS2950P) in remote meters and robotic power modules. IC Role / Device Role / Timing Role: Surge shunt device limiting transient voltage at switch VIN/EN to prevent gate oxide rupture or internal FET avalanche failure. Use Value: 20 mΩ dynamic resistance ensures minimal voltage rise during 8/20μs surges, keeping stress below 30V on switches rated for 30V absolute max. |
| IoT Edge Node Power Rail Protection | Notebook/Tablet VBUS Line Protection |
|
Use Scenario: Securing 12–22V auxiliary power inputs in battery-powered IoT gateways exposed to field ESD and induced surges. IC Role / Device Role / Timing Role: Standalone EOS protector on main system rail, upstream of PMIC or LDO regulators. Use Value: ±30kV ESD rating and stable 27.5V clamping allow single-device compliance with IEC 61000-4-2 Level 4 and IEC 61000-4-5 without secondary clamping stages. |
Use Scenario: Protecting VBUS lines in ultrabooks and 2-in-1 tablets supporting USB PD charging up to 20V. IC Role / Device Role / Timing Role: Primary transient suppressor located at Type-C port entry point, before power path manager ICs. Use Value: 175 pF capacitance avoids signal integrity issues on DC power lines while delivering 40A surge capability in <2.56 mm² footprint. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TDS2211P | Same silicon die, identical electrical specs and package - SC9301MLTRT is Semtech's alternate marking for TDS2211P per official ordering documentation | No functional difference; used interchangeably in BOMs and layout | Select SC9301MLTRT when sourcing from distributors listing this part number; verify reel marking "T22" matches date code format |
| uClamp2411ZA | 24V working voltage, lower 22V clamping (typ. 22V @ 12A), 0.25 pF capacitance, SOD-323 package - optimized for CC/SBU lines, not power rails | Intended for low-capacitance data/control line protection, not 40A power bus duty | Use uClamp2411ZA only for auxiliary signals (CC, SBU); not a functional replacement for SC9301MLTRT on VBUS or load switch inputs |
Compared with TDS2211P, SC9301MLTRT is an identical device with alternate marking-no design change required. Versus uClamp2411ZA, SC9301MLTRT provides 40A surge capacity and 22V working voltage suited for power rail protection, while uClamp2411ZA serves low-capacitance signal-line roles with lower clamping but no high-current capability.
Availability
SC9301MLTRT is available at Aetrix Electronics and suitable for USB Type-C PD systems, industrial load switch interfaces, and IoT edge node power rails requiring stable component supply, consistent surge performance, and long-term obsolescence management.
Supply support for SC9301MLTRT 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
Semtech Corporation is a U.S.-based fabless semiconductor company specializing in high-performance analog and mixed-signal semiconductors for power management, protection, and signal integrity.
The SC9301MLTRT belongs to Semtech's Transient Diverting Suppressor (TDS) product line, engineered to replace conventional TVS diodes in high-reliability power rail protection where flat clamping voltage and temperature stability are mandatory.
FAQ
What is the exact package type and dimensions of SC9301MLTRT?
SC9301MLTRT uses a DFN package measuring 1.6 mm × 1.6 mm × 0.55 mm with 6 leads. Pin 1 is marked by a laser dot; pins 1–3 are GND, and pins 4–6 are IN. The package is Pb-free, halogen-free, RoHS/WEEE compliant, and rated UL 94V-0 for flammability. This footprint matches Semtech's TDS2211P and is optimized for high-current PCB routing with minimal parasitic inductance.
Is SC9301MLTRT pin-compatible with TDS2211P?
Yes-SC9301MLTRT is Semtech's alternate orderable part number for the identical TDS2211P device. Both share the same DFN 1.6×1.6mm 6-lead package, pin configuration (GND on 1–3, IN on 4–6), electrical specifications, and thermal behavior. No PCB or schematic changes are needed when substituting SC9301MLTRT for TDS2211P in existing designs.
What clamping voltage does SC9301MLTRT deliver at 40A surge current?
SC9301MLTRT delivers a clamping voltage of 27.5–28 V at 40A peak pulse current using the IEC 61000-4-5 combination waveform (1.2/50μs voltage + 8/20μs current, RS = 2Ω). This value is guaranteed across −40°C to +125°C and reflects the device's FET-based architecture, which maintains near-constant clamping unlike conventional TVS diodes whose voltage rises linearly with current.
Can SC9301MLTRT protect USB Type-C superspeed data lines (TX/RX)?
No-SC9301MLTRT is not suitable for USB Type-C superspeed differential pairs (TX+/TX−, RX+/RX−). Its 175 pF junction capacitance would severely degrade signal integrity above ~100 Mbps. For those lines, Semtech recommends ultra-low-capacitance devices like RClamp3371ZC (<0.25 pF). SC9301MLTRT is intended exclusively for VBUS, CC, SBU, or load switch power/control lines.
What is the maximum operating temperature range for SC9301MLTRT?
SC9301MLTRT is rated for continuous operation from −40°C to +125°C ambient temperature. Its clamping voltage, leakage current (<600 nA at 22V), and dynamic resistance (20 mΩ) are all characterized and guaranteed across this full range. Junction temperature may reach +150°C under surge conditions, but steady-state thermal design should maintain ambient within the specified limits for long-term reliability.
SC9301MLTRT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Semtech Corporation
- Series:
- EcoSpeed®
- Package/Case:
- 32-WFQFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Function:
- Step-Down
- Output Configuration:
- Positive
- Topology:
- Buck
- Output Type:
- Adjustable
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 3V
- Voltage - Input (Max):
- 28V
- Voltage - Output (Min/Fixed):
- 0.6V
- Voltage - Output (Max):
- 5.5V
- Current - Output:
- 10A
- Frequency - Switching:
- 200kHz ~ 1MHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 32-MLPQ (5x5)
SC9301MLTRT FAQ
1.How can I place an order for SC9301MLTRT through Aetrix?
Please submit a Request for Quotation (RFQ) for SC9301MLTRT 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 SC9301MLTRT reliable?
The price and inventory of SC9301MLTRT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SC9301MLTRT is usually 5 days.
3.What payment methods are accepted for SC9301MLTRT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SC9301MLTRT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SC9301MLTRT?
SC9301MLTRT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SC9301MLTRT 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 SC9301MLTRT?
For technical support, including SC9301MLTRT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SC9301MLTRT requirements.
6.How does Aetrix verify that SC9301MLTRT is sourced from the original manufacturer or authorized distributors?
All SC9301MLTRT 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 SC9301MLTRT meets industry standards.
7.What is the process for return or replacement of SC9301MLTRT?
All SC9301MLTRT units undergo pre-shipment inspection (PSI). If there is an issue with SC9301MLTRT, 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 SC9301MLTRT part is unused and in its original packaging.
Return procedure for SC9301MLTRT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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