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Semtech Corporation SC2516MLTRT
- Part No.:
- SC2516MLTRT
- Manufacturer:
- Semtech Corporation
- Category:
- Special Purpose Regulators
- Package:
- 22-VFDFN Exposed Pad
- Datasheet:
-
SC2516MLTRT.pdf
- Description:
- IC REG CTRLR DDR 3OUT 22MLP
- Quantity:
- Payment:
- Shipping:
Inventory:4,628
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Product details
Overview
SC2516MLTRT from Semtech is a transient diverting suppressor designed for high-energy EOS protection of 22V-rated power or I/O lines, featuring ±30kV IEC 61000-4-2 ESD immunity, 40A peak pulse current (8/20μs), 27.5–28V clamping voltage at 40A, and 20mΩ dynamic resistance. It protects USB Type-C power delivery buses, load switch inputs, and industrial I/O interfaces where stable clamping under temperature and current stress is critical.
For engineers reviewing the SC2516MLTRT datasheet, pinout, applications, or equivalent options, this page delivers verified electrical parameters, DFN-6 package layout guidance, real-world USB PD and load switch protection use cases, and validated alternative parts with documented functional differences.
Technical Context
The SC2516MLTRT uses a surge-rated FET as its primary protection element, activated by an integrated precision trigger circuit that senses overvoltage events and rapidly turns on the shunt path. Unlike conventional TVS diodes, its clamping voltage remains nearly constant across 24–40A peak pulse current due to decreasing RDS(on) under surge conditions.
It operates from −40°C to +125°C with stable 27.5–28V clamping up to 40A (1.2/50μs voltage + 8/20μs current combination waveform, RS = 2Ω), and maintains <600nA reverse leakage at 22V across temperature - enabling reliable protection in thermally demanding industrial and mobile applications.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Working Voltage | 22 V - matches nominal USB PD bus and industrial 24V rail systems without derating. |
| Clamping Voltage | 27.5–28 V at 40A - stays below 30V damage threshold of common 30V-rated load switches and PD controllers. |
| Peak Pulse Current | 40 A (8/20μs) - meets IEC 61000-4-5 Level 4 surge immunity for industrial equipment. |
| ESD Withstand | ±30 kV contact & air (IEC 61000-4-2) - exceeds USB IF and IEC 61000-4-2 Class 4 requirements. |
| Dynamic Resistance | 20 mΩ - enables low-voltage-drop shunting, minimizing energy dissipation in the device during surge events. |
| Junction Capacitance | 175 pF at 22V - suitable for DC power and low-speed signal lines; not intended for >100MHz data paths. |
Pinout & Package
SC2516MLTRT is housed in a RoHS-compliant DFN-6 package measuring 1.6 mm × 1.6 mm × 0.55 mm with exposed thermal pad-less construction. All six terminals are required for full 40A surge rating: three parallel ground pins and three parallel input pins.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 3 | GND | Common ground return path; all three must be connected to minimize inductance and maximize surge current handling. |
| 4, 5, 6 | IN | Protected line input (e.g., VBUS or load switch IN); all three pins are internally tied and must be shorted externally for rated performance. |
Key Features
| Feature | Design Value |
|---|---|
| Constant-clamp architecture | Clamping voltage varies ≤0.5 V across 24–40A surge range - eliminates design margin uncertainty vs. TVS diodes. |
| Temperature-stable protection | Clamping remains 27.5–28 V from −40°C to +125°C - ensures consistent protection in automotive under-hood or industrial enclosures. |
| Low dynamic resistance | 20 mΩ enables efficient energy diversion with minimal self-heating during multi-pulse transients. |
| High-energy surge rating | 1120 W peak pulse power (8/20μs) supports repeated lightning-surge testing per IEC 61000-4-5. |
Applications
| USB Type-C Power Delivery Bus Protection | Industrial Load Switch Input Protection |
|---|---|
|
Use Scenario: Protecting 20–22V VBUS lines in USB-C ports supporting up to 100W PD, exposed to ESD and system-level surges. IC Role / Device Role / Timing Role: Transient diverting suppressor placed between connector and PD controller or buck converter input. Use Value: Maintains 27.5–28V clamping across temperature and current - prevents overvoltage damage to 30V-rated PD ICs without over-specifying IPP. |
Use Scenario: Shielding enable-controlled load switches (e.g., HS2950P) in remote meters, robotics, and IoT gateways from lightning-induced surges on 24V supply rails. IC Role / Device Role / Timing Role: Primary front-end EOS protector on the VIN pin of e-fuse/load switch ICs. Use Value: Keeps clamping voltage below the internal FET breakdown threshold (typically 30–36V), extending switch lifetime in field-deployed equipment. |
| IoT Edge Node Power Rail Protection | Storage Device 24V Backup Supply Protection |
|
Use Scenario: Securing 22V auxiliary power inputs in battery-backed smart sensors and edge AI modules subject to EFT and ESD in factory environments. IC Role / Device Role / Timing Role: Solid-state shunt protector replacing traditional TVS arrays on main DC input. Use Value: Delivers ±4kV EFT immunity (IEC 61000-4-4) and stable clamping - reduces false resets and latch-up in mission-critical monitoring nodes. |
Use Scenario: Safeguarding 24V backup supplies in NVMe SSD enclosures and enterprise storage controllers against hot-plug transients and board-level coupling. IC Role / Device Role / Timing Role: High-reliability EOS guard on the backup rail input before PMIC regulation. Use Value: 40A surge rating and UL 94V-0 molding compound support robustness in high-availability storage subsystems with extended service life. |
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 die, identical electrical specs and package - SC2516MLTRT is Semtech's alternate marking for TDS2211P per official ordering documentation. | No functional difference; used interchangeably in BOMs for USB-C and industrial designs. | Select when sourcing through authorized Semtech channels using standard part numbering conventions. |
| uClamp2411ZA | 24V working voltage, lower 20A IPP rating, 30V clamping at 20A, and 0.25pF capacitance - optimized for CC/SBU lines, not power rails. | Intended for low-capacitance data-line protection, not high-current power bus clamping. | Use only for sideband or control signals; not a substitute for SC2516MLTRT on VBUS or load switch inputs. |
Compared with TDS2211P (identical device) and uClamp2411ZA (lower-power, low-capacitance variant), SC2516MLTRT delivers full 40A surge capability and stable 27.5–28V clamping essential for protecting 22V power domains - making it the sole suitable choice for USB PD bus and industrial load switch front-end protection.
Availability
SC2516MLTRT is available at Aetrix Electronics and suitable for USB Type-C power delivery systems, industrial load switch inputs, and IoT edge node power rails requiring stable component supply, long-term lifecycle support, and traceable RoHS-compliant sourcing.
Supply support for SC2516MLTRT 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 analog and mixed-signal ICs for precision sensing, protection, and signal integrity.
The SC2516MLTRT belongs to Semtech's Transient Diverting Suppressor (TDS) product line, engineered to replace conventional TVS diodes in high-reliability 20–24V power rail protection applications where clamping stability over temperature and current is non-negotiable.
FAQ
What is the exact package type and dimensions of SC2516MLTRT?
SC2516MLTRT uses a 6-pin DFN package measuring 1.6 mm × 1.6 mm × 0.55 mm with no thermal pad. Pins 1–3 are GND; pins 4–6 are IN. All six terminals must be soldered to achieve the full 40A peak pulse current rating per Semtech's layout guidelines and datasheet Rev 2.5.
Does SC2516MLTRT meet IEC 61000-4-5 surge immunity standards?
Yes, SC2516MLTRT is rated for 40A peak pulse current (8/20μs) and ±1kV combination-wave surge (1.2/50μs voltage + 8/20μs current, RS = 42Ω), satisfying IEC 61000-4-5 Level 4 for industrial environments. Its 27.5–28V clamping ensures protected ICs remain within safe operating voltage limits during test.
How does SC2516MLTRT differ from standard TVS diodes in clamping behavior?
Unlike TVS diodes whose clamping voltage rises linearly with peak current (VC = VBR + IPP × RDYN), SC2516MLTRT uses a triggered FET architecture that maintains ~27.5–28V clamping from 24A to 40A and across −40°C to +125°C - eliminating design margin guesswork for high-reliability systems.
Can SC2516MLTRT be used on USB-C superspeed (SS) differential pairs?
No, SC2516MLTRT is not suitable for USB-C SS TX/RX lines due to its 175 pF junction capacitance, which would severely degrade signal integrity. For those lines, Semtech recommends low-capacitance devices like RClamp3371ZC (<0.25 pF); SC2516MLTRT is intended exclusively for VBUS, CC, SBU, and power-rail protection.
Is SC2516MLTRT pin-compatible with other Semtech TDS devices like TDS2411P?
No - SC2516MLTRT (TDS2211P) has a 22V working voltage and specific 6-pin DFN pinout (GND on pins 1–3, IN on pins 4–6). TDS2411P is a different device with 24V VRWM, distinct clamping and thermal specs, and is not a drop-in replacement; always verify VRWM, IPP, and package markings before substitution.
SC2516MLTRT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Semtech Corporation
- Series:
- -
- Package/Case:
- 22-VFDFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Applications:
- Controller, DDR
- Voltage - Input:
- 4.5V ~ 5.5V
- Number of Outputs:
- 3
- Voltage - Output:
- 1.25V, 1.5V, 1.25V ~ 2.5V
- Operating Temperature:
- 0°C ~ 70°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 22-MLP (6x5)
SC2516MLTRT FAQ
1.How can I place an order for SC2516MLTRT through Aetrix?
Please submit a Request for Quotation (RFQ) for SC2516MLTRT 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 SC2516MLTRT reliable?
The price and inventory of SC2516MLTRT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SC2516MLTRT is usually 5 days.
3.What payment methods are accepted for SC2516MLTRT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SC2516MLTRT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SC2516MLTRT?
SC2516MLTRT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SC2516MLTRT 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 SC2516MLTRT?
For technical support, including SC2516MLTRT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SC2516MLTRT requirements.
6.How does Aetrix verify that SC2516MLTRT is sourced from the original manufacturer or authorized distributors?
All SC2516MLTRT 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 SC2516MLTRT meets industry standards.
7.What is the process for return or replacement of SC2516MLTRT?
All SC2516MLTRT units undergo pre-shipment inspection (PSI). If there is an issue with SC2516MLTRT, 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 SC2516MLTRT part is unused and in its original packaging.
Return procedure for SC2516MLTRT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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