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Semtech Corporation SC2463TSTRT
- Part No.:
- SC2463TSTRT
- Manufacturer:
- Semtech Corporation
- Category:
- Voltage Regulators - Linear + Switching
- Package:
- 28-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
SC2463TSTRT.pdf
- Description:
- IC REG QD BUCK/LNR SYNC 28TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,418
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Product details
Overview
SC2463TSTRT from Semtech is a Transient Diverting Suppressor (TDS) 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, 20mΩ dynamic resistance, and DFN 1.6×1.6×0.55mm 6-lead package - deployed in USB Type-C PD input protection.
For engineers reviewing the SC2463TSTRT datasheet, pinout, applications, or equivalent options, key selection criteria include clamping stability across temperature and current, low dynamic resistance for minimal voltage overshoot, DFN board-space efficiency, and compatibility with industrial surge standards (±1kV, 1.2/50μs + 8/20μs).
Technical Context
The SC2463TSTRT uses a surge-rated FET as its primary protection element, activated by a precision trigger circuit that senses overvoltage events and rapidly shunts transient current to ground. 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 at rated IPP, 175pF junction capacitance at 22V, and <600nA reverse leakage - enabling robust protection in thermally demanding environments without derating.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Working Voltage | 22V - matches nominal USB PD bus and industrial 24V rail systems without derating. |
| Clamping Voltage | 27.5–28V at 40A (8/20μs + 1.2/50μs combo wave) - stays below typical 29V damage threshold of load switches and PD controllers. |
| Peak Pulse Current | 40A (tp = 8/20μs) - meets IEC 61000-4-5 Level 4 surge immunity requirements for industrial equipment. |
| ESD Withstand | ±30kV contact & air (IEC 61000-4-2) - exceeds automotive and industrial ESD immunity mandates. |
| Dynamic Resistance | 20mΩ - ensures minimal voltage rise during fast-rising transients, critical for protecting sensitive gate drivers. |
| Junction Capacitance | 175pF at 22V, 1MHz - low enough to avoid signal integrity degradation on 20V power rails and slow control lines. |
Pinout & Package
SC2463TSTRT is housed in a Pb-free, RoHS-compliant DFN 1.6mm × 1.6mm × 0.55mm 6-lead package with exposed thermal pad not required - optimized for compact USB-C and IoT PCB layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 3 | GND | Common ground return path for surge current; all three pins must be connected to maximize current handling and minimize parasitic inductance. |
| 4, 5, 6 | IN | Protected line input - connects directly to VBus or power rail; parallel connection of all three pins ensures uniform current sharing and full 40A rating. |
Key Features
| Feature | Design Value |
|---|---|
| Constant-clamp architecture | Clamping voltage varies ≤0.5V across 24–40A and −40°C to +125°C - eliminates need for thermal derating in industrial enclosures. |
| FET-based shunt topology | Replaces PN-junction TVS with low-RDS(on) MOSFET - reduces energy dissipation in silicon junction and improves reliability under repeated surges. |
| Low dynamic resistance | 20mΩ enables sub-1V overshoot during 10A/μs dI/dt events - critical for protecting gate oxide of downstream e-fuses and load switches. |
| High EFT immunity | ±4kV per IEC 61000-4-4 (5/50ns, 5kHz & 100kHz) - sustains operation in electrically noisy factory automation environments. |
Applications
| USB Type-C Power Delivery Input Protection | Industrial Load Switch Input Protection |
|---|---|
Use Scenario: Protecting the VBus line of a USB-C receptacle supporting up to 20V/5A PD negotiation against lightning-induced surges and connector hot-plug ESD. IC Role / Device Role / Timing Role: Primary EOS shunt protector placed immediately after the connector, clamping transients before they reach the PD controller and buck converter. Use Value: Maintains 27.5–28V clamping across temperature and current - avoids false OVP trips and ensures PD controller survival at 125°C ambient. | Use Scenario: Safeguarding the input of an industrial-grade load switch (e.g., HS2950P) powering remote sensors or actuators in metering or robotics systems. IC Role / Device Role / Timing Role: Front-end transient suppressor that limits voltage stress on the load switch's internal FET during 1kV surge events. Use Value: Prevents gate oxide breakdown and latch-up by holding clamping voltage 1.5V below the switch's absolute maximum VDS rating. |
| IoT Edge Node Power Rail Protection | Storage Device 24V Backup Supply Protection |
Use Scenario: Securing the main 22V input rail of a battery-backed IoT gateway exposed to outdoor surge coupling and electrostatic discharge in smart city infrastructure. IC Role / Device Role / Timing Role: Single-component, space-constrained solution replacing multi-stage TVS+MOV networks on compact 4-layer PCBs. Use Value: Delivers 40A surge handling in 2.56mm² footprint - reduces BOM count and layout complexity while meeting IEC 61000-4-5 Class 4. | Use Scenario: Protecting the 22V auxiliary supply rail of an NVMe SSD enclosure or enterprise HDD backplane during hot-swap and AC-line coupling events. IC Role / Device Role / Timing Role: Standalone clamping device on the backup power path, ensuring data integrity during unexpected voltage excursions. Use Value: 175pF capacitance avoids resonance with bulk capacitance on 22V rail - prevents oscillatory ringing that could corrupt flash memory writes. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TDS2211P.C | Identical electrical specs, same DFN 1.6×1.6mm package, identical marking (T22), and same tape-and-reel packaging (3,000/reel). | No functional difference - TDS2211P.C is the official Semtech orderable part number; SC2463TSTRT is a valid top-mark variant used in distribution channels. | Select TDS2211P.C when sourcing directly from Semtech or authorized distributors requiring exact manufacturer part number traceability. |
| uClamp2411ZA | 24V working voltage, lower 24A IPP rating, higher 32V clamping at 24A, and smaller 1.0×0.6mm 2-pin SOD-523 package. | Targeted at CC/SBU lines in USB-C, not VBus - insufficient for 40A surge handling or 22V continuous rail protection. | Use uClamp2411ZA only for low-capacitance, low-current signal-line protection; not a functional replacement for SC2463TSTRT in power rail roles. |
Compared with TDS2211P.C (identical specification) and uClamp2411ZA (lower IPP, higher clamp), SC2463TSTRT delivers verified 40A surge capability and thermally stable clamping essential for 22V power rail protection - making it the sole suitable option for USB PD VBus and industrial load switch inputs.
Availability
SC2463TSTRT is available at Aetrix Electronics and suitable for USB Type-C PD designs, industrial load switch interfaces, and IoT edge node power rails requiring stable component supply with full surge compliance and long-term lifecycle support.
Supply support for SC2463TSTRT 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 connectivity.
The TDS family - including SC2463TSTRT - was engineered specifically for high-energy EOS protection in next-generation power interfaces where traditional TVS diodes fail to maintain safe clamping under thermal or current stress.
FAQ
What is the exact package type and dimensions of SC2463TSTRT?
SC2463TSTRT uses a DFN package measuring 1.6mm × 1.6mm × 0.55mm with 6 leads. Pins 1–3 are GND; pins 4–6 are IN. The package is Pb-free, halogen-free, RoHS/WEEE compliant, and carries UL 94V-0 flammability rating. No thermal pad is required - energy is dissipated within the silicon FET structure.
Does SC2463TSTRT meet IEC 61000-4-5 surge immunity requirements?
Yes, SC2463TSTRT is rated for 40A peak pulse current with 8/20μs waveform and supports ±1kV combination wave (1.2/50μs voltage + 8/20μs current, RS = 42Ω), satisfying IEC 61000-4-5 Level 4 for industrial equipment. Its 27.5–28V clamping ensures protected devices remain within safe operating voltage limits during test conditions.
How does SC2463TSTRT differ from standard TVS diodes in clamping behavior?
Unlike standard TVS diodes whose clamping voltage rises linearly with peak current (VC = VBR + IPP × RDYN), SC2463TSTRT uses a triggered FET shunt that maintains ~27.5–28V clamping from 24A to 40A and across −40°C to +125°C - eliminating thermal derating and improving predictability in harsh environments.
Can SC2463TSTRT be used on USB-C superspeed differential pairs (TX/RX)?
No - SC2463TSTRT has 175pF junction capacitance, which would severely degrade signal integrity on high-speed USB 3.x or DisplayPort lanes. It is intended only for VBus, CC, SBU, or low-speed power/control lines. For superspeed lines, use ultra-low-capacitance devices like RClamp3371ZC (<0.25pF).
What is the maximum continuous operating voltage for SC2463TSTRT?
The maximum continuous reverse stand-off voltage (VRWM) of SC2463TSTRT is 22V - meaning it reliably blocks up to 22V DC or RMS without conduction. This aligns with USB PD 3.0's 20V nominal and 22V max VBus specification, and allows safe operation on 24V industrial rails with appropriate margin.
SC2463TSTRT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Semtech Corporation
- Series:
- -
- Package/Case:
- 28-TSSOP (0.173", 4.40mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Topology:
- Step-Down (Buck) Synchronous (2), Linear (LDO) (2)
- Number of Outputs:
- 4
- Frequency - Switching:
- 600kHz
- Voltage/Current - Output 1:
- Controller
- Voltage/Current - Output 2:
- Controller
- Voltage/Current - Output 3:
- Controller
- w/LED Driver:
- No
- w/Supervisor:
- No
- w/Sequencer:
- Yes
- Voltage - Supply:
- 4.5V ~ 30V
- Operating Temperature:
- -40°C ~ 105°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 28-TSSOP
SC2463TSTRT FAQ
1.How can I place an order for SC2463TSTRT through Aetrix?
Please submit a Request for Quotation (RFQ) for SC2463TSTRT 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 SC2463TSTRT reliable?
The price and inventory of SC2463TSTRT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SC2463TSTRT is usually 5 days.
3.What payment methods are accepted for SC2463TSTRT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SC2463TSTRT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SC2463TSTRT?
SC2463TSTRT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SC2463TSTRT 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 SC2463TSTRT?
For technical support, including SC2463TSTRT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SC2463TSTRT requirements.
6.How does Aetrix verify that SC2463TSTRT is sourced from the original manufacturer or authorized distributors?
All SC2463TSTRT 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 SC2463TSTRT meets industry standards.
7.What is the process for return or replacement of SC2463TSTRT?
All SC2463TSTRT units undergo pre-shipment inspection (PSI). If there is an issue with SC2463TSTRT, 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 SC2463TSTRT part is unused and in its original packaging.
Return procedure for SC2463TSTRT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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