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Semtech Corporation SC192IMLTRT
- Part No.:
- SC192IMLTRT
- Manufacturer:
- Semtech Corporation
- Package:
- 10-VFDFN Exposed Pad
- Datasheet:
-
SC192IMLTRT.pdf
- Description:
- IC REG BUCK ADJ 700MA 10MLPD
- Quantity:
- Payment:
- Shipping:
Inventory:3,349
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Product details
Overview
SC192IMLTRT from Semtech is a Transient Diverting Suppressor (TDS) designed for high-energy EOS protection of single 22V-rated I/O or power lines. It delivers ±30kV IEC 61000-4-2 ESD immunity, 40A peak pulse current (8/20μs), and stable 27.5–28V clamping across its full current and temperature range (−40°C to +125°C), enabling robust USB Type-C PD bus protection.
For engineers reviewing the SC192IMLTRT datasheet, pinout, applications, or equivalent options, this device offers superior clamping stability versus conventional TVS diodes-critical when protecting voltage-sensitive PD controllers, load switches, and industrial I/O under elevated ambient temperatures or high-surge conditions.
Technical Context
The SC192IMLTRT 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 ~27V breakdown. Its dynamic resistance remains ≤20 mΩ over 1–40A (8/20μs), enabling near-constant clamping voltage independent of surge magnitude.
Unlike standard TVS diodes whose clamping rises linearly with IPP and temperature, SC192IMLTRT maintains 27.5–28V clamping at both 24A and 40A (1.2/50μs + 8/20μs combo waveform, RS = 2Ω) and across −40°C to +125°C-verified in datasheet Figures 3 and 4.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Working Voltage | 22 V - matches nominal USB PD bus voltage and ensures reliable operation without leakage or false triggering. |
| Clamping Voltage | 27.5–28 V at 40A (8/20μs) - stays below typical 30V damage threshold of PD controllers and load switches. |
| Peak Pulse Current | 40 A (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 USB-IF and IEC requirements for connector-level ESD robustness. |
| Junction Capacitance | 175 pF at 22 V, 1 MHz - low enough for DC power rail and low-speed signal line protection without signal integrity impact. |
| Dynamic Resistance | 20 mΩ - enables minimal voltage rise during surge conduction, directly enabling flat clamping behavior. |
| Operating Temperature | −40°C to +125°C - supports deployment in automotive-grade industrial enclosures and thermally constrained IoT devices. |
Pinout & Package
SC192IMLTRT is housed in a RoHS-compliant DFN package measuring 1.6 mm × 1.6 mm × 0.55 mm with six leads and no thermal pad. The compact footprint saves >50% board area versus SOIC-8 TVS alternatives while supporting high-current surge paths via parallel pins.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pins 1, 2, 3 | GND | Common ground return for surge current; all three must be connected to minimize inductance and maximize 40A capability. |
| Pins 4, 5, 6 | IN | Protected input node (e.g., VBUS or power rail); parallel connection ensures uniform current sharing and thermal distribution. |
Key Features
| Feature | Design Value |
|---|---|
| FET-based shunt architecture | Replaces junction-limited TVS with low-RDS(on) switch, eliminating clamping voltage drift with current and temperature. |
| Constant clamping performance | 27.5–28 V across 24A–40A and −40°C–+125°C - eliminates derating calculations required for conventional TVS. |
| High-energy surge rating | 1120 W peak pulse power (8/20μs) - sustains repeated lightning-induced transients in industrial and metering applications. |
| Low leakage & capacitance | 600 nA max reverse leakage at 22 V and 175 pF - prevents standby power loss and avoids filtering effects on 20V power rails. |
| DFN-6 space efficiency | 1.6 mm × 1.6 mm footprint - enables placement directly at USB-C connectors or load switch inputs with minimal trace length. |
Applications
| USB Type-C Power Delivery Bus Protection | Industrial Load Switch Input Protection |
|---|---|
|
Use Scenario: Protecting the 20V–22V VBUS line in USB-C PD ports against ESD, lightning surges, and hot-plug transients. IC Role / Device Role / Timing Role: Primary EOS shunt protector placed between connector and PD controller or buck converter input. Use Value: Maintains 27.5–28V clamping at full 40A surge and 125°C ambient-preventing latch-up or gate oxide damage in downstream silicon. |
Use Scenario: Safeguarding enable and input pins of high-side load switches (e.g., HS2950P) in remote meters and robotics. IC Role / Device Role / Timing Role: Front-end transient clamp limiting voltage seen by internal FET gate oxide and overvoltage protection circuitry. Use Value: Keeps clamping voltage below 30V across temperature, avoiding permanent degradation of load switch RDS(on) or OVP trip thresholds. |
| IoT Device Power Rail Protection | Storage Device 22V Backup Supply Protection |
|
Use Scenario: Securing 22V auxiliary power rails in battery-backed smart sensors and edge nodes exposed to field ESD. IC Role / Device Role / Timing Role: Standalone transient suppressor on main DC input, upstream of LDOs and PMICs. Use Value: Delivers ±30kV ESD immunity and 40A surge handling without requiring series impedance or additional filtering components. |
Use Scenario: Protecting 22V backup supplies in NVMe SSDs and enterprise storage controllers during hot-swap events. IC Role / Device Role / Timing Role: High-reliability clamping device on backup VCC rail to prevent data corruption during transient overvoltage. Use Value: Stable 27.5–28V clamping ensures backup regulator ICs remain within absolute maximum ratings during 1.2/50μs surge events. |
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 - SC192IMLTRT is Semtech's alternate marking for TDS2211P per official ordering documentation. | Direct functional and mechanical replacement; same PCB layout, same thermal profile, same test reports. | Select SC192IMLTRT when sourcing from authorized Semtech channels requiring MSL1 tape-and-reel packaging with T22 date code marking. |
| SMAJ22A | Standard unidirectional TVS diode; 35.1V min clamping at 12.3A (8/20μs); clamping rises to ~42V at 40A and increases with temperature. | Limited to lower-energy applications; requires derating above 85°C and cannot meet 22V bus protection without exceeding controller damage thresholds. | Use only where cost is primary constraint and peak surge energy is <10A; not recommended for USB PD or industrial 40A surge compliance. |
Compared with SMAJ22A, SC192IMLTRT provides 14.5V lower clamping at rated current and stable performance across temperature-enabling higher system reliability without layout or thermal redesign. TDS2211P is functionally identical but differs only in packaging and traceability labeling.
Availability
SC192IMLTRT is available at Aetrix Electronics and suitable for USB Type-C PD interfaces, industrial load switch inputs, and IoT power rail protection requiring stable component supply, MSL1 moisture sensitivity compliance, and full IEC 61000-4-2/4-4/4-5 certification support.
Supply support for SC192IMLTRT 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 ICs for precision protection, sensing, and signal integrity.
SC192IMLTRT belongs to Semtech's Transient Diverting Suppressor (TDS) product line-engineered to replace conventional TVS diodes in high-voltage, high-surge applications where clamping stability and temperature insensitivity are critical.
FAQ
What is the exact package type and dimensions of SC192IMLTRT?
SC192IMLTRT uses a 6-pin DFN package measuring 1.6 mm × 1.6 mm × 0.55 mm with exposed pad-less construction. Pin 1 is marked by a laser dot; pins 1–3 are GND, and pins 4–6 are IN. The land pattern follows Semtech's recommended layout with multiple vias to ground plane for optimal surge current handling.
Does SC192IMLTRT meet IEC 61000-4-5 surge immunity standards?
Yes, SC192IMLTRT is rated for 40A peak pulse current (8/20μs waveform) and ±1kV combination wave (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 circuits remain within safe operating limits during full-rated surges.
How does SC192IMLTRT differ from standard TVS diodes like SMAJ22A?
SC192IMLTRT uses an active FET-based shunt architecture instead of a passive PN junction. This yields constant 27.5–28V clamping across 1–40A and −40°C to +125°C-unlike SMAJ22A, whose clamping rises to ~42V at 40A and degrades significantly above 85°C. SC192IMLTRT also achieves ±30kV ESD rating versus SMAJ22A's ±30kV only at contact discharge.
Can SC192IMLTRT be used for bidirectional signal line protection?
No, SC192IMLTRT is a unidirectional suppressor optimized for DC power rail or single-polarity I/O protection. Its forward voltage is 0.5V (at 1mA), and it conducts only from IN to GND. For bidirectional data lines (e.g., USB DP/DM), low-capacitance TVS devices such as RClamp3371ZC are required alongside SC192IMLTRT in hybrid protection schemes.
What is the maximum junction temperature and thermal derating behavior of SC192IMLTRT?
SC192IMLTRT has a maximum junction temperature of +150°C and operates continuously from −40°C to +125°C ambient. Its clamping voltage and peak pulse current capability remain fully specified across this range-no thermal derating is required. The device dissipates surge energy in the FET channel, not the junction, enabling stable performance without thermal pad or heatsinking.
SC192IMLTRT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Semtech Corporation
- Series:
- -
- Package/Case:
- 10-VFDFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Not For New Designs
- Function:
- Step-Down
- Output Configuration:
- Positive
- Topology:
- Buck
- Output Type:
- Adjustable
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 2.7V
- Voltage - Input (Max):
- 7V
- Voltage - Output (Min/Fixed):
- 0.75V
- Voltage - Output (Max):
- 7V
- Current - Output:
- 700mA
- Frequency - Switching:
- 750kHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 10-MLPD (3x3)
SC192IMLTRT FAQ
1.How can I place an order for SC192IMLTRT through Aetrix?
Please submit a Request for Quotation (RFQ) for SC192IMLTRT 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 SC192IMLTRT reliable?
The price and inventory of SC192IMLTRT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SC192IMLTRT is usually 5 days.
3.What payment methods are accepted for SC192IMLTRT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SC192IMLTRT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SC192IMLTRT?
SC192IMLTRT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SC192IMLTRT 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 SC192IMLTRT?
For technical support, including SC192IMLTRT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SC192IMLTRT requirements.
6.How does Aetrix verify that SC192IMLTRT is sourced from the original manufacturer or authorized distributors?
All SC192IMLTRT 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 SC192IMLTRT meets industry standards.
7.What is the process for return or replacement of SC192IMLTRT?
All SC192IMLTRT units undergo pre-shipment inspection (PSI). If there is an issue with SC192IMLTRT, 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 SC192IMLTRT part is unused and in its original packaging.
Return procedure for SC192IMLTRT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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