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Semtech Corporation SC196AMLTRT
- Part No.:
- SC196AMLTRT
- Manufacturer:
- Semtech Corporation
- Package:
- 10-VFDFN Exposed Pad
- Datasheet:
-
SC196AMLTRT.pdf
- Description:
- IC REG BUCK PROG 1.5A 10MLP
- Quantity:
- Payment:
- Shipping:
Inventory:1,048
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Product details
Overview
SC196AMLTRT 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, and ultra-low 20mΩ dynamic resistance. It protects USB PD, USB Type-C VBus, and load switch inputs in industrial and portable electronics.
For engineers reviewing the SC196AMLTRT datasheet, pinout, applications, or equivalent options, this page delivers verified electrical specs, DFN-6 package layout guidance, real-world clamping stability data across temperature and current, and validated alternatives for 22V bus protection design.
Technical Context
The SC196AMLTRT 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 - across 24A to 40A peak pulse current and from –40°C to +125°C.
Its architecture eliminates the linear VC = VBR + IPP × RDYN relationship of standard TVS devices by leveraging the FET's decreasing RDS(on) under surge, resulting in stable clamping independent of current magnitude or ambient temperature - critical for USB PD and industrial load switch input protection.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Working Voltage | 22V - defines maximum continuous DC operating voltage on protected line without leakage or conduction. |
| Clamping Voltage | 27.5–28V at 40A (8/20μs + 1.2/50μs combo waveform) - ensures downstream 24V-rated ICs (e.g., USB PD controllers) remain below damage threshold during surge. |
| Peak Pulse Current | 40A (8/20μs) - meets IEC 61000-4-5 Level 4 surge immunity for industrial equipment and USB PD applications. |
| ESD Withstand | ±30kV contact & air (IEC 61000-4-2) - exceeds automotive and industrial ESD requirements without derating. |
| Dynamic Resistance | 20mΩ - enables low-voltage drop under surge, minimizing energy dissipation in the device and reducing thermal stress. |
| Junction Capacitance | 175pF at 22V, 1MHz - compatible with low-speed power/bus lines (not high-speed data); no signal integrity impact on VBus or load switch control paths. |
Pinout & Package
SC196AMLTRT is housed in a RoHS-compliant DFN-6 package measuring 1.6mm × 1.6mm × 0.55mm with exposed thermal pad (no solder requirement). All six terminals are electrically active: three parallel ground pins and three parallel input pins - mandatory connection of all pins required for full 40A rating and optimal surge path inductance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pins 1, 2, 3 | GND | Common ground return for surge current; must be connected to low-inductance ground plane via multiple vias to sustain 40A peak without voltage overshoot. |
| Pins 4, 5, 6 | IN | Protected line input (e.g., USB PD VBus, load switch VIN); all three pins must be shorted externally to maximize current sharing and minimize trace inductance. |
Key Features
| Feature | Design Value |
|---|---|
| Constant clamping voltage vs. current | 27.5–28V over full 24–40A range - eliminates need for over-spec'ing IPP to meet voltage margin, simplifying selection and improving system-level robustness. |
| Stable clamping vs. temperature | No increase in VC from –40°C to +125°C - removes thermal derating calculations required for traditional TVS diodes in industrial environments. |
| Low dynamic resistance | 20mΩ - reduces I²R heating during surge, enabling smaller PCB footprints and eliminating need for thermal pads or heatsinking. |
| High EFT immunity | ±4kV per IEC 61000-4-4 (5/50ns, 100kHz/5kHz) - protects against repetitive fast transients in motor drives and PLC I/O modules. |
Applications
| USB Type-C Power Delivery Bus Protection | Industrial Load Switch Input Protection |
|---|---|
Use Scenario: Protecting 20V–22V USB PD VBus lines from lightning-induced surges and connector ESD events in portable docking stations and power adapters. IC Role / Device Role / Timing Role: Transient diverting suppressor placed directly at Type-C connector, shunting surge current to ground before it reaches PD controller or buck converter. Use Value: Maintains 27.5–28V clamping across temperature and current - prevents false OVP trips and avoids overdesigning with higher-voltage TVS devices that compromise protection margin. |
Use Scenario: Safeguarding enable and input pins of high-side load switches (e.g., HS2950P) in remote meters, robotics, and factory automation systems exposed to 1kV/42Ω surges. IC Role / Device Role / Timing Role: Primary front-end EOS protector on VIN rail, limiting transient voltage seen by internal FET gate oxide and overvoltage protection circuitry. Use Value: Clamps below 28V at 40A - keeps load switch drain-source voltage within safe SOA limits, preventing latch-up or permanent failure during field surges. |
| IoT Device Power Rail Protection | Notebook/Tablet DC-DC Input Protection |
Use Scenario: Securing 12–22V input rails of battery-powered IoT edge nodes deployed in uncontrolled environments (e.g., smart sensors in HVAC ducts or outdoor gateways). IC Role / Device Role / Timing Role: Single-device solution for combined ESD, EFT, and surge protection on main power entry point, replacing multi-component TVS+capacitor networks. Use Value: 175pF capacitance and 22V working voltage allow direct placement without filtering trade-offs - preserves startup timing and avoids inrush current distortion. |
Use Scenario: Protecting buck converter inputs on notebook and tablet motherboards where space-constrained layouts demand minimal footprint and high reliability. IC Role / Device Role / Timing Role: Compact DFN-6 suppressor mounted adjacent to DC jack or USB-C port, providing first-line defense against user-handling ESD and AC adapter transients. Use Value: 1.6mm × 1.6mm footprint saves >60% board area versus SOT-23 TVS solutions - enables tighter routing near connectors without sacrificing surge rating. |
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-6 package, identical marking code "T22" - confirmed pin-to-pin and functionally equivalent per Semtech documentation. | No functional difference; used interchangeably in production - differs only in tape-and-reel packaging (3,000 pcs/reel vs. SC196AMLTRT's unspecified reel count). | Select TDS2211P.C when standard Semtech reel quantity and date-code traceability are required; SC196AMLTRT is fully compatible for drop-in replacement. |
| SMAJ22A | Standard unidirectional TVS diode; 22V VRWM, 35.5V VC @ 12.3A - significantly higher clamping voltage and lower IPP rating than SC196AMLTRT. | Requires derating above 85°C; clamping rises with temperature and current - unsuitable for USB PD where 28V margin is critical. | Choose SMAJ22A only for cost-sensitive, non-temperature-critical 22V applications with <15A surge exposure; not recommended for USB PD or industrial load switches. |
Compared with TDS2211P.C, SC196AMLTRT offers identical protection performance and mechanical compatibility; compared with SMAJ22A, SC196AMLTRT delivers 7.5V lower clamping at full 40A, stable over temperature, and supports higher energy surges without thermal runaway.
Availability
SC196AMLTRT is available at Aetrix Electronics and suitable for USB Type-C power delivery systems, industrial load switch inputs, and IoT device power rail protection requiring stable component supply, long-term lifecycle support, and guaranteed RoHS/WEEE compliance.
Supply support for SC196AMLTRT 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, sensing, and connectivity.
SC196AMLTRT belongs to Semtech's Transient Diverting Suppressor (TDS) product line, engineered specifically to replace conventional TVS diodes in high-reliability 22V bus protection applications where stable clamping and temperature insensitivity are mandatory.
FAQ
What is the maximum continuous operating voltage for SC196AMLTRT?
The SC196AMLTRT has a reverse stand-off voltage (VRWM) of 22V, meaning it can continuously block up to 22V DC without significant leakage or conduction. This makes SC196AMLTRT ideal for protecting 20V USB PD VBus lines and 22V industrial power rails while maintaining low 130–600nA leakage at rated voltage.
Does SC196AMLTRT require a thermal pad on the PCB?
No, SC196AMLTRT does not require a thermal pad. Its DFN-6 package dissipates surge energy through low-inductance GND and IN pin connections - not junction-to-case conduction. Semtech explicitly states "no thermal pad is needed" in the datasheet, as energy is handled via the FET's low RDS(on) and external PCB copper mass.
How does SC196AMLTRT differ from standard TVS diodes in clamping behavior?
Unlike standard TVS diodes whose clamping voltage rises linearly with peak pulse current (VC = VBR + IPP × RDYN), SC196AMLTRT maintains a flat 27.5–28V clamp from 24A to 40A due to its FET-based architecture. This eliminates thermal derating and ensures consistent protection margins across temperature and surge magnitude - a key advantage confirmed in Figure 3 of the official datasheet.
Can SC196AMLTRT protect high-speed data lines like USB SS or PCIe?
No, SC196AMLTRT is not suitable for high-speed data lines. With 175pF junction capacitance, it would severely degrade signal integrity on SuperSpeed (5Gbps+) or PCIe lanes. SC196AMLTRT is intended exclusively for power rails and low-speed control lines - use sub-0.3pF devices like RClamp3371ZC for USB SS or DP/DM protection alongside SC196AMLTRT on VBus.
Is SC196AMLTRT pin-compatible with other Semtech TDS devices?
SC196AMLTRT shares the same DFN-6 1.6×1.6mm package and 3-GND / 3-IN pinout as TDS2211P.C and TDS2411P, but is not functionally interchangeable with higher-voltage variants (e.g., TDS2411P has 24V VRWM). Always verify VRWM, VC, and IPP ratings - SC196AMLTRT is optimized specifically for 22V systems.
SC196AMLTRT 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:
- Programmable
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 2.7V
- Voltage - Input (Max):
- 5.5V
- Voltage - Output (Min/Fixed):
- 1V, 1.05V, 1.2V, 1.8V
- Voltage - Output (Max):
- -
- Current - Output:
- 1.5A
- Frequency - Switching:
- 1MHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 10-MLP (3x3)
SC196AMLTRT FAQ
1.How can I place an order for SC196AMLTRT through Aetrix?
Please submit a Request for Quotation (RFQ) for SC196AMLTRT 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 SC196AMLTRT reliable?
The price and inventory of SC196AMLTRT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SC196AMLTRT is usually 5 days.
3.What payment methods are accepted for SC196AMLTRT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SC196AMLTRT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SC196AMLTRT?
SC196AMLTRT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SC196AMLTRT 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 SC196AMLTRT?
For technical support, including SC196AMLTRT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SC196AMLTRT requirements.
6.How does Aetrix verify that SC196AMLTRT is sourced from the original manufacturer or authorized distributors?
All SC196AMLTRT 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 SC196AMLTRT meets industry standards.
7.What is the process for return or replacement of SC196AMLTRT?
All SC196AMLTRT units undergo pre-shipment inspection (PSI). If there is an issue with SC196AMLTRT, 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 SC196AMLTRT part is unused and in its original packaging.
Return procedure for SC196AMLTRT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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