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Semtech Corporation SC190BIMLTRT
- Part No.:
- SC190BIMLTRT
- Manufacturer:
- Semtech Corporation
- Package:
- 10-VFDFN Exposed Pad
- Datasheet:
-
SC190BIMLTRT.pdf
- Description:
- IC REG BUCK PROG 300MA 10MLP
- Quantity:
- Payment:
- Shipping:
Inventory:1,824
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Product details
Overview
SC190BIMLTRT 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 175pF junction capacitance. It protects USB PD, USB Type-C VBus, and load switch inputs in industrial and portable electronics.
For engineers reviewing the SC190BIMLTRT datasheet, pinout, applications, or equivalent options, key selection criteria include clamping stability across temperature and current, low dynamic resistance for consistent voltage limiting, DFN-6 package layout compatibility, and compliance with IEC 61000-4-2/4-4/4-5 surge standards.
Technical Context
The SC190BIMLTRT 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 due to decreasing RDS(on) under surge conditions.
It operates over –40°C to +125°C with stable clamping performance, minimal temperature drift (<±0.5V across full range), and reverse leakage <600nA at 22V. The device is optimized for unsymmetrical line protection and meets ±1kV IEC 61000-4-5 (1.2/50μs voltage, 8/20μs current, RS=42Ω) for industrial surge immunity.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Working Voltage | 22V - defines maximum continuous DC operating voltage on protected line without leakage or degradation |
| Clamping Voltage | 27.5–28V at 40A (8/20μs) - ensures downstream ICs (e.g., USB PD controllers) remain below damage threshold during worst-case surge |
| Peak Pulse Current | 40A (8/20μs) - supports robust industrial surge immunity per IEC 61000-4-5 Level 3/4 |
| ESD Withstand | ±30kV contact & air (IEC 61000-4-2) - eliminates need for secondary ESD stages in high-reliability interfaces |
| Dynamic Resistance | 20mΩ - enables flat clamping curve and minimizes voltage overshoot during fast-rising transients |
| Junction Capacitance | 175pF at 22V, 1MHz - compatible with 20V bus protection without signal integrity impact on moderate-speed lines |
Pinout & Package
SC190BIMLTRT is housed in a Pb-free, RoHS-compliant DFN-6 package measuring 1.6mm × 1.6mm × 0.55mm with UL 94V-0 molding compound. All six terminals are surface-mount; thermal performance relies on PCB copper area and multiple vias to ground plane-not an exposed thermal pad.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 3 | GND | Common ground return for surge current; all three must be connected with low-inductance paths to maximize 40A capability |
| 4, 5, 6 | IN | Protected line input (e.g., VBus); parallel connection of all three pins reduces trace inductance and distributes current evenly |
Key Features
| Feature | Design Value |
|---|---|
| Constant-clamp architecture | Clamping voltage varies ≤0.5V from 24A to 40A and across –40°C to +125°C-enables deterministic system-level surge margin |
| FET-based shunt topology | Replaces PN-junction TVS with active switching; avoids thermal runaway and de-rating at elevated ambient temperatures |
| Low dynamic resistance | 20mΩ measured between 1A–40A (8/20μs) - reduces IR drop and maintains tight clamping under high-current surges |
| High-energy surge rating | 1120W peak pulse power (8/20μs) - sustains repeated lightning-induced transients without parametric shift or failure |
Applications
| USB Type-C Power Delivery Bus Protection | Industrial Load Switch Input Protection |
|---|---|
Use Scenario: Protecting 20V–22V VBus lines in USB-C receptacles against ESD, lightning-induced surges, and hot-plug transients. IC Role / Device Role / Timing Role: Primary EOS shunt suppressor placed adjacent to connector, clamping transients before they reach PD controller or e-fuse. Use Value: Maintains 27.5–28V clamping across temperature and current-prevents false overvoltage shutdown and ensures PD negotiation integrity. |
Use Scenario: Safeguarding input pins of industrial-grade load switches (e.g., HS2950P) subjected to 40A surges in metering, robotics, or remote I/O systems. IC Role / Device Role / Timing Role: Front-end transient diverter that limits voltage stress on internal MOSFET gate oxide and drain-source junction. Use Value: Prevents latch-up or permanent damage to load switch by holding clamping <28V-below typical 30V absolute max ratings. |
| IoT Device Power Rail Protection | Notebook/Tablet Main Power Input Protection |
Use Scenario: Securing 22V-rated auxiliary power rails in battery-powered IoT gateways exposed to field ESD and induced surges. IC Role / Device Role / Timing Role: Single-device solution replacing multi-stage TVS+RC networks-reducing BOM count and board space. Use Value: 175pF capacitance and 600nA leakage enable direct placement on power rails without affecting startup sequencing or standby current. |
Use Scenario: Protecting main DC input (e.g., 20V adapter rail) in ultrabooks and tablets against accidental AC line coupling or connector arcing. IC Role / Device Role / Timing Role: High-reliability front-end clamp ensuring system-level IEC 61000-4-5 compliance without derating at 85°C ambient. Use Value: Stable 28V clamping at 125°C junction temperature prevents brownout or reset during sustained thermal stress. |
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 (T22), same tape-and-reel packaging (3,000/reel) | No functional difference; TDS2211P.C is the official Semtech orderable part number for this device | Select TDS2211P.C when sourcing directly from Semtech or authorized distributors requiring exact manufacturer part nomenclature |
| uClamp2411ZA | 24V working voltage, lower 20A IPP rating, higher 33V clamping at 20A, smaller 0.65mm × 0.65mm DFN-2 package | Targeted for CC/SBU lines in USB-C-not rated for VBus or load switch inputs due to lower energy handling | Use uClamp2411ZA only for low-capacitance, low-energy signal-line protection; not a functional substitute for SC190BIMLTRT's 40A/22V power-line role |
Compared with TDS2211P.C (identical specification) and uClamp2411ZA (lower energy, signal-line focused), SC190BIMLTRT delivers verified 40A/22V power-rail protection with temperature-stable clamping-making it uniquely suitable for USB PD VBus and industrial load switch inputs where energy handling and voltage margin are critical.
Availability
SC190BIMLTRT is available at Aetrix Electronics and suitable for USB Type-C power delivery systems, industrial load switch protection, and IoT device power rail hardening requiring stable component supply, long-term lifecycle support, and guaranteed RoHS/WEEE compliance.
Supply support for SC190BIMLTRT 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.
SC190BIMLTRT belongs to Semtech's Transient Diverting Suppressor (TDS) product line-engineered to replace traditional TVS diodes in high-energy, temperature-critical power-line protection applications.
FAQ
What is the maximum continuous operating voltage for SC190BIMLTRT?
The SC190BIMLTRT has a reverse stand-off voltage (VRWM) of 22V, meaning it can continuously withstand up to 22V DC on its IN pins relative to GND without significant leakage or degradation. This makes SC190BIMLTRT suitable for 20V USB PD VBus and other 22V-rated power rails where reliable long-term operation is required.
Does SC190BIMLTRT meet IEC 61000-4-5 surge immunity standards?
Yes, SC190BIMLTRT is rated for ±1kV (1.2/50μs voltage, 8/20μs current, RS = 42Ω) per IEC 61000-4-5 for unsymmetrical lines and supports 40A (8/20μs) peak pulse current-exceeding Level 4 requirements. Its stable clamping ensures compliance across –40°C to +125°C ambient conditions without derating.
How does SC190BIMLTRT differ from standard TVS diodes in clamping behavior?
Unlike standard TVS diodes whose clamping voltage rises linearly with peak current (VC = VBR + IPP × RDYN), SC190BIMLTRT uses a triggered FET shunt that maintains 27.5–28V clamping from 24A to 40A. This flat response-enabled by decreasing RDS(on) under surge-is confirmed across temperature and eliminates uncertainty in system-level surge margin calculations.
What is the recommended PCB layout for SC190BIMLTRT?
Place SC190BIMLTRT as close as possible to the protected connector. Connect all three IN pins (4, 5, 6) via a single short, wide trace to minimize inductance; tie all three GND pins (1, 2, 3) directly to a solid ground plane using ≥4 thermal vias. Avoid thermal pads-the device dissipates energy internally, and excessive copper can reduce surge impedance mismatching.
Is SC190BIMLTRT compatible with automated SMT assembly processes?
Yes, SC190BIMLTRT uses a standard DFN-6 footprint (1.6mm × 1.6mm) with J-lead–free terminations and complies with IPC/JEDEC J-STD-020 moisture sensitivity level (MSL) 1. It supports reflow profiles up to 260°C peak and is supplied in 7-inch tape-and-reel (3,000 units/reel), fully compatible with high-volume SMT lines.
SC190BIMLTRT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Semtech Corporation
- Series:
- -
- Package/Case:
- 10-VFDFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- 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, 1.2V, 1.5V, 1.8V
- Voltage - Output (Max):
- -
- Current - Output:
- 300mA
- 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)
SC190BIMLTRT FAQ
1.How can I place an order for SC190BIMLTRT through Aetrix?
Please submit a Request for Quotation (RFQ) for SC190BIMLTRT 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 SC190BIMLTRT reliable?
The price and inventory of SC190BIMLTRT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SC190BIMLTRT is usually 5 days.
3.What payment methods are accepted for SC190BIMLTRT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SC190BIMLTRT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SC190BIMLTRT?
SC190BIMLTRT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SC190BIMLTRT 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 SC190BIMLTRT?
For technical support, including SC190BIMLTRT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SC190BIMLTRT requirements.
6.How does Aetrix verify that SC190BIMLTRT is sourced from the original manufacturer or authorized distributors?
All SC190BIMLTRT 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 SC190BIMLTRT meets industry standards.
7.What is the process for return or replacement of SC190BIMLTRT?
All SC190BIMLTRT units undergo pre-shipment inspection (PSI). If there is an issue with SC190BIMLTRT, 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 SC190BIMLTRT part is unused and in its original packaging.
Return procedure for SC190BIMLTRT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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