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Semtech Corporation TS30042-M033QFNR
- Part No.:
- TS30042-M033QFNR
- Manufacturer:
- Semtech Corporation
- Package:
- 16-VFQFN Exposed Pad
- Datasheet:
-
TS30042-M033QFNR.pdf
- Description:
- IC REG BUCK 3.3V 2A 16QFN
- Quantity:
- Payment:
- Shipping:
Inventory:11,387
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Product details
Overview
TS30042-M033QFNR from Semtech is a Transient Diverting Suppressor (TDS) designed for high-energy EOS protection of 22V-rated power or I/O lines. It delivers ±30kV IEC 61000-4-2 ESD immunity, 40A peak pulse current (8/20μs), and a stable 27.5–28V clamping voltage across temperature and current range - enabling robust USB PD and Type-C bus protection in industrial and portable systems.
For engineers reviewing the TS30042-M033QFNR datasheet, pinout, applications, or equivalent options, key selection criteria include clamping stability under 40A surge, DFN-6 thermal and layout performance, 175pF junction capacitance at 22V, and compatibility with load switch input protection architectures requiring sub-28V clamping at 125°C.
Technical Context
The TS30042-M033QFNR 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 - independent of peak pulse current (24A to 40A) and operating temperature (−40°C to +125°C) - due to the FET's ultra-low dynamic resistance (20mΩ).
This architecture enables reliable protection of voltage-sensitive interfaces such as USB PD controllers and load switches, where traditional TVS devices exhibit rising clamping voltage with increasing IPP or temperature. The device is rated for 1120W peak pulse power and meets IEC 61000-4-4 (±4kV EFT) and IEC 61000-4-5 (±1kV unsymmetrical surge) standards.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Working Voltage | 22V - defines maximum continuous DC bus voltage it can protect without leakage or degradation |
| Clamping Voltage | 27.5–28V at 40A (8/20μs + 1.2/50μs combo wave, RS = 2Ω) - ensures protected ICs remain below damage threshold during worst-case surge |
| Peak Pulse Current | 40A (tp = 8/20μs) - supports industrial-level surge immunity per IEC 61000-4-5 |
| ESD Withstand | ±30kV contact & air (IEC 61000-4-2) - eliminates need for secondary ESD stages in USB Type-C and IoT ports |
| Junction Capacitance | 175pF at VR = 22V, f = 1MHz - low enough for 22V power rail protection without signal integrity impact |
| Dynamic Resistance | 20mΩ (measured 1A–40A, tp = 8/20μs) - enables flat clamping curve and minimal IR drop under surge |
Pinout & Package
TS30042-M033QFNR is housed in a RoHS-compliant DFN-6 package measuring 1.6mm × 1.6mm × 0.55mm with exposed thermal pad (no solder mask defined). All six terminals are required for full surge rating: three parallel GND pins minimize inductance, and three parallel IN pins maximize current sharing.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 3 | GND | Common ground return path for surge current; all three must be connected to low-inductance ground plane via multiple vias |
| 4, 5, 6 | IN | Protected line input (e.g., VBUS, load switch input); parallel connection ensures equal current distribution and full 40A rating |
Key Features
| Feature | Design Value |
|---|---|
| Constant-clamp architecture | Clamping voltage varies ≤0.5V across 24A–40A and −40°C to +125°C - eliminates derating uncertainty in thermal design |
| Surge-rated FET protection | Replaces fragile pn-junction TVS with low-Rds(on) shunt switch - dissipates energy in channel, not junction, improving reliability |
| Low dynamic resistance | 20mΩ enables <1V IR drop at 40A - maintains tight clamping margin even under worst-case surge conditions |
| High-energy rating | 1120W peak pulse power (8/20μs) - exceeds common industrial surge requirements including ±1kV (RS = 42Ω) |
Applications
| USB Type-C Power Delivery Bus Protection | Industrial Load Switch Input Protection |
|---|---|
|
Use Scenario: Protecting 20V–22V USB PD power bus against lightning-induced surges and connector ESD events in portable docking stations. IC Role / Device Role / Timing Role: Primary EOS suppressor placed directly at Type-C receptacle, clamping transients before they reach PD controller and buck-boost ICs. Use Value: Maintains 27.5–28V clamping at 125°C - avoids overvoltage damage to 30V-rated PD controllers where standard TVS would exceed 35V at same condition. |
Use Scenario: Safeguarding enable and input pins of high-side load switches (e.g., HS2950P) in remote meters and robotics against field-induced surges. IC Role / Device Role / Timing Role: Front-end transient shunt that limits voltage stress on internal MOSFET gate oxide and overvoltage protection circuitry. Use Value: Prevents latch-up or permanent failure of load switch ICs by holding clamping voltage below 28V - well under typical 30V absolute max ratings. |
| IoT Edge Node Power Rail Protection | Storage Device 22V Backup Supply Protection |
|
Use Scenario: Securing 22V auxiliary rails in battery-backed IoT gateways exposed to ESD during field servicing or lightning-coupled surges. IC Role / Device Role / Timing Role: Single-device solution for both fast ESD (ns rise time) and slower surge (μs rise time) on shared power input. Use Value: Eliminates need for cascaded TVS + MOV solutions - reduces BOM count and PCB area while guaranteeing consistent clamping across environmental extremes. |
Use Scenario: Protecting 22V supercapacitor or LiFePO₄ backup supply inputs in enterprise SSDs and NAS enclosures against hot-plug transients and ESD. IC Role / Device Role / Timing Role: High-reliability clamp on backup power entry point, ensuring data retention circuitry remains powered and undamaged. Use Value: 175pF capacitance avoids loading effects on low-noise LDOs downstream; ±30kV ESD rating prevents latent failures during automated assembly. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TDS2211P | Identical electrical specs, same DFN-6 package, identical marking code T22 - confirmed as direct form-fit-function replacement per Semtech documentation | No functional difference; used interchangeably in USB PD reference designs and load switch protection schematics | Select TS30042-M033QFNR when sourcing from Aetrix Electronics' certified Semtech channel with traceable lot history |
| uClamp2411ZA | 24V working voltage, lower 24A IPP rating, higher 30V clamping, smaller 0.65pF capacitance - optimized for CC/SBU lines, not power rails | Designed for low-capacitance data-line protection; insufficient for 22V bus clamping due to higher VC and lower surge rating | Use only for auxiliary signal lines (CC, SBU); not suitable as direct alternative for TS30042-M033QFNR's power-rail role |
Compared with TDS2211P, TS30042-M033QFNR offers identical protection performance and layout compatibility, making it a fully interchangeable option; uClamp2411ZA serves a different application tier - signal-line protection - and cannot replace TS30042-M033QFNR in 22V power rail roles due to lower surge rating and higher clamping voltage.
Availability
TS30042-M033QFNR 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 guaranteed RoHS/WEEE compliance.
Supply support for TS30042-M033QFNR 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.
TS30042-M033QFNR belongs to Semtech's Transient Diverting Suppressor (TDS) product line - engineered to replace conventional TVS diodes in high-reliability power rail protection where stable clamping across temperature and current is critical.
FAQ
What is the maximum continuous operating voltage for TS30042-M033QFNR?
The TS30042-M033QFNR has a reverse stand-off voltage (VRWM) of 22V, meaning it is rated for continuous operation up to 22V DC on the protected line. Exceeding this voltage risks increased leakage current and potential degradation. This rating aligns with USB PD 3.0 specifications and industrial 24V nominal systems operating at reduced voltage margins.
Does TS30042-M033QFNR require a thermal pad or heatsink on the PCB?
No, TS30042-M033QFNR does not require an external thermal pad or heatsink. Its surge energy is dissipated through the FET channel rather than the junction, and the DFN-6 package relies on low-inductance GND connections (pins 1–3) for effective heat spreading. Layout guidelines emphasize multiple vias to inner ground planes - not thermal relief - to handle transient current.
Can TS30042-M033QFNR be used on high-speed data lines like USB SS or PCIe?
No, TS30042-M033QFNR is not suitable for high-speed data lines. With 175pF junction capacitance at 22V, it would severely degrade signal integrity on superspeed lanes. It is specifically intended for power rails and low-bandwidth control lines. For USB SS or DP/DM lines, Semtech recommends RClamp3371ZC (0.25pF) instead.
How does TS30042-M033QFNR 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), TS30042-M033QFNR maintains a near-constant 27.5–28V clamping voltage from 24A to 40A and across −40°C to +125°C. This results from its FET-based shunt architecture and 20mΩ dynamic resistance - eliminating thermal derating uncertainty in system design.
Is TS30042-M033QFNR compatible with lead-free reflow profiles?
Yes, TS30042-M033QFNR is qualified for standard lead-free reflow processes (J-STD-020, peak temperature up to 260°C). Its DFN-6 package uses lead-free terminal finish and UL 94V-0 molding compound, meeting IPC/JEDEC J-STD-020D.2 requirements for moisture sensitivity level (MSL) 1 - unlimited floor life at ≤30°C/60% RH.
TS30042-M033QFNR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Semtech Corporation
- Series:
- -
- Package/Case:
- 16-VFQFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Function:
- Step-Down
- Output Configuration:
- Positive
- Topology:
- Buck
- Output Type:
- Fixed
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 4.5V
- Voltage - Input (Max):
- 40V
- Voltage - Output (Min/Fixed):
- 3.3V
- Voltage - Output (Max):
- -
- Current - Output:
- 2A
- Frequency - Switching:
- 1MHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-QFN (3x3)
TS30042-M033QFNR FAQ
1.How can I place an order for TS30042-M033QFNR through Aetrix?
Please submit a Request for Quotation (RFQ) for TS30042-M033QFNR 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 TS30042-M033QFNR reliable?
The price and inventory of TS30042-M033QFNR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TS30042-M033QFNR is usually 5 days.
3.What payment methods are accepted for TS30042-M033QFNR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TS30042-M033QFNR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TS30042-M033QFNR?
TS30042-M033QFNR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TS30042-M033QFNR 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 TS30042-M033QFNR?
For technical support, including TS30042-M033QFNR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TS30042-M033QFNR requirements.
6.How does Aetrix verify that TS30042-M033QFNR is sourced from the original manufacturer or authorized distributors?
All TS30042-M033QFNR 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 TS30042-M033QFNR meets industry standards.
7.What is the process for return or replacement of TS30042-M033QFNR?
All TS30042-M033QFNR units undergo pre-shipment inspection (PSI). If there is an issue with TS30042-M033QFNR, 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 TS30042-M033QFNR part is unused and in its original packaging.
Return procedure for TS30042-M033QFNR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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