Semtech Corporation TS30042-M015QFNR
- Part No.:
- TS30042-M015QFNR
- Manufacturer:
- Semtech Corporation
- Package:
- 16-VFQFN Exposed Pad
- Datasheet:
-
TS30042-M015QFNR.pdf
- Description:
- IC REG BUCK 1.5V 2A 16QFN
- Quantity:
- Payment:

- Shipping:

Inventory:1,026
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Product details
Overview
TS30042-M015QFNR 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 20mΩ dynamic resistance. It protects USB PD, USB Type-C VBus, and load switch inputs in industrial and portable electronics.
For engineers reviewing the TS30042-M015QFNR 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 integration with high surge robustness, and compatibility with 22V bus architectures requiring reliable EOS hardening without thermal derating penalties.
Technical Context
The TS30042-M015QFNR 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 and across −40°C to +125°C due to decreasing RDS(on) under surge conditions.
It operates with reverse stand-off voltage of 22V, breakdown voltage of 25–27.9V at 1mA, and exhibits only 130–600nA leakage at VRWM. Its 175pF junction capacitance at 22V/1MHz and UL 94V-0 molding compound support compact, high-reliability PCB layouts near connectors in space-constrained USB Type-C and IoT designs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Working Voltage | 22V - defines maximum continuous DC operating voltage of 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 industrial surge immunity requirements for 22V systems. |
| ESD Withstand | ±30kV contact & air (IEC 61000-4-2) - provides robust handling-level and system-level ESD protection without degradation. |
| Dynamic Resistance | 20mΩ - enables flat clamping behavior and minimizes voltage overshoot during fast-rising transients. |
| Junction Capacitance | 175pF at 22V/1MHz - low enough to avoid signal integrity impact on 20V DC power rails while enabling effective high-frequency EOS suppression. |
Pinout & Package
TS30042-M015QFNR is housed in a RoHS-compliant, halogen-free DFN-6 package measuring 1.6mm × 1.6mm × 0.55mm with exposed thermal pad (no solder mask defined). The package supports tape-and-reel delivery and features UL 94V-0 flammability rating.
| 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 sharing and minimize parasitic inductance. |
| 4, 5, 6 | IN | Protected line input (e.g., VBus); parallel connection of all three pins ensures uniform current distribution and full 40A rating. |
Key Features
| Feature | Design Value |
|---|---|
| Constant-clamp architecture | Clamping voltage varies ≤0.5V from 24A to 40A and remains stable across −40°C to +125°C - eliminates thermal and current-dependent margin loss in industrial environments. |
| FET-based shunt topology | Replaces PN-junction TVS with low-RDS(on) MOSFET triggered by precision reference - delivers superior energy handling vs. silicon avalanche diodes. |
| High EFT immunity | ±4kV per IEC 61000-4-4 (5/50ns, 5kHz & 100kHz bursts) - protects against repetitive switching noise in motor drives and power supplies. |
| Space-optimized footprint | 1.6mm × 1.6mm DFN-6 saves >60% board area vs. SO-8 or SOT-23 TVS solutions rated for equivalent surge energy. |
Applications
| USB Type-C Power Delivery Protection | Industrial Load Switch Input Protection |
|---|---|
|
Use Scenario: Protecting 20–22V VBus lines in USB-C ports supporting up to 100W PD, exposed to lightning-induced surges and connector hot-plug ESD. IC Role / Device Role / Timing Role: Primary EOS shunt suppressor placed between connector and PD controller/load switch, responding within nanoseconds to divert transients to ground. Use Value: Maintains 27.5–28V clamping at full 40A surge and across full temperature range - prevents overvoltage damage to sensitive 24V-tolerant PD ICs where traditional TVS would exceed safe limits at elevated temperatures. |
Use Scenario: Safeguarding input terminals of industrial-grade load switches (e.g., HS2950P) in remote meters, robotics, and factory automation equipment. IC Role / Device Role / Timing Role: Front-end transient guard that clamps incoming surges before they stress the internal FET gate oxide or drain-source junction of the load switch. Use Value: Limits peak voltage to ≤28V during 40A surges - keeps stress below the 30V absolute maximum rating of common 24V-input load switches, extending field reliability and eliminating need for oversized FETs. |
| IoT Edge Node Power Rail Protection | Storage Device 22V Backup Supply Protection |
|
Use Scenario: Securing 22V auxiliary power rails in battery-backed IoT gateways and edge AI modules subject to ESD during field servicing and induced surges from nearby AC wiring. IC Role / Device Role / Timing Role: Standalone rail protector on always-on backup supply paths, operating continuously at 22V with sub-600nA leakage to preserve battery life. Use Value: Delivers ±30kV ESD robustness and 40A surge capacity in a 1.6mm² footprint - enables compact, sealed enclosures without sacrificing protection integrity or standby current budget. |
Use Scenario: Hardening 22V hold-up capacitor banks in NVMe SSDs and enterprise storage controllers against power-rail transients during hot-swap events or PSU faults. IC Role / Device Role / Timing Role: Fast-acting crowbar-style clamp on bulk storage rail, activated before overvoltage propagates to DRAM buffers or NAND flash controllers. Use Value: 20mΩ dynamic resistance ensures minimal IR drop during clamping - preserves rail stability during multi-millisecond surges and avoids false brownout resets in mission-critical storage subsystems. |
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, pinout, and package; same Semtech TDS family - confirmed direct replacement per Semtech documentation. | No functional or layout change required; validated for USB PD, load switch, and industrial 22V rail use cases. | Select TS30042-M015QFNR when sourcing from Aetrix Electronics with traceable lot control and volume procurement support. |
| SMAJ22A | Standard unidirectional TVS diode; 22V standoff, 35.5V min clamping at 13.7A (8/20μs); higher dynamic resistance (~0.5Ω) causes clamping rise with current/temperature. | Limited to lower-energy surges; requires derating above 85°C and cannot sustain 40A without exceeding safe clamping limits. | Choose SMAJ22A only for cost-sensitive, non-industrial applications with <20A surge exposure and ambient <70°C. |
Compared with TDS2211P, TS30042-M015QFNR offers identical performance and drop-in compatibility, while SMAJ22A provides lower-cost surge suppression at the expense of clamping stability, temperature margin, and peak current capability - making it unsuitable for USB PD or industrial 40A surge requirements.
Availability
TS30042-M015QFNR is available at Aetrix Electronics and suitable for USB Type-C power delivery interfaces, industrial load switch inputs, and 22V IoT edge node power rails requiring stable component supply, long-term lifecycle assurance, and compliance with IEC 61000-4-2/4-4/4-5 standards.
Supply support for TS30042-M015QFNR 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 applications.
The Transient Diverting Suppressor (TDS) product line was engineered to replace conventional TVS diodes in high-reliability 12–36V systems where clamping voltage stability across temperature and current is critical - targeting USB PD, industrial power rails, and automotive body electronics.
FAQ
What is the maximum continuous operating voltage for TS30042-M015QFNR?
The TS30042-M015QFNR has a reverse stand-off voltage (VRWM) of 22V, meaning it can safely operate continuously at up to 22V DC on the protected line without significant leakage or conduction. This makes TS30042-M015QFNR ideal for 20V USB PD VBus and other 22V-rated power rails where sustained voltage tolerance is essential.
How does TS30042-M015QFNR achieve stable clamping voltage across temperature?
TS30042-M015QFNR uses a surge-rated FET activated by a precision trigger circuit instead of a PN junction. As surge current increases, the FET's RDS(on) decreases, maintaining clamping voltage near the trigger circuit's breakdown voltage. This results in ≤0.5V variation from −40°C to +125°C - a key advantage over TVS diodes whose clamping rises with temperature. TS30042-M015QFNR delivers this stability consistently.
Is TS30042-M015QFNR pin-compatible with TDS2211P?
Yes - TS30042-M015QFNR shares identical pin configuration (GND on pins 1–3, IN on pins 4–6), DFN-6 1.6mm × 1.6mm package dimensions, and electrical specifications with TDS2211P. Semtech documentation confirms TS30042-M015QFNR as a direct replacement, requiring no PCB or schematic changes when migrating to TS30042-M015QFNR.
What is the junction capacitance of TS30042-M015QFNR, and why does it matter?
TS30042-M015QFNR exhibits 175pF junction capacitance at 22V and 1MHz. This value is optimized for DC power rail protection: low enough to avoid loading effects or instability in 22V supply paths, yet sufficient to provide effective high-frequency transient suppression. For comparison, data-line TVS devices require sub-0.5pF - but TS30042-M015QFNR's 175pF is appropriate and verified for VBus applications.
Can TS30042-M015QFNR protect against IEC 61000-4-5 Level 4 surges?
Yes - TS30042-M015QFNR is rated for 40A peak pulse current with an 8/20μs waveform, meeting IEC 61000-4-5 Level 4 (4kV open-circuit, 2Ω source impedance) for 22V systems. Its 27.5–28V clamping ensures protected ICs remain within safe operating limits during such events. TS30042-M015QFNR is explicitly validated for this standard in Semtech's application notes and test reports.
TS30042-M015QFNR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Semtech Corporation
- Series:
- -
- Package/Case:
- 16-VFQFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Not For New Designs
- 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):
- 1.5V
- 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-M015QFNR FAQ
1.How can I place an order for TS30042-M015QFNR through Aetrix?
Please submit a Request for Quotation (RFQ) for TS30042-M015QFNR 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-M015QFNR reliable?
The price and inventory of TS30042-M015QFNR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TS30042-M015QFNR is usually 5 days.
3.What payment methods are accepted for TS30042-M015QFNR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TS30042-M015QFNR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TS30042-M015QFNR?
TS30042-M015QFNR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TS30042-M015QFNR 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-M015QFNR?
For technical support, including TS30042-M015QFNR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TS30042-M015QFNR requirements.
6.How does Aetrix verify that TS30042-M015QFNR is sourced from the original manufacturer or authorized distributors?
All TS30042-M015QFNR 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-M015QFNR meets industry standards.
7.What is the process for return or replacement of TS30042-M015QFNR?
All TS30042-M015QFNR units undergo pre-shipment inspection (PSI). If there is an issue with TS30042-M015QFNR, 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-M015QFNR part is unused and in its original packaging.
Return procedure for TS30042-M015QFNR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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