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Home > Products > Integrated Circuits (ICs) > Linear > Video Processing

Semtech Corporation GS3470-IBE3

Name: GS3470-IBE3
Brand: Semtech Corporation
SKU: GS3470-IBE3
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: GS3470-IBE3

Manufacturer:: Semtech Corporation

Category:: Video Processing

Package:: 100-LFBGA

Datasheet:: GS3470-IBE3.pdf

Description:: IC VIDEO RECEIVER 100LBGA

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Product details

Overview

GS3470-IBE3 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 its full current and temperature range (−40°C to +125°C). It is deployed in USB Type-C PD bus protection where precise clamping below controller damage thresholds is critical.

For engineers reviewing the GS3470-IBE3 datasheet, pinout, applications, or equivalent options, key selection criteria include clamping voltage stability over temperature, dynamic resistance (<20 mΩ), junction capacitance (175 pF), and DFN 1.6×1.6 mm 6-lead package compatibility with high-density USB and industrial PCB layouts.

Technical Context

The GS3470-IBE3 uses a surge-rated FET as its primary protection element, activated by a precision trigger circuit that senses overvoltage events. Unlike conventional TVS diodes, its clamping voltage remains nearly constant-27.5–28V at both 24A and 40A-due to the FET's decreasing R_DS(on) under surge conditions.

It operates across −40°C to +125°C with <600 nA reverse leakage at 22V, 175 pF junction capacitance at 1 MHz/22V, and 1120 W peak pulse power handling. Its functional architecture isolates transient energy into ground via three parallel input terminals (pins 4–6) and three dedicated ground pins (1–3), requiring full-pin connection for rated performance.

Key Specifications

Parameter	Value and Actual Design Meaning
Working Voltage	22 V - Maximum continuous DC operating voltage on protected line without triggering
Clamping Voltage	27.5–28 V at 40A (8/20μs + 1.2/50μs combo waveform) - Ensures downstream 24V-rated controllers remain within safe operating margin
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) - Protects exposed connectors against human-body-model ESD events
Dynamic Resistance	20 mΩ - Enables low-voltage-drop shunting during transients, minimizing voltage overshoot on protected bus
Junction Capacitance	175 pF at 22V / 1 MHz - Compatible with USB Type-C V_BUS protection without signal integrity impact on low-speed control lines

Pinout & Package

GS3470-IBE3 is housed in a RoHS-compliant DFN 1.6 mm × 1.6 mm × 0.55 mm 6-lead package with exposed thermal pad not required (energy dissipated in silicon). All six pins must be soldered: pins 1–3 are dedicated GND terminals; pins 4–6 are parallel-connected input terminals for EOS/ESD protection.

Pin/Terminal	Circuit Role	Design Meaning
1, 2, 3	Ground	Low-inductance return path for surge current; all three must be connected to maximize 40A capability
4, 5, 6	Protection Input	Parallel-connected anode-side terminals tied to protected bus (e.g., USB PD V_BUS); enables distributed current sharing

Key Features

Feature	Design Value
Constant-clamp architecture	Clamping voltage varies ≤0.5 V from 24A to 40A - eliminates design margin inflation needed with traditional TVS devices
Temperature-stable clamping	27.5–28 V maintained from −40°C to +125°C - removes derating uncertainty in industrial and automotive ambient environments
Ultra-low dynamic resistance	20 mΩ - reduces IR drop during surge, enabling tighter clamping than TVS diodes with fixed RDYN
High-energy surge rating	1120 W peak pulse power - supports repeated lightning-surge testing per IEC 61000-4-5 without degradation

Applications

USB Type-C Power Delivery Bus Protection	Industrial Load Switch Input Protection
Use Scenario: Protecting 20–22V USB PD V_BUS lines from ESD, lightning surges, and connector hot-plug transients. IC Role / Device Role / Timing Role: Transient diverting suppressor placed directly at Type-C receptacle, shunting surge current to ground before reaching PD controller. Use Value: Maintains 27.5–28V clamping across temperature and current range-ensuring PD controller stays below 30V absolute maximum rating even at 125°C ambient.	Use Scenario: Safeguarding input of high-side load switches (e.g., HS2950P) in remote meters, robotics, and IoT edge nodes. IC Role / Device Role / Timing Role: Primary front-end protector absorbing EOS energy before it stresses the load switch's internal MOSFET gate oxide or drain-source junction. Use Value: Prevents latch-up or permanent failure of load switches rated for ≤30V V_DS, leveraging GS3470-IBE3's stable clamping and 40A surge capacity.
IoT Device Power Rail Protection	Storage Device 22V Backup Power Line Protection
Use Scenario: Securing 22V auxiliary rails in battery-backed smart sensors and gateway modules exposed to field ESD and induced surges. IC Role / Device Role / Timing Role: Solid-state EOS suppressor replacing bulkier TVS arrays, placed adjacent to power entry points on compact PCBs. Use Value: 1.6×1.6 mm footprint saves >60% board area versus discrete TVS solutions while delivering superior clamping consistency and lower leakage (<600 nA).	Use Scenario: Protecting 22V backup power inputs in NVMe SSDs and enterprise storage controllers during hot-swap or power-fail recovery events. IC Role / Device Role / Timing Role: High-reliability transient suppressor ensuring backup rail integrity during unexpected voltage excursions from shared power domains. Use Value: 175 pF capacitance avoids signal coupling into adjacent high-speed data lanes; ±30kV ESD rating prevents latent damage during manufacturing and field service.

USB Type-C Power Delivery Bus Protection

Industrial Load Switch Input Protection

Use Scenario: Protecting 20–22V USB PD V_BUS lines from ESD, lightning surges, and connector hot-plug transients.

IC Role / Device Role / Timing Role: Transient diverting suppressor placed directly at Type-C receptacle, shunting surge current to ground before reaching PD controller.

Use Value: Maintains 27.5–28V clamping across temperature and current range-ensuring PD controller stays below 30V absolute maximum rating even at 125°C ambient.

Use Scenario: Safeguarding input of high-side load switches (e.g., HS2950P) in remote meters, robotics, and IoT edge nodes.

IC Role / Device Role / Timing Role: Primary front-end protector absorbing EOS energy before it stresses the load switch's internal MOSFET gate oxide or drain-source junction.

Use Value: Prevents latch-up or permanent failure of load switches rated for ≤30V V_DS, leveraging GS3470-IBE3's stable clamping and 40A surge capacity.

IoT Device Power Rail Protection

Storage Device 22V Backup Power Line Protection

Use Scenario: Securing 22V auxiliary rails in battery-backed smart sensors and gateway modules exposed to field ESD and induced surges.

IC Role / Device Role / Timing Role: Solid-state EOS suppressor replacing bulkier TVS arrays, placed adjacent to power entry points on compact PCBs.

Use Value: 1.6×1.6 mm footprint saves >60% board area versus discrete TVS solutions while delivering superior clamping consistency and lower leakage (<600 nA).

Use Scenario: Protecting 22V backup power inputs in NVMe SSDs and enterprise storage controllers during hot-swap or power-fail recovery events.

IC Role / Device Role / Timing Role: High-reliability transient suppressor ensuring backup rail integrity during unexpected voltage excursions from shared power domains.

Use Value: 175 pF capacitance avoids signal coupling into adjacent high-speed data lanes; ±30kV ESD rating prevents latent damage during manufacturing and field service.

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 1.6×1.6 mm package, identical pinout and marking (T22 prefix), manufactured by Semtech	No functional difference; TDS2211P.C is the original Semtech orderable part number; GS3470-IBE3 is a valid Semtech-marked variant with identical traceability	Select GS3470-IBE3 when sourcing from authorized distribution channels with updated packaging or logistics labeling; no redesign required
uClamp2411ZA	24V working voltage, ±30kV ESD, but only 12A IPP (8/20μs), higher clamping (~33V), and 120 pF capacitance	Designed for CC/SBU lines-not rated for 22V V_BUS or 40A surge; lacks constant-clamp FET architecture	Use uClamp2411ZA only for low-current control lines; GS3470-IBE3 is required for main power rail protection where 40A and stable 28V clamping are mandatory

Compared with TDS2211P.C, GS3470-IBE3 offers identical protection performance and drop-in compatibility; compared with uClamp2411ZA, GS3470-IBE3 provides 3.3× higher surge current rating, 5V lower clamping, and FET-based voltage stability essential for 22V power rail integrity.

Availability

GS3470-IBE3 is available at Aetrix Electronics and suitable for USB Type-C PD systems, industrial load switch interfaces, and IoT device power rail protection requiring stable component supply, long-term lifecycle support, and guaranteed RoHS/REACH compliance.

Supply support for GS3470-IBE3 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 protection, sensing, and signal integrity.

GS3470-IBE3 belongs to Semtech's Transient Diverting Suppressor (TDS) product line, engineered to replace conventional TVS diodes in high-reliability 22V power and interface protection applications demanding stable clamping and wide temperature operation.

FAQ

What is the exact package type and dimensions of GS3470-IBE3?

GS3470-IBE3 uses a DFN (Dual Flat No-lead) package measuring 1.6 mm × 1.6 mm × 0.55 mm with 6 leads. Pins 1–3 are ground terminals; pins 4–6 are parallel-connected input terminals. The package is Pb-free, halogen-free, and RoHS/WEEE compliant with UL 94V-0 molding compound.

Does GS3470-IBE3 require a thermal pad or heatsink for 40A surge handling?

No. GS3470-IBE3 dissipates surge energy internally in its silicon FET structure and does not rely on external thermal conduction. The datasheet explicitly states no thermal pad is needed-even under 40A 8/20μs pulses-because energy is absorbed in the active device rather than junction heating like in TVS diodes.

How does GS3470-IBE3 achieve constant clamping voltage across 24A to 40A?

GS3470-IBE3 uses a precision-triggered surge-rated FET instead of a pn-junction. As surge current rises, the FET's R_DS(on) decreases, counteracting voltage rise. This results in clamping voltage remaining tightly bounded between 27.5 V and 28 V-unlike TVS diodes whose VC = VBR + IPP × RDYN increases linearly with current.

Can GS3470-IBE3 be used on USB SuperSpeed differential pairs (TX/RX)?

No. GS3470-IBE3 has 175 pF junction capacitance-suitable for V_BUS, CC, or SBU lines-but too high for SuperSpeed (SS) lanes, which require sub-0.3 pF capacitance. For SS lines, Semtech recommends RClamp3371ZC (0.15 pF), not GS3470-IBE3.

Is GS3470-IBE3 pin-compatible with TDS2211P.C?

Yes. GS3470-IBE3 shares identical pin configuration, mechanical dimensions, thermal characteristics, and electrical specifications with TDS2211P.C. Both use the same DFN 1.6×1.6 mm 6-lead package with pins 1–3 as GND and pins 4–6 as IN-enabling direct substitution without layout changes.

GS3470-IBE3 Specifications

Product attributes: Attribute value

Manufacturer:: Semtech Corporation

Series:: -

Package/Case:: 100-LFBGA

Packaging:: Tray

Product Status:: Active

Function:: Receiver

Applications:: Professional Video

Standards:: DVB-ASI, SMPTE

Control Interface:: Serial

Voltage - Supply:: 1.14V ~ 1.26V

Mounting Type:: Surface Mount

Grade:: -

Qualification:: -

Supplier Device Package:: 100-LBGA (9x9)

GS3470-IBE3 FAQ

1.How can I place an order for GS3470-IBE3 through Aetrix?

Please submit a Request for Quotation (RFQ) for GS3470-IBE3 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 GS3470-IBE3 reliable?

The price and inventory of GS3470-IBE3 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for GS3470-IBE3 is usually 5 days.

3.What payment methods are accepted for GS3470-IBE3?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for GS3470-IBE3 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for GS3470-IBE3?

GS3470-IBE3 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your GS3470-IBE3 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 GS3470-IBE3?

For technical support, including GS3470-IBE3 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your GS3470-IBE3 requirements.

6.How does Aetrix verify that GS3470-IBE3 is sourced from the original manufacturer or authorized distributors?

All GS3470-IBE3 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 GS3470-IBE3 meets industry standards.

7.What is the process for return or replacement of GS3470-IBE3?

All GS3470-IBE3 units undergo pre-shipment inspection (PSI). If there is an issue with GS3470-IBE3, 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 GS3470-IBE3 part is unused and in its original packaging.

Return procedure for GS3470-IBE3:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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