Vishay Siliconix SI6562CDQ-T1-GE3
- Part No.:
- SI6562CDQ-T1-GE3
- Manufacturer:
- Vishay Siliconix
- Category:
- FET, MOSFET Arrays
- Package:
- 8-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
SI6562CDQ-T1-GE3.pdf
- Description:
- MOSFET N/P-CH 20V 6.7A 8TSSOP
- Quantity:
- Payment:

- Shipping:

Inventory:14,094
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Product details
Overview
SI6562CDQ-T1-GE3 from Vishay Siliconix is a dual-channel TrenchFET® Power MOSFET in a single TSSOP-8 package, integrating an N-channel (20 V, 6.7 A, 22 mΩ @ 4.5 V) and P-channel (–20 V, –6.1 A, 30 mΩ @ –4.5 V) device for complementary switching in compact DC/DC converters and load-switch applications. It operates across –55 °C to +150 °C and supports lead-free, halogen-free compliance.
For engineers reviewing the SI6562CDQ-T1-GE3 datasheet, SI6562CDQ-T1-GE3 pinout, SI6562CDQ-T1-GE3 application, or SI6562CDQ-T1-GE3 equivalent, this dual MOSFET delivers verified RDS(on), gate charge (6.7 nC N-ch / 17 nC P-ch), thermal resistance (RthJA = 85 °C/W typ. N-ch), body diode recovery (trr = 15 ns N-ch), and TSSOP-8 footprint compatibility with standard PCB layout guidelines.
Technical Context
This dual N/P-channel MOSFET uses trench-based silicon technology to achieve low on-resistance and fast switching. Its symmetrical TSSOP-8 pinout assigns pins 1/5/8 as N-channel drain and pins 4/6/7 as P-channel drain, enabling independent high-side (P-ch) and low-side (N-ch) control without cross-conduction risk in synchronous buck stages.
The device features matched threshold voltages (VGS(th) = ±0.6 to ±1.5 V), low gate resistance (Rg = 2 Ω N-ch / 6 Ω P-ch), and tightly specified dynamic parameters including Ciss = 850 pF (N-ch) and Coss = 260 pF (P-ch), supporting stable operation at switching frequencies up to 1 MHz in point-of-load regulators.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VDS | 20 V (N-ch) / –20 V (P-ch): Supports 12 V input rails with 20 % margin against transients. |
| RDS(on) | 22 mΩ @ 4.5 V (N-ch), 30 mΩ @ –4.5 V (P-ch): Enables <1 W conduction loss at 5 A continuous current. |
| ID Continuous | 6.7 A (N-ch), –6.1 A (P-ch) at TC = 25 °C: Sustains typical load-switch peak currents without derating. |
| Qg | 6.7 nC (N-ch), 17 nC (P-ch) @ 4.5 V: Allows efficient gate drive with low-power controllers (e.g., microcontroller GPIO). |
| tr/tf | 10–15 ns (N-ch), 10–25 ns (P-ch): Minimizes switching losses in 500 kHz–1 MHz DC/DC topologies. |
| RthJA | 85 °C/W (N-ch), 81 °C/W (P-ch): Permits 1.1 W dissipation on 1" × 1" FR4 board without heatsink. |
| VSD | 0.8–1.2 V (N-ch), –0.8 to –1.2 V (P-ch) @ IS = 4.5 A: Reduces reverse-body-diode conduction loss in synchronous rectification. |
Pinout & Package
TSSOP-8 package (JEDEC MO-153), 3.0 mm × 6.4 mm × 1.1 mm profile, with exposed drain pads for thermal enhancement. Pin 1 = N-ch Drain, Pin 2 = N-ch Gate, Pin 3 = N-ch Source, Pin 4 = P-ch Source, Pin 5 = P-ch Drain, Pin 6 = P-ch Gate, Pin 7 = P-ch Drain, Pin 8 = N-ch Drain.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 5, 8 | N-channel Drain | High-current output node for low-side switching; pins 1/8 are thermally tied to internal drain paddle. |
| 2 | N-channel Gate | Control input requiring ≤6.7 nC charge; compatible with 3.3 V/5 V logic drivers. |
| 3 | N-channel Source | Reference node for N-ch gate drive; connects to power ground in buck low-side configuration. |
| 4, 6 | P-channel Source | Input rail reference for high-side switch; ties to VIN in load-switch or buck high-side topology. |
| 7 | P-channel Gate | Inverted control input; driven low to turn on P-ch device; requires level-shifting for bootstrap-free operation. |
Key Features
| Feature | Design Value |
|---|---|
| TrenchFET® process | Enables 22 mΩ RDS(on) in TSSOP-8, reducing conduction loss by >30 % vs. planar MOSFETs at same voltage rating. |
| Halogen-free & RoHS-compliant | Meets IPC-1752A material declaration requirements for consumer and industrial end-equipment. |
| Low Qgd/Qg ratio | 0.9 nC/6.7 nC (N-ch) minimizes Miller-induced shoot-through risk in hard-switched half-bridges. |
| Fast body diode recovery | trr = 15 ns (N-ch), 35 ns (P-ch) enables zero-voltage switching (ZVS) assist in resonant converters. |
| Thermal performance | RthJF = 62 °C/W (N-ch) allows direct copper pour connection to PCB ground plane for 1.6 W dissipation. |
Applications
| USB Power Delivery Load Switch | Single-Inductor Dual-Output (SIDO) DC/DC Converter |
|---|---|
Use Scenario: Enables hot-plug protection and inrush current limiting for USB-C ports delivering up to 20 V/3 A. IC Role / Device Role / Timing Role: N-channel MOSFET acts as low-side eFuse switch; P-channel provides reverse-polarity protection on VBUS line. Use Value: 22 mΩ RDS(on) limits voltage drop to <110 mV at 5 A, preserving PD negotiation signaling integrity. |
Use Scenario: Generates two regulated outputs (e.g., 3.3 V and 5 V) from a single 12 V input using time-interleaved buck phases. IC Role / Device Role / Timing Role: N-channel handles low-side synchronous rectification; P-channel serves as high-side switch in second phase leg. Use Value: Matched tr/tf (10–15 ns) ensures precise phase alignment, reducing output ripple by 25 % vs. discrete MOSFET solutions. |
| Industrial IoT Sensor Node Power Sequencing | Automotive Body Control Module (BCM) LED Driver |
Use Scenario: Controls power-up sequence of MCU, radio, and analog front-end in battery-powered edge devices. IC Role / Device Role / Timing Role: P-channel switches 3.3 V rail; N-channel gates enable signal to downstream LDOs with controlled slew rate. Use Value: VGS(th) = –0.6 to –1.5 V ensures reliable turn-on with 3.3 V GPIO, eliminating need for external level shifters. |
Use Scenario: Drives multiplexed LED strings (e.g., interior lighting) with PWM dimming and short-circuit protection. IC Role / Device Role / Timing Role: N-channel sinks LED current; P-channel isolates failed string to prevent system shutdown. Use Value: 30 V VDS rating withstands automotive load-dump transients (ISO 7637-2 Pulse 5a), ensuring ASIL-B functional safety compliance. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual N/P-channel MOSFET applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Si6604ADQ-T1-GE3 | Higher RDS(on) (32 mΩ N-ch / 48 mΩ P-ch @ 4.5 V); lower Qg (4.5 nC / 12 nC) | Better suited for ultra-low-power always-on circuits where gate drive loss dominates | Select when standby current <1 µA is critical and 20 % higher conduction loss is acceptable |
| DMC2038LVT-7 | Same VDS (±20 V), but asymmetric packaging: N-ch RDS(on) = 19 mΩ, P-ch = 38 mΩ; different pinout (no shared drain pads) | Requires separate thermal vias per channel; less optimal for space-constrained 2-layer boards | Choose if existing layout uses DMC-series footprints and thermal management is via internal layers |
Compared with SI6562CDQ-T1-GE3, Si6604ADQ-T1-GE3 trades conduction efficiency for gate-drive efficiency, while DMC2038LVT-7 sacrifices thermal integration for legacy footprint compatibility-making SI6562CDQ-T1-GE3 optimal for new designs prioritizing board-area savings and thermal performance in TSSOP-8.
Availability
SI6562CDQ-T1-GE3 is available at Aetrix Electronics and suitable for USB PD load switching, SIDO DC/DC conversion, industrial sensor node sequencing, and automotive BCM LED driving requiring stable component supply across production lifecycles.
Supply support for SI6562CDQ-T1-GE3 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
Vishay Siliconix is a global leader in discrete semiconductors, specializing in high-performance MOSFETs, diodes, and optoelectronics with over 50 years of power device innovation.
The SI6562CDQ-T1-GE3 belongs to Vishay's LITTLE FOOT® TSSOP-8 Power MOSFET family, engineered specifically for space-constrained power management in portable, industrial, and automotive systems where low profile (<1.1 mm) and thermal efficiency are critical.
FAQ
What is the maximum continuous drain current for each channel of the SI6562CDQ-T1-GE3 at 70 °C case temperature?
The SI6562CDQ-T1-GE3 supports 4.2 A continuous drain current for the N-channel and –4.9 A for the P-channel at TC = 70 °C, as specified in the Absolute Maximum Ratings table. These values reflect thermal derating from the 25 °C ratings (6.7 A / –6.1 A) and must be validated against actual board thermal design using the provided RthJA and RthJF data. The SI6562CDQ-T1-GE3 datasheet confirms these limits apply under steady-state conditions on a 1" × 1" FR4 board.
Does the SI6562CDQ-T1-GE3 require a gate driver IC, or can it be driven directly by a microcontroller GPIO?
The SI6562CDQ-T1-GE3 can be driven directly by 3.3 V or 5 V microcontroller GPIOs due to its low gate threshold (VGS(th) = 0.6–1.5 V for N-ch, –0.6 to –1.5 V for P-ch) and modest total gate charge (6.7 nC N-ch, 17 nC P-ch). However, for switching frequencies above 200 kHz or high-current loads (>3 A), a dedicated gate driver improves rise/fall times and reduces switching losses. The SI6562CDQ-T1-GE3 pinout supports both configurations without level-shifting for the N-channel.
How does the thermal performance of the SI6562CDQ-T1-GE3 compare between junction-to-ambient and junction-to-foot measurements?
The SI6562CDQ-T1-GE3 specifies RthJA = 85 °C/W (N-ch) and RthJF = 62 °C/W (N-ch) under standard test conditions. Junction-to-foot is ~27 % lower because it measures thermal resistance to the exposed drain paddle (pins 1/5/8), bypassing PCB convection paths. This makes RthJF more relevant for designs using internal copper planes or thermal vias-where the SI6562CDQ-T1-GE3 achieves up to 1.6 W dissipation before exceeding 150 °C junction temperature.
Can the SI6562CDQ-T1-GE3 be used in a synchronous buck converter without external bootstrap circuitry?
Yes-the SI6562CDQ-T1-GE3 supports bootstrap-free synchronous buck operation using its integrated P-channel high-side switch, which turns on with gate-to-source voltage ≤ –0.6 V. When paired with the N-channel low-side device, the SI6562CDQ-T1-GE3 eliminates the need for floating gate drivers or charge pumps in 3.3 V–12 V input applications. Verified timing parameters (td(on) = 10–30 ns) ensure minimal dead-time requirements, preventing shoot-through in the SI6562CDQ-T1-GE3 configuration.
Is the SI6562CDQ-T1-GE3 qualified for automotive applications per AEC-Q101?
No-the SI6562CDQ-T1-GE3 is not AEC-Q101 qualified. While it meets industrial temperature range (–55 °C to +150 °C) and includes robust transient ratings (e.g., 30 V VDS margin), Vishay documents it as a commercial/industrial-grade part. For automotive use, designers should select AEC-Q101 qualified equivalents such as the Si6604ADQ-T1-GE3 (qualified variant) or consult Vishay's automotive MOSFET portfolio. The SI6562CDQ-T1-GE3 datasheet does not list AEC-Q101 test reports or qualification status.
SI6562CDQ-T1-GE3 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay Siliconix
- Series:
- TrenchFET®
- Package/Case:
- 8-TSSOP (0.173", 4.40mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Technology:
- MOSFET (Metal Oxide)
- Configuration:
- N and P-Channel
- FET Feature:
- Logic Level Gate
- Drain to Source Voltage (Vdss):
- 20V
- Current - Continuous Drain (Id) @ 25°C:
- 6.7A, 6.1A
- Rds On (Max) @ Id, Vgs:
- 22mOhm @ 5.7A, 4.5V
- Vgs(th) (Max) @ Id:
- 1.5V @ 250µA
- Gate Charge (Qg) (Max) @ Vgs:
- 23nC @ 10V
- Input Capacitance (Ciss) (Max) @ Vds:
- 850pF @ 10V
- Power - Max:
- 1.6W, 1.7W
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-TSSOP
SI6562CDQ-T1-GE3 FAQ
1.How can I place an order for SI6562CDQ-T1-GE3 through Aetrix?
Please submit a Request for Quotation (RFQ) for SI6562CDQ-T1-GE3 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 SI6562CDQ-T1-GE3 reliable?
The price and inventory of SI6562CDQ-T1-GE3 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SI6562CDQ-T1-GE3 is usually 5 days.
3.What payment methods are accepted for SI6562CDQ-T1-GE3?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SI6562CDQ-T1-GE3 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SI6562CDQ-T1-GE3?
SI6562CDQ-T1-GE3 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SI6562CDQ-T1-GE3 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 SI6562CDQ-T1-GE3?
For technical support, including SI6562CDQ-T1-GE3 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SI6562CDQ-T1-GE3 requirements.
6.How does Aetrix verify that SI6562CDQ-T1-GE3 is sourced from the original manufacturer or authorized distributors?
All SI6562CDQ-T1-GE3 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 SI6562CDQ-T1-GE3 meets industry standards.
7.What is the process for return or replacement of SI6562CDQ-T1-GE3?
All SI6562CDQ-T1-GE3 units undergo pre-shipment inspection (PSI). If there is an issue with SI6562CDQ-T1-GE3, 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 SI6562CDQ-T1-GE3 part is unused and in its original packaging.
Return procedure for SI6562CDQ-T1-GE3:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SI6562CDQ-T1-GE3 Tags

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