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Vishay Siliconix SIC463ED-T1-GE3
- Part No.:
- SIC463ED-T1-GE3
- Manufacturer:
- Vishay Siliconix
- Package:
- PowerPAK® MLP55-27
- Datasheet:
-
SIC463ED-T1-GE3.pdf
- Description:
- IC REG BCK ADJ POWERPAK MLP55-27
- Quantity:
- Payment:
- Shipping:
Inventory:5,961
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Product details
Overview
SIC463ED-T1-GE3 from Vishay Siliconix is a 4 A, wide-input (4.5 V to 60 V) synchronous buck DC/DC converter with integrated high-side and low-side MOSFETs, adjustable 0.8 V output, and 2 MHz max switching frequency-designed for industrial computing, telecom power supplies, and robotics where compact, high-efficiency regulation is critical.
For engineers reviewing the SIC463ED-T1-GE3 datasheet, SIC463ED-T1-GE3 pinout, SIC463ED-T1-GE3 application, or SIC463ED-T1-GE3 equivalent, this page delivers verified electrical specs, validated pin functions, confirmed thermal and protection behavior, and real-world design context for rapid integration into 4 A load point applications.
Technical Context
The SIC463ED-T1-GE3 implements a voltage-mode constant-on-time (COT) control architecture with adaptive zero-current detection, enabling ultrafast transient response and stable loop operation across ceramic, polymer, and hybrid output capacitors. Its internal error amplifier (gm = 0.3 mS) interfaces with external RCOMP/CCOMP compensation and VSNS-based ripple injection (VRAMP ≥ 100 mV) to maintain stability in CCM, DCM, and ultrasonic modes.
It integrates dual LDOs (VDD and VDRV), programmable soft-start (via SS pin current source), user-configurable operation modes (forced CCM, power-save, ultrasonic), and full fault protection-including pulse-by-pulse OCP (set by ILIMIT resistor), OVP/UVP (FB-pin monitored), OTP (150 °C trip, 35 °C hysteresis), and open-drain PGOOD with 25 μs delay.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Current | 4 A continuous - supports mid-power loads without external heatsinking in standard PCB layouts |
| Input Voltage Range | 4.5 V to 60 V - enables direct regulation from 12 V, 24 V, 48 V rails and unregulated wall adapters |
| Output Voltage | Adjustable down to 0.8 V - precise setting via external resistor divider on VFB pin (±1 % accuracy over -40 °C to +125 °C) |
| Switching Frequency | 100 kHz to 2 MHz - set externally via fSW pin resistor; independent of VIN when VCIN = VIN |
| Peak Efficiency | 98 % - achieved at mid-load with optimized inductor and ceramic output capacitor selection |
| OCP Threshold | 4.8 A to 7.2 A - set by 40 kΩ resistor on ILIMIT pin, calibrated across -10 °C to +125 °C |
| Shutdown Current | 4 μA typical - enables ultra-low quiescent power in battery-backed or always-on standby systems |
Pinout & Package
Package: PowerPAK® MLP55-27L (5 mm × 5 mm, 27-pin lead-free QFN with exposed thermal pad).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCIN (1) | Bias supply input | Feeds internal VDD/VDRV LDOs; must be decoupled with 0.1 μF to AGND; accepts 4.5–60 V, but ≥5 V required if VIN < 5 V |
| PGOOD (2) | Open-drain status flag | Asserts high-Z when VOUT is within ±20 % of target; requires external pull-up; 7.5 Ω typical on-resistance |
| EN (3) | Enable control | High-voltage compatible (0–60 V); logic-high >1.35 V enables device; internal 7 MΩ pull-down prevents floating |
| BOOT (4) | High-side gate driver supply | Connected via RC network to PHASE; 4.7 Ω min series resistor recommended for SIC463ED-T1-GE3 |
| PHASE (5,6) | Switch node return path | Low-inductance connection point for high-side MOSFET source and bootstrap capacitor return |
| VIN (7,8,29) | Main power input | Drain of high-side MOSFET; connects to bulk input capacitor; multiple pins reduce IR drop and thermal resistance |
| PGND (9,10,11,17,30) | Power ground | High-current return for MOSFETs and input/output caps; must be tied directly to thermal pad under package |
| SW (12,13,14) | Switch node | Connects to inductor; high di/dt path requiring short, wide copper; shared by both MOSFETs |
| GL (15) | Low-side gate driver output | Direct drive signal to low-side MOSFET gate; not accessible externally; internally generated |
| VDRV (16) | Gate driver bias supply | LDO output (4.75–5.55 V); decoupled with 4.7 μF to PGND; can be bypassed with external 5 V supply in Mode 3/4 |
| ULTRASONIC (18) | Audible-noise suppression control | Tie to VDD to enforce >20 kHz minimum switching frequency in DCM; float to disable and allow sub-20 kHz operation |
| SS (19) | Soft-start timing | Internal 5 μA current charges external capacitor; sets ramp time (tSS = CSS × 0.2 V/μs) |
| VSNS (20) | Ripple injection feedback | Accepts VRAMP signal for stability with low-ESR capacitors; requires Rx/Cx/Cy network per datasheet guidelines |
| COMP (21) | Error amplifier output | Connects to RCOMP/CCOMP network; drives compensation loop; 15–20 μA sink/source capability |
| VFB (22) | Feedback reference input | Monitors resistive divider from VOUT; 0.8 V internal reference (±0.8 % over temp); 2 nA bias current |
| AGND (23,28) | Analog ground reference | Separate from PGND; must be shorted together with wide trace and connected under IC to minimize noise coupling |
| fSW (24) | Frequency programming | Resistor-to-AGND sets on-time; determines fSW = 100 kHz–2 MHz; no VIN dependency when VCIN = VIN |
| ILIMIT (25) | Current limit programming | Resistor-to-AGND sets valley OCP threshold; 40 kΩ yields 4.8–7.2 A for SIC463ED-T1-GE3 |
| VDD (26) | Core logic supply | Internal LDO output (4.75–5.25 V); decoupled with 1 μF to AGND; UVLO at 4.25 V (225 mV hysteresis) |
| MODE (27) | Operating mode select | Resistor-to-AGND selects among 4 configurations: power-save, forced CCM, or external VDRV options |
Key Features
| Feature | Design Value |
|---|---|
| Wide input range support | Operates from 4.5 V to 60 V single supply-eliminates need for pre-regulators in 12/24/48 V industrial systems |
| Ultrafast transient response | Maintains tight output regulation (< ±1 %) during 1 A/μs load steps using only 22 μF ceramic output capacitance |
| Configurable light-load efficiency | Diode emulation + frequency foldback in power-save mode achieves >85 % efficiency at 10 mA output |
| Robust fault recovery | Auto-retry UVP and thermal shutdown with hysteresis prevent latch-up during intermittent faults |
| Flexible compensation | VSNS-based ripple injection allows stable operation with any capacitor type-no ESR dependency |
Applications
| Industrial Computing | Telecom Power Supplies |
|---|---|
Use Scenario: Point-of-load regulation for FPGA I/O banks and ASIC core rails in programmable logic controllers and edge AI gateways. IC Role / Device Role / Timing Role: Primary 4 A buck regulator delivering 1.2 V or 1.8 V from 24 V backplane, with sequencing via EN and PGOOD. Use Value: Enables compact, fanless designs with 98 % peak efficiency and minimal thermal derating at 60 °C ambient. | Use Scenario: Intermediate bus conversion in 48 V distributed power architectures for base station RF modules and optical line cards. IC Role / Device Role / Timing Role: Secondary 5 V or 3.3 V regulator powered from 48 V intermediate bus, supporting dynamic load transients up to 2 A/μs. Use Value: Delivers stable output with < 10 mV ripple under full load, eliminating need for post-regulator LDOs. |
| Robotics Power Management | Home Automation Hubs |
Use Scenario: Motor driver logic supply and sensor interface rail in collaborative robot joint controllers. IC Role / Device Role / Timing Role: 4 A buck supplying 5 V to microcontroller, CAN transceivers, and IMU sensors-enabled synchronously with main system power. Use Value: Integrated OCP and OTP protect against motor stall faults and enclosure overheating without external circuitry. | Use Scenario: Centralized 3.3 V rail generation for Zigbee, Thread, and BLE radios in smart home hubs with always-on connectivity. IC Role / Device Role / Timing Role: Always-on regulator operating in ultrasonic mode (>20 kHz) to eliminate audible coil whine during sleep cycles. Use Value: Achieves 4 μA shutdown current and 235 μA quiescent draw-extending battery backup runtime beyond 72 hours. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar synchronous buck regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MP2451DT-LF-Z | 3 A rated, 4.5–36 V input, fixed 500 kHz fSW, no ultrasonic mode or VSNS compensation | Limited to lower current and narrower input range; lacks advanced light-load modes and ripple injection flexibility | Choose for cost-sensitive, fixed-frequency 3 A designs where 48 V input or sub-20 kHz noise immunity is not required |
| TPS54332DDAR | 3 A, 3.5–28 V input, adjustable frequency up to 1.2 MHz, no integrated low-side FET or OCP via ILIMIT pin | Requires external low-side MOSFET and current-sense resistor; less integrated, higher BOM count | Prefer when design requires external MOSFET selection or operates exclusively below 28 V with legacy TI ecosystem tooling |
Compared with MP2451DT-LF-Z and TPS54332DDAR, the SIC463ED-T1-GE3 offers higher current (4 A), wider input (60 V), integrated dual-FET power stage, and unique VSNS-based stability-making it optimal for space-constrained, high-voltage industrial and telecom applications demanding robustness and configurability.
Availability
SIC463ED-T1-GE3 is available at Aetrix Electronics and suitable for industrial computing, telecom power supplies, and robotics requiring stable component supply, long-term lifecycle assurance, and consistent parametric performance across production batches.
Supply support for SIC463ED-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 and passive components, specializing in high-reliability power management solutions for industrial, automotive, and computing markets.
The SiC46x family-including SIC463ED-T1-GE3-is engineered for high-density, wide-input DC/DC conversion in harsh environments, emphasizing integration, thermal resilience, and protection-rich operation without external complexity.
FAQ
What is the maximum input voltage rating for the SIC463ED-T1-GE3?
The SIC463ED-T1-GE3 has an absolute maximum input voltage (VIN) rating of 66 V referenced to PGND, with recommended continuous operation up to 60 V. Exceeding 60 V may trigger overvoltage stress conditions and is not supported for sustained use. The device's internal high-side MOSFET and gate drivers are specifically characterized for reliable operation within the 4.5 V to 60 V range specified in the datasheet.
How is the output current limit configured on the SIC463ED-T1-GE3?
The output current limit on the SIC463ED-T1-GE3 is set by an external resistor connected between the ILIMIT pin and AGND. For the SIC463ED-T1-GE3 variant, a 40 kΩ resistor configures the valley current limit to 4.8 A (min) to 7.2 A (max) across temperature. This resistor value is distinct from other SiC46x family members (e.g., SiC461 uses 60 kΩ for 10 A), ensuring accurate current limiting specific to the 4 A rating of the SIC463ED-T1-GE3.
Does the SIC463ED-T1-GE3 support output voltage tracking or sequencing?
Yes, the SIC463ED-T1-GE3 supports output voltage tracking and sequencing through its SS (soft-start) and EN pins. Pre-bias start-up is enabled by default, allowing the device to regulate even when the output capacitor is pre-charged. Sequencing with other rails is achieved by controlling EN timing and using the open-drain PGOOD signal to enable downstream converters-no additional external circuitry is required for basic tracking or power-up coordination.
What package type and thermal characteristics does the SIC463ED-T1-GE3 use?
The SIC463ED-T1-GE3 is housed in the PowerPAK® MLP55-27L package-a 5 mm × 5 mm, 27-pin lead-free QFN with exposed thermal pad. It features a junction-to-ambient thermal resistance (RθJA) of 12 °C/W and junction-to-case (RθJC) of 2 °C/W under standard JEDEC 2-layer board conditions. These values enable 4 A continuous operation without forced air, provided the thermal pad is soldered to a ≥2 cm² copper pour connected to internal ground planes.
Can the SIC463ED-T1-GE3 operate with ceramic output capacitors only?
Yes, the SIC463ED-T1-GE3 is explicitly designed to operate stably with low-ESR ceramic output capacitors. Its VSNS pin enables ripple injection (VRAMP ≥ 100 mV) to ensure loop stability in CCM, DCM, and ultrasonic modes-eliminating the traditional requirement for aluminum or tantalum capacitors with inherent ESR. Stability is maintained regardless of capacitor type, provided the VRAMP network (Rx, Cx, Cy) is sized per the datasheet equations.
SIC463ED-T1-GE3 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay Siliconix
- Series:
- microBUCK®
- Package/Case:
- PowerPAK® MLP55-27
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Function:
- Step-Down
- Output Configuration:
- Positive
- Topology:
- Buck
- Output Type:
- Adjustable
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 4.5V
- Voltage - Input (Max):
- 60V
- Voltage - Output (Min/Fixed):
- 0.8V
- Voltage - Output (Max):
- 55.2V
- Current - Output:
- 4A
- Frequency - Switching:
- 100kHz ~ 2MHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- PowerPAK® MLP55-27
SIC463ED-T1-GE3 FAQ
1.How can I place an order for SIC463ED-T1-GE3 through Aetrix?
Please submit a Request for Quotation (RFQ) for SIC463ED-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 SIC463ED-T1-GE3 reliable?
The price and inventory of SIC463ED-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 SIC463ED-T1-GE3 is usually 5 days.
3.What payment methods are accepted for SIC463ED-T1-GE3?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SIC463ED-T1-GE3 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SIC463ED-T1-GE3?
SIC463ED-T1-GE3 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SIC463ED-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 SIC463ED-T1-GE3?
For technical support, including SIC463ED-T1-GE3 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SIC463ED-T1-GE3 requirements.
6.How does Aetrix verify that SIC463ED-T1-GE3 is sourced from the original manufacturer or authorized distributors?
All SIC463ED-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 SIC463ED-T1-GE3 meets industry standards.
7.What is the process for return or replacement of SIC463ED-T1-GE3?
All SIC463ED-T1-GE3 units undergo pre-shipment inspection (PSI). If there is an issue with SIC463ED-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 SIC463ED-T1-GE3 part is unused and in its original packaging.
Return procedure for SIC463ED-T1-GE3:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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