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Vishay Siliconix SIP12110DMP-T1-GE4
- Part No.:
- SIP12110DMP-T1-GE4
- Manufacturer:
- Vishay Siliconix
- Package:
- 16-VFQFN Exposed Pad
- Datasheet:
-
SIP12110DMP-T1-GE4.pdf
- Description:
- IC REG BUCK ADJ 6A 16MLP
- Quantity:
- Payment:
- Shipping:
Inventory:1,928
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Product details
Overview
SiP12110DMP-T1-GE4 from Vishay Siliconix is a monolithic synchronous buck regulator integrating high-side and low-side MOSFETs, delivering 6 A continuous output current with adjustable 0.6 V to 5.5 V output voltage from a 4.5 V–15 V input. It employs current-mode constant-on-time (CM-COT) control for ultrafast transient response and operates up to 1.0 MHz switching frequency. This device serves as a point-of-load regulator in FPGA, DSP, and network processor power supplies.
For engineers reviewing the SiP12110DMP-T1-GE4 datasheet, SiP12110DMP-T1-GE4 pinout, SiP12110DMP-T1-GE4 application, or SiP12110DMP-T1-GE4 equivalent, key selection criteria include its integrated 45 mΩ/27 mΩ power stage, ±1% VFB accuracy, programmable on-time via RON, PGOOD open-drain indicator, and full protection suite including OVP, UVP, OTP, and cycle-by-cycle OCP.
Technical Context
The SiP12110DMP-T1-GE4 implements a current-mode constant-on-time (CM-COT) architecture that uses inductor valley current sensing and internal 0.6 V reference feedback to generate fixed on-time pulses-programmable via external RON resistor-with variable off-time for pseudo-constant frequency operation. Its control loop requires only an external RC network on COMP for stability and supports diode emulation and frequency foldback in light-load conditions.
This regulator integrates a 45 mΩ high-side and 27 mΩ low-side n-channel MOSFET pair optimized for 95% peak efficiency at 1 MHz. It features dedicated analog ground (AGND) and power ground (PGND) separation, internal 5 μA soft-start current source, and independent UVLO on VCC (2.55 V threshold) and EN (1.5 V high-level threshold).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 4.5 V to 15 V - supports standard 5 V and 12 V intermediate bus rails without external regulation |
| Output Voltage Range | 0.6 V to 5.5 V - adjustable via external resistor divider; 0.6 V reference enables core voltage scaling for modern processors |
| Continuous Output Current | 6 A - delivered from single QFN16 package without external power stages or heatsinking |
| Switching Frequency | 400 kHz to 1.0 MHz - selectable via RON; higher frequencies reduce inductor size, lower frequencies improve light-load efficiency |
| VFB Reference Accuracy | ±1% at –40 °C to +85 °C - ensures tight output regulation across industrial temperature range |
| Peak Efficiency | 95% at 12 VIN/1.2 VOUT/6 A - achieved via low RDS(on) MOSFETs and optimized gate drive |
| Thermal Shutdown Threshold | 160 °C with 35 °C hysteresis - protects against sustained overload or poor PCB thermal design |
| Power Good Threshold | Rising: +21% above 0.6 V (0.725 V); falling: –12.5% below 0.6 V (0.525 V) - provides precise enable/disable sequencing margin |
Pinout & Package
The SiP12110DMP-T1-GE4 is housed in a lead-free, power-enhanced QFN16-33G package measuring 3.0 mm × 3.0 mm × 0.8 mm with exposed thermal pad (PAD). The package supports high-current routing via multiple VIN, LX, PGND, and thermal pad connections.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 16 (VIN) | High-side MOSFET drain input | Primary power input node; connects directly to bulk capacitor; dual pins reduce IR drop and thermal resistance |
| 2 (VCC) | Internal bias regulator output | Supplies gate drive and control logic; must be tied to VIN if VIN < 5.5 V per datasheet Note 1 |
| 3 (AGND) | Analog reference ground | Reference for feedback, compensation, and internal references; must be star-connected to minimize noise coupling |
| 4 (RON) | On-time programming input | External resistor to AGND sets fixed on-time; determines switching frequency and light-load behavior |
| 5 (COMP) | Error amplifier output | Connects to external type-II RC compensator; controls loop bandwidth and transient response |
| 6 (VFB) | Feedback input | Monitors output via resistor divider; 0.6 V internal reference enables precision output setting |
| 7 (SS) | Soft-start timing node | External capacitor to AGND sets monotonic output ramp time; prevents inrush current |
| 8 (EN) | Enable control input | Logic-high (>1.5 V) enables regulation; logic-low (<0.4 V) disables with controlled shutdown |
| 9 (PGOOD) | Open-drain power-good indicator | Signals valid output voltage; requires external pull-up; asserts after soft-start and within PGOOD window |
| 10–12 (LX) | Switching node | Connection point for power inductor; three parallel pins reduce parasitic inductance and thermal stress |
| 13 (BOOT) | Bootstrap supply for high-side gate | Requires ≥100 nF capacitor to LX; enables high-side MOSFET drive above VIN rail |
| 14, 15, PAD (PGND) | Power ground return | Low-impedance path for high-frequency switch currents; exposed thermal pad must be soldered to PCB ground plane |
Key Features
| Feature | Design Value |
|---|---|
| Integrated Power Stage | 45 mΩ high-side + 27 mΩ low-side n-MOSFETs eliminate external discrete FETs and driver ICs |
| CM-COT Control Architecture | Delivers sub-10 μs load-step undershoot response without requiring high-ESR output capacitors |
| Light-Load Power Saving | Diode emulation mode + frequency foldback increase efficiency at <100 mA while maintaining regulation |
| Full Protection Suite | OVP (21% over VFB), UVP (–65% under VFB), OTP (160 °C), cycle-by-cycle OCP (7.5 A typ.), and UVLO |
| Pre-bias Startup Support | Prevents reverse current flow and negative voltage spikes when output is pre-charged before enable |
| Output Voltage Tracking | Enables coordinated ramp-up with other rails using external circuitry connected to SS and VFB |
Applications
| FPGA Core Supply | Network Processor PoL |
|---|---|
Use Scenario: Providing tightly regulated 0.85 V–1.2 V core voltage to Xilinx Artix-7 or Intel Cyclone V FPGA during dynamic clock and logic activity. IC Role / Device Role / Timing Role: Primary point-of-load regulator with fast transient response to handle >3 A load steps within 10 μs. Use Value: Maintains core voltage within ±2% during 0–6 A transients, preventing logic errors and enabling higher clock frequencies. | Use Scenario: Delivering 1.0 V/3 A to Marvell ARMADA XP network processor in telecom access equipment with strict ripple limits. IC Role / Device Role / Timing Role: High-density buck converter supplying CPU core rail with integrated MOSFETs and minimal external components. Use Value: Achieves 95% efficiency at full load while occupying <100 mm² PCB area, reducing thermal management complexity. |
| Industrial PLC I/O Module | Distributed Telecom Power |
Use Scenario: Generating isolated 3.3 V auxiliary rail from 12 V backplane in DIN-rail mounted programmable logic controller. IC Role / Device Role / Timing Role: Non-isolated step-down regulator powering microcontroller, ADC, and digital I/O buffers. Use Value: Stable operation from –40 °C to +85 °C ambient with built-in OTP and UVP prevents field failures due to overtemperature or brownout. | Use Scenario: Point-of-load conversion in 48 V distributed power architecture for optical line terminal (OLT) cards. IC Role / Device Role / Timing Role: Secondary-stage buck regulator converting 12 V intermediate bus to 1.8 V ASIC supply. Use Value: Programmable RON allows frequency tuning to avoid noise coupling into sensitive RF sections while maintaining 6 A capability. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar synchronous buck regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MP2315DJ-LF-Z | 4.5–24 V input, 3 A output, fixed 500 kHz frequency, no RON programming, lower current rating | Suitable for lower-power SoCs but lacks 6 A capability and adjustable frequency | Select MP2315DJ-LF-Z only when 3 A output suffices and board space constraints favor smaller QFN8 package |
| TPS54620RGYR | 4.5–17 V input, 6 A output, voltage-mode control, external compensation, 2.5–2.2 MHz frequency range | Higher switching frequency enables smaller magnetics but requires more complex loop compensation | Choose TPS54620RGYR when EMI filtering favors >2 MHz operation and design team has voltage-mode loop expertise |
Compared with MP2315DJ-LF-Z and TPS54620RGYR, the SiP12110DMP-T1-GE4 uniquely combines 6 A capability, CM-COT ultrafast transient response, and simple RON-based frequency tuning-reducing component count and layout sensitivity while maintaining industrial temperature range and full fault protection.
Availability
SiP12110DMP-T1-GE4 is available at Aetrix Electronics and suitable for FPGA power delivery, network processor point-of-load regulation, and industrial embedded systems requiring stable component supply and long-term production continuity.
Supply support for SiP12110DMP-T1-GE4 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-efficiency power management solutions with emphasis on integration, thermal performance, and reliability.
The SiP12110DMP-T1-GE4 belongs to Vishay's microBUCK product line-designed specifically for compact, high-current point-of-load DC/DC conversion in computing, networking, and industrial applications where board space and thermal density are critical.
FAQ
What is the maximum allowable input voltage for the SiP12110DMP-T1-GE4?
The SiP12110DMP-T1-GE4 has an absolute maximum input voltage of 16 V referenced to PGND, but its recommended operating range is 4.5 V to 15 V. Exceeding 15 V may trigger input UVLO or degrade long-term reliability. The device incorporates internal clamping and thermal protection, but sustained operation above 15 V is not specified and should be avoided in production designs.
How does the RON pin set switching frequency in the SiP12110DMP-T1-GE4?
The RON pin on the SiP12110DMP-T1-GE4 connects to an external resistor to AGND, which programs the fixed on-time (tON) according to tON = RON × K × VIN/VOUT, where K = 17.5 × 10−12. Since off-time varies with load and input/output conditions, this yields a pseudo-constant frequency ranging from 400 kHz to 1.0 MHz. A 75 kΩ resistor sets nominal 1.0 MHz operation at 12 VIN/1.2 VOUT.
Does the SiP12110DMP-T1-GE4 support pre-bias startup?
Yes, the SiP12110DMP-T1-GE4 supports pre-bias startup. During enable, it monitors the VFB pin; if the sensed voltage exceeds the internal soft-start reference ramp, the control logic inhibits switching to prevent reverse current through the low-side MOSFET and avoid output voltage collapse or negative spikes-critical for systems with powered-backup rails or hot-swap configurations.
What is the purpose of separate AGND and PGND pins on the SiP12110DMP-T1-GE4?
The SiP12110DMP-T1-GE4 separates AGND (analog ground) and PGND (power ground) to isolate noise-sensitive feedback and compensation circuitry from high-di/dt switching currents. AGND serves as the reference for VFB, COMP, RON, SS, and EN, while PGND returns high-frequency inductor and MOSFET currents. Proper star grounding-connecting both to a single low-impedance PCB ground plane near the device-is essential for stability and low-noise regulation.
Can the SiP12110DMP-T1-GE4 operate with ceramic output capacitors only?
Yes, the SiP12110DMP-T1-GE4 is explicitly designed to be stable with any capacitor type-including all-ceramic output banks-and requires no external ESR network. Its current-mode COT architecture eliminates the need for bulk electrolytic or tantalum capacitors with intentional ESR, enabling compact, high-reliability designs using only low-ESR MLCCs such as the 3 × 22 μF configuration shown in the typical application circuit.
SIP12110DMP-T1-GE4 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay Siliconix
- Series:
- -
- Package/Case:
- 16-VFQFN Exposed Pad
- 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):
- 15V
- Voltage - Output (Min/Fixed):
- 0.6V
- Voltage - Output (Max):
- 5.5V
- Current - Output:
- 6A
- Frequency - Switching:
- 400kHz ~ 1MHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-MLP (3x3)
SIP12110DMP-T1-GE4 FAQ
1.How can I place an order for SIP12110DMP-T1-GE4 through Aetrix?
Please submit a Request for Quotation (RFQ) for SIP12110DMP-T1-GE4 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 SIP12110DMP-T1-GE4 reliable?
The price and inventory of SIP12110DMP-T1-GE4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SIP12110DMP-T1-GE4 is usually 5 days.
3.What payment methods are accepted for SIP12110DMP-T1-GE4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SIP12110DMP-T1-GE4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SIP12110DMP-T1-GE4?
SIP12110DMP-T1-GE4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SIP12110DMP-T1-GE4 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 SIP12110DMP-T1-GE4?
For technical support, including SIP12110DMP-T1-GE4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SIP12110DMP-T1-GE4 requirements.
6.How does Aetrix verify that SIP12110DMP-T1-GE4 is sourced from the original manufacturer or authorized distributors?
All SIP12110DMP-T1-GE4 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 SIP12110DMP-T1-GE4 meets industry standards.
7.What is the process for return or replacement of SIP12110DMP-T1-GE4?
All SIP12110DMP-T1-GE4 units undergo pre-shipment inspection (PSI). If there is an issue with SIP12110DMP-T1-GE4, 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 SIP12110DMP-T1-GE4 part is unused and in its original packaging.
Return procedure for SIP12110DMP-T1-GE4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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