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Vishay Siliconix SIP12116DMP-T1-GE4
- Part No.:
- SIP12116DMP-T1-GE4
- Manufacturer:
- Vishay Siliconix
- Package:
- 10-VFDFN Exposed Pad
- Datasheet:
-
SIP12116DMP-T1-GE4.pdf
- Description:
- IC REG BUCK ADJ 3A 10DFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,095
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Product details
Overview
SiP12116DMP-T1-GE4 from Vishay Siliconix is a monolithic 3 A synchronous buck regulator with integrated high-side (85 mΩ) and low-side (55 mΩ) MOSFETs, operating at a fixed 600 kHz switching frequency across 4.5 V–15 V input to deliver adjustable output down to 0.6 V. It employs current-mode constant-on-time (CM-COT) control for ultrafast transient response in graphics card VRMs and notebook CPU core supplies.
For engineers reviewing the SiP12116DMP-T1-GE4 datasheet, SiP12116DMP-T1-GE4 pinout, SiP12116DMP-T1-GE4 application, or SiP12116DMP-T1-GE4 equivalent, key selection criteria include its integrated compensation, 2.2 ms soft-start, cycle-by-cycle overcurrent protection, power-good signaling, and thermal pad-enabled DFN10-33C package for high-power-density DC/DC conversion.
Technical Context
The SiP12116DMP-T1-GE4 implements a current-mode COT architecture where inductor valley current sensing (via RDS(on)) generates a voltage ramp compared against the error amplifier output to trigger fixed on-time pulses. This eliminates external loop compensation and ESR-dependent bulk capacitance requirements.
Its control logic integrates UVLO (2.8 V rising threshold), OTP shutdown at 145 °C with 35 °C hysteresis, and pre-bias startup protection. The PGOOD open-drain output asserts after VOUT reaches 95% of target and remains valid during undervoltage events.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input voltage range | 4.5 V to 15 V - supports 5 V, 12 V, and 15 V intermediate bus rails without external regulators |
| Output voltage range | 0.6 V to 5.5 V - programmable via resistor divider; 0.6 V reference enables modern low-voltage SoC core supplies |
| Continuous output current | 3 A - sustained delivery with thermal pad-assisted dissipation in DFN10-33C package |
| Switching frequency | 600 kHz - fixed frequency enables predictable EMI filtering and inductor selection |
| Feedback reference voltage | 600 mV ±12 mV - tight tolerance ensures <±1% output regulation accuracy across temperature |
| Shutdown current | <5 μA typical - enables ultra-low quiescent power in system standby modes |
| Power good threshold | Rising: 95% VOUT, Falling: −10% VOUT - provides robust sequencing margin for downstream logic |
Pinout & Package
The SiP12116DMP-T1-GE4 is housed in a lead-free 3 mm × 3 mm × 0.9 mm DFN10-33C package with an exposed thermal pad (AGND) on the bottom for enhanced heat transfer to PCB copper.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 FB | Feedback input | 0.6 V reference node; connects to resistor divider between VOUT and PGND to set output voltage |
| 2 VCC | Internal bias supply | Regulated 5 V output powering internal circuitry; decoupling required near pin |
| 3 VIN | Main power input | 4.5–15 V rail connection; high di/dt path requiring low-inductance ceramic capacitors |
| 4,5 PGND | Power ground return | Low-impedance return for high-current switching paths; must be connected directly to thermal pad |
| 6,7 LX | Switching node | Connection point for output inductor; carries full AC ripple current and high dv/dt transients |
| 8 BOOT | Bootstrap supply | Connects ≥100 nF capacitor to LX to generate floating gate drive voltage for high-side MOSFET |
| 9 PGOOD | Power-good indicator | Open-drain output asserting when VOUT is within ±5% of target; requires external pull-up |
| 10 EN | Enable control | Logic-level input: >1.5 V enables regulator; <0.4 V disables; must not float |
| Pad AGND | Analog ground / thermal slug | Primary thermal path to PCB; electrically tied to analog ground and must be soldered to solid copper pour |
Key Features
| Feature | Design Value |
|---|---|
| Integrated power stage | 85 mΩ high-side + 55 mΩ low-side MOSFETs enable >95% peak efficiency at 3 A without external switches |
| CM-COT control | Eliminates need for external compensation network and ESR-dependent output capacitors |
| Ultrafast transient response | Sub-10 μs undershoot recovery (0→3 A load step) due to current-sensing-based on-time modulation |
| Built-in protections | Cycle-by-cycle OCP (4.25 A typ.), OTP (145 °C), and UVLO ensure robust operation under fault conditions |
| Soft start | 2.2 ms monotonic ramp prevents inrush current and output overshoot during power-up |
Applications
| Graphics Cards | Set-Top Boxes |
|---|---|
Use Scenario: GPU core voltage regulation under dynamic compute loads up to 3 A. IC Role / Device Role / Timing Role: Primary synchronous buck converter delivering 0.8–1.2 V to GPU cores with fast load-step response. Use Value: CM-COT architecture achieves <10 μs transient recovery, minimizing voltage droop during shader clock bursts. | Use Scenario: Main SoC supply in cable/satellite STB platforms with 12 V input bus. IC Role / Device Role / Timing Role: Step-down regulator generating 3.3 V or 1.2 V for ARM-based media processors. Use Value: Integrated MOSFETs and compensation reduce BOM count by 4+ components versus controller+discrete solution. |
| LCD TVs | Notebook Computers |
Use Scenario: Backlight LED driver auxiliary supply and TCON logic rail in 32–65″ panels. IC Role / Device Role / Timing Role: Secondary buck regulator converting 12 V panel supply to 5 V or 1.8 V for timing controllers. Use Value: 600 kHz fixed frequency simplifies EMI filter design while maintaining >90% efficiency at light loads. | Use Scenario: CPU/GPU core voltage rail in thin-and-light notebooks with space-constrained layouts. IC Role / Device Role / Timing Role: Compact, thermally efficient 3 A buck supplying 0.6–1.35 V to mobile processors. Use Value: 3 mm × 3 mm DFN10-33C with thermal pad enables placement under heatsinks or near processor die. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar synchronous buck regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MP2315GJ-Z | 4.5–28 V input, 3 A, 500 kHz, no integrated compensation - requires external RC network | Wider VIN range suits industrial 24 V systems; lacks PGOOD and tighter VFB tolerance | Choose MP2315GJ-Z only if 24 V input compatibility is required and board area allows compensation components |
| TPS54332DDAR | 3.5–28 V input, 3 A, adjustable frequency (100–2500 kHz), external MOSFETs - higher layout complexity | Supports higher VIN and custom frequency tuning but increases component count and thermal management effort | Select TPS54332DDAR when design requires >15 V input or precise frequency synchronization with other converters |
Compared with MP2315GJ-Z and TPS54332DDAR, SiP12116DMP-T1-GE4 delivers lower system-level BOM cost and smaller footprint through monolithic integration, fixed 600 kHz operation, and elimination of external compensation - critical for space-constrained consumer electronics.
Availability
SiP12116DMP-T1-GE4 is available at Aetrix Electronics and suitable for graphics cards, set-top boxes, LCD TVs, and notebook computers requiring stable component supply, consistent thermal performance, and long-term production continuity.
Supply support for SiP12116DMP-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 designs and manufactures high-performance discrete semiconductors and integrated power solutions, with global manufacturing and reliability validation across qualified sites.
The SiP12116DMP-T1-GE4 belongs to Vishay's microBUCK product line-engineered specifically for compact, high-efficiency step-down regulation in computing, consumer, and networking applications where integration, thermal performance, and transient response are critical.
FAQ
What is the recommended input capacitor configuration for SiP12116DMP-T1-GE4?
The SiP12116DMP-T1-GE4 requires low-ESR ceramic input capacitors placed close to VIN and PGND pins. A combination of one 10 μF (1210) and two 10 nF (0402) capacitors is validated per Vishay's reference design. This minimizes high-frequency input ripple and reduces stress on the internal MOSFETs during switching transitions. Layout guidelines emphasize short, wide traces between VIN, PGND, and the capacitors to suppress noise coupling into the LX node.
Does SiP12116DMP-T1-GE4 support pre-bias startup?
Yes, SiP12116DMP-T1-GE4 supports pre-bias startup. Its control logic monitors the FB pin voltage during enable assertion; if the sensed voltage exceeds the internal reference ramp value, both high-side and low-side FETs remain off to prevent negative output voltage spikes caused by low-side FET conduction into a pre-charged output rail. This feature is confirmed in the Operational Description section of the official datasheet (Rev. D, p.10).
What is the thermal resistance (RθJA) of SiP12116DMP-T1-GE4 in standard PCB layout?
The junction-to-ambient thermal resistance (RθJA) of SiP12116DMP-T1-GE4 is 36.3 °C/W under standard JEDEC 2-layer board conditions (2 oz copper, 1 in² thermal pad). This value assumes proper soldering of the exposed AGND thermal pad to a solid copper pour with ≥6 thermal vias. Performance improves significantly with multilayer boards and larger copper areas, enabling continuous 3 A operation at ambient temperatures up to +85 °C.
Can SiP12116DMP-T1-GE4 operate with an output voltage below 0.6 V?
No, SiP12116DMP-T1-GE4 cannot regulate below 0.6 V. Its internal feedback reference is fixed at 600 mV ±12 mV (typ./max), and the datasheet specifies 0.6 V as the absolute minimum output voltage. Attempting to set lower outputs via external resistor scaling violates the reference accuracy specification and results in unstable regulation or failure to reach target voltage due to comparator offset limitations.
How does the cycle-by-cycle overcurrent protection work in SiP12116DMP-T1-GE4?
SiP12116DMP-T1-GE4 implements valley-current sensing via RDS(on) of the low-side MOSFET during its on-time. After a blanking period, the sensed valley current is compared to a fixed 4.25 A (typ.) threshold. If exceeded, the high-side FET pulse is skipped and the low-side FET remains on until current falls below the limit. This mechanism activates immediately after VIN exceeds UVLO and EN is asserted, providing instantaneous protection without delay.
SIP12116DMP-T1-GE4 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay Siliconix
- Series:
- -
- Package/Case:
- 10-VFDFN 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:
- 3A
- Frequency - Switching:
- 600kHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 10-DFN (3x3)
SIP12116DMP-T1-GE4 FAQ
1.How can I place an order for SIP12116DMP-T1-GE4 through Aetrix?
Please submit a Request for Quotation (RFQ) for SIP12116DMP-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 SIP12116DMP-T1-GE4 reliable?
The price and inventory of SIP12116DMP-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 SIP12116DMP-T1-GE4 is usually 5 days.
3.What payment methods are accepted for SIP12116DMP-T1-GE4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SIP12116DMP-T1-GE4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SIP12116DMP-T1-GE4?
SIP12116DMP-T1-GE4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SIP12116DMP-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 SIP12116DMP-T1-GE4?
For technical support, including SIP12116DMP-T1-GE4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SIP12116DMP-T1-GE4 requirements.
6.How does Aetrix verify that SIP12116DMP-T1-GE4 is sourced from the original manufacturer or authorized distributors?
All SIP12116DMP-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 SIP12116DMP-T1-GE4 meets industry standards.
7.What is the process for return or replacement of SIP12116DMP-T1-GE4?
All SIP12116DMP-T1-GE4 units undergo pre-shipment inspection (PSI). If there is an issue with SIP12116DMP-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 SIP12116DMP-T1-GE4 part is unused and in its original packaging.
Return procedure for SIP12116DMP-T1-GE4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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