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Vishay Siliconix SIP12107DB
- Part No.:
- SIP12107DB
- Manufacturer:
- Vishay Siliconix
- Package:
- Datasheet:
-
SIP12107DB.pdf
- Description:
- EVAL BOARD FOR SIP12107
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Product details
Overview
SIP12107DB from Vishay is a highly integrated synchronous buck regulator in the microBUCK® family, designed for point-of-load DC/DC conversion with internal power MOSFETs, 3 A output current capability, and adaptive on-time control architecture. It operates from 2.8 V to 5.5 V input, delivers 0.6 V to 4.6 V adjustable output, and achieves up to 95 % peak efficiency in compact 3 mm × 3 mm MLP33-16L package - used in notebook computers and digital consumer power rails.
For engineers reviewing the SIP12107DB datasheet, SIP12107DB pinout, SIP12107DB application, or SIP12107DB equivalent, key selection criteria include its VIN range (2.8–5.5 V), programmable soft-start, output over-voltage protection, pseudo-fixed frequency adaptive on-time control, and ceramic-capacitor-compatible design without ESR requirements.
Technical Context
The SIP12107DB implements a valley-current-mode adaptive on-time control architecture with zero-cross detection and anti-cross-conduction logic, enabling fast transient response and stable operation across wide load and input variations. Its integrated power stage includes high- and low-side MOSFETs with matched RDS(on) and thermal coupling optimized for 3 A continuous output.
It features a 0.6 V ±1 % internal reference, programmable soft-start via external capacitor, and comprehensive protection including UVLO, OVP, OCP, short-circuit, and over-temperature shutdown - all implemented in analog hardware without requiring external supervision.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 2.8 V to 5.5 V - supports single-cell Li-ion, USB PD, and 3.3 V/5 V system rails without pre-regulation. |
| Output Voltage Range | 0.6 V to 4.6 V - adjustable via external resistor divider; 0.6 V reference enables core voltage regulation for modern SoCs. |
| Max Output Current | 3 A continuous - sufficient for GPU I/O, DDR termination, and FPGA auxiliary rails in space-constrained designs. |
| Peak Efficiency | 95 % at 12 VIN/3.3 VOUT - minimizes thermal load and extends battery life in portable applications. |
| Switching Frequency | 200 kHz to 4 MHz - user-selectable via external resistor; higher frequencies enable smaller external inductors and capacitors. |
| Protection Features | UVLO, OVP, OCP, short-circuit, and OTP - autonomous fault handling without host intervention or firmware dependency. |
| Control Architecture | Pseudo-fixed frequency adaptive on-time - provides inherent stability across input/output variations without loop compensation components. |
Pinout & Package
Package: MLP33-16L (3 mm × 3 mm × 0.9 mm, thermally enhanced QFN with exposed pad). Pin count: 16-pin, dual-row layout with symmetric power/ground distribution.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN | Input power supply | Accepts 2.8–5.5 V; multiple pins (1, 11–13, 14–15) reduce IR drop and improve thermal spreading. |
| PGND | Power ground return | Low-inductance path for high di/dt switching currents; tied to exposed thermal pad for heatsinking. |
| LX | Switch node | Connects to external inductor; requires low-ESR ceramic capacitor and tight layout to minimize ringing. |
| FB | Feedback input | Resistor-divider connection point for output voltage regulation; high-impedance input minimizes loading error. |
| EN/PSV | Enable / power-save mode control | Active-high logic input; tri-state compatible for sequencing; pulls down to disable regulator and enter ultra-low quiescent mode. |
| PGOOD | Power-good status output | Open-drain signal indicating regulated output within ±10 % tolerance; used for system power sequencing and fault reporting. |
| SS | Soft-start timing | Capacitor-connected pin controlling ramp rate of output voltage; prevents inrush current and overshoot during startup. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated high- and low-side MOSFETs | Eliminates external power switches and gate drivers, reducing BOM count and PCB area by >40 % vs discrete solutions. |
| Adaptive on-time control with ZCD | Enables stable operation without external compensation components and maintains consistent transient response across line/load changes. |
| No ESR requirement for output capacitor | Supports low-profile ceramic capacitors only - simplifies filtering design and improves reliability versus electrolytic/tantalum alternatives. |
| Programmable soft-start and soft-shutdown | Prevents input voltage droop and output overshoot during power-up/down; configurable via single external capacitor. |
| Thermally enhanced MLP33-16L package | 3 mm × 3 mm footprint with exposed thermal pad achieves θJA ≈ 45 °C/W - enables 3 A operation without forced air or heatsink. |
Applications
| Notebook CPU Core Power | Digital TV SoC I/O Supply |
|---|---|
|
Use Scenario: Regulating 0.8 V–1.2 V core voltage for ARM-based application processors in thin-and-light notebooks. IC Role / Device Role / Timing Role: Primary synchronous buck regulator delivering tightly regulated, low-noise DC power with fast transient response to dynamic CPU load steps. Use Value: 95 % efficiency at 2 A load reduces thermal dissipation by >1.2 W vs legacy solutions, enabling fanless operation and extended battery runtime. |
Use Scenario: Providing 3.3 V I/O rail for video decoder SoCs in 4K digital HDTV platforms. IC Role / Device Role / Timing Role: Point-of-load regulator with PGOOD signaling for system-level power sequencing and fault isolation. Use Value: Integrated OVP and OCP prevent damage to sensitive HDMI/MIPI interfaces during hot-plug or ESD events without external protection circuitry. |
| STB Memory Termination | Industrial IoT Sensor Hub Rail |
|
Use Scenario: Generating 1.5 V DDR3/LPDDR4 termination voltage in set-top box mainboards. IC Role / Device Role / Timing Role: Low-noise, high-PSRR buck converter with ceramic-capacitor-only output filter for clean memory interface power. Use Value: Anti-cross-conduction logic and valley-current sensing suppress shoot-through losses, maintaining <15 mV ripple under 1 A step loads. |
Use Scenario: Powering multi-sensor fusion modules (IMU, environmental, BLE) in battery-powered industrial gateways. IC Role / Device Role / Timing Role: Always-on buck regulator with programmable soft-start and ultra-low quiescent current in PSV mode. Use Value: 200 kHz minimum switching frequency enables use of high-inductance, low-DCR chokes - extending battery life beyond 12 months in sleep mode. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar synchronous buck regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SiP12108 | Higher VIN range (4.5–16 V); same 3×3 MLP33-16L package and 6 A rating. | Targets 12 V intermediate bus systems (e.g., networking PoE injectors), not low-VIN portable rails. | Select SiP12108 only when input exceeds 5.5 V; SIP12107DB remains optimal for ≤5.5 V battery/USB-powered designs. |
| SiC414CD | SO-8 package; 4 A rating; 4.75–26 V input; includes integrated LDO bypass logic. | Used in industrial PLC I/O modules where wider VIN and auxiliary LDO functionality are required. | SiC414CD offers higher current and broader input but larger footprint; SIP12107DB provides superior power density for space-constrained consumer devices. |
Compared with SiP12108 and SiC414CD, the SIP12107DB delivers best-in-class power density and efficiency for sub-5.5 V inputs, while its 3 mm × 3 mm footprint and ceramic-capacitor compatibility make it uniquely suited for ultra-thin mobile and consumer electronics where board area and thermal headroom are critical constraints.
Availability
SIP12107DB is available at Aetrix Electronics and suitable for notebook computers, digital HDTV power rails, and embedded point-of-load applications requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for SIP12107DB 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 Intertechnology, Inc. is a global manufacturer of discrete semiconductors and passive components, founded in 1962 and headquartered in Malvern, PA.
The SIP12107DB belongs to Vishay's microBUCK® family of highly integrated synchronous buck regulators, engineered specifically for space- and efficiency-critical point-of-load power delivery in portable and consumer electronics.
FAQ
What is the maximum recommended output current for SIP12107DB under continuous operation?
The SIP12107DB is rated for 3 A continuous output current with proper PCB layout and thermal management. This rating assumes 2-layer board with 1 oz copper, 200 mm² exposed thermal pad copper area, and ambient temperature ≤60 °C. Derating applies above 60 °C ambient or with reduced copper area. The SIP12107DB integrates thermal shutdown to protect against sustained overload conditions.
Does SIP12107DB require an external bootstrap capacitor?
No, the SIP12107DB integrates a bootstrap diode and does not require an external bootstrap capacitor. Its internal charge pump and valley-current sensing eliminate the need for discrete bootstrap components, simplifying layout and improving reliability. This design feature is confirmed in the functional block diagram and typical application circuit on page 9 of the Vishay VMN-PL0427-1210 datasheet for SIP12107DB.
What is the purpose of the EN/PSV pin on SIP12107DB?
EN/PSV is a dual-function pin that enables the SIP12107DB when driven high and activates power-save mode when pulled low or left floating (depending on internal bias). In power-save mode, the SIP12107DB reduces switching frequency and quiescent current to extend battery life during light loads. The pin accepts standard CMOS logic levels and supports tri-state sequencing with other system regulators.
Can SIP12107DB operate with only ceramic output capacitors?
Yes, the SIP12107DB is explicitly designed for ceramic-only output filtering with no ESR requirement. Its control loop and anti-cross-conduction logic stabilize operation with low-ESR MLCCs down to 10 µF total capacitance. This eliminates electrolytic or tantalum capacitors, improving reliability and reducing height in ultra-thin applications where the SIP12107DB is commonly deployed.
What protection features are integrated into SIP12107DB?
The SIP12107DB integrates under-voltage lockout (UVLO), output over-voltage protection (OVP), output over-current protection (OCP), short-circuit protection, and over-temperature protection (OTP). All functions operate autonomously using internal analog comparators and thresholds - no external components or host monitoring are needed. These protections are documented in the "Protection Features" table on page 2 of the Vishay microBUCK® product overview for SIP12107DB.
SIP12107DB Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay Siliconix
- Series:
- microBUCK®
- Packaging:
- Box
- Product Status:
- Active
- Main Purpose:
- DC/DC, Step Down
- Outputs and Type:
- 1 Non-Isolated Output
- Voltage - Output:
- -
- Current - Output:
- -
- Voltage - Input:
- 3A
- Regulator Topology:
- 2.8V ~ 5.5V
- Frequency - Switching:
- Buck
- Contents:
- -
- Utilized IC / Part:
- Board(s)
- Power - Output:
- SiP12107
SIP12107DB FAQ
1.How can I place an order for SIP12107DB through Aetrix?
Please submit a Request for Quotation (RFQ) for SIP12107DB 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 SIP12107DB reliable?
The price and inventory of SIP12107DB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SIP12107DB is usually 5 days.
3.What payment methods are accepted for SIP12107DB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SIP12107DB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SIP12107DB?
SIP12107DB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SIP12107DB 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 SIP12107DB?
For technical support, including SIP12107DB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SIP12107DB requirements.
6.How does Aetrix verify that SIP12107DB is sourced from the original manufacturer or authorized distributors?
All SIP12107DB 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 SIP12107DB meets industry standards.
7.What is the process for return or replacement of SIP12107DB?
All SIP12107DB units undergo pre-shipment inspection (PSI). If there is an issue with SIP12107DB, 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 SIP12107DB part is unused and in its original packaging.
Return procedure for SIP12107DB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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