Vishay Siliconix SIP12110DB

Overview

SiP12110DB from Vishay Siliconix is a reference board for the SiP12110 6 A synchronous buck regulator IC, supporting 4.5 V to 15 V input and adjustable 0.6 V–5.5 V output. It implements constant-on-time current-mode control at up to 1 MHz, integrates high-side (45 mΩ) and low-side (27 mΩ) MOSFETs, and delivers 95 % peak efficiency in a 3 mm × 3 mm QFN16-33G package for point-of-load regulation in computing and networking systems.

For engineers reviewing the SiP12110DB datasheet, SiP12110DB pinout, SiP12110DB application, or SiP12110DB equivalent, this reference board enables rapid validation of the SiP12110's ultrafast transient response, light-load power-save operation, PGOOD monitoring, and full protection suite-including OVP, UVP, OTP, and cycle-by-cycle OCP-under real PCB layout and thermal conditions.

Technical Context

The SiP12110DB implements the SiP12110 IC in a fully assembled, tested evaluation platform with optimized 4-layer PCB layout per Vishay's recommended land pattern. It includes all critical external components: 1 μH IHLP1616BZER1R0M11 inductor; three 22 μF output capacitors (TDK LMK212BJ226MG-T and C2012X5R1V226M125AC); 0.1 μF ceramic input decoupling; and precision feedback resistors (R6/R7 = 5.11 kΩ) setting nominal 1.2 V output.

This board supports programmable switching frequency (400 kHz–1 MHz) via RON (75 kΩ), soft-start timing via SS capacitor, and pre-bias startup capability. Its design validates the SiP12110's CM-COT architecture stability with any capacitor type-no ESR network required-and demonstrates <20 μs load-step undershoot recovery from 0 A to 6 A per Figure 10.

Key Specifications

Availability

SiP12110DB is available at Aetrix Electronics and suitable for computing, networking, and industrial power system development requiring stable component supply, fast prototyping cycles, and production-ready reference designs.

Supply support for SiP12110DB 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 integrated power solutions, specializing in high-efficiency, high-density power conversion ICs and MOSFETs for demanding industrial and communications applications.

The SiP12110DB belongs to Vishay's microBUCK product line-designed specifically for compact, high-performance point-of-load regulation in space-constrained systems such as network processors, FPGAs, and DSPs where fast transient response and light-load efficiency are critical.

FAQ

What is the SiP12110DB used for?

The SiP12110DB is a fully assembled reference board for evaluating the SiP12110 synchronous buck regulator IC. It enables engineers to validate performance-including efficiency, transient response, protection behavior, and loop stability-under real-world PCB layout, thermal, and loading conditions before committing to custom design. The board ships with all critical passives installed and configured for 1.2 V output.

Does the SiP12110DB include the SiP12110 IC?

Yes, the SiP12110DB integrates one SiP12110DMP-T1-GE4 IC in the QFN16-33G package (3 mm × 3 mm). This is the same production-grade device specified in Vishay's datasheet (Document #64299), not a sample or engineering variant. The IC is soldered and tested on the board per Vishay's reference schematic and layout guidelines.

Can the SiP12110DB be used to test different output voltages?

Yes. The SiP12110DB supports adjustable output voltage from 0.6 V to 5.5 V by modifying the feedback resistor divider (R6 and R7). The default configuration uses two 5.11 kΩ resistors for 1.2 V output. Engineers can replace these with standard E96 values to set other regulated outputs while maintaining ±1 % VFB accuracy and full protection functionality.

What input voltage range is validated on the SiP12110DB?

The SiP12110DB is validated across the full SiP12110 operating input range: 4.5 V to 15 V DC. Vishay's reference schematic and test data (Fig. 4–9) confirm stable regulation, efficiency, and protection behavior at 12 V and 5 V inputs. Input UVLO (2.55 V typ.) and VCC regulation (4.5–5.5 V) are fully functional across this range when VCC is tied to VIN per datasheet Note 1.

How does the SiP12110DB demonstrate the SiP12110's light-load efficiency features?

The SiP12110DB validates the SiP12110's power-save scheme-including diode emulation mode and frequency foldback-by measuring efficiency down to 10 mA load. At light loads, the board shows >80 % efficiency due to automatic LS FET turn-off at zero-crossing and reduced switching frequency, eliminating recirculating current and minimizing switching losses without compromising output ripple or regulation.