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Home » NEWEST Products » New by Manufacturer » Vishay » SiP12109 Synchronous Buck Regulator - Vishay
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Vishay Semiconductor SiP12109  4 A , 4.5 V to 15 V Input Synchronous Buck Regulator
 Vishay Super 12 for 2014

Vishay Semiconductor SiP12109 4 A , 4.5 V to 15 V Input Synchronous Buck Regulator

Vishay Semiconductor SiP12109  4 A , 4.5 V to 15 V Input Synchronous Buck Regulator is a high frequency current-mode constant on-time (CM-COT) synchronous buck regulator with integrated high-side and low-side power MOSFETs. Its power stage is capable of supplying 4 A continuous current at 1.5 MHz switching frequency. This regulator produces an adjustable output voltage down to 0.6 V from 4.5 V to 15 V input rail to accommodate a variety of applications, including computing, consumer electronics, telecom, and industrial.
   SiP12109's CM-COT architecture delivers ultra-fast transient response with minimum output capacitance and tight ripple regulation at very light load. The part is stable with any capacitor type and no ESR network is required for loop stability. The device also incorporates a power saving scheme that significantly increases light load efficiency.
   The regulator integrates a full protection feature set, including output overvoltage protection (OVP), output under voltage protection (UVP) and thermal shutdown (OTP). It also has UVLO for input rail and internal soft-start ramp. The SiP12109 is available in lead (Pb)-free power enhanced 3 mm x 3 mm QFN-16 package.

  • Maximum load - 4 A
  • Supports single supply 4.5 V to 15 V input voltage
  • High-performance integrated FETs
  • H/S at 45 mΩ, L/S at 26 mΩ
  • Advanced current-mode COT control loop
    • Ultra-fast transient response
    • Excellent line / load regulation
    • All ceramic solution (No ESR)
    • Power-save-mode at light load with advanced ripple control
    • Simple compensation (one R + one C)
    • Soft-start, output tracking, output drop function
    • Programmable switching frequency, up to 1.5 MHz
  • Full protection set: OVP, OCP, UVP, OTP, SCP
  • Vishay PowerCAD Simulator available
    • Free online simulation tool for microBUCK® DC/DC family
    • DC, transient, and start-up simulation
    • Efficiency analysis and optimization
    • Online component ordering and FAE support
Applications / Market Segments
  • Embedded applications powering
  • Network processors, DSPs, FPGAs, and ASICs
  • Industrial PCs, storage (SSD PCIE interface), ePOS
  • Distributed power systems
  • Home entertainment (TV and set-top boxes)
  • IP cameras
  • Servers, workstations, and storage
  • General purpose 5 V and 12 V rail input applications
Typical Application Circuit
Typical Application Circuit
Absolute Maximum Ratings
Absolute Maximum Ratings
Functional Block Diagram
Functional Block Diagram
Pin Configuration
Pin Configuration
  • Vishay Semiconductors