SiP12108, SiP12108A www.vishay.com Vishay Siliconix 2.8 V to 5.5 V Input 5 A Synchronous Buck Regulator FEATURES 2.8 V to 5.5 V input voltage Adjustable output voltage down to 0.6 V 5 A continuous output current Programmable switching frequency up to 4 MHz 95 % peak efficiency Stable with any capacitor. No external ESR network required. Ultrafast transient response Selectable power saving (PSM) mode or forced DESCRIPTION continuous mode 1 % accuracy of V setting The SiP12108 is a high frequency current-mode constant OUT on-time (CM-COT) synchronous buck regulator with Pulse-by-pulse current limit integrated high-side and low-side power MOSFETs. Its Scalable with SiP12107 - 3 A power stage is capable of supplying 5 A continuous current SiP12108 is fully protected with OTP, SCP, UVP, OVP at 4 MHz switching frequency. This regulator produces an SiP12108A is fully protected with OTP, SCP, OVP adjustable output voltage down to 0.6 V from 2.8 V to 5.5 V P indicator input rail to accommodate a variety of applications, GOOD including computing, consumer electronics, telecom, and PowerCAD Simulation software available at industrial. vishay.transim.com/login.aspx SiP12108s CM-COT architecture delivers ultra-fast Material categorization: for definitions of compliance transient response with minimum output capacitance and please see www.vishay.com/doc 99912 tight ripple regulation at very light load. The part is stable with any capacitor type and no ESR network is required for APPLICATIONS loop stability. The device also incorporates a power saving Point of load regulation for low-power processors, scheme that significantly increases light load efficiency. network processors, DSPs, FPGAs, and ASICs The SiP12108 integrates a full protection feature set, Low voltage, distributed power architectures with including output overvoltage protection (OVP), output unde r 3.3 V or 5 V rails voltage protection (UVP) and thermal shutdown (OTP). The Computing, broadband, networking, LAN/WAN, optical, A version of the device, SiP12108A, does not have the test and measurement UVP feature. They also incorporate UVLO for the input rail A/V, high density cards, storage, DSL, STB, DVR, DTV, and an internal soft-start ramp. Industrial PC The SiP12108 is available in lead (Pb)-free power enhanced 3 mm x 3 mm QFN16-33G package. TYPICAL APPLICATION CIRCUIT POWER SAVE MODE ENABLE POWER GOOD P EN AUTO V INPUT = 2.8 V to 5.5 V GOOD OUT V LX IN V OUT V FB AV IN GMO P A R GND GND ON Fig. 1 - Typical Application Circuit for SiP12108 S20-0484-Rev. C, 29-Jun-2020 Document Number: 62699 1 For technical questions, contact: powerictechsupport vishay.com THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT www.vishay.com/doc 91000SiP12108, SiP12108A www.vishay.com Vishay Siliconix ABSOLUTE MAXIMUM RATINGS ELECTRICAL PARAMETER CONDITIONS LIMIT UNIT V Reference to P -0.3 to 6 IN GND AV Reference to A -0.3 to 6 IN GND LX Reference to P -0.3 to 6 V GND A to P -0.3 to 0.3 GND GND All logic inputs Reference to A -0.3 to AV + 0.3 GND IN TEMPERATURE Max. operating junction temperature 150 C Storage temperature -65 to +150 POWER DISSIPATION Junction to ambient thermal impedance 36.3 C/W (R ) thJA Ambient temperature = 25 C 3.4 Maximum power dissipation W Ambient temperature = 100 C 1.3 ESD PROTECTION Electrostatic discharge protection HBM 4 kV Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. RECOMMENDED OPERATING RANGE ELECTRICAL PARAMETER MINIMUM TYPICAL MAXIMUM UNIT V 2.8 - 5.5 IN AV 2.8 - 5.5 IN V LX -1 - 5.5 V 0.6 - 0.85 x V OUT IN Ambient temperature -40 to +85 C S20-0484-Rev. C, 29-Jun-2020 Document Number: 62699 2 For technical questions, contact: powerictechsupport vishay.com THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT www.vishay.com/doc 91000