SiP12109 www.vishay.com Vishay Siliconix 4 A, 4.5 V to 15 V Input Synchronous Buck Regulator FEATURES 4.5 V to 15 V input voltage Adjustable output voltage down to 0.6 V 4 A continuous output current Selectable switching frequency from 400 kHz to 1.5 MHz with an external resistor 95 % peak efficiency Stable with any capacitor. No external ESR network required Ultrafast transient response DESCRIPTION Power saving scheme for increased light load efficiency The SiP12109 is a high frequency current-mode constant 1 % accuracy of V setting OUT on-time (CM-COT) synchronous buck regulator with integrated high-side and low-side power MOSFETs. Its Cycle-by-cycle current limit power stage is capable of supplying 4 A continuous current Fully protected with OTP, SCP, UVP, OVP at 1.5 MHz switching frequency. This regulator produces an P indicator GOOD adjustable output voltage down to 0.6 V from 4.5 V to 15 V -40 C to +125 C operating junction temperature input rail to accommodate a variety of applications, including computing, consumer electronics, telecom, and Output voltage tracking industrial. Material categorization: for definitions of compliance SiP12109s CM-COT architecture delivers ultra-fast please see www.vishay.com/doc 99912 transient response with minimum output capacitance and tight ripple regulation at very light load. The part is stable APPLICATIONS with any capacitor type and no ESR network is required for Point of load regulation for low-power processors, loop stability. The device also incorporates a power saving network processors, DSPs, FPGAs, and ASICs scheme that significantly increases light load efficiency. Low voltage, distributed power architectures with 5 V The regulator integrates a full protection feature set, or 12 V rails including output overvoltage protection (OVP), output unde r Computing, broadband, networking, LAN/WAN, optical, voltage protection (UVP) and thermal shutdown (OTP). It test and measurement also has UVLO for input rail and internal soft-start ramp. A/V, high density cards, storage, DSL, STB, DVR, DTV, The SiP12109 is available in lead (Pb)-free power enhanced Industrial PC 3 mm x 3 mm QFN16-33G package. TYPICAL APPLICATION CIRCUIT ENABLE POWER GOOD PGOOD EN BOOT INPUT=4.5Vto15V VOUT V IN LX SS V FB V CC COMP P A R GND GND ON Fig. 1 - Typical Application Circuit for SiP12109 S20-0484-Rev. B, 29-Jun-2020 Document Number: 62694 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 91000SiP12109 www.vishay.com Vishay Siliconix ORDERING INFORMATION MARKING PART NUMBER PACKAGE (LINE 2: P/N) SiP12109DMP-T1-GE4 QFN16 3 x 3 2109 SiP12109DB N/A - Note DB means demo board MARKING P/N FYWLL Format: Line 1: dot Line 2: P/N Line 3: Siliconix logo and ESD symbol Line 4: factory code and year code and work week code and LOT code ABSOLUTE MAXIMUM RATINGS ELECTRICAL PARAMETER CONDITIONS LIMIT UNIT V Reference to P -0.3 to 16 IN GND V Reference to A -0.3 to 6 CC GND LX Reference to P -0.3 to 16 GND LX (AC) 100 ns 17 V Boot -0.3 to V + V IN CC A to P -0.3 to 0.3 GND GND All logic inputs Reference to A -0.3 to V + 0.3 GND CC TEMPERATURE Max. operating junction temperature -40 to +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 2 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. S20-0484-Rev. B, 29-Jun-2020 Document Number: 62694 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