SiP12117 SiP12117 www.vishay.com Vishay Siliconix 3 A Current Mode Constant On-Time Synchronous Buck Regulator FEATURES 4.5 V to 15 V input voltage Adjustable output voltage down to 0.6 V 3 A continuous output current Integrated compensation 600 kHz switching frequency Ultrafast transient response < 5 A typical shutdown current DESCRIPTION Cycle by cycle current limit The SiP12117 is a high frequency current-mode constant Power good function on-time (CM-COT) synchronous buck regulator with Fixed soft start: 2.9 ms, typ. integrated high side and low side power MOSFETs. Its Material categorization: for definitions of compliance power stage is capable of supplying up to 3 A continuous please see www.vishay.com/doc 99912 current at 600 kHz switching frequency. This regulator produces an adjustable output voltage down to 0.6 V from APPLICATIONS 4.5 V to 15 V input rail to accommodate a variety of Graphics cards applications, including consumer electronics, computing , telecom, and industrial. Set-top-box SiP12117s CM-COT architecture delivers ultrafast transient LCD TV response and low ripple over the full load range with Notebook computers minimum output capacitance and no ESR requirements. HDD / SSD The device features a built in soft start of 2.9 ms and integrated compensation. The device also includes cycle-by-cycle current limit, over temperature protection (OTP) and input under voltage lockout (UVLO). The SiP12117 is available in lead (Pb)-free 3 mm x 3 mm DFN10-33C lead package with thermal pad. TYPICAL APPLICATION CIRCUIT AND PACKAGE OPTIONS Enable Power good Input P EN BOOT GOOD 4.5 V to 15 V V OUT V IN LX V CC SiP12117 FB P GND Fig. 1 - Typical Application Circuit for SiP12117 S20-0484-Rev. C, 29-Jun-2020 Document Number: 62973 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 91000SiP12117 www.vishay.com Vishay Siliconix PIN CONFIGURATION EN 10 1 FB 2 V P 9 CC GOOD A GND BOOT 8 3 V IN pad 4 P LX 7 GND 5 P LX 6 GND Fig. 2 - SiP12117 Pin Configuration (Bottom View) PIN CONFIGURATION PIN NUMBER NAME FUNCTION Feedback voltage 0.6 V (typ.) input. Use a resistor divider between V and thermal pad to set the OUT 1FB output voltage 2V Internal regulator output CC 3V Input supply voltage for power MOS and regulator. V = 4.5 V to 15 V IN IN 4, 5 P Power ground GND 6, 7 LX Switching node, inductor connection point Bootstrap pin - connect a capacitor of at least 100 nF from BOOT to LX to develop the floating supply 8BOOT for the high side gate driver 9P Power good output. Open drain GOOD 10 EN Enable input. Pull enable above 1.5 V to enable and below 0.4 V to disable the part. Do not float this pin Pad A Analog ground. The pad also improves thermal performance GND ORDERING INFORMATION PART NUMBER PACKAGE MARKING (LINE 1: P/N) SiP12117DMP-T1-GE4 DFN10 3 x 3 2117 SiP12117DB Reference board MARKING P/N FYWLL Format: Line 1: Dot Line 2: P/N Line 3: Siliconix logo + ESD dymbol Line 4: Factory code + year code + work week code + LOT code S20-0484-Rev. C, 29-Jun-2020 Document Number: 62973 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