SP6132H

® SP6132H High Voltage, 300KHz Synchronous PWM Controller FEATURES ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ 3V to 28V Step Down Achieved Using Dual Input 2A to 15A Ouput Capability Highly Integrated Design, Minimal Components UVLO Detects Both VCC and VIN Short Circuit Protection with Auto-Restart On-Board 1.5Ω sink (2Ω source) NFET Drivers Wide BW Amp Allows Type II or III Compensation Programmable Soft Start Fast Transient Response High Efficiency: Greater than 95% Possible A Synchronous Start-Up into a Pre-Charged Output Small 10-Pin MSOP Package VCC 1 GL 2 GND 3 VFB 4 COMP 5 10 BST SP6132H 10 Pin MSOP 9 GH 8 SWN 7 SS 6 UVIN Now Available in Lead Free Packaging DESCRIPTION The SP6132H is a synchronous step-down switching regulator controller optimized for high efficiency. The part is designed to be especially attractive for dual supply, 12V step down with 5V used to power the controller. This lower VCC voltage minimizes power dissipation in the part. The SP6132H is designed to drive a pair of external NFETs using a fixed 300kHz frequency, PWM voltage mode architecture. Protection features include UVLO, thermal shutdown and output short circuit protection. The SP6132H is available in the cost and space saving 10-pin MSOP. TYPICAL APPLICATION CIRCUIT VIN 3.0 - 28V 22µF 22µF FDS7088N3 4 GND VCC 2.7µH @ 12A MBR0530 2.5V 10 A VOUT 4.64k, 1% FDS7088N3 5.11, 1% 47nF 31.6k, 1% 4 SP6132H VCC BST GH SWN SS UVIN GL GND VFB COMP 1µF 47µF 47µF 220pF 10µF 221k, 1% 68.1k, 1% 100k, 1% 0.1...