L5988D

www.DataSheet4U.com L5988D 4 A continuous (more than 5 A pulsed) step-down switching regulator with synchronous rectification Preliminary Data Features I I I I I I I 4 A output current (more than 5 pulsed) Operating input voltage from 2.9 V to 18 V External 1.8 V ± 2 % reference voltage Output voltage from 0.6 to input voltage MLCC compatible 200 ns TON Programmable UVLO matches 3.3 V, 5 V and 12 V bus FSW programmable up to 1 MHz Voltage feed-forward Zero-load current operation Programmable current limit on both switches Programmable sink current capability Pre-bias start up capability Thermal shutdown I I HTSSOP 16 Applications I I I I I I I I Consumer: STB, DVD, LCD TV, VCR, car radio, LCD monitors Networking: XDSL, modems, routers and switches Computer and peripherals: printers, audio / graphic cards, optical storage, hard disk drive Industrial: DC-DC modules, factory automation I Figure 1. Test application circuit January 2009 Rev 1 1/53 www.st.com 53 This is preliminary information on a new product now in development or undergoing evaluation. Details are subject to change without notice. www.DataSheet4U.com Contents L5988D Contents 1 2 3 4 5 Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Pin function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ....