L5988

www.DataSheet4U.com L5988 4A step-down switching regulator with synchronous rectification Preliminary Data Features ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ 4A DC output current 2.9V to 18V input voltage Output voltage adjustable from 0.6V 400KHz switching frequency, programmable up to 1MHz Soft-start and inhibit 1.8V ± 2% reference voltage Low dropout operation: 100% duty cycle Voltage feed-forward Zero load current operation Sink current capability Over current, over voltage and thermal protection HTSSOP16 package ■ ■ ■ HTSSOP16 Applications ■ Consumer: – STB, DVD, DVD recorder, TV, VCR, Car audio, LCD monitors Networking: – XDSL, Modems, DC-DC modules Computer: – Optical storage, Hard disk drive, Printers, Audio/Graphic cards Industrial: – Chargers, car battery, DC-DC converters Application circuit Order codes Part Number L5988D L5988DTR August 2006 Package HTSSOP16 HTSSOP16 Rev 3 Packaging Tube Tape and reel 1/10 10 This is preliminary information on a new product now in development or undergoing evaluation. Details are subject to change without notice. www.st.com www.DataSheet4U.com Contents L5988 Contents 1 2 3 4 5 6 Technical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Pin connections and functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Electrical characteristics . . . . . . . . . . ...