LC2633CS8TR

LC2633 28V, 3A, 500KHz Synchronous Step-Down DC/DC Converter DESCRIPTION FEATURES The LC2633 is a fully integrated synchronous rectified step-down converter that provides wide 4.2V to 28V input voltage range and 3A continuous load current capability. The LC2633 can operate at PFM mode to achieve high efficiency and reduce power loss at light load. In shutdown mode, the Max supply current is about 3μA.     The LC2633 protection function includes cycle-bycycle current limit, UVLO and thermal shutdown. Besides, internal soft-start prevents inrush current at fast power-on. This device uses slope compensated current mode control which provides fast load transient response. Internal loop compensation function reduces the external compensator components and simplifies the design process. The LC2633 requires a minimum number of readily available standard external components and is available in ESOP-8 (Exposed Pad) package and provides good thermal conductance. PIN OUT & MARKING BST SW GND APPLICATIONS     Distributed power system Flat panel television and monitors STB (Set-top-box) Networking, XDSL modem ORDERING INFORMATION PART No. PACKAGE Tape&Reel NC GW LLDYW VIN          Wide input voltage range: 4.2V to 28V 3A output current 0.8V reference voltage Low RDS(ON) integrated power MOSFET (150/90mΩ) 3μA(Max) shutdown current Integrated internal compensation High efficiency at light load Cycle-by-cycle current limit Over-temperature protection with auto recovery Under voltage lockout(UVLO) Hiccup short circuit protection Available in ESOP8 package RoHS compliant EN LC2633CS8TR ESOP-8 2500/Reel NC FB ESOP8 GW: Product Code LL: Lot No. D: Fab code YW: Date code www.leadchip.com.cn 1 Your final power solution LC2633 TYPICAL APPLICATION CIN &COUT use ceramic capacitors application circuit CIN &COUT use electrolytic capacitors application circuit Note: If Vin