Global Mixed-mode Technology Inc. AT1380A Switching Regulator Controller for LCD Bias Features General Description The AT1380A is a single-channel PWM control IC for DC/DC conversion with soft start function and short circuit detection. Adjustable soft start is programmed with an external capacitor on SCP pin. The AT1380A is ideal for up, down and fly-back conversion. 2.5 to 15 V supply voltage operating range. Low current consumption: 6 mA in operation, 1μA or less in stand-by . 20 kHz to 1 MHz operation frequency range. Provides a fixed output current with minimal supply voltage fluctuations by using an external resistor to set the output current. Totem-pole output. Built-in soft start circuit. Built-in timer-latch short circuit detection and protection circuit (SCP). Applications LCD Displays PDAs Digital Still Cameras Ordering Information Part number Package Marking AT1380AS SOP8 AT1380AS AT1380AS_GRE SOP8, Green AT1380AS, Date Code with one bottom line REMARK AT1380AP TSSOP8 AT1380AP OBSOLETE AT1380AP_GRE TSSOP8, Green AT1380AP, Date Code with one bottom line OBSOLETE Pin configuration TEL: 886-3-5788833 http://www.gmt.com.tw Ver: 1.3 Apr 08, 2011 1