| Description & Applications | 400mA, 1MHz Step-Down DC-DC Converter • VIN Range: 2.7V to 5.5V • Maximum Output: 18V @ 100mA • True Load Disconnect • Dynamic Voltage Control Options • Hysteretic Control — No External Compensation Components — Excellent Load Transient Response — High Efficiency at Light Load • Up to 2MHz Switching Frequency • Ultra-Small Inductor and Capacitors • Integrated Low RDS(ON) MOSFET Switches • Up to 85% Efficiency • <1µA Shutdown Current • Integrated Soft Start • Two Turn-On Time Options — AAT1230: TSS= 0.35ms — AAT1230-1: TSS= 3.5ms • Cycle-by-Cycle Current Limit • Short-Circuit, Over-Temperature Protection • Available in TSOPJW-12 or TDFN34-16 Package • -40°C to +85°C Temperature Range • CCD Bias Circuit • Digital Still Cameras • LCD Bias Circuit • Mobile Handsets • MP3 Players |