| Description & Applications | PWM Step-up DC-DC Controller • High Efficiency 86% at IO = 200 mA, VIN = 2.0 V, VOUT = 3.0 V 88% at IO = 400 mA, VIN = 3.0 V, VOUT = 5.0 V • Low Start-up Voltage of 0.9 V typical at IO = 1.0 mA • Operation Down to 0.6 V • Low Conversion Ripple • High Output Current up to 1000 mA (3.0 V version at VIN = 2.0 V, L = 10 H, COUT = 220F) • Fixed Frequency Pulse Width Modulation (PWM) at 180 kHz • Chip Enable Pin with On-chip 150 nA Pull-up Current Source • Low Profile and Micro Miniature TSOP-5 Package • Personal Digital Assistant (PDA) • Electronic Games • Portable Audio (MP3) • Digital Still Cameras • Handheld Instruments |