Description & Applications | PWM/PFM CONTROL STEP-UP SWITCHING REGULATOR • Low voltage operation: 0.9 V (IOUT = 1mA) •Low current consumption •During operation: 17.2µA (VOUT = 3 V, 50 kHz) •During shutdown : 0.5µA (max.) • Duty ratio:Built-in PWM/PFM control circuit • External parts: coil, diode, and capacitor only (a transistor is needed for the S-8327 Series.) • Output voltage: accuracy of ±2.4% • Soft start function: 6 msec (typ.) •Shutdown function • External transistor type is available (S-8327 Series) •SOT-23-5 small plastic package • SOT-23-3 small plastic package • SOT-89-3 miniature power molded plastic package •Step-down and voltage-inverting type are available. •Power supplies for portable equipment such as pagers, handy calculators, and remote controllers •Constant voltage power supplies for cameras,video equipment, and communications equipment •Power supply for microcomputers |