A7530

AiT Semiconductor Inc. Inc. www.ait-ic.com A7530 350KHz PFM STEP-UP DC-DC CONVERTER INTERNAL SWITCH W/HIGH EFFICIENCY AND LOW NOISE DESCRIPTION A7530 is CMOS-based PFM step-up DC-DC converter. The converter can start up by supply voltage as low as 0.8V input Voltage. Quiescent current drawn from power source is as low as 7uA. All of these features make A7530 be suitable for the portable devices, which are supplied by a single battery to four-cell batteries. To reduce the noise caused by the switch regulator, A7530 is well considerate in circuit design and manufacture. So that the interferer to other circuits by the device is reduced greatly. A7530 integrates stable reference circuits and trimming technology, so it can afford high precision and low temperature-drift coefficient of the output voltage. A7530 can be switch on or off easily by CE pin, to minimize the standby supply current in SOT-25 package. A7530 is available in SOT-25 and SOT-89 packages. FEATURES Deliver 200mA at 3.3V Output Voltage with 1.8V Input Voltage Low start-up voltage(when the output current is 1mA ) 0.8V The converter output voltage can be adjusted from 2.5V~6.0V (In 0.1V step) Output voltage accuracy (±2%) Low temperature-drift coefficient of the output voltage (±100ppm/℃) Only three external components are necessary: An inductor, a Schottky diode and an output filter capacitor High power conversion efficiency (85%) Low quiescent current drawn from power source (<7uA) Available in SOT-25 and SOT-8...