AN30182A

AN30182A 600mA Synchronous DC-DC Step Down Regulator (2ch) 300mA LDO Regulator (6ch) Multi Power Supply (High Efficiency Power LSI) FEATURES z High-Speed Response DC-DC Step Down Regulator Circuit that employs Hysteretic System z DC-DC Step Down Regulator : 2-ch Input voltage Range VBAT :2.5V to 5.5V DVDD : 1.7V to 3.0V Output voltage Range 0.8 V to 2.4 V Up to 600 mA Output Current z LDO Regulator : 6-ch Input voltage Range VBAT :2.5V to 5.5V DVDD : 1.7V to 3.0V Output voltage Range 1.0 V to 3.3 V Up to 300 mA Output Current z I2C control (2-slave address selectable) z 25 pin Wafer Level Chip Size Package (WLCSP) (Size : 2.15 mm × 2.15 mm, 0.4 mm Pitch) DESCRIPTION AN30182A is a multi power supply LSI which has HighSpeed Response DC-DC Step Down Regulators (2-ch) and LDO Regulators (6-ch). By this DC-DC system, when load current charges suddenly, it responds at high speed and minimizes the changes of output voltage. Since it is possible to use capacitors with small capacitance and it is unnecessary to add external parts for system phase compensation, this IC realizes downsizing of set and reducing in the number of external parts. The output DC of each power supply is variable by I2C control. APPLICATIONS Mobile phone, Portable appliance, etc SIMPLIFIED APPLICATION DVDD 0.1µF DDVBAT2 DDVBAT1 VB VIN2 4.7µF 4.7µF 4.7µF 4.7µF SDA SCL ASEL VLDO4 1µF VLDO5 1µF AN30182A LX1 FB1 DDGND1 LX2 FB2 DDGND2 1µH DCDCOUT1 4.7µF DCDCOUT2 1µH 4.7µF VLDO1 1µF VLDO2 1µF VLDO6 VLDO...