Multi-Channel DC/DC Step-Down Regulator

Part Number Information
Part #: Price/Availability:
AN30180A-PR Buy Now
AN30181A-VL Buy Now
AN30182A-PB Buy Now
AN30183A-PR Buy Now
AN30185A-VL Buy Now

Panasonic introduces the New AN3018xA Series Multi-Channel DC/DC Step-Down Regulators with Integrated FET and LDO. The New AN3018xA Series parts offer a power management LSI Step-Down DC/DC Regulator (1 to 2ch) that uses Panasonic’s original Hysteretic DC/DC core control system. By employing this system, when the load current changes suddenly, the New AN3018xA Series parts respond at high speed and minimize output voltage changes.

Since it is possible to use capacitors with small capacitance and it is unnecessary to use parts for phase compensation, these IC’s allow for downsizing of set and a reduction in the number of external parts. Output voltages are variable by DAC (0.8 to 3.3 V) and maximum current is up to 1.2 A. This LSI has a LDO circuit which output voltage and can change by DAC (0.9 to 3.3V) and maximum current up to 0.3 A.


  • High-Speed Response
  • Output Voltage Range: 0.8V to 3.3V
  • Input Voltage Range: 2.9V to 5.5V (Can be supported by Panasonic Li-Ion Battery)
  • High Efficiency Over a Wide Load Current Area by DCM (Discontinuous Conductive Mode) Operation at Light Loads, CCM (Continuous Conductive Mode) Operation in Heavy Loads
  • DCM and CCM Can Be Automatically Switched
  • Switching Frequency: 3.0MHz during CCM
  • 100% Duty Operation When Input Voltage Equals Output Voltage
  • I2C Control for ON/OFF and Output Voltage DAC Setting (DC/DC and LDO)
  • 2-Slave Address Selectable
  • Small Size (WLCSP): 1.5mm x 4 mm Square
  • Built-In Under Voltage Lockout (UVLO), Thermal Shut Down (TSD), Output Over-Current Protection (OCP), Short-Circuit Protection (SCP) Functions


  • Home and Portable Devices
  • Mobile Devices
  • Solid State Drives
  • Personal Computers
  • Game Consoles
  • Cameras
  • WLAN
  • Office Automation Equipment
  • Electronic Devices