ADPL31610 1.2MHz/2.2MHz Inverting DC/DC Converters

Analog Devices Inc. ADPL31610 1.2MHz/2.2MHz Inverting DC/DC Converters feature a 1A integrated switch, enabling high-current outputs in a small footprint. The ADPL31610A converters switch at 1.2MHz, while the ADPL31610B switches at 2.2MHz that enable the use of tiny, low-cost capacitors and inductors. The ADPL31610 converters operate in a dual-inductor inverting topology that filters both the input and output current. The ADPL31610A can generate -5V at 350mA or -12V at 150mA from a 5V supply, while the ADPL31610B can generate -5V at 300mA using significantly smaller inductors. These converters use small surface-mount capacitors and are available in a low-profile (1mm) SOT-23 ThinSOTTM™ package. Typical applications include disk drive MR head bias, digital camera CCD bias, LCD bias, GaAs FET bias, and a local low-noise/low-impedance negative supply.