Microchip Debuts TC1301A/B and TC1302A/B LDOs

Microchip Technology Inc. (Chandler, AZ) announced a dual CMOS low-dropout regulator (LDO) with an optional microcontroller reset function. Applications for the TC1301A/B and TC1302A/B include cellular phones, personal digital assistants, wireless local area networks, portable computing and communications applications.

The TC1301A/B integrates two LDOs (150mA and 300mA) and a microcontroller reset function, and the TC1302A/B integrates two LDOs. By combining the parts into one device, the TC1301A/B and TC1302A/B require fewer passive and discrete components, which reduces the amount of board real estate and lowers the overall project cost. Additional features for the TC1301A/B and TC1302A/B include an over-current limit and over-temperature protection. In addition, the device features low crosstalk between the voltage-output channels, meaning less noise coupling. The dropout voltage for the devices is as low as 104mV at 300mA; the supply current is as low as 103mA.

The TC1301A/B and TC1302A/B are available in a small DFN package that has good power dissipation characteristics at a small footprint. Pricing for the TC1301A/B in 1,000-unit quantities is $1.10 for the eight-pin MSOP or $1.15 DFN package. Pricing for the TC1302A/B in 1,000-unit quantities is $1.05 for the eight-pin MSOP or $1.10 DFN package. Samples and volume quantities are now available.