Catalyst Semiconductor Launches 500mA Low Dropout (LDO) Regulator In Thin SOT-23 Package

Santa Clara, CA - Catalyst Semiconductor, Inc. a supplier of analog, mixed-signal and non-volatile memory semiconductors launched the first device in its new line of low dropout (LDO) regulators. The CAT6219 LDO regulator is one of only a few devices available that provides a 500mA peak output current in a tiny, five-lead, 1mm profile thin SOT-23 package.

An alternative to Micrel's MIC5219 and MIC5319 LDO regulators, the CAT6219 offers a lower quiescent current combined with a low typical dropout voltage of 300mV at a 500mA load. Additionally, an external bypass capacitor reduces overall output noise making the device ideal for low noise applications. Many LDOs incorporating a bypass capacitor pay the penalty of slow "start up." However, Catalyst's device is designed with a "quick start" feature, which ensures a fast turn-on time of less than 150us and further optimizes the CAT6219 for low-power applications.

The CAT6219 is designed to eliminate battery drain when not in use by entering a "zero" current shutdown mode. Additionally, the device offers a low typical quiescent current of 55uA and protection against short-circuit and thermal overload fault conditions.

Product Features

• Guaranteed 500mA peak output current
• Low dropout voltage of 300mV typical at 500mA
• Alternative to Micrel MIC5219 and MIC5319
• External 10nF bypass capacitor for low noise
• "Quick-start" feature for fast turn-on time (<150us)
• Current limit and thermal protection
• Packaging: 5-lead thin SOT-23 (1mm height)

SOURCE: Catalyst Semiconductor