Microchip Technology

The MIC5350 is a tiny dual Ultra Low Dropout (ULDO) linear regulator ideally suited for portable electronics due to its low output noise. The MIC5350 integrates two high-performance; 300mA (VOUT1) and 500mA (VOUT2) ULDOs, which provides exceptional thermal characteristics. The MIC5350 is designed to be stable with small ceramic output capacitors thereby reducing required board space and component cost. The combination of extremely low dropout voltage, low output noise, and exceptional thermal package characteristics makes it ideal for powering RF and noise-sensitive circuitry, cellular phone camera modules, imaging sensors for digital still cameras, PDAs, MP3 players, and webcam applications. The MIC5350 ULDO is available in fixed output voltages in which occupies less than half the board area of a single SOT23-6 package.

The MIC5353 is a high performance, single-output, ultra-low LDO (ULDO™) regulator, offering a low total output noise of 30µVrms. The MIC5353 is capable of sourcing 500mA output current and offers high PSRR and low output noise, making it an ideal solution for RF applications. The MIC5353 provides 2% accuracy, extremely low dropout voltage (160mV at 500mA), and low ground current (typically 90µA) making it ideal for battery-operated applications. When disabled, the MIC5353 enters a zero off-mode current state, thereby drawing almost no current.

The MIC5357 is a tiny dual Ultra Low Dropout (ULDO) linear regulator ideally suited for portable electronics due to its low output noise. The MIC5357 provides two independently controlled high performance 500mA LDOs with typical dropout voltage of 130mV at rated load. In addition, the MIC5357 provides a bypass pin to reduce the output noise. The MIC5357 is designed to be stable with small ceramic output capacitors, thereby reducing required board space and component cost. The combination of extremely low dropout voltage, low output noise, and exceptional thermal package characteristics makes it ideal for powering RF and noise-sensitive circuitry, cellular phone camera modules, imaging sensors for digital still cameras, PDAs, MP3 players, and webcam applications. The MIC5357 ULDO is available in fixed output voltages in the small 8-pin ePad MSOP package.

The MIC5363/4 is an advanced, 300mA LDO ideal for powering general purpose portable devices requiring a high power supply rejection ratio (PSRR). The MIC5363/4 is designed to reject input noise and provide a low output noise regulator with fast transient response to respond to any load change quickly. The MIC5364 also incorporates an active discharge feature that switches a 30Ω NFET from VOUT to GND to discharge output capacitors when the part is disabled.

The MIC5365/6 is an advanced general purpose linear regulator offering high power supply rejection (PSRR) in an ultra-small 1mm x 1mm package. The MIC5366 includes an auto-discharge feature that is activated when the enable pin is low. The MIC5365/6 is capable of sourcing 150mA output current and offers high PSRR, making it a great solution for any portable electronic application. Ideal for battery-powered applications, the MIC5365/6 offers 2% initial accuracy, low dropout voltage (180mV at 150mA), and low ground current (typically 32µA). The MIC5365/6 can also be put into a zero off-mode current state, drawing virtually no current when disabled. The MIC5365/6 is available in several advanced packages, occupying only 1mm2 of PCB area, a 75% reduction in board area compared to SC-70. It is also available in an SC-70-5 package. The MIC5365/6 has an operating junction temperature range of - 40°C to 125°C.

The MIC5367/8 is an advanced, general purpose linear regulator offering high power supply rejection (PSRR) in an ultra-small 1.6mm x 1.6mm package. The MIC5368 includes an auto-discharge feature that is activated when the enable pin is low. The MIC5367/8 is capable of sourcing 200mA peak (150mA continous) output current and offers high PSRR, making it an ideal solution for any portable electronic application. Great for battery-powered applications, the MIC5367/8 offers 2% initial accuracy, low dropout voltage (180mV at 150mA), and low ground current (typically 29µA). The MIC5367/8 can also be put into a zero off-mode current state, drawing virtually no current when disabled. The MIC5367/8 has an operating junction temperature range of - 40°C to 125°C.