Microchip | MIC3975YMM

The MIC3975YMM is a 750 mA low-dropout linear voltage regulators that provide low-voltage,high-current output from an extremely small package.Utilizing Micrel ’s proprietary Super Beta PNP ™ pass element,,the MIC3975 offers extremely low dropout (typically 300 mV at 750 mA)and low ground current (typically 6.5 mA at 750 mA).

The MIC3975 is ideal for PC add-in cards that need to convert from standard 5 V to 3.3 V or 3.0 V,3.3 V to 2.5 V or 2.5 V to 1.8 V or 1.65 V.A guaranteed maximum dropout voltage of 500 mV over all operating conditions allows the MIC3975 to provide 2.5 V from a supply as low as 3.0 V and 1.8 V or 1.65 V from a supply as low as 2.25 V.

The MIC3975 is fully protected with overcurrent limiting, thermal shutdown,and reversed-battery protection.Fixed voltages of 5.0 V,3.3 V,3.0,2.5 V,1.8 V,and 1.65 V are available.An adjustable output voltage option is available for voltages down to 1.24 V.

Key Features :

• Fixed and adjustable output voltages to 1.24 V
• 300 mV typical dropout at 750 mA
• Ideal for 3.0 V to 2.5 V conversion
• Ideal for 2.5 V to 1.8 V or 1.65 V conversion
• Stable with ceramic capacitor
• 750 mA minimum guaranteed output current
• 1%initial accuracy
• Low ground current
• Current limiting and thermal shutdown
• Reversed-battery protection
• Reversed-leakage protection
• Fast transient response
• Low-profile MSOP-8

Applications :

• Fiber optic modules
• LDO linear regulator for PC add-in cards
• PowerPC ™ power supplies
• High-efficiency linear power supplies
• SMPS post regulator
• Multimedia and PC processor supplies
• Battery chargers
• Low-voltage microcontrollers and digital logic