LM39100S-3.3

The LM39100/1/2 is 1A low-dropout linear voltage regulators that provide low-voltage, high-current output. The LM39100/1/2 offers extremely low dropout (typically 410mV at 1A) and low ground current (typically 12mA at 1A). The LM39100 is a fixed output regulator offered in the SOT-223 package. The LM39101 and LM39102 are fixed and adjustable regulators, respectively, in SOP-8 and TO-252 Packages. The LM39100/1/2 is ideal for PC add-in cards that need to convert from standard 5V to 3.3V, 3.3V to 2.5V or 2.5V to1.8V. A guaranteed maximum dropout voltage of 630mV overall operating conditions allows the LM39100/1/2 to provide2.5V from a supply as low as 3.13V and 1.8V from a supply as low as 2.43V. The LM39100/1/2 is fully protected with over current limiting, thermal shutdown, and reversed-battery protection. Fixed voltages of 5.0V, 3.3V, 2.5V, 1.8V and 1.5V are available on LM39100/1 with adjustable output voltages to 1.24V on LM39102.

Applications

• Battery Powered Equipments
• Motherboards and Graphic Cards
• Microprocessor Power Supplies
• Peripheral Cards
• High Efficiency Linear Regulators
• Battery Chargers

Key features

• Fixed and adjustable output voltages to 1.24V
• 410mV typical dropout at 1A Ideal for 3.0V to 2.5V conversion Ideal for 2.5V to 1.8V or 1.5V conversion
• 1A 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 SOT-223 package
• Moisture Sensitivity Level 3