LM39302R

The LM39300, LM39301 and LM39302 are 3.0A low-dropout linear voltage regulators that provide a low voltage, high-current output with a minimum of external components. The LM39300/1 offers extremely low dropout (typically 400mV at 3.0A) and low ground current (typically 36mA at 3.0A). The LM39300/1/2 is ideal for PC add-in cards that need to convert from standard 5V or 3.3V down to new, lower core voltages. A guaranteed maximum dropout voltage of 500mV over all operating conditions allows the LM39300/1/2 to provide 2.5V from a supply as low as 3V. The LM39300/1/2 also has fast transient response for heavy switching applications. The device requires only 47uF of output capacitance to maintain stability and achieve fast transient response. The LM39300/1 is fully protected with over current limiting, thermal shutdown, reversed-battery protection, reversed-leakage protection, and reversed-lead insertion. The LM39301 offers a TTL-logic compatible enable pin and an error flag that indicates under voltage and over current conditions. Offered in fixed voltages, the LM39300/1/2 comes in the TO-220 and TO-263 packages and is an ideal upgrade to older, NPN-based linear voltage regulators.

Applications

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

Key features

• Guaranteed Output Current of 3.0A
• Fixed Output Voltage: 1.5V, 1.8V, 2.5V, 3.3V and 5.0V
• 1% initial accuracy
• Low ground current
• Over-Temperature/Over-Current Protection
• Fast transient response
• TTL/CMOS compatible enable pin  LM39301
• Error flag output - LM39301 only
• Available in TO-263 and TO-220 packages
• -40°C to 125°C Junction Temperature Range
• Moisture Sensitivity Level 3