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3a Low-Voltage Low-Dropout Regulator

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- 3A minimum guaranteed output current
- 500mV typical dropout at 3A
Ideal for 3.0V to 2.5V conversion
Ideal for 2.5V to 1.8V or 1.5V conversion
- 1% initial accuracy
- Low ground current
- Current limiting and thermal shutdown
- Reversed-battery protection
- Reversed-leakage protection
- Fast transient response
- TTL/CMOS compatible enable pin => LM39301
- Error flag output - LM39301 only
- Adjustable version - LM39302 only
- TO-263 and TO-220 packaging
- Moisture Sensitivity Level 3





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 pro-vide 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 47F of output capacitance to maintain stability and achieve fast transient responseThe 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 comesin the TO-220 and TO-263 packages and is an ideal upgrade to older, NPN-based linear voltage regulators.


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