MIC39301

• 3.0A minimum guaranteed output current
• 500mV maximum dropout voltage over temperature
      Ideal for 3.0V to 2.5V conversion
• 1% initial accuracy
• Low ground current
• Current limiting and Thermal shutdown
• Reversed-battery protection
• Reversed-leakage protection
• Fast transient response
• TO-263 and TO-220 packaging
• TTL/CMOS compatible enable pin (MIC39301 only)
• Error flag output (MIC39301 only)

Supply Voltage (V_IN) ......................................... 20V to +20V
Enable Voltage (V_EN) ........................................................+20V
Storage Temperature (T_S) ....................... ......65 to +150

Lead Temperature (soldering, 5 sec.) ............................. 260
ESD, Note 3

The MIC39300 and MIC39301 are 3.0A low-dropout linear voltage regulators that provide a low voltage, high-current output with a minimum of external components. Utilizing Micrel's proprietary Super beta PNP™ pass element, the MIC39300/1 offers extremely low dropout (typically 400mV at 3.0A) and low ground current (typically 36mA at 3.0A).
The MIC39300/1 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 MIC39300/1 to provide 2.5V from a supply as low as 3V. The MIC39300/1 also has fast transient response for heavy switching applications.
The device requires only 47mF of output capacitance to maintain stability and achieve fast transient response The MIC39300/1 is fully protected with overcurrent limiting, thermal shutdown, reversed-battery protection, reversedleakage protection, and reversed-lead insertion.

The MIC39301 offers a TTL-logic compatible enable pin and an error flag that indicates under voltage and over current conditions. Offered in fixed voltages, the MIC39300/1 comes
in the TO-220 and TO-263 packages and is an ideal upgrade to older, NPN-based linear voltage regulators.