MIC39301 Series

3.0A 1.0% Fixed Voltage LDO + Flag + Shutdown

Catalog

3.0A 1.0% Fixed Voltage LDO + Flag + Shutdown

Part	Mounting Type	Output Configuration	Control Features	Voltage - Output (Min/Fixed)	Supplier Device Package	Number of Regulators	Output Type	Operating Temperature [Max]	Operating Temperature [Min]	Voltage - Input (Max) [Max]	Voltage Dropout (Max) [Max]	Current - Output	Package / Case	Protection Features
Microchip Technology MIC39301-2.5WU-TR	Surface Mount	Positive	Enable	2.5 V	TO-263-5	1	1.81 mOhm	125 °C	-40 °C	16 V	0.55 V	3 A	D2PAK (5 Leads + Tab) TO-263-6 TO-263BA	Over Current Over Temperature Reverse Polarity
Microchip Technology MIC39301-1.65BU TR	Surface Mount	Positive	Enable	1.65 V	TO-263-5	1	1.81 mOhm	125 °C	-40 °C	16 V	0.55 V	3 A	D2PAK (5 Leads + Tab) TO-263-6 TO-263BA	Over Current Over Temperature Reverse Polarity
Microchip Technology MIC39301-2.5BU	Surface Mount	Positive	Enable	2.5 V	TO-263-5	1	1.81 mOhm	125 °C	-40 °C	16 V	0.55 V	3 A	D2PAK (5 Leads + Tab) TO-263-6 TO-263BA	Over Current Over Temperature Reverse Polarity

Catalog

3.0A 1.0% Fixed Voltage LDO + Flag + Shutdown

Key Features

• * 3.0A minimum guaranteed output current

• * 550mV maximum dropout voltage over temperature

• * Ideal for 3.0V to 2.5V conversion

• * Ideal for 2.5V to 1.8V conversion

• * 1% initial accuracy

• * Low ground current

• * Current limiting and thermal shutdown

• * Reverse battery protection

• * Reverse leakage protection

• * Fast transient response

• * TO-263 (D2Pak) and TO-220 packaging

• * TTL/CMOS compatible enable pin (MIC39301/2 only)

• * Error flag output (MIC39301 only)

• * Adjustable output (MIC39302 only)

Description

The MIC39300, MIC39301, and MIC39302 are 3.0A low-dropout linear voltage regulators that provide a low voltage, high-current output with a minimum of external components. Utilizing proprietary Super βeta PNP® pass element, the MIC39300/1/2 offers extremely low dropout (typically 385mV at 3.0A) and low ground current (typically 36mA at 3.0A). The MIC39300/1/2 is ideal for PC add-in cards that need to convert from standard 3.3V to 2.5V, or 2.5V to 1.8V. A guaranteed maximum dropout voltage of 500mV over all operating conditions allows the MIC39300/1/2 to provide 2.5V from a supply as low as 3V, and 1.8V from a supply as low as 2.5V. The MIC39300/1/2 also has fast transient response for heavy switching applications. The device requires only 47µF of output capacitance to maintain stability and achieve fast transient response. The MIC39300/1/2 is fully protected with overcurrent limiting, thermal shutdown, reverse battery protection, reverse leakage protection, and reverse 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 (D2Pak) packages and is an ideal upgrade to older, NPN-based linear voltage regulators. The MIC39302 adjustable option allows programming the output voltage anywhere between 1.24V and 15.5V and is offered in a 5-Pin, TO-263 (D2Pak) package.