MIC49300 Series

Dual Supply, Low Voltage 3.0A LDO

Catalog

Dual Supply, Low Voltage 3.0A LDO

Part	Supplier Device Package	Output Configuration	Number of Regulators	Voltage Dropout (Max) [Max]	Control Features	Current - Output	Protection Features	Operating Temperature [Max]	Operating Temperature [Min]	Mounting Type	Output Type	Voltage - Output (Min/Fixed)	Package / Case	Voltage - Input (Max) [Max]	Voltage - Output (Max)	Output Type
Microchip Technology MIC49300-1.5BR TR	5-SPAK	Positive	1	0.4 V	Enable	3 A	Over Current Over Temperature	125 °C	-40 °C	Surface Mount	1.81 mOhm	1.5 V	SPAK-5 (5 Leads + Tab)	6.5 V
Microchip Technology MIC49300-0.9WR-TR	5-SPAK	Positive	1	0.4 V	Enable	3 A	Over Current Over Temperature	125 °C	-40 °C	Surface Mount	1.81 mOhm	0.9 V	SPAK-5 (5 Leads + Tab)	6.5 V
Microchip Technology MIC49300-0.9WR	5-SPAK S-PAK-5	Positive	1	0.4 V	Enable	3 A	Over Current Over Temperature	125 °C	-40 °C	Surface Mount	1.81 mOhm	0.9 V	SPAK-5 (5 Leads + Tab)	6.5 V
Microchip Technology MIC49300WR	5-SPAK	Positive	1	0.4 V	Enable	3 A	Over Current Over Temperature	125 °C	-40 °C	Surface Mount		0.9 V	SPAK-5 (5 Leads + Tab)	6.5 V	5 V	Adjustable
Microchip Technology MIC49300WR-TR	5-SPAK	Positive	1	0.4 V	Enable	3 A	Over Current Over Temperature	125 °C	-40 °C	Surface Mount		0.9 V	SPAK-5 (5 Leads + Tab)	6.5 V	5 V	Adjustable
Microchip Technology MIC49300-1.2BR TR	5-SPAK	Positive	1	0.4 V	Enable	3 A	Over Current Over Temperature	125 °C	-40 °C	Surface Mount	1.81 mOhm	1.2 V	SPAK-5 (5 Leads + Tab)	6.5 V
Microchip Technology MIC49300-1.5WR	5-SPAK S-PAK-5	Positive	1	0.4 V	Enable	3 A	Over Current Over Temperature	125 °C	-40 °C	Surface Mount	1.81 mOhm	1.5 V	SPAK-5 (5 Leads + Tab)	6.5 V
Microchip Technology MIC49300-1.2WR-TR	5-SPAK	Positive	1	0.4 V	Enable	3 A	Over Current Over Temperature	125 °C	-40 °C	Surface Mount	1.81 mOhm	1.2 V	SPAK-5 (5 Leads + Tab)	6.5 V
Microchip Technology MIC49300BU	TO-263-5	Positive	1	0.4 V	Enable	3 A	Over Current Over Temperature	125 °C	-40 °C	Surface Mount		0.9 V	D2PAK (5 Leads + Tab) TO-263-6 TO-263BA	6.5 V	5 V	Adjustable
Microchip Technology MIC49300-1.2BR	5-SPAK	Positive	1	0.4 V	Enable	3 A	Over Current Over Temperature	125 °C	-40 °C	Surface Mount	1.81 mOhm	1.2 V	SPAK-5 (5 Leads + Tab)	6.5 V

Catalog

Dual Supply, Low Voltage 3.0A LDO

Key Features

• * VIN: 1.4V to 6.5V

• * VBIAS: 3.0V to 6.5V

• * Stable with 1µF ceramic capacitor

• * ±1% initial tolerance

• * Maximum dropout voltage (VIN-VOUT) of 500mV over temperature

• * Adjustable output voltage down to 0.9V

• * Ultra-fast transient response (Up to 10MHz bandwidth)

• * Excellent line and load regulation specifications

• * Logic controlled shutdown option

• * Thermal shutdown and current limit protection

• * Power S-Pak package

• * Junction temperature range: -40°C to +125°C

Description

The MIC49300 is a high-bandwidth, low-dropout, 3.0A voltage regulator ideal for powering core voltages of low-power microprocessors. The MIC49300 implements a dual supply configuration allowing for very low output impedance and very fast transient response. The MIC49300 requires a bias input supply and a main input supply, allowing for ultra-low input voltages on the main supply rail. The input supply operates from 1.4V to 6.5V and the bias supply requires between 3V and 6.5V for proper operation. The MIC49300 offers fixed output voltages from 0.9V to 1.8V and adjustable output voltages down to 0.9V. The MIC49300 requires a minimum of output capacitance for stability, working optimally with small ceramic capacitors. The MIC49300 is available in a 5-pin S-Pak. It operates over a junction temperature range of -40°C to +125°C.