Microchip | MIC49150-0.9WR-TR

The MIC49150-0.9WR TR is a high-bandwidth, low-dropout, 1.5 A voltage regulator ideal for powering core voltages of low-power microprocessors. The MIC49150 implements a dual supply configuration allowing for very low output impedance and very fast transient response.

The MIC49150 requires a bias input supply and a main input supply, allowing for ultra-low input voltages on the main supply rail. The MIC49150 requires a minimum of output capacitance for stability, working optimally with small ceramic capacitors.  The MIC49150 is available in an 8-pin power MSOP package and a 5-pin S-Pak. Its operating temperature range is –40°C to +125°C.

Key Features:

• Input Voltage Range:
• VIN: 1.4 V to 6.5 V
• VBIAS: 3.0 V to 6.5 V
• Stable with 1 µF ceramic capacitor
• ±1% initial tolerance
• Maximum dropout voltage (VIN-VOUT) of 500 mV over temperature
• Adjustable output voltage down to 0.9 V
• Ultra fast transient response (Up to 10 MHz bandwidth)
• Excellent line and load regulation specifications
• Logic controlled shutdown option
• Thermal shutdown and current limit protection
• Power MSO-8 and S-Pak packages
• Junction temperature range: –40°C to 125°C

Applications:

• Graphics processors
• PC Add-In Cards
• Microprocessor core voltage supply
• Low voltage digital ICs
• High Efficiency Linear power supplies
• SMPS post regulators