Micrel, Inc. Supplier Page

MIC47050 Voltage Regulators


Micrel's MIC47050 has an NMOS output stage offering very low output impedance


MIC47050 Voltage RegulatorsMicrel's MIC47050 is a high-speed, ultra-low dropout, dual-supply NMOS ULDO™ designed to take advantage of point-of-load applications that use multiple supply rails to generate a low-voltage, high-current power supply. The MIC47050 can source 500mA of output current while only requiring a 1μF ceramic output capacitor for stability. A 1.5% output voltage accuracy, low dropout voltage (44mV @ 500mA), and low ground current make this device ideally suited for mobile and point-of-load applications.

The MIC47050 has an NMOS output stage offering very low output impedance. The NMOS output stage makes for the unique ability to respond very quickly to sudden load changes such as those required by a microprocessor, DSP, or FPGA. The MIC47050 consumes little quiescent current and therefore, can be used for driving the core voltages of mobile processors post regulating a core DC/DC converter in any processor.

Features
  • Voltage range
    • Input voltage: 1.0V to 3.6V
    • Bias voltage: 2.3V to 5.5V
  • 0.4V to 2.0V output voltage range
  • Low dropout voltage of 44mV at 500mA
  • ±1.5% initial output voltage accuracy
  • High bandwidth – very fast transient response
  • Stable with a 1μF ceramic output capacitor
  • Logic level enable input
  • Thermally-enhanced 2mm x 2mm MLF® package
  • Junction temperature range of –40°C to 125°C

Digi-Key P/N Manufacturer P/N Description  
576-3666-1-ND MIC47050-1.2YML IC REG LDO LO VIN 1.2V 6MLF High-Capacitance MLCC Datasheet
576-3667-1-ND MIC47050YML IC REG LDO LO VIN ADJ 6MLF
Available in Tape & Reel (-2-ND), Cut Tape (-1-ND), and custom Digi-Reel® (-6-ND)