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Manufacturer Part #


MIC5247 Series 1.8 V Fixed Output 150 mA Surface Mount LDO Regulator - SOT-23-5

ECAD Model:
Mfr. Name: Microchip
Standard Pkg:
Date Code: 1811
Product Specification Section
Technical Attributes
Attributes Table
Input Voltage-Min: 2.7V
Input Voltage-Max: 6V
Output Voltage Fixed: 1.8V
Dropout Voltage-Max: 150mV
Output Current-Max: 150mA
Rated Power: 425.53mW
Tolerance (%): ±1%
Operating Temp Range: -40°C to +125°C
Regulator Topology: Fixed
Quiescent Current: 1µA
No. of Outputs: Single
Output Noise: 30µV
Load Regulation (%): 3%
Current - Limit: 300mA
Line Regulation (%): 0.3%
Package Style:  SOT-23-5 (SOT-25)
Mounting Method: Surface Mount
Features & Applications

The MIC5247-1.8YM5 TR is an efficient and precise, low-voltage CMOS voltage regulator optimized for ultra-low noise applications. The MIC5247 offers better than 1% initial accuracy and 85 mA constant ground current over load (typically 85 mA).

The MIC5247 provides a very low-noise output, ideal for RF applications where quiet voltage sources are required. A noise bypass pin is also available for further reduction of output noise. Designed specifically for handheld and battery-powered devices, the MIC5247 provides a logic compatible enable pin. When disabled, power consumption drops nearly to zero.

The MIC5247 also works with low-ESR ceramic capacitors, reducing the amount of board space necessary for power applications, critical in handheld wireless devices. Available in the 2 mm x 2 mm MLF6 leadless package and the IttyBitty® SOT235 package, the MIC5247 also offers a range of fixed output voltages.


  • Ultra-low noise
  • Low-voltage outputs
  • Load independent, ultra-low ground current: 85 mA
  • 150 mA output current
  • Current limiting
  • Thermal shutdown
  • Tight load and line regulation
  • "Zero" off-mode current
  • Stability with low-ESR capacitors
  • Fast transient response
  • Logic-controlled enable input 


  • Cellular phones and pagers
  • Cellular accessories
  • Battery-powered equipment
  • Laptop, notebook, and palmtop computers
  • PCMCIA VCC and VPP regulation/switching
  • Consumer/personal electronics
  • SMPS post-regulator/DC-to-DC modules
  • High-efficiency linear power supplies
Pricing Section
Global Stock:
On Order:
Factory Stock:Factory Stock:
Factory Lead Time:
52 Weeks
Minimum Order:
Multiple Of:
Web Price