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Manufacturer Part #


MIC2920A Series 3.3 V Fixed Output 400 mA SMT LDO Voltage Regulator - SOT-223

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Mfr. Name: Microchip
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Product Specification Section
Microchip MIC2920A-3.3WS-TR - Technical Attributes
Attributes Table
Input Voltage-Min: 2V
Input Voltage-Max: 26V
Output Voltage Fixed: 3.3V
Dropout Voltage-Max: 600mV
Output Current-Max: 400mA
Rated Power: 8.33W
Tolerance (%): ±1%
Operating Temp Range: -65°C to +150°C
Regulator Topology: Fixed
Quiescent Current: 140µA
No. of Outputs: Single
Output Noise: 400µV
Load Regulation (%): 0.3%
Current - Limit: 1200mA
Line Regulation (%): 0.4%
Package Style:  SOT-223 (TO-261-4, SC-73)
Mounting Method: Surface Mount
$Features & Applications
The MIC2920A-3.3WS TR is a 400 mA “bulletproof” efficient voltage regulator with very low dropout voltage and very low quiescent current.

The MIC2920 is available in several configurations and is a fixed regulator offering a logic compatible ON/OFF (shutdown) input and an error flag output. This flag may also be used as a power-on reset signal.


  • High output voltage accuracy
  • Guaranteed 400 mA output
  • Low quiescent current
  • Low dropout voltage
  • Extremely tight load and line regulation
  • Very low temperature coefficient
  • Current and thermal limiting
  • Input withstands –20 V reverse battery and
  • 60 V positive transients
  • Error flag warns of output dropout
  • Logic-controlled electronic shutdown
  • Output programmable from 1.24 V to 26 V (MIC29202/MIC29204)
  • Available in TO-220, TO-220-5, and surface-mount
  • TO-263-5, SOT-223, and SO-8 packages


  • Battery-powered equipment
  • Cellular telephones
  • Laptop, notebook, and palmtop computers
  • PCMCIA VCC and VPP regulation/switching
  • Bar code scanners
  • Automotive electronics
  • SMPS post-regulators
  • Voltage reference
  • High-efficiency linear power supplier
Pricing Section
Global Stock:
Factory Stock:Factory Stock:
Factory Lead Time:
52 Weeks
Minimum Order:
Multiple Of:
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