Micrel, Inc. Supplier Page
  • Description
  • Features
  • Applications
  • Specifications

Introducing the MAQ5280 Ultra Wide VIN, Automotive LDO

Micrel ImageThe MAQ5280 is a high performance low dropout regulator, offering a very low noise output with a very wide input voltage operating range, up to 120V DC input voltage.

Ideal for high input voltage applications such as automotive and telecom, the MAQ5280 offers 2% initial accuracy, extremely high power supply rejection ratio (PSRR > 80dB) and low ground current (typically 31µA). The MAQ5280 can also be put into a zero-off-mode current state, drawing a minuscule amount of current when disabled.

The MAQ5280 has a very wide input voltage range, with a DC rating from –24V to 120V. This wide input range covers the automotive load dump range and the MAQ5280 is optimized for line transient response, making it ideal for harsh environment applications. In addition, the MAQ5280 is AEC-Q100 qualified.

The MAQ5280 has an operating junction temperature range of –40°C to +125°C and is available in an adjustable output voltage version in an 8-pin EPAD SOIC, lead-free (RoHS compliant) package.
  • Wide Input Voltage Range: 4.5V to 120V DC
  • Very Low Quiescent Current: 31 µA typical
  • 25mA guaranteed output current
  • Adjustable Output from 1.215V to 5V
  • DC voltage protection down to –24V
  • Ability to withstand up to +120V DC at the input
  • Stable with ceramic output capacitors
  • Ultra High PSRR > 80dB for RF Applications
  • High output accuracy
    • ± 2% initial accuracy
    • ± 3% over temperature ( –40°C to +125°C)
  • Thermal shutdown and current limit protection
  • Thermally efficient 8-pin EPAD SOIC package
  • AEC-Q100 qualified
    		•  Click to View Pin Configuration
    Click image for pin configuration
    DatasheetRoHS Compliant
  • Automotive Systems
  • Industrial Applications
  • Remote Keyless Entry Power Supply
  • Telecom Applications
  • Off-line Power Supplies
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    Digi-Key P/N
    Micrel P/N
    Voltage
    Temp. Range
    Package
    Lead Finish
    MAQ5280YME
    Adj.
    –40°C to +125°C
    8-Pin EPAD SOIC
    Pb-Free

    Absolute Maximum Ratings(1) Operating Ratings(2)
    Supply Voltage (VIN) .................... –24V to +120V Supply Voltage (VIN) ......... 4.5V to +120V
    Enable Voltage (VEN) ..................... –1V to +120V Enable Voltage (VEN) ........... 0V to +120V
    Power Dissipation (PD) ........... Internally Limited(3) Junction Temp. (TJ) ........ –40°C to +125°C
    Max Reflow Temp.
    (per IPC/JEDEC 20°C) ................................. 260°C    		 Junction Thermal Resistance
    EPAD SOIC-8 (ΘJA) ...................... 41°C/W
    Storage Temp. (TS) ................... –65°C to +150°C  
    ESD Rating(4) ................................................. 2kV  
     
    Notes:
    1. Exceeding the absolute maximum rating my damage the device.
    2. The device is not guaranteed to function outside its operating rating.
    3. The maximum allowable power dissipation of any TA (ambient temperature) is PD(MAX) — TA) / ΘJA. Exceeding maximum allowable power dissipation will result in excessive die temperature, and the regulator will go into thermal shutdown.
    4. Devices are ESD sensitive. Handling precautions recommended. Human body model, 1.5Ω


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