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We offer a wide range of high-performance low-dropout (LDO) linear regulators. A low dropout regulator is a voltage regulator that operates with a very small voltage difference between the regulated output voltage and the unregulated input voltage. Our low-dropout linear regulators support specific performance applications where switching voltage regulators are not the obvious choice, including:

  • Low-noise, high-PSRR LDOs where signal integrity is paramount
  • LDOs that withstand high voltages to protect mission critical circuitry from transients and reverse polarity
  • Low-power, tiny LDOs that preserve space and battery life in portable applications.
  • LDOs for digital core supplies where low voltages and high currents dominate.

Additional features such as short-circuit protection and reverse-current blocking make our LDOs the ideal choice when your application calls for performance.


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Fundamentals of Linear Regulators: LDO to SEPIC
14:35 January 09, 2019

Featured Products

MAX25300B 12µVRMS Low Noise 500mA LDO Linear Regulator

The MAX25300A/B are low-noise linear regulators that deliver up to 500mA of output current with ...
  • 1.7V to 5.5V Input Voltage Range
  • 0.6V to 5.3V Output Voltage Range
  • 12µVRMS Output Noise, 10Hz to 100kHz
  • 365µA Operating Supply Current
  • 70dB PSRR at 10kHz
  • 500mA Maximum Output Current
  • ±1% DC Accuracy Over Load, Line, and Temperature
  • 100mV (Max) Dropout at 500mA Load (3.6VIN)
  • < 0.1µA Shutdown Supply Current
  • Stable with 2µF(Min) Output Capacitance
  • Programmable Soft-Start Rate
  • Overcurrent and Overtemperature Protection
  • Output-to-Input Reversed Current Protection
  • POK Output
  • 2mm x 2mm 8-pin TDFN Package
  • AEC-Q100
  • -40°C to 125°C Operating Temperature

MAX25300A 12µVRMS Low Noise 500mA LDO Linear Regulator

The MAX25300A/B are low-noise linear regulators that deliver up to 500mA of output current with ...
  • 1.7V to 5.5V Input Voltage Range
  • 0.6V to 5.3V Output Voltage Range
  • 12µVRMS Output Noise, 10Hz to 100kHz
  • 365µA Operating Supply Current
  • 70dB PSRR at 10kHz
  • 500mA Maximum Output Current
  • ±1% DC Accuracy Over Load, Line, and Temperature
  • 100mV (Max) Dropout at 500mA Load (3.6VIN)
  • < 0.1µA Shutdown Supply Current
  • Stable with 2µF(Min) Output Capacitance
  • Programmable Soft-Start Rate
  • Overcurrent and Overtemperature Protection
  • Output-to-Input Reversed Current Protection
  • POK Output
  • 2mm x 2mm 8-pin TDFN Package
  • AEC-Q100
  • -40°C to 125°C Operating Temperature

MAX25301B 1A Automotive Low-Noise LDO Linear Regulator

The MAX25301A/B are low-noise automotive linear regulators that deliver up to 1A of output curre...
  • 1.7V to 5.5V Input Voltage Range
  • 0.6V to 5.3V Programmable Output Voltage
  • 7µVRMS Output Noise, 10Hz to 100kHz
  • 1200µA Operating Supply Current
  • 70dB PSRR at 10kHz
  • 1A Maximum Output Current
  • ±1% DC Accuracy Over Load, Line, and Temperature
  • 100mV Maximum Dropout at 1A Load
  • < 1µA Shutdown Supply Current
  • Stable with 4µF(min) Output Capacitance
  • Programmable Soft-Start Rate
  • Overcurrent and Overtemperature Protection
  • Output-to-Input Reverse-Current Protection
  • Power-OK Output
  • 3mm x 3mm 10-pin TDFN Package
  • AEC-Q100
  • -40°C to 125°C Operating Temperature
  • MAX25301A 1A Automotive Low-Noise LDO Linear Regulator

    The MAX25301A/B are low-noise automotive linear regulators that deliver up to 1A of output curre...
  • 1.7V to 5.5V Input Voltage Range
  • 0.6V to 5.3V Programmable Output Voltage
  • 7µVRMS Output Noise, 10Hz to 100kHz
  • 1200µA Operating Supply Current
  • 70dB PSRR at 10kHz
  • 1A Maximum Output Current
  • ±1% DC Accuracy Over Load, Line, and Temperature
  • 100mV Maximum Dropout at 1A Load
  • < 1µA Shutdown Supply Current
  • Stable with 4µF(min) Output Capacitance
  • Programmable Soft-Start Rate
  • Overcurrent and Overtemperature Protection
  • Output-to-Input Reverse-Current Protection
  • Power-OK Output
  • 3mm x 3mm 10-pin TDFN Package
  • AEC-Q100
  • -40°C to 125°C Operating Temperature
  • MAX25210 Automotive Ultra Low Quiescent Current Linear Regulator Family

    MAX25210 Automotive Ultra Low Quiescent Current Linear Regulator Family

    The MAX25210 high-voltage linear regulator family is ideal for use in automotive and battery-ope...
    • Enables System Designers to Meet Stringent Module Requirements for 100μA Quiescent Current
      • Low 10µA Quiescent Current
      • Up to 300mA Output-Current Capability (300mA, 200mA, 100mA, and 50mA Variants)
      • User-Selectable Output Voltage (+3.3V or +5V Fixed and +0.6V to +11V Adjustable with External Resistive Divider)
    • Tiny Output Capacitors Reduce Board Space and BOM Cost
      • Stable Operation with 2.2µF Output Capacitor
    • Accurate Active-Low RESET Output with Adjustable Delay Eliminates Need for Separate Reset IC
      • Open-Drain Active-Low RESET Output with Adjustable Delay
      • Fixed-Reset Threshold Options: 87.5% or 93.5%
    • Operates Through Cold-Crank Conditions
      • Low-Dropout Voltage of 280mV at 200mA
      • +3.5V to +30V Wide Input Voltage Range, +40V Tolerant
    • Robust Performance in Automotive Environment
      • Thermal and Short-Circuit Protection
      • High-Voltage Enable Input (+40V)
      • Operating -40°C to +125°C Temperature Range
      • Automotive Qualified AEC-Q100
    MAX1935 500mA, Low-Voltage Linear Regulator in Tiny DFN

    MAX1935 500mA, Low-Voltage Linear Regulator in Tiny DFN

    The MAX1935 low-dropout linear regulator operates from a 2.25V to 5.5V supply and delivers a gua...
    • Guaranteed 500mA Output Current
    • Output Down to 0.8V
    • Low 175mV Dropout at 500mA
    • ±1.5% Output Voltage Accuracy
      • Preset at 1.5V
      • Adjustable from 0.8V to 4.5V
    • Power-OK Output
    • Low 210µA Ground Current
    • 0.02µA Shutdown Current
    • Thermal-Overload Protection
    • Output Current Limit
    • Tiny 1.9W, 8-Pin 3mm x 3mm Thin DFN Package
    MAX1510 Low-Voltage DDR Linear Regulators

    MAX1510 Low-Voltage DDR Linear Regulators

    The MAX1510/MAX17510 DDR linear regulators source and sink up to 3A peak (typ) using internal n-...
    • Internal Power MOSFETs with Current Limit (3A typ)
    • Fast Load-Transient Response
    • External Reference Input with Reference Output Buffer
    • 1.1V to 3.6V Power Input
    • ±15mV (max) Load-Regulation Error
    • Thermal-Fault Protection
    • Shutdown Input
    • Power-Good Window Comparator with 2ms (typ) Delay
    • Small, Low-Profile 10-Pin, 3mm × 3mm TDFN Package
    • Ceramic or Polymer Output Capacitors
    MAX17510 Low-Voltage DDR Linear Regulators

    MAX17510 Low-Voltage DDR Linear Regulators

    The MAX1510/MAX17510 DDR linear regulators source and sink up to 3A peak (typ) using internal n-...
    • Internal Power MOSFETs with Current Limit (3A typ)
    • Fast Load-Transient Response
    • External Reference Input with Reference Output Buffer
    • 1.1V to 3.6V Power Input
    • ±15mV (max) Load-Regulation Error
    • Thermal-Fault Protection
    • Shutdown Input
    • Power-Good Window Comparator with 2ms (typ) Delay
    • Small, Low-Profile 10-Pin, 3mm × 3mm TDFN Package
    • Ceramic or Polymer Output Capacitors
    MAX38904A 1.7V–5.5V<sub>IN</sub>, 2A Low Noise LDO Linear Regulators in TDFN and WLP

    MAX38904A 1.7V–5.5VIN, 2A Low Noise LDO Linear Regulators in TDFN and WLP

    The MAX38904 is a 1.7V–5.5V VIN, low-noise linear regulator that delivers up to 2A of output cur...
    • Delivers Flexible Operating Range
      • 1.7V to 5.5V Input Voltage Range
      • 0.6V to 5.0V Programmable Output Voltage
      • 2A Maximum Output Current
      • 100mV Maximum Dropout at 2A Load
      • < 1.5µA Shutdown Supply Current
    • Reduces Noise and Improves Accuracy
      • ±1% DC Accuracy Over Load, Line, and Temperature
      • 5.1μVRMS Output Noise, 10Hz to 100kHz
      • 1.3mA Quiescent Supply Current
      • > 70dB PSRR at 10kHz
    • Enables Ease-of-Use and Robust Protection
      • Stable with 8µF (Min) Output Capacitance
      • Programmable Soft-Start Rate
      • Overcurrent and Overtemperature Protection
      • Output-to-Input Reverse Current Protection
      • Power-OK Status Pin
    • Reduces Size, Improves Reliability
      • 3mm x 3mm 14-pin TDFN Package and 2.2mm x 1.37mm, 5 x 3 Bump, 0.4mm Pitch WLP
      • -40°C to 125°C Operating Temperature
    MAX38904B 1.7V–5.5V<sub>IN</sub>, 2A Low Noise LDO Linear Regulators in TDFN and WLP

    MAX38904B 1.7V–5.5VIN, 2A Low Noise LDO Linear Regulators in TDFN and WLP

    The MAX38904 is a 1.7V–5.5V VIN, low-noise linear regulator that delivers up to 2A of output cur...
    • Delivers Flexible Operating Range
      • 1.7V to 5.5V Input Voltage Range
      • 0.6V to 5.0V Programmable Output Voltage
      • 2A Maximum Output Current
      • 100mV Maximum Dropout at 2A Load
      • < 1.5µA Shutdown Supply Current
    • Reduces Noise and Improves Accuracy
      • ±1% DC Accuracy Over Load, Line, and Temperature
      • 5.1μVRMS Output Noise, 10Hz to 100kHz
      • 1.3mA Quiescent Supply Current
      • > 70dB PSRR at 10kHz
    • Enables Ease-of-Use and Robust Protection
      • Stable with 8µF (Min) Output Capacitance
      • Programmable Soft-Start Rate
      • Overcurrent and Overtemperature Protection
      • Output-to-Input Reverse Current Protection
      • Power-OK Status Pin
    • Reduces Size, Improves Reliability
      • 3mm x 3mm 14-pin TDFN Package and 2.2mm x 1.37mm, 5 x 3 Bump, 0.4mm Pitch WLP
      • -40°C to 125°C Operating Temperature