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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

Product Image
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
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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
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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
Product Image
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
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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
Product Image
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
Product Image
MAX38904C 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
Product Image
MAX38904D 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
Product Image
MAX38903C 1.7V–5.5VIN, 1A Low Noise LDO Linear Regulators in TDFN and WLP
The MAX38903A/B/C/D are a family of low-noise linear regulators that deliver up to 1A of output ...
  • Delivers Flexible Operating Range
    • 1.7V to 5.5V Input Voltage Range
    • 0.6V to 5.0V Programmable Output Voltage
    • 1A Maximum Output Current
    • 100mV Maximum Dropout at 1A Load
    • < 1µA Shutdown Supply Current
  • Reduces Noise and Improves Accuracy
    • ±1% DC Accuracy Over Load, Line, and Temperature
    • 7µVRMS Output Noise, 10Hz to 100kHz
    • 1200µA Operating Supply Current
    • 70dB PSRR at 10kHz
  • Enables Ease-of-Use and Robust Protection
    • Stable with 4µF(min) Output Capacitance
    • Programmable Soft-Start Rate
    • Overcurrent and Overtemperature Protection
    • Output-to-Input Reverse Current Protection
    • Power-OK Output
  • Reduces Size, Improves Reliability
    • 3mm x 3mm, 10-pin TDFN Package and 1.4mm x 1.4mm, 3 x 3 Bump, 0.4mm Pitch WLP
    • -40°C to 125°C Operating Temperature
Product Image
MAX38903D 1.7V–5.5VIN, 1A Low Noise LDO Linear Regulators in TDFN and WLP
The MAX38903A/B/C/D are a family of low-noise linear regulators that deliver up to 1A of output ...
  • Delivers Flexible Operating Range
    • 1.7V to 5.5V Input Voltage Range
    • 0.6V to 5.0V Programmable Output Voltage
    • 1A Maximum Output Current
    • 100mV Maximum Dropout at 1A Load
    • < 1µA Shutdown Supply Current
  • Reduces Noise and Improves Accuracy
    • ±1% DC Accuracy Over Load, Line, and Temperature
    • 7µVRMS Output Noise, 10Hz to 100kHz
    • 1200µA Operating Supply Current
    • 70dB PSRR at 10kHz
  • Enables Ease-of-Use and Robust Protection
    • Stable with 4µF(min) Output Capacitance
    • Programmable Soft-Start Rate
    • Overcurrent and Overtemperature Protection
    • Output-to-Input Reverse Current Protection
    • Power-OK Output
  • Reduces Size, Improves Reliability
    • 3mm x 3mm, 10-pin TDFN Package and 1.4mm x 1.4mm, 3 x 3 Bump, 0.4mm Pitch WLP
    • -40°C to 125°C Operating Temperature