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Linear LDO Voltage Regulator ICs

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Reliable Voltage Regulation for Consistent Device Performance

Low-Dropout (LDO) linear regulators are a simple solution for using an integrated circuit to regulate a higher voltage to a lower voltage without the use of an inductor. Power management is vital in a world driven by battery-powered small devices that require efficient power consumption and precision. LDO regulators span a wide spectrum of specialized uses and can be widely implemented in today’s electronics due to their simplicity and low cost.

Linear LDO Voltage Regulator ICs

Single-Output LDO Regulators

Single output of regulated voltage with your choice of fixed or adjustable output

 

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Multiple-Output LDO Regulators

Multiple output of regulated voltage of fixed output

 

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Low Quiescent Current LDO Regulators

Low quiescent LDOs to maximize battery life and efficiency by minimizing power consumption in portable and energy-sensitive applications

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DDR Termination Regulators

DDR termination regulators that offer low output impedance, high bandwidth, fast transient response and precise voltage accuracy for accurate, high-speed bus termination

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Ripple-Blocker LDOs

LDOs with low-pass filter in one package for high PSRR for various frequency ranges

 

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LDO Controllers and SIM Card Products

  • LDO controllers include all the control functions required in the design of a LDO linear regulator 
  • SIM card level shifters integrate three high-speed level shifters for SIM card signal translation and an LDO to power the SIM card
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High-Voltage Automotive Linear LDO Voltage Regulators

  • LDOs featuring high operating input voltage ranges (> 45V) and extensive protection capabilities
  • AEC-Q100 Grade 0 or Grade 1 qualified
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High-Voltage Linear Regulators (VIN > 100V)

  • CL family of current regulators that operate at up to 220V with currents up to 100 mA
  • LR family of linear voltage regulators that operate from input voltages up to 540V, with fixed and adjustable version sourcing from 10 mA to 50 mA
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High-Reliability Voltage Regulators

Radiation-tolerant, low-voltage LDO regulators that deliver 3A output current

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LDO Functional Safety

The increasing complexity of functions in today’s cars is driving home the importance of functional safety standards. Driver assistance and safety systems in modern cars need robust and dependable electronic components. The safety risks resulting from random hardware failures or systematic hardware/software errors must be reduced as much as possible throughout the product’s foreseeable lifetime.

Our LDOs offer a variety of safety features to help you implement a more reliable DC-DC power design.

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Simplified Circuit Design

  • Ultra-low quiescent current
  • Ultra-low dropout voltage
  • Ultra-high ripple rejection
  • Very accurate output
  • Fast transient response
  • Wide selection of packages
  • Wide input voltage range

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Design Resources

MPLAB Analog Designer

MPLAB® Analog Designer

This tool provides design suggestions for common circuit needs, estimates performance for common modifications, and can export to MPLAB® Mindi™ Analog Simulator for verification.

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MPLAB Mindi Analog Simulator

MPLAB® Mindi™ Analog Simulator

This simulation tool uses a SIMetrix/SIMPLIS environment to model circuit behavior, reducing design time with software debugging for initial design verification.

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MicroCHECK Design Service

MicroCHECK Design Service

Our complimentary MicroCHECK design review service, which offers insight from the initial concept to the final PCB layout, is available to customers who are using our products in their projects.

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