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Power management

Improve your system performance with our  LDO linear regulators

With the largest portfolio of LDOs, we have the right one for you

Low-dropout (LDO) linear regulators are a simple, inexpensive way to regulate an output voltage that is powered from a higher voltage input in a variety of applications. Browse our portfolio of over 500 devices with features such as low noise, wide input voltage (VIN), small package size, low quiescent current (IQ), processor attach and the industry's first smart AC/DC linear regulator. We also help you meet nearly any regulator design challenge, from powering sensitive analog systems to extending battery life.

Product portfolio

Our high-performance linear power regulators and low-voltage regulators feature low noise, low IQ and wide VIN ranges. Our LDO regulators are available in small package sizes and for automotive applications.

Low-VIN (≤7 V)

Design for low-voltage applications with our broad portfolio of low-VIN LDOs.

Mid-VIN (7 V to 30 V)

Design for multicell battery or other mid-voltage applications with our regulators.

Wide-VIN (>30 V)

Enhance system reliability with our robust LDOs featuring input ranges above 30 V.

What’s new

The industry's lowest quiescent current (25-nA), ultra-small LDO regulator

This ultra-small LDO combines low IQ with fast transient response to improve system lifetime and performance. The TPS7A02 helps reduce solution size by 70%, increase application run times and extend the battery life of your electronics.

Power trends

Power management is at the center of enabling the continued integration of electronics in our lives. For decades, TI has been at the forefront of developing new process, packaging and circuit-design technologies to deliver the best power devices for your design. Check out our featured LDOs below, designed to help you address power density, low IQ and low noise and precision challenges.

LDOs for power density

Designing power supplies for space-constrained applications requires regulators that can operate efficiently in a small form-factor. Our LDOs help solve power density design challenges by offering low-dropout operation, improved thermal performance and small solution size. Low-dropout operation minimizes dissipation and improves thermal performance by facilitating heat transfer away from the package. Our LDOs are available in several small packages such as DSBGA (<1 mm2), X2SON (1 mm2) and SON (4 mm2), in addition to common leaded packages, helping you design for high power density.

TPS7A54

4-A, low-VIN (1.1-V), low-noise, high-accuracy, ultra-low-dropout voltage regulator

TLV752

1-A, low-IQ, high-PSRR, adjustable, dual-channel low-dropout voltage regulator

TPS7A78

120-mA smart AC/DC low-dropout linear voltage regulator

LDOs for low quiescent current (IQ)

We understand that achieving ultra-low quiescent current (IQ) shouldn’t compromise your system performance. We offer regulators with low standby power combined with excellent load transient response so that you can achieve the longest battery run times while maintaining key performance. Our linear regulator portfolio includes low-IQ LDOs with input voltages as high as 100 V to help you with your low-standby power needs.

TPS7A02

200-mA, nanopower-IQ (25 nA), low-dropout voltage regulator with enable

TPS7A24

200-mA, 18-V, ultra-low-IQ, low-dropout voltage regulator with enable

TPS7B82-Q1

Automotive 300-mA, off-battery (40-V), ultra-low-IQ, low-dropout voltage regulator with enable

LDOs for low noise & precision

We can help solve your low-noise design challenges with a broad portfolio of low-noise and high power-supply rejection ratio (PSRR) regulators. High PSRR over a wide bandwidth (for example, 40 dB at 1 MHz) enables the LDO to filter switching noise emanating from upstream DC/DC converters. Low-noise (<5 µVRMS) outputs minimize low-frequency noise to maintain the signal integrity of sensitive analog circuitry such as analog-to-digital converters (ADCs) or digital-to-analog converters (DACs), helping you generate clean power for precision applications.

TPS7A20

300-mA, low-noise, ultra-low-IQ, low-dropout voltage regulator with high-PSRR

TPS7A53

3-A, low-VIN (1.1-V), low-noise, high-accuracy, ultra-low-dropout voltage regulator

TPS7A91

1-A, low-noise, high-PSRR, adjustable output ultra-low-dropout voltage regulator with high-accuracy