Conceived for noise-sensitive and RF applications, this series of high-performance LDO regulators feature remarkable power supply rejection ratio characteristics (up to 92 dB at 1 kHz) and ultra-low noise operation (as low as 6.3 µVRMS) resulting in cleaner and stable output voltages suitable for ultra-sensitive loads. Their advanced design guarantees fast and stable dynamic performance with low power consumption.
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Ultra-low-dropout linear regulator with programmable soft-start
The LD59150 is a 1.5 A ultra-low-dropout voltage regulator designed to efficiently and accurately supply a variety of low-voltage circuits in automotive and industrial applications. This is achieved thanks to a dropout voltage as low as just 65 mV at maximum load, which minimizes power losses, and an initial output accuracy of 0.5% (2% overall) along with a very high PSRR (> 80 dB @ 100 Hz).
Medium power MCUs, ASICS and other sensitive logic may benefit of the Power Good and programmable Soft Start features which allow a safe and correct power sequencing while keeping the inrush current under control. The LD59150’s input voltage range is 0.8 to 5.5 V, with an auxiliary bias voltage (VBIAS) of 2.7 to 5.5 V, while the output voltage can be adjusted between 0.8 and 3.6 V. The device comes in a compact, 3 x 3 mm, DFN10 package with wettable flanks and is automotive-grade qualified according to AEC-Q100 Level 1.
Ultra-low-noise and low-consumption LDO for ultra-sensitive loads
The LDLN025 is a series of 250 mA low-dropout voltage regulators designed for noise sensitive loads. Able to work with an input voltage range from 1.5 to 5.5 V, it provides accurate and stable voltage to precision ADCs, VCOs, or sensors, in space-constrained products such as smartphones, smart watches, fitness monitors, medical sensors, and wireless IoT devices.
Due to its best-in-class output noise figures (<6.5 µVRMS) and very high PSRR (80 dB), the LDLN025 provides a very clean output, suitable for ultra-sensitive loads. Moreover, its very low quiescent current, only 12 μA at no-load, extends the battery life of applications requiring very long standby time.
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LD59150
1.5A Low Dropout Linear Regulator with Programmable Soft-Start
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LD56100
1A very low dropout fast transient ultra-low noise linear regulator
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LD59030
300 mA very low dropout current linear regulator IC
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LDBL20
200 mA very low quiescent current linear regulator IC in (0.47x0.47) mm² ST STAMP™ package
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LD39100
1 A low quiescent current low noise voltage regulator
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LD59015
150 mA low noise high PSRR linear voltage regulator
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LD39050
500 mA low quiescent current and low noise voltage regulator
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LDLN050
500 mA, high performance low dropout linear regulator
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LDLN030
300 mA ultra-low noise LDO with Power Good and Soft Start
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LDLN015
150 mA - ultra low noise - high PSRR linear voltage regulator IC
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LD59100
1A Ultra Low-Dropout regulator with Reverse Current Protection
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LDLN025
250 mA ultra-low noise LDO
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LD39115J
150 mA low quiescent current low noise voltage regulator
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LD39015
150 mA low quiescent current low noise voltage regulator
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LD39200
2 A high PSRR ultra low drop linear regulator with reverse current protection
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LD39030SJ
300 mA low quiescent current soft-start, low noise voltage regulator
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LD39020
200 mA very low quiescent current Linear regulator IC
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LD3985
Ultra low drop-low noise BiCMOS voltage regulators low ESR capacitors compatible
