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STMicroelectronics Low Dropout (LDO) Regulators

STMicroelectronics Low Dropout (LDO) Regulators

STMicroelectronics Low Dropout (LDO) Regulators offer an optimal combination of low dropout voltage, low quiescent current, fast transient response, low noise and good ripple rejection all in a very tiny package (DFN4 1x1mm, DFN6 1.2x1.3mm and Flip-Chip 0.69x0.69mm).

STMicroelectronics High PSRR (Low Noise) LDOs are 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.


LDLN015xx Ultra Low Noise Linear Regulators

  • Ultra low noise: 6.3μVRMS from 10Hz to 100kHz
  • Input voltage from 2.1 to 5.5V
  • Very low quiescent current (17μA typ. at no load, 54μA typ. at 150mA load; 2μA max. in off mode)
  • Output voltage tolerance: ±1% at 25°C
  • 150mA guaranteed output current
  • Wide range of output voltage from 0.8V to 3.3V with 100mV step
  • Logic-controlled electronic shutdown
  • Compatible with ceramic capacitor (COUT = 0.47μF)
  • No bypass capacitor is required
  • Internal current and thermal limit
  • Package DFN6 (2 x 2mm)
  • Temperature range: - 40°C to 125°C

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STMicroelectronics LDLN015xx Ultra Low Noise Linear Regulators
STMicroelectronics LDLN015xx Ultra Low Noise Linear Regulators View Product List


STMicroelectronics offers a wide range of low and medium power LDO regulators featuring ultra-low dropout and fast transient response characteristics. The ultra-low dropout series of LDOs simplifies the design of high-efficiency, cost-effective linear power management (from 50mA to 3A of continuous load current), ideal for DSPs, MCUs and FPGAs.


LD39130S High Accuracy Voltage Regulators

  • Input voltage from 1.4 to 5.5V
  • Ultra low dropout voltage (300mV typ. at 300mA load)
  • Automatic green mode
  • Very low quiescent current (55μA typ. at 300mA load in normal mode, 1μA in green mode and 0.1μA typ. in off mode)
  • Output voltage tolerance: ± 1.0% at 25°C
  • 300mA guaranteed output current
  • Wide range of output voltages available on request: adjustable from 0.8V, fixed up to 4.0V in 100mV step
  • Logic-controlled electronic shutdown
  • Internal soft-start
  • Compatible with ceramic capacitor COUT = 1μF
  • Internal current foldback and thermal protections
  • Available in DFN6 1.2x1.3mm and Flip-chip 4 bumps 0.69x0.69 mm. 0.4 pitch
  • Operating temperature range: -40°C to 125°C

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LDCL015 Ultra Low Drop Linear Regulator

  • No input or output capacitor required
  • Input voltage from 1.8V to 5.5V
  • Very low drop: 50mV at 100mA load
  • ±2% output voltage accuracy
  • Output voltage tolerance: ± 3%
  • Low noise
  • 150mA guaranteed output current
  • Available in fixed and adjustable output voltages, from 0.8V in 100mV steps
  • Internal current and thermal limit
  • Operating temperature range: -40°C to 125 °C
  • SOT23 5-lead package

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LDFM Very Low Drop Voltage Regulator

  • Input voltage from 2.5 to 16V
  • Very low dropout voltage (300mV max. at 500mA load)
  • Low quiescent current (200 μAtyp. @ 500mA load)
  • Available in 1% precision in PPAK and DFN6 packages, 2% in DPAK
  • 500mA guaranteed output current
  • Wide range of output voltages available on request: adjustable from 0.8V, fixed up to 12V in 100mV steps
  • Logic-controlled electronic shutdown
  • Power Good (PPAK and DFN packages)
  • Fast dynamic response to line and load changes
  • Internal current and thermal protection
  • Temperature range: - 40°C to 125°C

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LDK120C/M/P Low Drop Voltage Regulators

  • Input voltage from 1.9 to 5.5V
  • Very low dropout voltage (100mV typ. at 100mA load)
  • Low quiescent current (max. 100μA, 1μA in OFF mode)
  • Very low noise
  • Output voltage tolerance: ± 2.0% @ 25°C
  • 200mA guaranteed output current
  • Wide range of fixed output voltages available on request: from 0.8V to 3.5V with 100mV step
  • Adjustable version: from 0.8V to VIN-Vdrop
  • Logic-controlled electronic shutdown
  • Compatible with ceramic capacitor COUT = 1μF
  • Internal current and thermal limit
  • Temperature range: -40°C to 125°C

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LDK130C/M/P Low Drop Voltage Regulators

  • Input voltage from 1.9 to 5.5V
  • Very low dropout voltage (100mV typ. at 100mA load)
  • Low quiescent current (max. 120μA, 1μA in OFF mode)
  • Very low noise
  • Output voltage tolerance: ± 2.0% @ 25°C
  • 300mA guaranteed output current
  • Wide range of fixed output voltages available on request from 0.8V to 3.5V with 100mV step
  • Adjustable version: from 0.8V to VIN-Vdrop
  • Logic-controlled electronic shutdown
  • Compatible with ceramic capacitor COUT = 1μF
  • Internal current and thermal limit
  • Temperature range: -40°C to 125°C

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LDK220 Low Drop Voltage Regulators

  • Input voltage from 2.5 to 13.2V
  • Very low-dropout voltage (100mV typ. @ 100mA load)
  • Low quiescent current (typ. 40μA, 1μA in off mode)
  • Low noise
  • Output voltage tolerance: ±2.0% @ 25°C
  • 200mA guaranteed output current
  • Wide range of output voltages available on request: fixed from 1.2V to 12V with 100mV step and adjustable
  • Logic-controlled electronic shutdown
  • Compatible with ceramic capacitor COUT = 1μF
  • Internal current and thermal limit
  • Available in SOT23-5L, SOT323-5L and DFN6-1.2x1.3 packages
  • Temperature range: -40°C to 125°C

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