LD56100 Ultra-Low Noise Linear Regulator

STMicro's LD56100 is a 1 A low dropout fast transient ultra-low linear regulator

Image of STMicro's LD56100 Ultra-Low Noise Linear RegulatorSTMicro's LD56100 high accuracy voltage regulator provides 1 A of current from an input voltage ranging from 1.8 V to 5.5 V, with a typical dropout voltage of 120 mV. It is available in DFN8 (1.2 mm x 1.6 mm) package, allowing for maximum space-saving. This device is stabilized with a ceramic capacitor on the output.

The ultra-low dropout voltage, low quiescent current, and fast transient response combined with the internal soft-start circuit make the LD56100 suitable for low power battery-operated applications. An enable logic control function puts the LD56100 in shutdown mode resulting in a total current consumption lower than 0.1 µA. Short-circuit protection with current limit foldback and thermal protection are also included.

  • Input voltage from 1.8 V to 5.5 V
  • Ultra-low dropout voltage: 120 mV typ. at 1 A load and VOUT = 3.3 V
  • Very low quiescent current: 100 µA typ. at no-load, 0.03 µA typ. in off-mode
  • Output voltage tolerance: ±1% from -40°C to +85°C
  • Ultra-low noise: 13 µVRMS noise from 10 Hz to 100 kHz at VOUT = 3.0 V
  • High PSRR: 70 dB at 1 kHz
  • Wide range of output voltages available on request: from 1.0 V up to 5.0 V in 50 mV step
  • Logic-controlled electronic shutdown
  • Internal soft-start
  • Optional output voltage discharge feature
  • Compatible with ceramic capacitor COUT = 1 µF
  • Internal current limit foldback and thermal protections
  • Available in DFN8 (1.2 mm x 1.6 mm)
  • Operating temp. range: -40°C to +125°C
  • Mobile phones
  • Tablets
  • Battery-powered systems
  • Camera supplies

LD56100 Ultra-Low Noise Linear Regulator

ImageManufacturer Part NumberDescriptionVoltage - Output (Min/Fixed)Voltage Dropout (Max)Protection FeaturesAvailable QuantityView Details
IC REG LINEAR 3.3V 1A 8DFNLD56100DPU33RIC REG LINEAR 3.3V 1A 8DFN3.3V0.16V @ 1AOver Current, Over Temperature0View Details
IC REG LINEAR 3V 1A 8DFNLD56100DPU30RIC REG LINEAR 3V 1A 8DFN3V0.165V @ 1AOver Current, Over Temperature, Short Circuit3975 - ImmediateView Details
Published: 2018-10-23

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Linear Voltage Regulators
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