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LD56100DPU30R

LD56100DPU30R

LD56100DPU25R

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1 A very low dropout fast transient ultra-low noise linear regulator

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1 - 9$0.701%
10 - 99$0.5718%
100 - 249$0.4733%
250 - 499$0.4438%
500$0.3747%
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Parameter NameParameter Value
Operating Temp Min Celsius-40.0
Operating Temp Max Celsius85.0
ECCN USEAR99
ECCN EUNEC
Packing TypeTape And Reel
ROHS Compliance GradeEcopack2
GradeIndustrial
Package NameDFN8 1.2x1.6

The 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 x 1.6 mm) package, allowing the maximum space saving.


The device is stabilized with a ceramic capacitor on the output. The ultra-low drop voltage, low quiescent current and fast transient response, together 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 allowing a total current consumption lower than 0.1 μA. Short-circuit protection with current limit foldback and thermal protection are also included.

Key features
  • Input voltage from 1.8 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 µV RMS Noise from 10 Hz to 100 kHz at VOUT = 3.0 V
  • High PSRR (70 dB@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 (1.2x1.6 mm)
  • Operating temperature range: -40 °C to 125 °C