STMicroelectronics

LD49100 Low Quiescent Voltage Regulator

STMicroelectronics' voltage regulators are stable with ceramic capacitors on the input and output

Image of STMicroelectronics LD49100 Low Quiescent Voltage RegulatorSTMicroelectronics' LD49100 provides 1 A maximum current with an input voltage range from 1.5 V to 5.5 V and a typical dropout voltage of 200 mV at 1 A output current. The device is stable with ceramic capacitors on the input and output.

The ultra low-dropout voltage, low quiescent current and low-noise features make it suitable for a wide range of automotive applications. Power supply rejection is 70 dB at low frequency and starts to roll off at 10 kHz. Enable logic control function puts the LD49100 in shutdown mode, allowing a total current consumption lower than 1 μA.

Features
  • AEC-Q100 qualified
  • Temperature range: -40°C to +125°C
  • Input voltage from 1.5 V to 5.5 V
  • Ultra low-dropout voltage (200 mV typ. at 1 A load)
  • Very low quiescent current (20 µA typ. at no load)
  • Very low-noise with no bypass capacitor (30 µVRMS at VOUT = 0.8 V)
  • Output voltage tolerance: ±2.0%
  • DFN6 (3 mm x 3 mm) package with wettable flanks

LD49100 Low Quiescent Voltage Regulator

ImageManufacturer Part NumberDescriptionVoltage - Input (Max)Voltage Dropout (Max)Available QuantityPriceView Details
IC REG LINEAR POS ADJ 1A 6-DFNLD49100PURYIC REG LINEAR POS ADJ 1A 6-DFN5.5V0.4V @ 1A2092 - Immediate$1.03View Details
IC REG LINEAR 3.3V 1A 6-DFNLD49100PU33RYIC REG LINEAR 3.3V 1A 6-DFN5.5V0.4V @ 1A7321 - Immediate$0.91View Details
IC REG LINEAR 2.5V 1A 6-DFNLD49100PU25RYIC REG LINEAR 2.5V 1A 6-DFN5.5V0.4V @ 1A0 - Immediate$1.03View Details
IC REG LINEAR 1.8V 1A 6-DFNLD49100PU18RYIC REG LINEAR 1.8V 1A 6-DFN5.5V0.4V @ 1A3049 - Immediate$0.93View Details
IC REG LINEAR 1.2V 1A 6-DFNLD49100PU12RYIC REG LINEAR 1.2V 1A 6-DFN5.5V0.4V @ 1A2160 - Immediate$0.91View Details
Published: 2020-11-17