LD39030:300 mA very low quiescent current linear regulator IC

The LD39030 high accuracy voltage regulator provides 300 mA of maximum current from an input voltage ranging from 1.5 V to 5.5 V, with a typical dropout voltage of 300 mV.

It is available in DFN4 1x1 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 low noise features, together with the internal soft-start circuit, make the LD39030 suitable for low power battery-operated applications.

An enable logic control function puts the LD39030 in shutdown mode allowing a total current consumption lower than 0.1 µA. Constant current and thermal protection are provided.

Key Features

  • Input voltage from 1.5 to 5.5 V
  • Ultra low dropout voltage (300 mV typ. at 300 mA load)
  • Very low quiescent current (20 µA typ. at no load, 0.03 µA typ. in off mode)
  • Output voltage tolerance: ± 0.5 % (A version) or ± 2.0 % @ 25 °C (standard version)
  • 300 mA guaranteed output current
  • High PSRR (80 dB@1 kHz, 50 db@100 kHz)
  • Wide range of output voltages available on request: from 0.8 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 = 0.47 µF
  • Internal constant current and thermal protections
  • Available in DFN4 1x1
  • Operating temperature range: -40 °C to 125 °C
Product Specifications
DescriptionVersionSize
DS11386: 300 mA very low quiescent current linear regulator IC3.01 MB
Brochures
DescriptionVersionSize
Brochure Power management guide05.20164 MB
Sample & Buy
Part NumberPackagePacking TypeOutput Voltage (V) (nom)Output Tolerance (typ)Output Current (A) (nom)Unit Price (US$) *QuantityECCN (EU)ECCN (US)Country of Origin
LD39030DTPU33RVFDFPN 1.0X1.0X0.38 4LTape And Reel3.3-0.30.151000NECEAR99CHINA
LD39030DTPU105RVFDFPN 1.0X1.0X0.38 4LTape And Reel--0.30.151000NECEAR99CHINA
LD39030ADTPU28RVFDFPN 1.0X1.0X0.38 4LTape And Reel--0.30.151000NECEAR99CHINA
LD39030DTPU28RVFDFPN 1.0X1.0X0.38 4LTape And Reel--0.30.151000NECEAR99CHINA
Quality & Reliability
Part NumberPackageGradeRoHS Compliance GradeMaterial Declaration**
LD39030DTPU33RVFDFPN 1.0X1.0X0.38 4LIndustrialEcopack2
LD39030DTPU105RVFDFPN 1.0X1.0X0.38 4LIndustrialEcopack2
LD39030ADTPU28RVFDFPN 1.0X1.0X0.38 4LIndustrialEcopack2
LD39030DTPU28RVFDFPN 1.0X1.0X0.38 4LIndustrialEcopack2
300 mA very low quiescent current linear regulator IC LD39030
Very low drop voltage regulators with inhibit KFXX