ST’s low dropout (LDO) regulators offer an optimal combination of low dropout voltage, low quiescent current, fast transient response, low noise and good ripple rejection.

In particular, the ultra-low dropout (ULDO) regulators are ideal for battery-powered consumer applications as well as portable healthcare devices as a result of:
  • ultra-low quiescent current (down to 1 µA) which extends battery run time
  • tiny package options, including the 0.69 x 0.69 mm CSPs to achieve the smallest footprint
Signal fidelity is maintained over a wide range of input voltages and output currents all along the signal path, thanks to the high PSSR (power supply rejection rate) and low noise.

LD39020: miniaturized low Iq, high performance LDO

The LD39020 is a miniaturized low-consumption LDO able to provide up to 200 mA current from an input voltage ranging from 1.5 to 5.5 V.
Housed in the new tiny DFN4 package  with a footprint of only 1x1mm2, LD39020 features an initial accuracy up to 0.5%, a very high power supply rejection of 80dB at 1kHz and a low quiescent current of 20 µA .
LD39020 is the ideal power supply linear regulators for the space-constrained hand-held applications, such as the last generation smartphones, tablets and portable entertainment devices.
It is available in many different options covering a range of output voltages from 0.8 V to 5 V in 50 mV steps.