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Low Dropout (LDO) Linear Regulators

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. 

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