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Description

The LD59030 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

135 mV at VOUT = 3.3 V.

It is available in DFN4 1x1 package, allowing the maximum space saving.

The device works 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 and output current fold-back protection, make the LD59030 suitable for low

power battery-operated applications.

An enable logic control function puts the LD59030 in shutdown mode allowing a total

current consumption lower than 0.03 μA.

Features

? Input voltage from 1.5 to 5.5 V

? Ultra low dropout voltage (135 mV typ. at 300 mA load)

? Very low quiescent current (28 μA typ. at no load, 0.03 μA typ. in off mode)

? Internal current fold-back

? Output voltage tolerance: ± 1 @ 25 °C

? 300 mA guaranteed output current

? High PSRR: 75 dB@1 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

? Thermal protection

? Available in DFN4 1x1

? Operating temperature range: -40 °C to 125 °C