Description:

The LD39020 high accuracy voltage regulator provides 200 mA of maximum currentfrom an input voltage ranging from 1.5 V to 5.5 V, with a typical dropout voltage of200 mV.It is available in DFN4 1x1 and SOT23-5L packages, allowing the maximum spacesaving.The device is stabilized with a ceramic capacitor on the output. The ultra low dropvoltage, low quiescent current and low noise features, together with the internal softstart circuit, make the LD39020 suitable for low power battery-operated applications.An enable logic control function puts the LD39020 in shutdown mode allowing a totalcurrent consumption lower than 0.1 µA. Constant current and thermal protection areprovided.

Features:

• Input voltage from 1.5 to 5.5 V

• Ultra low dropout voltage (200 mV typ. at 200 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 (standardversion)

• 200 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 50mV step

• Logic-controlled electronic shutdown

• Internal soft-start

• Optional output voltage discharge feature

• Compatible with ceramic capacitor COUT = 0.47 µF

• Internal current limit and thermal protections

• Available in DFN4 1x1 and SOT23-5L packages

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

Applications:

• Mobile phones

• Tablets

• Digital still cameras (DSC)

• Cordless phones and similar battery-powered systems

• Portable media players