LD39030DTPU105R STMicroelectronics

LD39030 Datasheet 300 mA very low dropout linear regulator IC Features Input voltage from 1.5 to 5.5 V Ultra low dropout voltage (300 mV typ. at 300 mA load) DFN4 1x1 Very low quiescent current (20 A typ. at no load, 0.03 A 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 C = 0.47 F OUT Internal constant current and thermal protections Available in DFN4 1x1 Operating temperature range: -40 C to 125 C Applications Mobile phones Maturity status link Tablets LD39030 Digital still cameras (DSC) Cordless phones and similar battery-powered systems Portable media players Description 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 1 x 1 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 A. Constant current and thermal protection are provided. DS11386 - Rev 4 - May 2018 www.st.com For further information contact your local STMicroelectronics sales office.LD39030 Diagram 1 Diagram Figure 2. Block diagram V IN V OUT Bias generator OPAMP EN Enable Thermal protection Bandgap reference * GND AM13852V1 Note: The output discharge MOSFET is optional. DS11386 - Rev 4 page 2/20