LDBL20D-18R STMicroelectronics

LDBL20 Datasheet 200 mA very low quiescent current linear regulator IC in (0.47x0.47) mm STSTAMP package 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 A typ. at no-load, 0.03 A typ. in off mode) Output voltage tolerance: 1.5% 25 C 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 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 STSTAMP (0.47 x 0.47) mm package Operating temperature range: -40 C to 125 C Applications Mobile phones Tablet Digital still cameras (DSC) Maturity status link Wearable devices LDBL20 Portable media players Description The LDBL20 high accuracy voltage regulator provides 200 mA of maximum current from an input voltage ranging from 1.5 V to 5.5 V, with a typical dropout voltage of 200 mV. It is available in the new STSTAMP 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 LDBL20 suitable for low power battery-operated applications. An enable logic control function puts the LDBL20 in shutdown mode with a total current consumption lower than 0.2 A. Constant current and thermal protection are provided. DS11244 - Rev 3 - January 2021 www.st.com For further information contact your local STMicroelectronics sales office.LDBL20 Diagram 1 Diagram Figure 1. Block diagram V IN V OUT Bias generator OPAMP EN Enable Thermal protection Bandgap reference * GND AM13852V1 Note: The output discharge MOSFET is optional. DS11244 - Rev 3 page 2/22