STMicroelectronics LD56020 voltage regulator

Click2Contact

STMicroelectronics’ LD56020 200 mA low-dropout voltage regulator operates with a supply from 1.1 to 5.5 V and has low output noise for applications that demand good stability and long battery runtime.

Suitable for mobiles, vision sensors and wireless modules, the product has low dropout voltage of just 190 mV (max at full load) and maximum quiescent current of 25 µA at light load. An external enable pin permits control logic to put the regulator into standby mode, which reduces current below 0.1 µA.

With supply-voltage rejection (SVRIN) of 90 dB (1 kHz, 20 mA) and output noise of just 8.8 µVRMS (10 Hz to 100 kHz), the product provides a clean power rail for low-voltage digital circuitry. The circuit is stabilised with only one small ceramic capacitor at each of the input and output terminals. In addition to minimising the bill of materials, the low overall component count combines with the regulator’s tiny chip-scale package (CSP) outline of 0.65 x 0.65 mm for a compact circuit footprint with low impact on PCB size.

The regulator integrates protection features including short-circuit current foldback and undervoltage lockout to prevent excessive dissipation in the event of a system fault. There is also overtemperature protection and an internal discharge path.

For more information: www.st.com/ldo.