STEVAL-ISB037V1 STMicroelectronics

S T E VA L - I S B 0 3 7 V 1 Evaluation board for the LD39020 high PSRR, 200 mA LDO Data brief Description The STEVAL-ISB037V1 board features the LD39020 high performance linear voltage regulator, configured to convert a DC input voltage from 2.4 V to 5.5 V into a precise and stable 1.8 V output voltage. Only two small ceramic capacitors are needed to implement the linear regulator solution. The very low dropout LD39020 voltage regulator features high PSRR and low quiescent current in a tiny DFN4 package with a footprint of only (1 x 1) mm. It is designed for low-power battery operated equipment such as smartphones, tablets and Features wearable devices. Output current: 200 mA Logic controlled electronic shutdown High PSRR 80 dB 1 kHz 50 db 100 kHz Quiescent current: 20 A typ at no load 0.03 A typ in off mode 1.8 V 0.5% output voltage Other voltage options available on request DFN4-1 x 1 package (0.8 x 0.8 available on request) RoHS compliant September 2016 DocID029567 Rev 1 1/4 www.st.com For further information contact your local STMicroelectronics sales office Schematic diagram STEVAL-ISB037V1 1 Schematic diagram Figure 1: STEVAL-ISB037V1 circuit schematic CN1 Vin f Vin s Vout s Vout f GND LD39020ADTPU18R 8 EN U1 7 Vin s 6 Vin Vout Vin f 5 En Vout s GND 4 C1 C2 Vout f 3 1 F 1 F Vout f 2 GND 1 Enable GND GND GND GSPG1407161120SG 2/4 DocID029567 Rev 1