STEVAL-ISB034V1

STEVAL-ISB034V1 Evaluation board for the LDBL20 high PSRR, miniaturized 200 mA LDO Data brief Description The STEVAL-ISB034V1 board features the LDBL20 high performance linear voltage regulator, configured to convert a 2.85 V to 5.5 V DC input voltage into a precise and stable 2.5 V output voltage. Only two small ceramic capacitors are needed to implement the linear regulator solution. The very low dropout LDBL20 voltage regulator features high PSRR, low quiescent current and the minute ST Stamp™ chip-scale package, with a footprint of only 0.47 x 0.47 mm². It is designed for low power battery-operated equipment like smartphones, tablets and wearable devices. Features         Output current: 200 mA Logic controlled electronic shutdown High PSRR  80 dB @ 1 kHz  50 dB @ 100 kHz Quiescent current:  20 μA typ. at no load  0.03 μA typ. in off mode 2.5 V +/- 2% output voltage Other voltage options available on request ST Stamp™ 0.47 x 0.47 mm² bumpless CSP RoHS compliant February 2016 DocID029002 Rev 1 For further information contact your local STMicroelectronics sales office 1/4 www.st.com Schematic diagram 1 STEVAL-ISB034V1 Schematic diagram Figure 1: STEVAL-ISB034V1 circuit schematic Vin_f CN1 7 6 5 4 3 2 1 Vin_s GND Vout_s Vout_f Vin_s Vin_f EN GND Vout_s Vin En Vout GND C2 1µF C1 1µF Enable GND GSPG1102161430SG 2/4 Vout_f L DBL 20D-25R U1 DocID029002 Rev 1 GND GND STEVAL-ISB034V1 2 Revision history Revision history Table 1: Document revision history Date Version Changes 17-Feb-2016 1 Initial release. DocID029002 Rev 1 3/4 STEVAL-ISB034V1 IMPORTANT NOTICE – PLEASE READ CAREFULLY STMicroelectronics NV and its subsidiaries (“ST”) reserve the right to make changes, corrections, enhancements, modifications, and improvements to ST products and/or to this document at any time without notice. Purchasers should obtain the latest relevant information on ST products before placing orders. ST products are sold pursuant to ST’s terms and conditions of sale in place at the time of order acknowledgement. Purchasers are solely responsible for the choice, selection, and use of ST products and ST assumes no liability for application assistance or the design of Purchasers’ products. No license, express or implied, to any intellectual property right is granted by ST herein. Resale of ST products with provisions different from the information set forth herein shall void any warranty granted by ST for such product. ST and the ST logo are trademarks of ST. All other product or service names are the property of their respective owners. Information in this document supersedes and replaces information previously supplied in any prior versions of this document. © 2016 STMicroelectronics – All rights reserved 4/4 DocID029002 Rev 1