STMicroelectronics Power Management Development Kit Evaluation Board for LD39020 High PSRR STEVAL-ISB037V1

STMicroelectronics STEVAL-ISB037V1 Power Management Development Kit Evaluation Board features the LD39020 high performance linear voltage regulator, designed to convert DC input voltages ranging from 2.4 V to 5.5 V into a precise 1.8 V output voltage with ±0.5% accuracy.

This evaluation board requires only two small ceramic capacitors, making the regulator solution highly compact and easy to implement. The LD39020 voltage regulator operates with very low dropout voltage and delivers a high power supply rejection ratio (PSRR) ensuring minimal noise and ripple in sensitive electronic systems.

The device is housed in a tiny DFN4 package with a footprint of only 1 x 1 mm², making it ideal for space-constrained applications. It provides a maximum output current of 200 mA with logic controlled electronic shutdown functionality for power saving. Typical quiescent current consumption is very low at 20 μA with an off mode current as low as 0.03 μA.

Key performance includes 80 dB PSRR at 1 kHz and 50 dB at 100 kHz, which is critical in preserving signal integrity for battery-operated devices such as smartphones, tablets, and wearable electronics.

This evaluation board complies with RoHS standards and is manufactured in Italy, ensuring high-quality and environmentally sustainable production.

The STEVAL-ISB037V1 is suited for industrial and laboratory power management testing, embedded system prototyping, and educational development environments focusing on low power and compact voltage regulation solutions.

The board converts 2.4 V to 5.5 V input to a stable 1.8 V output with ±0.5% accuracy. Features very low dropout voltage and high PSRR for noise reduction. Delivers up to 200 mA output current for compact electronics. Includes logic controlled electronic shutdown for power efficiency.

Low quiescent current operation extends battery life in portable devices. Compact DFN4 package footprint of 1 x 1 mm² for space-saving design. RoHS compliant and made in Italy for quality assurance. Ideal for smartphones, tablets, wearable devices, and other low power applications.

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