ADP2138ACBZ-3.0-R7 Step-Down DC-DC Regulator

The ADP2138ACBZ-3.0-R7 is a high-performance, integrated fixed output voltage, synchronous step-down DC-DC regulator from the renowned manufacturer Analog Devices Inc. Designed to deliver a 3.0V fixed output from an input voltage range of 2.3V to 5.5V, this regulator is an ideal power supply solution for a wide range of applications, including portable and battery-powered devices, where efficiency and compactness are critical.

Equipped with a peak-current mode architecture, the ADP2138ACBZ-3.0-R7 provides excellent transient response, ensuring stable operation during sudden changes in load conditions. The device boasts a high efficiency that can reach up to 95%, which is achieved through its low R<sub>DS(ON) internal switches and by operating in a pulse frequency modulation (PFM) mode under light load conditions, thereby reducing quiescent current and extending battery life.

This regulator comes in a compact 8-lead, 3mm x 3mm LFCSP_WD package, making it suitable for space-constrained applications. The ADP2138ACBZ-3.0-R7 also features an array of protective measures, including overcurrent protection (OCP), undervoltage lockout (UVLO), and thermal shutdown (TSD), enhancing the reliability and longevity of the end application.

Key features of the ADP2138ACBZ-3.0-R7 include:

• Fixed 3.0V output voltage
• Input voltage range: 2.3V to 5.5V
• High efficiency: Up to 95%
• Low quiescent current for increased battery life
• Excellent transient response
• Integrated synchronous rectification
• Overcurrent protection and thermal shutdown
• Compact 8-lead LFCSP_WD package

With its combination of high efficiency, robust protection features, and compact size, the ADP2138ACBZ-3.0-R7 is an excellent choice for designers looking to optimize their power management solutions. Whether it's for handheld devices, wireless peripherals, or IoT products, this regulator from Analog Devices Inc. ensures a reliable and efficient power supply that meets the stringent requirements of modern electronic applications.