MP161BGS-33-Z

Overview

The MP161BGS-33-Z is a specialized power management integrated circuit manufactured by Monolithic Power Systems. It functions as an ultra-low standby power switching regulator with an integrated current-limited switch, designed for professional PMIC applications. The device features a SOIC-16 surface-mount package and supports a wide operating temperature range from -40°C to +125°C. Key electrical parameters include a maximum output voltage of 5.1 V, an output voltage range of 4.9 V to 5.1 V, and a quiescent operating supply current of 600 uA. The unit has a power dissipation rating of 1.56 W and is classified under Voltage Regulators with multiple outputs.

Feature Summary

• Integrates a switching regulator with built-in current limiting capabilities
• Optimized for ultra-low standby power consumption in professional power solutions
• Supports shutdown functionality for enhanced system power management

Applications

• Smart plug reference designs utilizing non-isolated buck regulators
• Power solutions for IoT modules such as ESP8266 integration
• Professional electronic devices requiring efficient low-power regulation

Procurement Notes

Verify the specific suffix designation against official datasheets to confirm output voltage configuration, as variations exist within the MP161 series. Ensure compatibility with moisture sensitivity levels and reflow soldering profiles specified for the SOIC-16 package. Confirm that the selected variant meets the required input voltage constraints and thermal dissipation requirements for the target application environment before finalizing procurement orders.

Selection Notes

Select this component when designing systems that demand minimal standby current alongside regulated output stability. The integrated current limit simplifies protection circuitry, reducing external component count. Consider the SOIC-16 footprint for PCB layout constraints and verify that the 600 uA quiescent current aligns with battery life or efficiency targets. Evaluate thermal performance given the 1.56 W dissipation rating under expected load conditions.

Part Context

This part belongs to the Monolithic Power Systems portfolio focused on specialized power management ICs. It is categorized under switching voltage regulators and PMICs. The MP161 series is engineered for applications requiring high efficiency and low power states, distinguishing it from standard linear regulators. It complements MPS's broader AC/DC and DC/DC solution offerings for modern electronic systems.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Verify pin-to-pin compatibility and electrical parameter equivalence with alternative MP161 variants or other MPS switching regulators before considering substitution.