RAA230215GSB#HA0

Overview

The RAA230215GSB#HA0 is a dual-output power management IC designed for microcontroller supply systems. It integrates one synchronous step-down (buck) converter and one low-dropout (LDO) regulator. The buck channel provides an adjustable output voltage ranging from 0.9 V to 4.4 V with a maximum current of 3 A. The switching frequency is fixed at 1 MHz, allowing for compact passive component selection. The device operates from a maximum input voltage of 5.5 V and is housed in a 20-pin HTSSOP package.

Feature Summary

• Integrates a high-current synchronous buck converter and a linear regulator in a single package
• Supports adjustable output voltages suitable for various logic levels
• Utilizes a fixed 1 MHz switching frequency to minimize external component size
• Designed specifically for powering complex microcontroller systems

Applications

• Microcontroller power supply systems
• Embedded system voltage regulation
• Portable electronic devices requiring efficient DC/DC conversion

Procurement Notes

Verify the specific suffix #HA0 against the manufacturer's latest documentation to confirm package type and lead-free compliance. Confirm availability status as some sources indicate this part may be obsolete or restricted to existing customers. Ensure the required output current and voltage ranges align with the 3 A buck and LDO specifications before ordering.

Selection Notes

Select this component when a combined solution for digital core voltage and analog/peripheral supply is required. The 3 A capacity of the buck converter supports high-performance processors. Consider the 1 MHz frequency trade-off between efficiency and filter size. Verify that the 5.5 V maximum input voltage matches the system's power source constraints.

Part Context

This part belongs to Renesas' RAA230 series, which focuses on integrated power solutions for embedded applications. The series typically combines switching regulators with LDOs to reduce board space and simplify design. The RAA230215 variant specifically targets applications needing a high-current buck stage alongside a clean LDO output.

Replacement Considerations

Check for direct pin-compatible alternatives within the RAA230 family. Verify if newer revisions have replaced this specific suffix. Cross-reference electrical parameters such as the 3 A limit and 1 MHz frequency to ensure functional equivalence in the target circuit.