RAA2128324GSP#HA0

Overview

The RAA2128324GSP#HA0 is a switching voltage regulator featuring a buck converter topology with dual linear regulators, housed in an 8-lead SOIC package. It supports an input voltage range of 4.5 V to 72 V and provides three regulated outputs: a 500 mA buck output and two LDOs rated at 50 mA and 100 mA. Fixed output voltages include 3 V, 5 V, 6 V, and 12 V. The device operates with a switching frequency of 350 kHz and draws 325 uA quiescent current, extending to 40 uA in shutdown mode. It functions within a temperature range of -40°C to +125°C.

Feature Summary

• Integrates a high-voltage buck regulator with dual low-dropout linear regulators for combined power delivery.
• Supports wide input voltage ranges up to 72 V for robust system operation.
• Includes a shutdown feature to minimize power consumption during inactive periods.

Applications

• Industrial control systems requiring multi-rail power distribution
• Automotive electronics operating under high voltage conditions
• Embedded systems needing isolated or distinct voltage domains

Procurement Notes

Verify the specific suffix code against official Renesas documentation to confirm pin compatibility and thermal characteristics. Ensure the selected variant matches the required fixed output voltage configuration. Confirm moisture sensitivity level handling procedures are followed during assembly to maintain component integrity.

Selection Notes

Select this component when a single solution is needed to provide both switched and linear regulation from a high-voltage source. Consider the 350 kHz switching frequency for passive component sizing. Evaluate the total output current capabilities against load requirements to ensure adequate headroom for all three channels simultaneously.

Part Context

This part belongs to the RAA212832 series of power management ICs designed by Renesas Electronics Corporation. The series focuses on providing integrated power solutions for applications requiring multiple voltage rails from a single input source, combining efficiency with simplicity.

Replacement Considerations

Consult official Renesas substitution guides for verified alternatives. Cross-reference pinouts and electrical specifications carefully before replacing to ensure functional compatibility without circuit modification.