A6984TR

Voltage Regulators - DC DC Switching Regulators Overview

The STEVAL-ISA200V1 is an evaluation board for the A6984 synchronous step-down switching regulator. It supports an input voltage range of 4.5 V to 36 V and provides an adjustable output voltage starting from 0.9 V, with a fixed 3.3 V option requiring no external resistor divider. The board facilitates testing of the regulator's 400 mA DC output current capability. Key operational parameters include a light load quiescent current of 75 µA in Low Consumption Mode (LCM) and a shutdown current of 13 µA. The switching frequency is adjustable between 250 kHz and 600 kHz.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Supports Low Consumption Mode (LCM) for maximizing efficiency at light loads during car parking applications
• Features Low Noise Mode (LNM) with almost constant switching frequency for sensitive audio or sensor applications
• Includes PGOOD open collector output to implement output voltage sequencing during power-up
• Utilizes synchronous rectification for high efficiency at medium-to-heavy loads

Voltage Regulators - DC DC Switching Regulators Applications

• Automotive systems requiring efficient power regulation during parking modes
• Car audio and sensor circuits demanding low noise performance
• Evaluation and design verification of the A6984 buck converter topology

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify that the specific order corresponds to the STEVAL-ISA200V1 evaluation kit rather than the standalone A6984TR component. Confirm compatibility with the target A6984 device revision. Ensure the evaluation board meets the required input voltage and output current specifications for the intended prototype testing phase before finalizing procurement.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this evaluation board when designing circuits based on the A6984 regulator to validate performance under specified automotive conditions. It is suitable for engineers needing to test LCM and LNM modes without constructing custom hardware. Consider the board's ability to demonstrate sequencing via PGOOD if system startup timing is critical to the application design.

Voltage Regulators - DC DC Switching Regulators Part Context

This evaluation tool is designed specifically for the A6984, a 36 V, 400 mA synchronous step-down switching regulator qualified to AEC-Q100 standards. The A6984 integrates constant on-time control and pulse-by-pulse current protection. The STEVAL-ISA200V1 allows developers to assess the regulator's thermal performance and electrical characteristics in a compact form factor suitable for bench testing.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Publicly confirmed substitute part numbers for the STEVAL-ISA200V1 are not available in the provided documentation. For alternative evaluation platforms, consult STMicroelectronics catalogs for other A6984-based kits or generic buck converter evaluation boards compatible with similar pinouts and voltage ranges.