ISL9120IINZ-T7A

Voltage Regulators - DC DC Switching Regulators Overview

The ISL9120IINZ-T7A is a synchronous buck-boost switching regulator IC manufactured by Renesas Electronics Corporation. It operates within an input voltage range of 1.8V to 5.5V and provides a fixed output voltage of 3.3V. The device supports a maximum output current of 800mA with a single positive output configuration. It utilizes a 9-WLCSP (1.41x1.41mm) surface-mount package. The component is designed for high efficiency in power management applications requiring flexible input-to-output voltage relationships.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Synchronous buck-boost topology enables efficient voltage regulation across varying input conditions
• Integrated synchronous rectification reduces external component count and improves efficiency
• Compact WLCSP packaging facilitates space-constrained board designs

Voltage Regulators - DC DC Switching Regulators Applications

• Smart earbuds case chargers
• Portable consumer electronics
• Battery-powered devices with variable input sources

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix 'T7A' against the official Renesas datasheet to confirm it denotes the tape-and-reel packaging variant. Ensure compatibility with existing BOM requirements regarding the 9-WLCSP footprint and thermal characteristics. Confirm RoHS compliance status as per the latest manufacturer documentation before finalizing procurement orders.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this part when a fixed 3.3V output is required from a 1.8V to 5.5V input source. The 800mA current rating suits low-power portable applications. Consider the WLCSP package size constraints and soldering requirements during PCB layout. Compare against adjustable variants if precise voltage tuning is needed instead of the fixed 3.3V option.

Voltage Regulators - DC DC Switching Regulators Part Context

This component belongs to the ISL9120 family of buck-boost regulators, which are optimized for mobile and wearable applications. The family includes both adjustable and fixed output versions in various packages such as TQFN and WLCSP. The ISL9120 series is widely used in smart earbuds and other compact battery-operated devices requiring efficient power conversion.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Check for ISL9120IINZ-TR5654, which shares the same electrical specifications but may differ in reel quantity or minor manufacturing revisions. Verify pinout and thermal pad configurations match exactly. Consult Renesas PCN documents for any obsolescence notices or alternate assembly facility changes affecting this specific part number.