S-8521E33MC-BLST2U

Overview

The S-8521E33MC-BLST2U is a Buck Step-Down Transistor Driver Voltage Regulator from ABLIC Inc. It operates with a frequency of 300kHz and supports a positive output voltage of 3.3V. The input voltage range is 2.5V to 10V, with a maximum output current of 13.2mA. The component is housed in a SOT-23-5 package.

Feature Summary

• Step-down DC-DC controller IC
• Fixed 3.3V positive output
• 300kHz switching frequency

Applications

• Battery-powered portable devices
• Low-power embedded systems
• Consumer electronics power management

Procurement Notes

Verify the exact suffix (e.g., BLST2U vs BLST2G) as it may indicate specific packaging or environmental compliance variations. Confirm availability status directly with authorized distributors, as lifecycle status can change. Ensure the selected variant matches your PCB footprint requirements for the SOT-23-5 package.

Selection Notes

Select this component when a fixed 3.3V output is required from an input range of 2.5V to 10V. It is suitable for applications needing low current delivery up to 13.2mA. Consider the SOT-23-5 package size for space-constrained designs. Verify thermal performance if operating near maximum current limits.

Part Context

This part belongs to the S-8521 series of buck regulators from ABLIC. It is designed for efficient step-down conversion in portable applications. The series typically offers low quiescent current and compact packaging options like SOT-23-5 to support miniaturization in modern electronic devices.

Replacement Considerations

S-8521E33MC-BLST2G is a confirmed substitute with identical electrical specifications but potentially different packaging or environmental certification. Verify pin compatibility and thermal characteristics before substitution.