S-8333CBDA-I8T1G

Overview

The S-8333CBDA-I8T1G is a DC-DC switching controller IC manufactured by ABLIC Inc., designed for step-up (boost) voltage conversion applications. It operates within an input supply voltage range of 1.8V to 6V and supports a single output phase. The device features a variable switching frequency ranging from 280kHz to 1.08MHz, allowing for optimization of external component size and efficiency. It offers a maximum duty cycle of 88.5% and utilizes an 8-terminal package configuration.

Feature Summary

• Integrated boost regulator topology for positive output step-up DC-DC conversion
• Adjustable switching frequency capability spanning 280kHz to 1.08MHz
• Wide input supply voltage operation from 1.8V to 6V
• Single-output architecture with high maximum duty cycle

Applications

• Portable electronic devices requiring battery voltage boosting
• Sensor signal conditioning circuits needing stable higher voltage rails
• Low-power embedded systems utilizing single-phase power management
• General-purpose DC-DC converter designs in consumer electronics

Procurement Notes

Verify the specific ordering suffix and package variant against the official ABLIC datasheet before procurement. Confirm that the 8-terminal package matches your PCB footprint requirements. Ensure the selected frequency range aligns with your inductor selection. Check current production status and lead times directly with authorized distributors or the manufacturer to avoid obsolescence risks.

Selection Notes

Select this component when a wide input voltage range up to 6V is required for boost applications. Consider the adjustable frequency feature if minimizing passive component size is a priority. Evaluate the 88.5% duty cycle limit against your target output voltage and minimum input conditions. Ensure compatibility with the 1.8V lower supply threshold for low-voltage battery systems.

Part Context

This part belongs to the S-8333 series of switching controllers from ABLIC Inc., categorized under PMIC - Power Management ICs. It is distinct from other series like S-8337 or S-8338 which may differ in frequency ranges or package types. The S-8333 series generally targets efficient step-up conversion solutions for portable and battery-operated equipment.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Verify cross-compatibility with other ABLIC boost controllers such as the S-8338 series only if pinout and electrical specifications match exactly.