S-8333ABGC-T8T1G

Overview

The S-8333ABGC-T8T1G is a CMOS step-up switching regulator controller from the S-8333 Series by ABLIC Inc. It integrates a reference voltage circuit, oscillator, error amplifier, PWM controller, under-voltage lockout (UVLO), and timer latch short-circuit protection. The device operates with a minimum input voltage of 1.8 V and supports an internal oscillation frequency up to 1.08 MHz via an external resistor on the ROSC pin. Maximum duty ratio is adjustable through the RDuty pin, while phase compensation is set via the CC pin. It is housed in an 8-pin TSSOP package.

Feature Summary

• Integrates high-frequency PWM control with adjustable oscillation frequency for compact passive component design.
• Features low minimum operating voltage suitable for portable systems powered by single-cell batteries.
• Includes built-in under-voltage lockout and timer latch short-circuit protection for enhanced reliability.

Applications

• Power supply circuits for LCD panels
• Portable electronic devices requiring low-voltage operation
• Battery-powered systems utilizing single-cell lithium-ion or lithium-polymer sources

Procurement Notes

Verify the specific suffix code against the manufacturer's official datasheet to confirm output configuration and tolerance specifications. Ensure compatibility with external components such as inductors and capacitors based on the selected switching frequency and duty cycle settings. Confirm RoHS compliance status and packaging details directly with the supplier prior to ordering.

Selection Notes

Select this component when designing boost converters requiring adjustable switching frequencies up to 1.08 MHz. It is appropriate for applications needing precise duty cycle control via external resistors. Consider the 1.8 V minimum operating voltage constraint when choosing input power sources. Evaluate thermal performance and PCB layout requirements for the TSSOP-8 package during integration.

Part Context

This part belongs to the S-8333 Series of step-up switching regulator controllers. The series is characterized by its CMOS technology and ability to operate at low input voltages. It serves as a core control element in DC-DC converter designs, distinguishing itself from complete regulator ICs by providing only the control logic and driver signals.

Replacement Considerations

Direct replacements within the same series include S-8333AAHB-T8T1G and S-8333AACB-T8T1G. Verify that the substitute part shares identical pin configurations and electrical characteristics before substitution. Cross-reference specific suffix codes to ensure matching output drive capabilities and tolerance levels.