S-8338ABGB-T8T1G

Overview

The S-8338ABGB-T8T1G is a CMOS step-up switching regulator controller from the S-8338 series, manufactured by ABLIC Inc. It operates within an input voltage range of 1.8 V to 6 V and utilizes pulse width modulation (PWM) control. The device features a fixed maximum duty ratio of 88% and supports an internal oscillation frequency adjustable up to 1.133 MHz via an external resistor. Packaged in an 8-pin TSSOP format, it integrates essential protection circuits including under-voltage lockout and timer latch short-circuit protection.

Feature Summary

• Integrates under-voltage lockout and timer latch short-circuit protection for enhanced operational safety
• Supports high-frequency PWM control with adjustable oscillation settings via external components
• Features a fixed maximum duty ratio configuration suitable for standard boost applications

Applications

• Power supply units for LCD displays
• Portable electronic systems requiring low voltage operation
• Step-up DC-DC converter designs

Procurement Notes

Verify the specific suffix ABGB against official datasheets to confirm pinout and electrical characteristics match design requirements. Confirm package type is TSSOP-8. Check RoHS compliance status through manufacturer documentation. Ensure ordering quantities align with reel packaging specifications provided by the supplier.

Selection Notes

Select this component when a fixed duty ratio boost controller is required. Compare against the S-8337 series if variable duty ratio control via external resistors is necessary. Verify that the 1.8 V minimum operating voltage meets system power constraints. Ensure thermal management supports the -40°C to +85°C operating temperature range.

Part Context

This part belongs to the S-8338 series of high-frequency PWM control switching regulator controllers. It shares core architecture with the S-8337 series but differs in duty ratio flexibility. The series is designed for portable applications where low input voltage and compact size are critical. It functions as a controller rather than a complete integrated switcher.

Replacement Considerations

S-8338ACGA-T8T1G: Same series, different suffix indicating potential parameter or package variations; verify compatibility.