S-8338ABEC-T8T1G

Overview

The S-8338ABEC-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 reference voltage circuit, oscillator, error amplifier, PWM controller, UVLO, and short-circuit protection
• Supports low minimum operating voltage suitable for portable systems
• Features fixed maximum duty ratio for simplified design
• Allows phase compensation and gain adjustment via external components

Applications

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

Procurement Notes

Verify the specific suffix against official ABLIC documentation to confirm package type and electrical characteristics. Ensure compatibility with required input voltage ranges and switching frequencies. Confirm RoHS compliance status through current datasheets. Check for any recent product change notifications that may affect specifications or availability.

Selection Notes

Select this component when a fixed duty ratio boost controller is required. Compare with the S-8337 series if variable duty ratio control via external resistors is necessary. Consider the 8-TSSOP package constraints for PCB layout. Verify thermal performance requirements against the specified operating temperature range.

Part Context

This part belongs to the S-8337/8338 series of high-frequency PWM control switching regulator controllers. The series is designed for applications requiring efficient power conversion at low voltages. The S-8338 variant specifically distinguishes itself by offering a fixed maximum duty ratio, contrasting with the adjustable duty ratio found in the S-8337 series.

Replacement Considerations

S-8338ABEB-T8T1G is a documented substitute within the same series.