S-8338ABGB-P8T1G

Overview

The S-8338ABGB-P8T1G is a CMOS step-up switching regulator controller from the S-8338 series by ABLIC Inc. It operates within an input voltage range of 1.8 V to 6 V, with a nominal supply of 3.3 V. The device utilizes pulse width modulation (PWM) control and supports a maximum switching frequency of 1.133 MHz. It is housed in an 8-pin TSSOP package and functions as a voltage-mode controller designed for low-voltage portable applications.

Feature Summary

• Integrates UVLO and timer latch short-circuit protection circuits
• Supports external frequency setting via ROSC pin up to 1.133 MHz
• Enables duty ratio control through external resistor connection

Applications

• Power supply for LCD modules
• Portable systems operating on low voltage
• Step-up DC-DC converter designs

Procurement Notes

Verify the specific suffix P8T1G against official datasheets to confirm package type and tape-and-reel specifications. Ensure compatibility with required switching frequencies and duty cycle constraints defined by external components. Confirm RoHS compliance status and check for any product change notifications affecting material composition or manufacturing location prior to procurement.

Selection Notes

Select this component when a low minimum operating voltage of 1.8 V is required for step-up regulation. Consider the 1.133 MHz maximum frequency capability for compact passive component sizing. Evaluate the need for external frequency and duty ratio adjustments. Verify that the TSSOP-8 package fits the available PCB footprint and thermal requirements for the target application environment.

Part Context

This part belongs to the S-8337/8338 Series of high-frequency PWM control switching regulator controllers. The series is characterized by its ability to operate at low voltages, making it suitable for battery-powered devices. The S-8338 variant specifically offers flexible configuration options for frequency and duty cycle through external resistors, distinguishing it from fixed-parameter alternatives.

Replacement Considerations

S-8338ABEC-T8T1G is a parameter-equivalent alternative within the same series offering similar electrical characteristics.