S-8338ACEB-T8T1G

Overview

The S-8338ACEB-T8T1G 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 and utilizes pulse width modulation (PWM) control. The internal oscillation frequency is adjustable up to 1.133 MHz via an external resistor on the ROSC pin. The maximum duty ratio is fixed at 88%. The device features under-voltage lockout (UVLO) and timer latch short-circuit protection, housed in an 8-pin TSSOP package.

Feature Summary

• Integrates UVLO and timer latch short-circuit protection for enhanced operational safety
• Supports high-frequency PWM operation with externally adjustable oscillation settings
• Features a fixed maximum duty ratio for simplified circuit design

Applications

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

Procurement Notes

Verify the specific suffix codes against official datasheets to confirm package type and electrical tolerances. Confirm RoHS compliance status through manufacturer documentation. Check for obsolescence notices or design-in restrictions before finalizing procurement plans.

Selection Notes

Select this component when a fixed duty ratio boost controller is required. Ensure the application supports the specified operating temperature range. Verify that the external component values align with the internal compensation requirements for stability.

Part Context

This part belongs to the S-8337/8338 series of high-frequency PWM control switching regulator controllers. The S-8338 variant distinguishes itself with a fixed maximum duty ratio, unlike the S-8337 which allows external adjustment. Both share similar core architectures and protection features.

Replacement Considerations

S-8338ABEB-T8T1G and S-8338ACCB-T8T1G are functionally equivalent parts within the same series offering identical electrical characteristics and package options.