S-8338AAFA-T8T1G

Overview

The S-8338AAFA-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 internal oscillation frequency is adjustable up to 1.133 MHz via an external resistor connected to the ROSC pin. This specific variant features a fixed maximum duty ratio of 88%. The device incorporates under-voltage lockout (UVLO) and timer latch short-circuit protection circuits. It is 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 configuration for simplified circuit design

Applications

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

Procurement Notes

Verify the exact suffix against official ABLIC documentation to confirm pinout compatibility and electrical tolerances. Confirm RoHS compliance status through current datasheets or environmental statements. Ensure the selected package matches the target PCB footprint requirements before finalizing procurement orders.

Selection Notes

Select this component when a fixed duty ratio is acceptable for the boost topology. Compare against the S-8337 series if variable duty ratio control via external resistors is required. Verify that the operating temperature range meets the application's thermal constraints.

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 low minimum operating voltages. The S-8338 variant specifically distinguishes itself by maintaining a fixed maximum duty ratio, unlike the S-8337 which allows external adjustment.

Replacement Considerations

S-8338ABEC-T8T1G