S-8338ACBA-T8T1G

Overview

The S-8338ACBA-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 on the ROSC pin. The device features a fixed maximum duty ratio of 88% and includes under-voltage lockout (UVLO) and timer latch short-circuit protection circuits.

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

Procurement Notes

Verify the specific suffix codes against official documentation to confirm package type and tape/reel specifications. Ensure compatibility with required operating temperatures and input voltage ranges before integration. Confirm RoHS compliance status through current manufacturer declarations.

Selection Notes

Select this component when a fixed duty ratio is acceptable for the boost topology. Compare against the S-8337 series if variable maximum duty ratios are required for specific output voltage configurations. Verify that the external oscillator resistor values align with the desired switching frequency limits.

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 and compact power management solutions in portable devices.

Replacement Considerations

S-8338ABEC-T8T1G

FAQ

How is the oscillation frequency adjusted?

The internal oscillation frequency can be set up to 1.133 MHz by connecting a resistor to the ROSC pin.

What protection features are included?

The device includes an under-voltage lockout circuit (UVLO) and a timer latch short-circuit protection circuit.