S-8338ABBC-P8T1G

Overview

The S-8338ABBC-P8T1G is a CMOS step-up switching regulator controller from the S-8338 series by ABLIC Inc. It operates with a supply voltage range of 1.8V to 6V and features an adjustable internal oscillation frequency up to 1.134MHz via an external resistor. The device utilizes pulse-width modulation (PWM) control with a maximum duty cycle of 88.5%. It includes under-voltage lockout (UVLO) and timer latch short-circuit protection circuits. The component is housed in an 8-SON(A) package measuring 2.9x2.8mm, suitable for surface-mount installation.

Feature Summary

• Integrates UVLO and timer latch short-circuit protection for enhanced system reliability
• Supports high-frequency operation with adjustable oscillation up to 1.134MHz
• Enables low-voltage operation starting at 1.8V input
• Features PWM control with a maximum duty ratio of 88.5%

Applications

• Power supplies for LCD panels
• Portable electronic systems operating on low voltage
• Step-up DC-DC converter designs

Procurement Notes

Verify the specific suffix P8T1G corresponds to the 8-SON(A) package configuration. Confirm RoHS compliance status as per the latest manufacturer documentation. Check for obsolescence notices or design-in restrictions indicated by distributors. Ensure ordering quantities align with standard reel packaging requirements specified by ABLIC Inc.

Selection Notes

Select this controller when designing boost converters requiring operation from low input voltages down to 1.8V. The adjustable frequency feature allows optimization for external component size versus efficiency trade-offs. Verify that the required output voltage and current capabilities are supported by the external power stage components connected to this controller IC.

Part Context

This component belongs to the S-8337/8338 series of step-up switching regulator controllers. The S-8338 variant typically offers higher frequency capabilities compared to the S-8337 series. These devices are designed for portable applications where space and low standby current are critical constraints.

Replacement Considerations

S-8338ACCC-T8T1G

FAQ

What is the maximum oscillation frequency?

The internal oscillation frequency can be set up to 1.134MHz using an external resistor connected to the ROSC pin.

Does the device include short-circuit protection?

Yes, it incorporates a timer latch short-circuit protection circuit to safeguard against output faults.