S-8338AADA-P8T1G

Overview

The S-8338AADA-P8T1G is a CMOS step-up switching regulator controller from the S-8338 series by ABLIC Inc. It operates within a supply voltage range of 1.8V to 6V and supports an internal oscillation frequency adjustable 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 features integrated under-voltage lockout and timer latch short-circuit protection, functioning as a single-output positive boost DC-DC switch controller in an 8-SON package.

Feature Summary

• Integrates PWM control logic with under-voltage lockout and short-circuit protection circuits for reliable operation.
• Supports high-frequency switching with an internal oscillator adjustable up to 1.134MHz to minimize external component size.
• Enables flexible design through external setting of oscillation frequency and maximum duty ratio.

Applications

• Power supply units for LCD panels
• Portable electronic systems operating on low voltage sources

Procurement Notes

Verify the specific suffix P8T1G against the manufacturer datasheet to confirm the exact output configuration and pin assignment. Confirm RoHS compliance status and check for any product change notifications regarding material or packaging updates before finalizing procurement specifications.

Selection Notes

Select this component when designing boost converters requiring input voltages as low as 1.8V. Ensure the application demands a non-synchronous topology and can accommodate the specified 88.5% maximum duty cycle. Verify that the required switching frequency falls within the adjustable range supported by the external resistor network.

Part Context

This part belongs to the S-8337/8338 series of high-frequency step-up switching regulator controllers. The S-8338 variant specifically allows for the adjustment of the maximum duty ratio via an external resistor, distinguishing it from fixed-duty counterparts within the same family.

Replacement Considerations

S-8338AADB-P8T1G: Alternative package option available within the same series.