S-8338ACFC-P8T1G

Overview

The S-8338ACFC-P8T1G is a CMOS step-up switching regulator controller from the S-8337/8338 series, manufactured by ABLIC Inc. It operates with an input voltage range of 1.8 V to 6 V and supports a switching frequency between 257.4 kHz and 1.134 MHz. The device features a maximum duty cycle of 88.5% and functions within a temperature range of -40°C to 85°C. It utilizes pulse width modulation (PWM) control and is housed in an 8-SMD, flat lead package, specifically identified as 8-SON(A)(2.9x2.8).

Feature Summary

• Integrates under voltage lockout circuitry and timer latch short-circuit protection for enhanced system reliability.
• Supports external frequency adjustment via a resistor connected to the ROSC pin, allowing flexibility up to 1.134 MHz.
• Designed for low-voltage operation starting at 1.8 V, suitable for portable systems.

Applications

• Power supply units for LCD displays
• Portable electronic systems operating on low voltage
• Step-up DC-DC conversion circuits

Procurement Notes

Verify the specific suffix 'P8' against official documentation to confirm the exact package type and tape/reel specifications. Confirm RoHS compliance status and check for any product change notifications or obsolescence notices directly from ABLIC Inc. before finalizing procurement plans.

Selection Notes

Select this component when a boost converter controller is required with a wide adjustable frequency range and low minimum operating voltage. Ensure the design accommodates the 8-SON package dimensions and verify that the external components support the specified PWM control mode and duty cycle limits.

Part Context

This part belongs to the S-8338 series of high-frequency PWM control switching regulator controllers. It shares core architectural similarities with the S-8337 series but differs in specific control characteristics such as duty ratio management. The series is designed for applications requiring efficient power conversion in compact form factors.

Replacement Considerations

The S-8338ABGB-T8T1G is a documented alternative within the same series offering similar voltage-mode control and TSSOP-8 packaging options. Verify functional equivalence regarding the oscillator and protection circuits before substitution.