S-8338AAEC-P8T1G

Overview

The S-8338AAEC-P8T1G is a CMOS step-up switching regulator controller from the S-8338 series by ABLIC Inc. It operates within an input voltage range of 1.8 V to 6 V and supports a maximum oscillation frequency of 1.134 MHz. The device utilizes pulse width modulation (PWM) control with a maximum duty cycle of 88.5%. Designed for low-voltage applications, it features under-voltage lockout and timer latch short-circuit protection. The component is housed in an 8-SON package measuring 2.9 x 2.8 mm and functions across a temperature range of -40°C to 85°C.

Feature Summary

• Supports high-frequency operation up to 1.134 MHz via external resistor setting
• Incorporates internal under-voltage lockout and timer latch short-circuit protection circuits
• Enables flexible frequency adjustment and duty ratio control through external components
• Designed for low minimum operating voltage suitable for portable systems

Applications

• Power supply units for LCD panels
• Portable electronic devices requiring low voltage operation
• Battery-powered systems utilizing single-cell lithium-ion sources
• General-purpose DC-DC step-up converter designs

Procurement Notes

Verify the specific suffix codes against official manufacturer documentation to ensure correct pin configuration and electrical characteristics. Confirm that the 8-SON package dimensions align with PCB footprint requirements. Check for any recent product change notifications regarding material or design updates. Ensure compatibility with the intended switching frequency settings before finalizing procurement.

Selection Notes

Select this controller when designing boost converters requiring frequencies above 1 MHz to minimize passive component size. Consider the 1.8 V minimum operating voltage for applications powered by single-cell batteries. Evaluate the need for external synchronization if noise immunity is critical. Verify that the available duty cycle range meets the required output voltage step-up ratio for the target application.

Part Context

This component belongs to the S-8337/8338 series of high-frequency PWM switching regulator controllers. It shares architectural similarities with other members like the S-8338ABEA-P8T1G but differs in specific electrical parameters and package options. The series is designed to replace linear regulators in low-voltage portable applications where efficiency and component size are primary concerns.

Replacement Considerations

Direct substitutes within the same series include variants such as S-8338ABEA-P8T1G or S-8338ACDC-P8T1G. These alternatives share identical core functionality and pinouts but may differ in specific tolerance levels or factory packaging. Always verify datasheet specifications for the exact replacement part to ensure parameter matching.