S-8338AAIB-P8T1G

Overview

The S-8338AAIB-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 1.8 V to 6 V and features an internal oscillator adjustable up to 1.134 MHz 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, current limit protection, and enable functionality. The component is housed in an 8-SON package measuring 2.9 x 2.8 mm and supports an operating temperature range of -40°C to 85°C.

Feature Summary

• Integrates reference voltage, error amplifier, and PWM controller for efficient step-up regulation.
• Features timer latch short-circuit protection circuit for enhanced reliability.
• Supports low minimum operating voltage suitable for portable systems.

Applications

• Power supply for LCD displays
• Portable electronic systems requiring low voltage operation

Procurement Notes

Verify the specific suffix 'P8' indicates the 8-SON package configuration distinct from TSSOP variants. Confirm RoHS compliance status through official datasheets or environmental reports. Check for active design recommendations as some series members may be marked obsolete. Ensure ordering documentation matches the exact part number to avoid package mismatches.

Selection Notes

Select this model when a compact 8-SON footprint is required for boost applications. Choose based on the need for high-frequency operation up to 1.134 MHz to minimize passive component size. Consider the 1.8 V minimum input voltage for battery-powered designs. Verify thermal requirements against the specified -40°C to 85°C ambient range.

Part Context

This component belongs to the S-8337/8338 series of high-frequency PWM control switching regulator controllers. The series is designed for step-up topologies with integrated protection circuits. The S-8338 variant specifically offers frequency adjustment capabilities and robust control features for power management ICs in small form factors.

Replacement Considerations

S-8338ABEA-P8T1G and S-8338AADB-P8T1G are documented equivalents within the same series offering identical functional specifications and package types. Cross-reference pinouts and electrical characteristics before substitution.