S-8338AAAB-P8T1G

Overview

The S-8338AAAB-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 ratio of 88.5%. It features built-in under-voltage lockout (UVLO) and timer latch short-circuit protection circuits. The component is housed in an 8-SON package measuring 2.9 x 2.8 mm and is rated for operation between -40°C and +85°C.

Feature Summary

• Integrates UVLO and timer latch short-circuit protection circuits for enhanced system reliability.
• Supports high-frequency PWM control with internal oscillation frequencies 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 devices operating on low voltage
• Step-up DC-DC converter designs

Procurement Notes

Verify the specific output configuration suffix against official documentation, as variations exist within the S-8338 family. Confirm the package type matches the required footprint, as both TSSOP and SON variants are available. Ensure compliance with RoHS3 standards and check for any product change notifications regarding material composition before finalizing procurement.

Selection Notes

Select this component when designing boost converters requiring a wide input voltage range down to 1.8 V. The choice depends on the required switching frequency and the need for integrated short-circuit protection. Verify that the external components support the 88.5% maximum duty cycle and that the thermal performance meets the -40°C to +85°C operating temperature requirements.

Part Context

This part belongs to the S-8337/8338 series of step-up switching regulator controllers. The S-8338 variant typically offers higher maximum duty ratios compared to the S-8337 series. Both series share similar core architectures but differ in specific control characteristics and output configurations defined by their ordering suffixes.

Replacement Considerations

S-8338AADB-P8T1G and S-8338ACDC-P8T1G are documented members of the same series with identical packaging and electrical specifications. Verify pin compatibility and specific output configuration details before substitution.