S-8338AAEA-P8T1G

Overview

The S-8338AAEA-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 switching frequency of 1.134 MHz. The device utilizes pulse width modulation (PWM) control with a maximum duty ratio of 88.5%. Designed for surface-mount applications, it is housed in an 8-SON package measuring 2.9 x 2.8 mm. The component functions as a positive output boost DC-DC switching controller suitable for low-voltage portable systems.

Feature Summary

• Integrates internal oscillator allowing frequency setting up to 1.133 MHz via external resistor
• Includes timer latch short-circuit protection circuit for enhanced reliability
• Features under voltage lockout (UVLO) circuit for stable operation at low voltages

Applications

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

Procurement Notes

Verify the specific suffix P8T1G against official datasheets to confirm package type and tape-and-reel specifications. Confirm RoHS compliance status and REACH registration details prior to integration. Ensure design compatibility with the 8-SON footprint dimensions and thermal requirements specified in the manufacturer documentation.

Selection Notes

Select this component when a low minimum operating voltage of 1.8 V is required for boost applications. Consider the 88.5% maximum duty cycle limit for high step-up ratios. Verify that the external resistor connected to the ROSC pin can achieve the desired switching frequency within the specified range without exceeding component tolerances.

Part Context

This part belongs to the S-8337/8338 series of high-frequency PWM control switching regulator controllers. The series is characterized by its ability to operate from very low input voltages, making it distinct from standard regulators requiring higher inputs. It shares core architecture with the S-8337 series but differs in specific control pin configurations and duty cycle adjustment methods.

Replacement Considerations

S-8338ABEA-P8T1G and S-8338ACDC-P8T1G are documented variants within the same series offering similar boost controller functionality.