S-8337ACBA-P8T1G

Overview

The S-8337ACBA-P8T1G is a CMOS step-up switching regulator controller from the S-8337 series, manufactured by ABLIC Inc. It operates within a supply voltage range of 1.8 V to 6 V and supports an internal oscillation frequency adjustable up to 1.133 MHz via an external resistor on the ROSC pin. The device utilizes pulse width modulation (PWM) control with a maximum duty ratio configurable through an external resistor on the RDuty pin. It features phase compensation adjustment capabilities via components connected to the CC pin. The component is housed in an 8-SON package measuring 2.9 mm by 2.8 mm and is rated for an operating temperature range of -40°C to 85°C.

Feature Summary

• Integrates under voltage lockout and timer latch short-circuit protection circuits
• Allows external setting of oscillation frequency and PWM maximum duty ratio
• Supports phase compensation and gain value adjustments for stability

Applications

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

Procurement Notes

Verify the specific suffix P8T1G corresponds to the 8-SON(A) package configuration rather than TSSOP variants. Confirm RoHS compliance status as indicated in official documentation. Ensure ordering quantities align with manufacturer standard packaging requirements. Validate that the component designation matches the exact electrical specifications required for the target application circuit design.

Selection Notes

Select this controller when designing boost converter topologies requiring high-frequency operation up to 1.133 MHz. Choose this part if the application demands flexible duty cycle control via external resistors rather than fixed ratios. Consider this component for space-constrained designs utilizing the compact 8-SON package format. Verify compatibility with input voltages starting at 1.8 V for low-power portable system integration.

Part Context

This component belongs to the S-8337/8338 series of high-frequency PWM control switching regulator controllers. The S-8337 variant specifically distinguishes itself from the S-8338 series by offering externally adjustable maximum duty ratios, whereas the S-8338 maintains a fixed maximum duty ratio. Both series share core architectural elements including reference voltage circuits, error amplifiers, and UVLO functions.

Replacement Considerations

S-8337ACDC-T8T1G serves as a verified alternative within the same series featuring identical functional characteristics.