S-8337ABBC-T8T1G

Overview

The S-8337ABBC-T8T1G 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 utilizes pulse width modulation (PWM) control. The device supports an internal oscillation frequency adjustable up to 1.133 MHz via an external resistor on the ROSC pin. Maximum duty ratio is configurable through the RDuty pin. It features under-voltage lockout (UVLO), timer latch short-circuit protection, and phase compensation adjustment via the CC pin. The component is housed in an 8-TSSOP package with a width of 4.40 mm.

Feature Summary

• Integrates reference voltage, oscillator, error amplifier, PWM controller, UVLO, and short-circuit protection circuits.
• Allows external setting of oscillation frequency up to 1.133 MHz and maximum PWM duty ratio.
• Supports phase compensation and gain adjustment for operation stability and transient response.

Applications

• Power supply for LCD panels
• Portable systems operating on low voltage

Procurement Notes

Verify the specific suffix 'BB' against official ABLIC documentation to confirm exact electrical parameters and availability status. Confirm RoHS compliance and REACH status prior to ordering. Check for any product change notifications or design-in restrictions associated with this specific part number variant.

Selection Notes

Select this controller for applications requiring low minimum operating voltage and high-frequency step-up regulation. Ensure external components match the required frequency and duty ratio settings. Verify thermal performance within the -40°C to 85°C operating temperature range for the TSSOP-8 package.

Part Context

This component belongs to the S-8337/8338 Series of high-frequency PWM control switching regulator controllers. The S-8337 series specifically allows user-configurable maximum duty ratios, distinguishing it from the fixed-duty S-8338 series. Both series share core architecture including UVLO and short-circuit protection.

Replacement Considerations

S-8337AAEB-T8T1G, S-8337ACDC-T8T1G, S-8337AAHB-T8T1G, S-8337ACGB-T8T1G, S-8337ACCC-T8T1G, S-8337AAFC-T8T1G