S-8337ACGB-P8T1G

Overview

The S-8337ACGB-P8T1G is a CMOS step-up switching regulator controller from the S-8337 series, manufactured by ABLIC Inc. It operates within an input 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 and timer latch short-circuit protection. The component is housed in an 8-SON package.

Feature Summary

• Integrates reference voltage, oscillator, error amplifier, and PWM controller for efficient step-up regulation.
• Supports low minimum operating voltage suitable for portable systems.
• Includes built-in under-voltage lockout and short-circuit protection circuits.

Applications

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

Procurement Notes

Verify the specific suffix codes against official ABLIC documentation to ensure correct packaging and electrical characteristics. Confirm RoHS compliance status and lead times directly with authorized distributors or the manufacturer. Ensure ordering quantities align with standard reel sizes specified in the product datasheet.

Selection Notes

Select this controller when designing boost converters requiring high-frequency operation and adjustable duty cycles. Consider the external component requirements for frequency setting and phase compensation. Evaluate thermal performance and package constraints relative to the target application's power density needs.

Part Context

This part belongs to the S-8337/8338 series of high-frequency PWM control switching regulator controllers. The series is designed for applications demanding compact solutions with low input voltage capabilities. Variants differ primarily in maximum duty ratio settings and package types.

Replacement Considerations

S-8337ACDC-T8T1G

FAQ

How is the oscillation frequency adjusted?

The internal oscillation frequency can be set up to 1.133 MHz by connecting a resistor to the ROSC pin.

What protection features are included?

The device includes an under-voltage lockout circuit (UVLO) and a timer latch short-circuit protection circuit.