S-8338ACGB-P8T1G

Overview

The S-8338ACGB-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 1.133 MHz via an external resistor on the ROSC pin. The device utilizes pulse width modulation (PWM) control with a fixed maximum duty ratio of 88.5%. It features under-voltage lockout (UVLO), timer latch short-circuit protection, and adjustable phase compensation through external components connected to the CC pin. The unit is housed in an 8-SON package.

Feature Summary

• Integrates reference voltage, oscillator, error amplifier, PWM controller, UVLO, and short-circuit protection circuits.
• Supports high-frequency operation up to 1.133 MHz for compact passive component sizing.
• Allows adjustment of operation stability and transient response via external RC networks on the CC pin.

Applications

• Power supply for LCD panels
• Portable systems operating on low voltage
• Step-up DC-DC converter designs

Procurement Notes

Verify the specific suffix ACGB against official datasheets to confirm output configuration and package type. Confirm RoHS compliance status as indicated in current manufacturer documentation. Ensure ordering quantities align with standard reel packaging requirements specified by ABLIC Inc. for this product line.

Selection Notes

Select this component when a fixed duty ratio boost controller is required for low-voltage applications. The S-8338 series differs from the S-8337 series by fixing the maximum duty ratio rather than allowing external adjustment. Consider the 1.8 V minimum operating voltage for battery-powered designs requiring efficient power management.

Part Context

This part belongs to the S-8337/8338 series of step-up switching regulator controllers. These devices are designed for portable electronics and display drivers. The S-8338 variant specifically provides a fixed maximum duty ratio, distinguishing it from the variable duty ratio options available in the S-8337 series.

Replacement Considerations

S-8338ABAA-P8T1G

FAQ

How is the internal oscillation frequency determined?

The internal oscillation frequency can be set up to 1.133 MHz via a resistor connected 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.