S-8337ACHA-P8T1G

Overview

The S-8337ACHA-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 features an internal oscillator with a frequency settable up to 1.133 MHz via an external resistor connected to the ROSC pin. It is housed in an 8-pin SON package.

Feature Summary

• Integrates UVLO and timer latch short-circuit protection circuits for enhanced reliability.
• Allows adjustment of maximum duty ratio through an external resistor on the RDuty pin.
• Supports phase compensation and gain tuning via external components on the CC pin.

Applications

• Power supply for LCD modules
• Portable electronic systems operating on low voltage

Procurement Notes

Verify the specific suffix P8T1G against official documentation to confirm the exact package type and reel specifications. Confirm RoHS compliance status and lead times directly with the manufacturer or authorized distributors before procurement.

Selection Notes

Select this component when designing boost converters requiring high-frequency operation up to 1.2 MHz. Ensure external components match the required oscillation frequency and duty ratio settings defined in the datasheet for stable PWM control.

Part Context

This part belongs to the S-8337/8338 series of high-frequency step-up switching regulators. These controllers are designed for low-voltage applications, offering flexibility in setting switching frequencies and duty cycles through external passive components.

FAQ

How is the switching frequency determined?

The internal oscillation frequency can be set up to 1.133 MHz using 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.