S-8337ACCB-P8T1G

Overview

The S-8337ACCB-P8T1G is a CMOS step-up switching regulator controller from the S-8337 series, manufactured by ABLIC Inc. It operates with a minimum input voltage of 1.8 V and supports an internal oscillation frequency up to 1.134 MHz via an external resistor on the ROSC pin. The device features PWM control with a maximum duty ratio adjustable through the RDuty pin. It includes under-voltage lockout (UVLO) and timer latch short-circuit protection circuits. The unit weight is 191 mg, and it is housed in an 8-SMD, flat lead package.

Feature Summary

• Integrates reference voltage, oscillator, error amplifier, and PWM controller for efficient power management.
• Features adjustable maximum duty ratio via external resistor connection for flexible output control.
• Includes built-in under-voltage lockout and timer latch short-circuit protection mechanisms.

Applications

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

Procurement Notes

Verify the specific suffix P8T1G indicates the 8-SON(A) package variant rather than TSSOP-8. Confirm RoHS compliance status and REACH registration details directly with the manufacturer or authorized distributors before finalizing procurement plans.

Selection Notes

Select this component when designing boost converters requiring low start-up voltage and high-frequency operation. Ensure external components match the required oscillation frequency and duty ratio settings defined by the ROSC and RDuty pins respectively.

Part Context

This part belongs to the S-8337/8338 series of high-frequency PWM control switching regulator controllers. It shares architectural similarities with other members like S-8337AAEB but differs in packaging and specific electrical parameter configurations.

Replacement Considerations

S-8337ACGA-P8T1G

FAQ

How is the oscillation frequency adjusted?

The internal oscillation frequency can be set up to 1.134 MHz by connecting a resistor to the ROSC pin.

What protection circuits are included?

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