S-8337AAEB-P8T1G

Overview

The S-8337AAEB-P8T1G is a CMOS step-up switching regulator controller manufactured by ABLIC Inc. It operates within a supply voltage range of 1.8V to 6V and utilizes PWM control with an internal oscillation frequency adjustable up to 1.134MHz via an external resistor. The device features a maximum duty ratio of 0.89 and includes under-voltage lockout, timer latch short-circuit protection, and phase compensation capabilities. Packaged in an 8-SON format measuring 2.9x2.8mm, it supports operation temperatures from -40°C to 85°C.

Feature Summary

• Integrates reference voltage, oscillator, error amplifier, and PWM controller for efficient power management
• Features low minimum operating voltage suitable for portable systems and LCD power supplies
• Includes built-in under-voltage lockout and timer latch short-circuit protection circuits

Applications

• Power supply for LCD modules
• Portable electronic systems requiring low voltage operation
• Step-up DC-DC converter designs

Procurement Notes

Verify the specific suffix P8T1G corresponds to the 8-SON package configuration rather than TSSOP variants. Confirm RoHS compliance status through official documentation as manufacturing processes may change. Check for any product change notifications regarding solder plating materials or component availability before finalizing procurement plans.

Selection Notes

Select this component when designing boost converters requiring high-frequency operation up to 1.134MHz. Ensure external components match the required phase compensation and duty ratio settings. Verify that the input voltage remains within the 1.8V to 6V operational range for stable performance across the specified temperature spectrum.

Part Context

This part belongs to the S-8337 series of high-frequency PWM control switching regulator controllers. It shares core architecture with the S-8338 series but differs in maximum duty ratio configurability. The series is designed for applications demanding compact solutions with low standby current and wide input voltage flexibility.

Replacement Considerations

S-8337ABEC-T8T1G

FAQ

How is the internal oscillation frequency adjusted?

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

What protection features are included?

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