S-8337ABEC-P8T1G

Overview

The S-8337ABEC-P8T1G is a CMOS step-up switching regulator controller from the S-8337 series, manufactured by ABLIC Inc. It operates within a supply voltage range of 1.8 V to 6 V and utilizes PWM control with an internal oscillation frequency adjustable up to 1.133 MHz via an external resistor on the ROSC pin. The maximum duty ratio is configurable through an external resistor connected to the RDuty pin. Phase compensation and gain are adjusted using components on the CC pin. The device is housed in an 8-SON package (2.9x2.8 mm) and supports operation temperatures from -40°C to 85°C.

Feature Summary

• Integrates reference voltage, oscillator, error amplifier, and PWM controller for compact power management
• Features low minimum operating voltage suitable for portable systems
• Allows external adjustment of oscillation frequency and maximum duty ratio
• Includes under voltage lockout and timer latch short-circuit protection

Applications

• Power supply for LCD panels
• 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 as detailed in official documentation. Ensure design compatibility with the specified temperature range and voltage limits before procurement.

Selection Notes

Select this component when designing boost converters requiring adjustable frequency and duty cycle control. Compare against the S-8338 series if a fixed maximum duty ratio is acceptable. Ensure external components match the required phase compensation and frequency settings for stability.

Part Context

This part belongs to the S-8337/8338 series of high-frequency PWM control switching regulators. The S-8337 variant specifically allows user-defined maximum duty ratios, distinguishing it from the S-8338 which has a fixed limit. The series is designed for efficiency in low-voltage applications.

Replacement Considerations

S-8337AAEB-T8T1G and S-8337ACDC-T8T1G are documented members of the same series. Verify package type (SON vs TSSOP) and electrical parameter alignment before substitution.