S-8337ABFB-P8T1G

Overview

The S-8337ABFB-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 pulse-width modulation (PWM) control. The device features an internal oscillator with a frequency settable up to 1.133 MHz via an external resistor. It incorporates under-voltage lockout (UVLO) and timer latch short-circuit protection circuits. The component is housed in an 8-pin SON(A) package measuring 2.9 x 2.8 mm.

Feature Summary

• Integrates UVLO and timer latch short-circuit protection for enhanced operational safety
• Allows adjustable maximum duty ratio through external resistor configuration
• Supports phase compensation and gain adjustment via external RC components

Applications

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

Procurement Notes

Verify the specific suffix P8T1G corresponds to the 8-SON(A) package variant rather than the TSSOP-8 version. Confirm RoHS compliance status and check for any Product Change Notifications regarding solder plating or material composition updates prior to finalizing procurement orders.

Selection Notes

Select this component when designing boost converters requiring a low minimum operating voltage of 1.8 V. Ensure the application benefits from the adjustable oscillation frequency up to 1.133 MHz and requires precise duty ratio control via external resistors for optimal transient response and stability.

Part Context

This part belongs to the S-8337/8338 Series of high-frequency PWM control switching regulator controllers. The series is designed for portable applications, offering a compact footprint and low voltage operation capabilities compared to standard regulators.

Replacement Considerations

S-8337AAEB-P8T1G

FAQ

How is the internal oscillation frequency determined?

The internal oscillation frequency can be set up to 1.133 MHz by connecting a resistor to the ROSC pin.

What protection mechanisms are included?

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