S-8337ABDA-P8T1G

Overview

The S-8337ABDA-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 supports a maximum oscillation frequency of 1.133 MHz via the ROSC pin. The device utilizes pulse width modulation (PWM) control with a maximum duty ratio adjustable through the RDuty pin. It features an internal oscillator, error amplifier, under-voltage lockout circuit, and timer latch short-circuit protection. The component is housed in an 8-SON package.

Feature Summary

• Integrates a reference voltage circuit, oscillator, error amplifier, and PWM controller for efficient power management.
• Includes under-voltage lockout and timer latch short-circuit protection circuits for enhanced operational safety.
• Allows external adjustment of oscillation frequency and maximum duty ratio using connected resistors.

Applications

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

Procurement Notes

Verify the specific suffix P8T1G against official datasheets to confirm the exact package type and tape-and-reel specifications. Ensure compliance with RoHS standards as indicated in manufacturer documentation. Confirm availability status directly with authorized distributors, as lead times may vary based on production schedules.

Selection Notes

Select this component when designing boost converter applications requiring operation at input voltages as low as 1.8 V. Consider the S-8337 series for its adjustable frequency and duty cycle capabilities. Verify that the 8-SON package fits the board layout constraints and thermal requirements of the target system design.

Part Context

This part belongs to the S-8337/8338 Series, which are high-frequency PWM control switching regulator controllers. The series is designed for step-up applications, offering flexibility in frequency setting and duty ratio control compared to fixed-duty variants like the S-8338 series.

Replacement Considerations

S-8337ACDC-T8T1G

FAQ

How is the oscillation frequency adjusted?

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