S-8338ACGC-P8T1G

Overview

The S-8338ACGC-P8T1G is a CMOS step-up switching regulator controller from the S-8338 series 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 an external resistor. The device utilizes pulse width modulation (PWM) control with a maximum duty ratio of 88.5%. It features under-voltage lockout and timer latch short-circuit protection, functioning in a surface-mount 8-SON package rated for temperatures between -40°C and +85°C.

Feature Summary

• Integrates reference voltage, oscillator, error amplifier, and PWM controller for efficient step-up regulation.
• Includes under-voltage lockout and timer latch short-circuit protection circuits for enhanced reliability.
• Supports high-frequency operation up to 1.133 MHz to minimize external component size.

Applications

• Power supply units for LCD displays
• Portable electronic systems operating on low voltage
• Battery-powered devices requiring step-up conversion

Procurement Notes

Verify the specific suffix P8T1G against official documentation to confirm the 8-SON package type and tape-and-reel packaging configuration. Ensure compatibility with RoHS standards and check for any recent product change notifications regarding material or design updates before finalizing procurement orders.

Selection Notes

Select this component when designing low-voltage portable systems requiring a compact footprint. The 1.8 V minimum operating voltage allows direct connection to single-cell batteries. Verify that the required switching frequency can be accurately set using the external resistor connected to the ROSC pin within the specified operational temperature range.

Part Context

This part belongs to the S-8337/8338 series of high-frequency PWM control switching regulator controllers. The S-8338 variant specifically provides a fixed maximum duty ratio, distinguishing it from the adjustable duty cycle options available in the S-8337 series. Both share similar internal architectures optimized for low-voltage applications.

Replacement Considerations

The S-8337AADC-P8T1G serves as a functional alternative within the same series, offering adjustable duty cycle capabilities instead of the fixed maximum duty ratio found in the S-8338 series. Designers must account for differences in duty cycle control mechanisms when substituting these components.