S-8338ABCC-P8T1G

Overview

The S-8338ABCC-P8T1G is a CMOS step-up switching regulator controller from the S-8338 series by ABLIC Inc. It operates with an input voltage range of 1.8 V to 6 V and supports a maximum oscillation frequency of 1.134 MHz, adjustable via an external resistor. The device features pulse width modulation (PWM) control with a maximum duty cycle of 88.5%. It includes built-in under-voltage lockout (UVLO) and timer latch short-circuit protection circuits. The component is available in an 8-SON package measuring 2.9x2.8 mm and functions within a temperature range of -40°C to 85°C.

Feature Summary

• Integrates PWM control with adjustable internal oscillation frequency up to 1.134 MHz for flexible power supply design.
• Includes comprehensive protection mechanisms such as under-voltage lockout and timer latch short-circuit protection.
• Supports low-voltage operation starting at 1.8 V, suitable for portable systems and LCD power supplies.

Applications

• Power supply units for liquid crystal displays (LCDs)
• Portable electronic systems operating on low voltage
• Step-up DC-DC converter designs requiring high-frequency operation

Procurement Notes

Verify the specific suffix P8T1G against official ABLIC documentation to confirm packaging and tape-and-reel specifications. Ensure compatibility with the required 8-SON footprint and thermal characteristics during integration. Cross-reference the part number with current manufacturer availability status, as some variants may be marked as not recommended for new designs.

Selection Notes

Select this controller when a low minimum operating voltage of 1.8 V is required for battery-powered or low-voltage applications. Choose the S-8338ABCC variant over other series members if the specific duty cycle control configuration associated with the 'C' suffix matches the design requirements. Consider the 8-SON package size constraints and the need for external switching elements compatible with the transistor driver output.

Part Context

This component belongs to the S-8337/8338 series of high-frequency PWM control switching regulator controllers. While the S-8337 series allows duty ratio control via an external resistor, the S-8338 series typically utilizes fixed or internally configured duty cycle limits depending on the specific sub-model. The S-8338ABCC-P8T1G represents a specific pinout and packaging configuration within this broader family of CMOS step-up regulators.

Replacement Considerations

S-8338ACCC-P8T1G and S-8338ACDC-P8T1G are documented variants within the same series offering similar electrical characteristics but potentially different package types or suffix configurations. Verify functional equivalence regarding duty cycle control and pinout before substitution.