S-8338ABEA-T8T1G

Overview

The S-8338ABEA-T8T1G is a CMOS step-up switching regulator controller from the S-8338 series, manufactured by ABLIC Inc. It operates within an input voltage range of 1.8 V to 6 V and utilizes pulse width modulation (PWM) control with a maximum duty ratio of 88.5%. The internal oscillation frequency is adjustable between 257.4 kHz and 1.134 MHz via an external resistor. The device is housed in an 8-SMD, flat lead package (8-SON(A), dimensions 2.9x2.8 mm). It supports a positive output configuration and includes features such as under-voltage lockout and timer latch short-circuit protection.

Feature Summary

• Integrates a reference voltage circuit, oscillator, error amplifier, PWM controller, and UVLO for compact power supply designs.
• Features a timer latch short-circuit protection circuit to enhance system reliability during fault conditions.
• Allows phase compensation and gain adjustment through external resistors and capacitors connected to the CC pin.

Applications

• Power supply for LCD panels
• Portable systems operating on low voltage
• Step-up DC-DC converter circuits

Procurement Notes

Verify the specific suffix T8T1G against the manufacturer's official documentation to confirm the exact tape and reel packaging specifications. Ensure compatibility with the required 8-SON(A) footprint and check for any recent product change notifications regarding material composition or marking changes before finalizing procurement orders.

Selection Notes

Select this component when a fixed maximum duty ratio of approximately 88% is required, distinguishing it from the S-8337 series which allows variable duty ratio control. Confirm that the application requires an externally adjustable switching frequency up to 1.134 MHz and fits within the 1.8 V to 6 V input voltage window.

Part Context

This part belongs to the S-8338 series of high-frequency PWM control switching regulator controllers. It shares core architectural similarities with the S-8337 series but differs in its fixed maximum duty ratio characteristic. The series is designed for low-voltage applications requiring efficient step-up conversion in space-constrained environments.

Replacement Considerations

The S-8338ABEC-T8T1G serves as a functional substitute offering identical electrical characteristics but utilizes an 8-TSSOP package instead of the 8-SON(A) form factor. Verify mechanical fitment constraints before substitution.