S-8338ACGC-T8T1G

Overview

The S-8338ACGC-T8T1G 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 utilizes pulse width modulation (PWM) control. The internal oscillation frequency is adjustable up to 1.133 MHz via an external resistor on the ROSC pin. The maximum duty ratio is fixed at 88%. Phase compensation and gain are configurable through external components connected to the CC pin. The device includes under-voltage lockout and timer latch short-circuit protection circuits, housed in an 8-pin TSSOP package.

Feature Summary

• Integrates reference voltage, oscillator, error amplifier, and PWM controller for efficient step-up regulation
• Features timer latch short-circuit protection circuit for enhanced system safety
• Supports low minimum operating voltage suitable for portable systems
• Allows flexible adjustment of oscillation frequency and phase compensation

Applications

• Power supply for LCD panels
• Portable electronic systems requiring low voltage operation
• General purpose DC-DC conversion applications

Procurement Notes

Verify the specific suffix codes against official documentation to confirm exact electrical characteristics and package variations. Confirm RoHS compliance status and environmental declarations with the manufacturer. Check for any product change notifications or obsolescence notices prior to finalizing procurement plans.

Selection Notes

Select this component when a fixed maximum duty ratio of 88% is required rather than adjustable limits found in other series variants. Ensure the design accommodates the adjustable frequency range up to 1.133 MHz and provides necessary external components for phase compensation and timing settings.

Part Context

This part belongs to the S-8337/8338 series of high-frequency PWM control switching regulator controllers. The S-8338 variant distinguishes itself with a fixed maximum duty ratio, whereas the S-8337 series allows duty ratio adjustment via an external resistor. Both share similar core architectures including UVLO and protection circuits.

Replacement Considerations

S-8338ABEC-T8T1G and S-8338ACCB-T8T1G are confirmed substitutes within the same series offering identical functional specifications and package types.