S-8333ABEB-T8T1G

Overview

The S-8333ABEB-T8T1G is a CMOS step-up switching regulator controller 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 an internal oscillation frequency up to 1.2 MHz. The device is housed in an 8-pin TSSOP package and supports a maximum duty ratio of approximately 0.89. Designed for low-voltage applications, it integrates essential protection circuits including under-voltage lockout and short-circuit protection.

Feature Summary

• Integrates PWM control circuitry with adjustable internal oscillation frequency for high-frequency operation
• Features built-in under-voltage lockout and timer latch short-circuit protection mechanisms
• Supports external adjustment of phase compensation and gain via connected resistor and capacitor values

Applications

• Power supply units for LCD panels
• Portable electronic systems operating on low voltage sources
• Step-up DC-DC converter designs requiring compact footprint

Procurement Notes

Verify the specific output voltage configuration associated with the suffix code against the official datasheet before procurement. Confirm that the required switching frequency and duty cycle settings align with the external component selection guidelines provided in the technical documentation to ensure stable operation.

Selection Notes

Select this component when designing boost converters requiring a wide input voltage range starting from 1.8 V. Ensure the application necessitates PWM control rather than fixed-frequency alternatives. Verify that the external components can support the required oscillation frequency and that the thermal performance of the TSSOP-8 package meets the system's dissipation requirements.

Part Context

This part belongs to the S-8333 series of high-frequency step-up switching regulator controllers. The series is characterized by its ability to operate at low input voltages while maintaining efficiency through PWM control. It serves as a core controller IC for portable devices where space constraints and low power consumption are critical design factors.

Replacement Considerations

Consult the manufacturer's cross-reference list for verified substitutes. Ensure any replacement maintains compatibility with the 1.8 V minimum operating voltage and the 8-TSSOP package form factor.