S-8338ABHB-P8T1G

Overview

The S-8338ABHB-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 switching frequency up to 1.134 MHz. The device utilizes pulse width modulation (PWM) control with a maximum duty ratio of 88.5%. It features integrated under-voltage lockout (UVLO) and timer latch short-circuit protection circuits. The component is housed in an 8-SON package measuring 2.9 x 2.8 mm.

Feature Summary

• Integrates UVLO and timer latch short-circuit protection for enhanced reliability
• Supports high-frequency operation via external resistor setting
• Enables low-voltage system power supply starting at 1.8 V

Applications

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

Procurement Notes

Verify the specific output configuration and pin assignment against the official datasheet before integration, as suffixes may indicate variations in internal circuitry or packaging standards. Confirm RoHS compliance status and ensure the selected variant matches the required thermal and electrical specifications for the target application environment.

Selection Notes

Select this component when designing boost converters requiring a wide input voltage range and high switching frequencies to minimize passive component size. Ensure the external oscillator resistor allows the desired frequency within the specified limits. Verify that the load requirements align with the controller's drive capabilities and that the PCB layout accommodates the small 8-SON footprint.

Part Context

This part belongs to the S-8337/8338 series of high-frequency PWM control switching regulator controllers. The S-8338 variants typically offer higher maximum duty ratios compared to the S-8337 series, making them suitable for applications with larger step-up ratios. The P8T1G suffix denotes the specific package type and tape-and-reel packaging format.

Replacement Considerations

S-8338ABEA-P8T1G and S-8338AADB-P8T1G are documented members of the same series with identical 8-SON packaging and core functionality.