S-8337ACGA-P8T1G

Overview

The S-8337ACGA-P8T1G is a CMOS step-up switching regulator controller from the S-8337 series, manufactured by ABLIC Inc. It operates within a supply voltage range of 1.8 V to 6 V and supports an internal oscillation frequency adjustable up to 1.134 MHz via an external resistor. The device features a maximum duty ratio of 0.89 and utilizes pulse width modulation (PWM) control. It is housed in an 8-SON(A) package with dimensions of 2.9x2.8 mm and is rated for an operating temperature range of -40°C to 85°C.

Feature Summary

• Integrates under voltage lockout and timer latch short-circuit protection circuits for enhanced system reliability.
• Allows adjustment of phase compensation and gain values through external resistor and capacitor connections.
• Supports external setting of the maximum duty ratio using a dedicated resistor connection.

Applications

• Power supply systems for LCD displays
• Portable electronic devices requiring low-voltage operation
• Step-up DC-DC converter designs

Procurement Notes

Verify the specific suffix P8T1G corresponds to the 8-SON(A) package configuration. Confirm RoHS compliance status as per the latest manufacturer documentation. Check component availability status, as listings may indicate limited stock or obsolescence warnings. Ensure ordering quantities align with standard reel packaging requirements specified by the supplier.

Selection Notes

Select this controller when designing boost converters requiring high-frequency operation up to 1.2 MHz. It is suitable for applications needing a low minimum operating voltage of 1.8 V. Consider the fixed maximum duty ratio characteristic compared to other series variants. Verify that the required output topology matches the positive output configuration of this device.

Part Context

This component belongs to the S-8337/8338 series of high-frequency PWM control switching regulator controllers. The series is designed for portable systems and LCD power supplies. The S-8337 variant specifically allows user-defined maximum duty ratios, distinguishing it from the S-8338 series which has a fixed duty ratio. The device integrates essential protection and control logic on a single CMOS chip.

Replacement Considerations

S-8337ACAA-P8T1G and S-8337ACFA-P8T1G are parameter-equivalent alternatives within the same series offering identical electrical specifications and functionality.