S-8337AAGA-P8T1G

Overview

The S-8337AAGA-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 utilizes pulse width modulation (PWM) control. The internal oscillation frequency is adjustable up to 1.133 MHz via an external resistor connected to the ROSC pin. The maximum duty ratio is configurable through an external resistor on the RDuty pin. Phase compensation and gain are adjusted using components connected to the CC pin. The device is housed in an 8-SON package with dimensions of 2.9 mm x 2.8 mm.

Feature Summary

• Integrates reference voltage, oscillator, error amplifier, PWM controller, UVLO, and timer latch short-circuit protection.
• Supports low-voltage operation starting at 1.8 V for portable systems.
• Allows flexible configuration of switching frequency and maximum duty ratio via external resistors.

Applications

• Power supply for LCD modules
• Portable electronic systems operating on low voltage

Procurement Notes

Verify the specific suffix P8T1G against official documentation to confirm the 8-SON package type and tape-and-reel packaging format. Confirm RoHS compliance status as indicated in current datasheets. Ensure compatibility with the required operating temperature range of -40°C to +85°C for the target application environment before finalizing procurement.

Selection Notes

Select this component when designing boost converter circuits requiring high-frequency operation up to 1.133 MHz. It is suitable for applications needing adjustable duty ratios and phase compensation. Consider the 8-SON package size for space-constrained designs. Verify that the input voltage requirements fall within the 1.8 V to 6 V range.

Part Context

This part belongs to the S-8337/8338 series of high-frequency PWM control switching regulator controllers. The S-8337 variant specifically allows user-defined maximum duty ratios, distinguishing it from the S-8338 series which has a fixed maximum duty ratio. Both series share similar core architectures and low-voltage capabilities.

Replacement Considerations

The S-8338ABEC-T8T1G is a related model within the same series but features a fixed maximum duty ratio rather than the adjustable ratio found in the S-8337 series. Substitution requires verifying if the fixed duty ratio meets the circuit design requirements.