S-8337AABA-P8T1G

Overview

The S-8337AABA-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 device supports an internal oscillation frequency adjustable up to 1.133 MHz via an external resistor. It features a maximum duty ratio controllable through an external resistor connected to the RDuty pin. The component is housed in an 8-SON package with dimensions of 2.9 x 2.8 mm.

Feature Summary

• Integrates reference voltage, oscillator, error amplifier, and PWM controller for efficient step-up regulation
• Supports low-voltage operation starting at 1.8 V, suitable for portable systems
• Includes under voltage lockout and timer latch short-circuit protection circuits

Applications

• Power supply for LCD displays
• Portable electronic systems operating on low voltage
• Battery-powered devices requiring step-up conversion

Procurement Notes

Verify the specific suffix P8T1G corresponds to the 8-SON(A) 2.9x2.8 mm package configuration. Confirm RoHS compliance status as detailed in the manufacturer's environmental documentation. Ensure compatibility with the required operating temperature range of -40°C to 85°C for the intended application environment.

Selection Notes

Select this controller when designing boost converters requiring high-frequency operation up to 1.133 MHz. The adjustable maximum duty ratio allows flexibility in output voltage settings compared to fixed-duty variants. Consider the 8-SON package size for compact board layouts in space-constrained portable applications.

Part Context

This component belongs to the S-8337/8338 series of high-frequency PWM control switching regulator controllers. The S-8337 variant specifically offers adjustable maximum duty ratios, distinguishing it from the S-8338 series which has a fixed maximum duty ratio. Both series share similar core architectures including UVLO and short-circuit protection.

Replacement Considerations

S-8337AAEB-P8T1G, S-8337ACDC-T8T1G, S-8337AAGB-T8T1G.