S-8337ABBA-T8T1G

Overview

The S-8337ABBA-T8T1G is a CMOS step-up switching regulator controller from the S-8337 series by ABLIC Inc. It operates within an input voltage range of 1.8 V to 6 V and utilizes pulse width modulation (PWM) control. The device features an internal oscillator with a frequency settable up to 1.133 MHz via an external resistor on the ROSC pin. It includes an under-voltage lockout circuit, a timer latch short-circuit protection circuit, and adjustable phase compensation. The component is housed in an 8-pin TSSOP package.

Feature Summary

• Integrates reference voltage, error amplifier, and PWM controller for efficient step-up regulation
• Features low minimum operating voltage suitable for portable systems
• Includes built-in under-voltage lockout and short-circuit protection circuits
• Allows external adjustment of oscillation frequency and maximum duty ratio

Applications

• Power supply for LCD panels
• Portable electronic systems requiring low voltage operation
• General purpose DC-DC step-up converter designs

Procurement Notes

Verify the specific suffix codes against the official datasheet to ensure correct configuration. Confirm that the TSSOP-8 package matches the target PCB footprint. Check for any product change notifications or environmental compliance updates prior to finalizing procurement orders.

Selection Notes

Select this component when a low input voltage start-up capability is required. Ensure the application design accommodates the external components needed for setting the oscillation frequency and duty cycle. Verify that the thermal performance of the TSSOP-8 package meets the system requirements.

Part Context

This part belongs to the S-8337/8338 series of high-frequency PWM control switching regulator controllers. The series is designed for applications requiring compact power solutions with low standby current. The S-8337 variant specifically allows for user-defined maximum duty ratios, unlike the fixed-ratio S-8338.

Replacement Considerations

S-8337AAEB-T8T1G, S-8337ACDC-T8T1G, S-8337AAHA-T8T1G, S-8337ABEC-T8T1G