S-85S1PC38-I8T1U

Voltage Regulators - DC DC Switching Regulators Overview

The S-85S1PC38-I8T1U is a synchronous step-down switching regulator from ABLIC's S-85S1P series. It operates with an input voltage range of 1.5 V to 5.5 V and provides a fixed output voltage of 3.8 V. The device supports a maximum output current of 200 mA with a single output channel. Key electrical parameters include a quiescent current of 260 nA and a switching frequency of 1 MHz. It utilizes constant on-time (COT) control for stable performance. The component functions within a temperature range of -40°C to +85°C and is housed in an SNT-A-8 package.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrates synchronous rectification for high efficiency in a compact surface-mount package.
• Features low quiescent current consumption suitable for battery-powered applications.
• Utilizes constant on-time control architecture for simplified external component requirements.

Voltage Regulators - DC DC Switching Regulators Applications

• Portable electronic devices requiring efficient power management
• Battery-operated systems needing low standby current
• Embedded circuits utilizing 1.5 V to 5.5 V input rails

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific output voltage configuration against design requirements, as the suffix indicates a fixed 3.8 V setting. Confirm package compatibility with the SNT-A-8 footprint during layout. Ensure thermal management aligns with the specified operating temperature range. Cross-reference the manufacturer datasheet for pinout definitions and recommended external inductor values to guarantee circuit stability.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a fixed 3.8 V output is required from a 1.5 V to 5.5 V source. Consider the 200 mA current limit for load demands. Evaluate the 1 MHz switching frequency against electromagnetic interference constraints. Compare quiescent current specifications against alternative regulators if ultra-low power standby modes are critical for the application.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the S-85S1P series of low-power switching regulators by ABLIC. The series emphasizes energy efficiency through COT control and low static current. The SNT-A-8 packaging allows for dense PCB layouts. This specific model variant defines the fixed output voltage parameter within the broader family of adjustable or other fixed voltage options available in the same product line.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Direct substitutes within the same series include S-85S1PCxx-I8T1U variants with different fixed voltages. Verify pin compatibility and thermal characteristics before substitution. Alternative manufacturers may offer similar buck converters, but ensure input voltage ranges and quiescent current specs match the original design constraints.