S-85S1PD20-I8T1U

Voltage Regulators - DC DC Switching Regulators Overview

The S-85S1PD20-I8T1U is a synchronous step-down switching regulator from the ABLIC 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 2.0 V. The device supports a maximum output current of 200 mA and features a low quiescent current of 260 nA. It utilizes constant on-time (COT) control architecture with a typical switching frequency of 1 MHz. The component is housed in an SNT-A-8 package and functions within a temperature range of -40°C to +85°C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrates synchronous rectification for high efficiency across load conditions
• Employs Constant On-Time (COT) control for stable operation without external compensation
• Includes a shutdown pin for active power management and reduced standby consumption

Voltage Regulators - DC DC Switching Regulators Applications

• Portable electronic devices requiring efficient battery-powered regulation
• Embedded systems utilizing low-voltage microcontrollers
• IoT sensor nodes with strict power budget constraints

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific output voltage suffix against official ABLIC documentation, as the 'D20' designation indicates a fixed 2.0 V output. Confirm package compatibility with the SNT-A-8 footprint during PCB layout. Ensure input capacitors meet the ripple current requirements for the 1 MHz switching frequency. Cross-reference the full part number with the manufacturer's latest datasheet to confirm RoHS compliance and availability status before finalizing procurement.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a fixed 2.0 V rail is required from a 1.5 V to 5.5 V source. The 200 mA output capability suits moderate load applications. The low 260 nA quiescent current makes it suitable for battery-operated equipment where standby power is critical. The COT control simplifies design by reducing external component count compared to voltage mode controllers.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the S-85S1P series of low-power buck converters. It shares architectural similarities with variants like the S-85S1PC07 and S-85S1PD10, differing primarily in the fixed output voltage setting. The series is characterized by its compact SNT-A-8 packaging and integration of synchronous MOSFETs for improved efficiency over traditional diode-based rectification.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Direct substitutes include other S-85S1P series parts with identical packages and electrical characteristics but different fixed output voltages, such as S-85S1PD10 or S-85S1PD14. Verify that the replacement part's output voltage matches the system requirement.