S-85M1AC39-H6T6S

Voltage Regulators - DC DC Switching Regulators Overview

The S-85M1AC39-H6T6S is a synchronous step-down switching regulator manufactured by ABLIC Inc. It provides a fixed positive output voltage of 3.9 V with a maximum output current capability of 200 mA. The device operates within an input voltage range of up to 5.6 V and utilizes a 6-pin UFBGA or WLBGA package topology. Designed for low electromagnetic interference applications, it integrates internal control circuitry to regulate the output efficiently.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Synchronous buck converter architecture for efficient power conversion
• Fixed 3.9 V output voltage setting
• Compact 6-pin surface-mount package design

Voltage Regulators - DC DC Switching Regulators Applications

• Portable electronic devices requiring stable 3.9 V rails
• Battery-powered systems with input voltages up to 5.6 V
• Low EMI sensitive digital circuits

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific package variant (UFBGA vs. WLBGA) as both are referenced in distributor listings. Confirm the exact output tolerance and thermal performance requirements against the official datasheet before integration. Ensure compatibility with the 200 mA load current specification for the target application design.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a fixed 3.9 V output is required from a single-cell lithium battery or similar 5.6 V max source. The synchronous design offers higher efficiency compared to standard LDOs under moderate loads. Consider the small footprint if board space is constrained, noting the specific pinout for the chosen package style.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the S-85M1 series of low EMI synchronous step-down regulators from ABLIC. The series is characterized by high efficiency and compact packaging options suitable for modern portable electronics. The AC suffix typically denotes specific output voltage and package configuration variants within this product line.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Direct substitutes include other ABLIC parts in the S-85M1 series with identical 3.9 V output and 200 mA rating, such as S-85M1AB39-H6T6S if package compatibility allows. Cross-vendor replacements require matching input voltage limits, output current capacity, and physical footprint constraints.