S-1701R3315-U5T1G

Overview

The S-1701R3315-U5T1G is a low dropout voltage regulator from the S-1701 series manufactured by ABLIC Inc. It features two fixed positive output voltages of 1.5 V and 3.3 V with a maximum output current of 400 mA. The device operates within an input voltage range supporting these outputs, maintaining a typical dropout voltage of 140 mV at full load. It consumes a quiescent current of 85 µA. The component is housed in an SOT-23-5 surface-mount package and functions reliably across an operating temperature range from -40 °C to +85 °C.

Feature Summary

• Integrates dual fixed voltage outputs (1.5 V and 3.3 V) for combined regulation and detection applications
• Provides high output current capability of 400 mA with low dropout characteristics
• Ensures energy efficiency through ultra-low quiescent current consumption of 85 µA
• Includes built-in protection circuits against overcurrent and thermal overload

Applications

• Portable electronic devices requiring multiple stable voltage rails
• Battery-powered systems prioritizing low power consumption
• Embedded circuits needing integrated voltage supervision and regulation

Procurement Notes

Verify the specific suffix U5T1G corresponds to the SOT-23-5 package and reel packaging configuration. Confirm that the dual-output specification matches the design requirements for both 1.5 V and 3.3 V rails simultaneously. Ensure compatibility with the required operating temperature range of -40 °C to +85 °C for the target application environment.

Selection Notes

Select this component when a single IC solution is needed to provide both regulated power and voltage monitoring functions. The S-1701R3315 variant is appropriate for designs requiring a 3.3 V main rail and a 1.5 V auxiliary rail or detector threshold. Consider the SOT-23-5 footprint constraints and the 400 mA current limit relative to the total load demand.

Part Context

This part belongs to the S-1701 series of combo voltage detectors and regulators. Unlike standard LDOs, this series integrates voltage detection functionality alongside regulation. The R3315 designation specifically indicates the combination of 3.3 V and 1.5 V outputs. It is designed for applications where space savings and reduced component count are critical.

Replacement Considerations

Check the datasheet for alternative part numbers within the S-1701 series that offer different output combinations or package types such as SOT-89-5 if pinout compatibility allows.