S-1701C2521-U5T1G

Overview

The S-1701C2521-U5T1G is a dual-output low dropout (LDO) voltage regulator manufactured by ABLIC Inc. It integrates two fixed output voltages of 2.1 V and 2.5 V within a single package. The device supports a maximum output current of 400 mA per channel with a quiescent current of 85 µA. It operates within an input voltage range of 1.6 V to 5.5 V and maintains a typical dropout voltage of 160 mV at 100 mA. The unit features a voltage regulation accuracy of 1% and is housed in a compact SOT-89-5 surface-mount package, suitable for space-constrained power management applications.

Feature Summary

• Integrates dual fixed output channels for simultaneous multi-rail supply generation
• Combines low quiescent current operation with high output drive capability
• Includes integrated voltage detection functionality alongside regulation

Applications

• Portable electronic devices requiring multiple stable voltage rails
• Battery-powered systems needing efficient power management
• Embedded circuits utilizing combined regulation and monitoring functions

Procurement Notes

Verify the specific part number against official ABLIC documentation to confirm pinout compatibility and electrical specifications. Ensure that the required output voltages match the fixed values provided in the datasheet. Confirm package integrity and storage conditions prior to assembly to maintain component reliability.

Selection Notes

Select this component when dual independent regulated outputs are required from a single source. Consider the 400 mA current limit and 85 µA standby current for efficiency requirements. Evaluate the thermal performance based on the SOT-89-5 package dissipation capabilities under expected load conditions.

Part Context

This component belongs to the S-1701 series of combo voltage detectors and regulators. The series is designed to provide both power regulation and system monitoring in a minimal footprint. It targets applications where board space is limited and multiple voltage levels are necessary for microcontrollers or peripheral interfaces.

Replacement Considerations

Check for other S-1701 variants with different output voltage combinations if the 2.1 V/2.5 V pair does not match design needs. Verify pin-to-pin compatibility before substituting with similar LDOs from other manufacturers.