S-1701E2521-M5T1G

Overview

The S-1701E2521-M5T1G is a dual-output low dropout (LDO) voltage regulator from the ABLIC S-1701 series, designed for automotive and industrial applications. 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 typical quiescent current of 85 µA. It operates within an input voltage range compatible with standard automotive rails and provides outputs in a positive polarity configuration. The regulator features a compact SOT-23-5 surface-mount package, ensuring efficient space utilization on printed circuit boards while maintaining stable regulation under varying load conditions.

Feature Summary

• Integrates dual independent fixed voltage outputs (2.1 V and 2.5 V) in a single component to reduce board space and component count.
• Features ultra-low quiescent current consumption to minimize power loss during standby or light-load operations.
• Includes built-in voltage detection functionality for monitoring supply integrity without requiring external comparator circuits.
• Designed with robust thermal management capabilities suitable for high-density automotive electronic assemblies.

Applications

• Automotive infotainment system power distribution
• Engine control unit (ECU) auxiliary logic supply
• Body control module sensor interface powering
• Telematics unit core voltage regulation

Procurement Notes

Verify the specific suffix codes against the manufacturer's latest datasheet to confirm pinout compatibility and temperature grade. Ensure the ordering quantity aligns with the factory reel packaging requirements specified by ABLIC. Cross-reference the RoHS compliance status with current environmental regulations before finalizing procurement contracts.

Selection Notes

Select this component when dual distinct voltage rails are required from a single regulator source to simplify schematic design. Consider the 400 mA output capability relative to the peak load demands of the connected downstream circuits. Evaluate the SOT-23-5 package constraints against available PCB real estate and thermal dissipation pathways in the target enclosure design.

Part Context

This part belongs to the S-1701 series of combo voltage detector/regulators manufactured by ABLIC Inc. The series is characterized by its integration of LDO regulation with voltage monitoring functions, targeting automotive reliability standards. The 'M5T1G' suffix indicates the specific package type, tape-and-reel packaging format, and lead-free composition compliant with industry environmental directives.

Replacement Considerations

Direct substitutes include other S-1701 variants with identical output voltages but different packages, such as S-1701W2521-U5T1G in SOT-89-5. Verify that any replacement maintains the same dual-output configuration and current rating to ensure functional parity in the existing circuit design.