LD1117ADT25TR

$1.25

Description：IC REG LINEAR 2.5V 1A DPAK
Series：-
Mfr：STMicroelectronics
Package：Tape & Reel (TR),Cut Tape (CT)

SKU:b05561e86f37 Category: Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Brand: STMicroelectronics

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Product introduction

Product Detailed Parameters

Description：IC REG LINEAR 2.5V 1A DPAK
Series：-
Mfr：STMicroelectronics
Package：Tape & Reel (TR),Cut Tape (CT)
Output Configuration：Positive
Output Type：Fixed
Number of Regulators：1
Voltage - Input (Max)：15V
Voltage - Output (Min/Fixed)：2.5V
Voltage - Output (Max)：-
Voltage Dropout (Max)：1.3V @ 1A
Current - Output：1A
Current - Quiescent (Iq)：10 mA
Current - Supply (Max)：-
PSRR：80dB (120Hz)
Control Features：-
Protection Features：Over Current, Over Temperature
Operating Temperature：0°C ~ 125°C
Mounting Type：Surface Mount
Package / Case：TO-252-3, DPAK (2 Leads + Tab), SC-63
Supplier Device Package：DPAK
Grade：-
Qualification：-

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LD1117ADT25TR

Overview

The STMicroelectronics LD1117ADT25TR is a positive fixed linear voltage regulator providing a nominal output of 2.5V with a maximum output current of 1A. It operates within an input voltage range up to 15V and features a maximum dropout voltage of 1.2V at full load. The device incorporates internal thermal overload and short-circuit protection, ensuring reliable operation across a junction temperature range of -40°C to 125°C. Packaged in a DPAK (TO-252) surface-mount housing, it offers efficient power management for compact electronic designs.

Feature Summary

Provides stable 2.5V fixed output voltage
Supports high current delivery up to 1A
Includes integrated thermal and current limiting protection

Applications

Battery-powered equipment requiring regulated low-voltage rails
Post-regulation for switching power supplies
General-purpose power supply circuits

Procurement Notes

Verify the specific suffix 'DT' against the manufacturer's official datasheet to confirm the package type and electrical tolerances match your design requirements. Ensure compatibility with the required PCB footprint for the DPAK package. Cross-reference the ordering code with authorized distributors to avoid counterfeit components and confirm RoHS compliance status.

Selection Notes

Select this component when a fixed 2.5V rail is needed with up to 1A capacity. Compare the 1.2V dropout voltage against your minimum input-output differential. Consider the DPAK thermal performance for your enclosure. If adjustable voltage or lower quiescent current is required, evaluate alternative LDO families from the same manufacturer.

Part Context

This part belongs to the LD1117 series of low-dropout regulators known for their simplicity and robustness. The ADT variant specifically denotes the DPAK surface-mount package configuration. It serves as a cost-effective solution for general-purpose linear regulation where efficiency is secondary to stability and ease of implementation.