LD1117ADT-TR

$0.48

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

SKU:3ab969e410d0 Category: Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Brand: STMicroelectronics

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Product introduction

Product Detailed Parameters

Description：IC REG LINEAR POS ADJ 1A DPAK
Series：-
Mfr：STMicroelectronics
Package：Tape & Reel (TR),Cut Tape (CT)
Output Configuration：Positive
Output Type：Adjustable
Number of Regulators：1
Voltage - Input (Max)：15V
Voltage - Output (Min/Fixed)：1.25V
Voltage - Output (Max)：15V
Voltage Dropout (Max)：1.3V @ 1A
Current - Output：1A
Current - Quiescent (Iq)：5 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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LD1117ADT-TR

Overview

The LD1117ADT-TR is an adjustable low-dropout positive voltage regulator manufactured by STMicroelectronics. It provides up to 800 mA of output current and features a reference voltage of 1.25 V. The device utilizes an NPN pass transistor for high efficiency, where quiescent current primarily flows into the load. It operates with a maximum input voltage of 15 V and includes internal current limiting and thermal shutdown protection. The component is housed in a DPAK (TO-252-3) surface-mount package.

Feature Summary

Adjustable output voltage configuration with a 1.25 V reference
High efficiency operation via NPN pass transistor architecture
Integrated overcurrent and thermal overload protection mechanisms

Applications

Battery-powered systems requiring efficient linear regulation
General-purpose power supply circuits
Post-regulation stages for switching power supplies

Procurement Notes

Verify the specific suffix against official documentation to confirm pinout compatibility and tolerance specifications. Ensure the procurement source provides valid traceability for the DPAK package variant. Confirm RoHS compliance status as manufacturing processes may vary across production lots and regions.

Selection Notes

Select this component when an adjustable output voltage is required within the LD1117 family. It is suitable for applications needing up to 800 mA with a low dropout characteristic. Consider the DPAK package for its thermal performance and space-saving benefits in surface-mount designs compared to through-hole alternatives.

Part Context

This part belongs to the LD1117 series of low-dropout regulators from STMicroelectronics. The series offers both fixed and adjustable versions in various packages including SOT-223, SO-8, and TO-220. The ADT suffix indicates the adjustable version packaged in DPAK, designed for applications prioritizing thermal efficiency and compact footprint.