LD1117DT18TR

$0.50

Description：IC REG LINEAR 1.8V 800MA DPAK
Series：-
Mfr：STMicroelectronics
Package：Tape & Reel (TR),Cut Tape (CT)

SKU:a6c586cbcc6a Category: Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Brand: STMicroelectronics

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Product introduction

Product Detailed Parameters

Description：IC REG LINEAR 1.8V 800MA 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)：1.8V
Voltage - Output (Max)：-
Voltage Dropout (Max)：1.2V @ 800mA
Current - Output：800mA
Current - Quiescent (Iq)：10 mA
Current - Supply (Max)：-
PSRR：75dB (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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LD1117DT18TR

Overview

The LD1117DT18TR is a fixed-output positive low-dropout linear voltage regulator manufactured by STMicroelectronics. It provides a stable 1.8V output with a maximum current capacity of 800mA to 950mA depending on specific testing conditions. The device operates within an input voltage range of 3.3V to 15V and features a typical dropout voltage of 1.2V at full load. Packaged in the TO-252-3 (DPAK) surface-mount format, it supports operation from 0°C to +125°C. Key electrical specifications include a line regulation of 6mV, load regulation of 10mV, and a power dissipation capability of up to 12W.

Feature Summary

Integrated thermal overload and current limit protection mechanisms ensure device safety under fault conditions.
Low dropout voltage design enables efficient regulation even when input-to-output voltage differential is minimal.
High power supply rejection ratio effectively attenuates ripple and noise from the input source.

Applications

Battery-powered portable electronic devices requiring stable low-voltage rails
Post-regulation stages for switching power supplies to reduce output noise
Embedded systems and microcontroller power distribution networks

Procurement Notes

Verify the exact package marking and manufacturer date code upon receipt to confirm authenticity against STMicroelectronics standards. Ensure the received component matches the TO-252-3 form factor specified in the datasheet. Check for physical damage to leads and the thermal pad before soldering. Confirm RoHS compliance status if required by your manufacturing environment. Maintain proper ESD handling procedures during storage and assembly.

Selection Notes

Select this component when a fixed 1.8V rail is required with moderate current demands up to 800mA. The DPAK package offers superior thermal performance compared to smaller SOT packages, making it suitable for applications with higher power dissipation. Consider the 15V maximum input rating to ensure compatibility with your system's supply voltage. Verify that the 1.2V dropout requirement fits within your headroom constraints relative to the minimum input voltage.

Part Context

This part belongs to the LD1117 series of low-dropout regulators produced by STMicroelectronics. The 'DT' suffix indicates the TO-252-3 (DPAK) surface-mount package variant. The '18' designation specifies the fixed 1.8V output voltage. The 'TR' suffix denotes tape-and-reel packaging for automated assembly. This series is widely used in consumer electronics and industrial control systems for reliable linear regulation.