LD1117DT33TR

$0.48

Description：IC REG LINEAR 3.3V 800MA DPAK
Series：-
Mfr：STMicroelectronics
Package：Tape & Reel (TR),Cut Tape (CT)

SKU:ac128bb647ad Category: Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Brand: STMicroelectronics

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Product introduction

Product Detailed Parameters

Description：IC REG LINEAR 3.3V 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)：3.3V
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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LD1117DT33TR

Overview

The LD1117DT33TR is a fixed-output positive low-dropout linear voltage regulator manufactured by STMicroelectronics. It provides a stable 3.3V output with a maximum continuous current of 800mA. The device operates within an input voltage range up to 15V and features a typical dropout voltage of approximately 1V at full load. It incorporates internal thermal overload and short-circuit current limiting protections. The component is housed in a surface-mount TO-252 (DPAK) package with three pins, suitable for applications requiring efficient power management in compact designs.

Feature Summary

Integrated thermal overload protection prevents damage during excessive heat conditions.
Built-in current limiting safeguards the device against short circuits and overloads.
Low dropout voltage capability allows operation with minimal input-to-output voltage difference.

Applications

Battery-powered systems requiring efficient voltage regulation
General-purpose power supplies
Post-regulation for switching regulators

Procurement Notes

Verify the exact part number suffix and manufacturer lot codes upon receipt to ensure authenticity. Confirm that the received components match the specified TO-252 DPAK package and electrical ratings. Check for physical damage or contamination before soldering. Ensure storage conditions comply with moisture sensitivity level requirements to maintain reliability during assembly processes.

Selection Notes

Select this component when a fixed 3.3V output is required with moderate current demands up to 800mA. Consider the thermal performance in the TO-252 package relative to the expected power dissipation. Verify that the input voltage remains within the 15V maximum limit. Evaluate the need for integrated protection features versus external circuitry based on system safety requirements.

Part Context

This device belongs to the LD1117 series of low-dropout regulators from STMicroelectronics. The series offers various fixed output voltages and packaging options to suit different power and space constraints. The DT33 variant specifically denotes the 3.3V output version in the DPAK package, providing a balance between current capacity and thermal efficiency for standard electronic applications.