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LD1117DT12TR

Name: LD1117DT12TR
Rating: 4.7 (12 reviews)

IC REG LINEAR 1.2V 800MA DPAK

製造商
製造商。部分 #LD1117DT12TR
包 TO-252-3,DPAK(2Leads+Tab),SC-63
資料表 LD1117DT12TR DataSheet
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規格

Package	Tape & Reel (TR),Cut Tape (CT)
ProductStatus	Active
OutputConfiguration	Positive
OutputType	Fixed
NumberofRegulators	1
Voltage-Input(Max)	15V
Voltage-Output(Min/Fixed)	1.2V
VoltageDropout(Max)	1.2V @ 800mA
Current-Output	800mA
Current-Quiescent(Iq)	5 mA
PSRR	75dB (120Hz)
ProtectionFeatures	Over Current, Over Temperature
OperatingTemperature	0°C ~ 125°C
MountingType	Surface Mount
Package/Case	TO-252-3, DPak (2 Leads + Tab), SC-63

概述

Description

The LD1117DT12TR is a low-dropout (LDO) voltage regulator component. It is designed to provide a stable output voltage with a relatively low input-to-output voltage differential. This specific model typically offers a fixed output voltage, commonly 1.2V, and is capable of delivering a maximum output current of 800mA. The device is packaged in a DPAK (TO-252) form factor, making it suitable for surface-mounted applications. It features thermal shutdown and current limit protection to enhance its reliability and safety under various operating conditions. The "TR" in its designation indicates that it comes in a tape and reel package, which is ideal for automated manufacturing processes. The LD1117DT12TR is commonly used in applications requiring efficient power regulation, such as microcontroller power supplies, battery-powered devices, and consumer electronics, due to its ease of use, compact size, and effective performance.

Features

The LD1117DT12TR is a low-dropout (LDO) voltage regulator. Key features include:
1. Output Voltage: It provides a fixed output voltage of 1.2V.
2. Dropout Voltage: It has a low dropout voltage, typically around 1.2V at maximum output current.
3. Output Current: Supports an output current of up to 800 mA.
4. Stability: Requires minimal external components for stable operation.
5. Thermal Protection: Includes internal thermal shutdown features to protect against overheating.
6. Short-circuit Protection: Equipped with current-limiting protection to prevent damage from short circuits.
7. Low Quiescent Current: Optimized for low power consumption to enhance efficiency.
8. Package: Available in a DPAK package, suitable for surface-mount assembly.
These features make the LD1117DT12TR suitable for a range of applications in powering microprocessors and other digital circuits where a stable 1.2V supply is required.

Package

The LD1117DT12TR is a low dropout (LDO) voltage regulator in a DPAK (TO-252) surface-mount package. This package type is commonly used for power management applications due to its compact size and ability to handle moderate power levels with effective heat dissipation.

Pinout

The LD1117DT12TR is a linear voltage regulator from the LD1117 series. It typically comes in a DPAK package, which is a type of SMD (Surface-Mount Device) package. The DPAK configuration generally has three pins.
For the LD1117 series, the pin functions are as follows:
1. Pin 1 (ADJ/GND): In adjustable versions, this pin is used for external resistors to set the output voltage. In fixed versions like the LD1117DT12TR (which is a 1.2V fixed output), this pin is the Ground (GND) pin.

2. Pin 2 (VOUT): This is the output pin where the regulated voltage (1.2V in this case) is provided.
3. Pin 3 (VIN): This is the input pin where the unregulated input voltage is supplied.
An additional tab is used for heat dissipation and is usually connected to ground. Always refer to the manufacturer’s datasheet for specific details and operational specifications.

Manufacturer

The LD1117DT12TR is manufactured by STMicroelectronics. STMicroelectronics is a global semiconductor company that designs, develops, and manufactures a wide range of semiconductor products. It is known for producing integrated circuits, discrete and analog devices, microcontrollers, sensors, and power management solutions, among others. Headquartered in Geneva, Switzerland, the company serves a variety of markets, including automotive, industrial, personal electronics, and communications equipment. STMicroelectronics is recognized for its innovation in technology and its contributions to enhancing electronic applications worldwide.

Application

The LD1117DT12TR is a low-dropout (LDO) voltage regulator commonly used in applications requiring a stable and precise voltage supply. Key application areas include powering microcontrollers, sensors, and RF modules in consumer electronics, communication devices, and industrial equipment. It is also used in battery-powered devices due to its low-dropout feature, which maximizes battery life. Additionally, it serves in voltage regulation for embedded systems, networking equipment, and automotive electronics.

Equivalent

The LD1117DT12TR is a low-dropout linear voltage regulator that provides a 1.2V output. Equivalent products include:
1. LM1117-1.2 by Texas Instruments
2. NCP1117ST12T3G by ON Semiconductor
3. AMS1117-1.2 by Advanced Monolithic Systems
4. AP1117E12 by Diodes Incorporated
These alternatives offer similar functionality and specifications, but always check the datasheet for pin compatibility and specific performance parameters.