LM340S-12

Name: LM340S-12
Rating: 4.5 (10 reviews)

Voltage Regulator, 12V, SIP

7,004 有效庫存

LM340S-12

有效庫存7,004

Voltage Regulator, 12V, SIP

製造商零件號 # : LM340S-12
包裝/封裝: TO-263
製造商: Texas Instruments
產品分類 : Voltage Regulators - Linear, Low Drop Out (LDO) Regulators

品質保證

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服務與包裝

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關於包裝

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例子

捲帶式

剪膠帶

管或託盤

LM340S-12 數據表

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詳細說明

Offering internal thermal shutdown and short-circuit protection, the LM340S-12 is engineered for robust performance under challenging conditions. Its low dropout voltage and superior line and load regulation guarantee a steady output voltage even in fluctuating environments. This linear voltage regulator is a member of the LM340 family, known for its quality and precision in voltage regulation. Whether used in industrial equipment, automotive systems, or consumer electronics, the LM340S-12 delivers consistent 12-volt power with efficiency and reliability

主要特徵

Complete specifications at 1A load
Output voltage tolerances of ±2% at Tj = 25˚C and ±4%
over the temperature range (LM340A)
Line regulation of 0.01% of VOUT/V of ∆VIN at 1A load
(LM340A)
Load regulation of 0.3% of VOUT/A (LM340A)
Internal thermal overload protection
Internal short-circuit current limit
Output transistor safe area protection
P+ Product Enhancement tested

規格

以下是所選零件的基本參數，涉及零件的特性及其所屬類別。

Product Category !	Linear Voltage Regulators	RoHS	N
Mounting Style	SMD/SMT	Package / Case	TO-263
Number of Outputs	1 Output	Polarity	Positive
Output Voltage	12 V	Output Current !	2.4 A
Output Type	Fixed	Input Voltage, Min	14.6 V
Input Voltage, Max	35 V	Minimum Operating Temperature	0 C
Maximum Operating Temperature !	+ 125 C	Load Regulation !	120 mV
Line Regulation !	120 mV	Quiescent Current !	8 mA
Brand	Texas Instruments	Dropout Voltage - Max	2 V
Product Type !	Linear Voltage Regulators	Factory Pack Quantity	45
Subcategory	PMIC - Power Management ICs	Unit Weight	0.056438 oz

數據表 PDF

數據表記錄了器件的特性、絕對最大額定值、應用等，這對於作為器件特定應用的整體指南大有裨益。

初步規格 LM340S-12 PDF 下載

常見問題解答

What is LM340S-12?

The LM340S-12 is a 12V voltage regulator integrated circuit (IC) designed by Texas Instruments. It is part of the LM340 series of three-terminal positive voltage regulators, offering a fixed output voltage of 12V. The device is commonly used in various power supply applications, including voltage regulation in DC-DC converters, battery chargers, and adjustable power supplies.

How Does LM340S-12 Work?

The LM340S-12 works by regulating an input voltage and providing a stable 12V output voltage. It operates as a linear regulator, utilizing an internal voltage reference and feedback mechanism to maintain the desired output voltage. The device can accommodate input voltages higher than 12V and provide a regulated 12V output, making it suitable for a wide range of applications.

How Many Pins does LM340S-12 have and What are the Functions of the Pinout Configuration?

The LM340S-12 is housed in a TO-263 (D2PAK) package with 3 pins. The pinout configuration includes:

Input (Vin): The input pin for the unregulated DC voltage.
Common (GND): The common ground pin.
Output (Vout): The regulated 12V output pin.

What are the Pros and Cons of LM340S-12?

Pros:

Fixed Output Voltage: Offers a fixed 12V output, eliminating the need for external voltage regulation circuitry.
Simple Design: Requires minimal external components, making it easy to use in various applications.
Overcurrent Protection: Provides protection against overcurrent conditions, enhancing system reliability.
Thermal Shutdown: Incorporates thermal shutdown circuitry to prevent damage from excessive heat.

Cons:

Heat Dissipation: May require a heat sink for applications with high power dissipation.
Dropout Voltage: The dropout voltage of the regulator can affect its efficiency, especially in low input voltage scenarios.

Are There Any Equivalents/Alternatives to LM340S-12 for Recommendation?

The LM7812 from Texas Instruments is a similar 12V voltage regulator with a TO-220 package.
Alternatives to the LM340S-12 include the L7812CV from STMicroelectronics and the UA7812 from Texas Instruments.

快速詢價

LM340S-12

LM340S-12

品質保證

運輸與付款

服務與包裝

快速報價

詳細說明

主要特徵

規格

數據表 PDF