LP38842MR-ADJ

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LP38842MR-ADJ

IC REG LINEAR POS ADJ 1.5A 8SO

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仕様

Part Status Obsolete
Output Configuration Positive
Output Type Adjustable
Number of Regulators 1
Voltage - Input (Max) 5.5V
Voltage - Output (Min/Fixed) 0.56V
Voltage - Output (Max) 1.5V
Voltage Dropout (Max) 0.115V @ 1.5A
Current - Output 1.5A
Current - Quiescent (Iq) 30 µA
Current - Supply (Max) 40 mA
PSRR 58dB ~ 80dB (120Hz ~ 1kHz)
Control Features Enable
Protection Features Over Current, Over Temperature, Short Circuit
Operating Temperature -40°C ~ 125°C
Mounting Type Surface Mount
Package / Case 8-PowerSOIC (0.154", 3.90mm Width)
Supplier Device Package 8-SO PowerPad
Base Product Number LP38842

概要

Description

The LP38842MR-ADJ is a high-current, low-dropout (LDO) voltage regulator designed for applications requiring efficient power management. It features adjustable output voltages, allowing users to set the desired output level tailored to specific needs. With a typical dropout voltage of 0.5V at full load, the LP38842MR-ADJ ensures stable operation even in conditions where the input voltage is only slightly higher than the desired output.
Key characteristics include high output current capability, usually around 1.5A or more, making it suitable for powering demanding components such as microprocessors and digital signal processors. The device also has excellent transient response and low quiescent current, which helps in extending battery life in portable devices. Furthermore, it is equipped with features like thermal shutdown and current limit protection to safeguard against over-temperature and over-current conditions.
The LP38842MR-ADJ is typically housed in a thermally enhanced package, improving heat dissipation in applications with limited space. Its versatility and robust performance make it a popular choice for consumer electronics, telecommunications, and computing applications where reliable voltage regulation is critical.

Features

The LP38842MR-ADJ is a low-dropout (LDO) voltage regulator designed for applications requiring high current and low voltage. Key features include:
1. Output Current: Capable of delivering up to 1.5A of output current.
2. Adjustable Output Voltage: The output voltage can be adjusted, providing flexibility for various applications.
3. Low Dropout Voltage: Offers a low dropout of typically 240 mV at 1.5A, which is ideal for low-voltage applications.
4. Thermal Protection: Integrated thermal protection to prevent overheating, ensuring reliability and durability.
5. Current Limiting: Built-in current limiting feature to protect against overcurrent conditions.
6. Fast Transient Response: Designed to quickly respond to changes in load conditions.
7. Low Ground Pin Current: Efficient operation with low ground pin current, which is beneficial for battery-powered devices.
8. Stability: Stable with low ESR (Equivalent Series Resistance) capacitors, enhancing performance and reliability.
9. Package Options: Available in various package configurations to suit different design requirements.
These features make the LP38842MR-ADJ suitable for use in high-performance microprocessor applications, consumer electronics, and other environments requiring efficient power management.

Package

The LP38842MR-ADJ is typically supplied in a TO-263 surface-mount package. This package type is known for its efficient heat dissipation and is commonly used for voltage regulators and power management ICs.

Pinout

The LP38842MR-ADJ is an adjustable linear voltage regulator produced by Texas Instruments. It is housed in a TO-263 (DDPAK) package and typically has a 5-pin configuration. Here’s a brief overview of its pin functions:
1. VIN (Input Voltage): Supplies the input voltage to the regulator.
2. VOUT (Output Voltage): Provides the regulated output voltage.
3. ADJ (Adjust): Used to set the output voltage by connecting it to a resistor divider network.
4. SENSE (Sense): Helps in improving load regulation by sensing the output voltage directly at the load.
5. GND (Ground): Common ground connection for the device.
The LP38842MR-ADJ is specifically designed for high-current applications and provides a low-dropout voltage regulation, making it suitable for powering high-performance digital circuits. It is known for its high power-supply rejection ratio and low output noise.

Manufacturer

The LP38842MR-ADJ is manufactured by Texas Instruments. Texas Instruments is a global semiconductor company that designs and produces a wide range of electronic components and systems. They are known for their expertise in analog and embedded processing, and their products are used in various industries, including automotive, industrial, personal electronics, and communications equipment.

Application

The LP38842MR-ADJ is a low-dropout (LDO) linear voltage regulator commonly used in applications requiring efficient power management and stable output voltage. Its primary application areas include powering microcontrollers, digital signal processors, and other digital circuits in consumer electronics, telecommunications, and automotive systems. It is also used in battery-powered devices due to its ability to provide a stable output with minimal power loss, making it ideal for extending battery life. Its adjustable output voltage capability makes it versatile for various circuit requirements.

Equivalent

The LP38842MR-ADJ is a low-dropout (LDO) voltage regulator. Equivalent products from other manufacturers could include the MIC29302 from Microchip Technology, the LT1085 from Analog Devices, and the LM1085 from Texas Instruments. These products offer similar functionalities, including adjustable output voltage and low dropout characteristics. Always check the datasheets for exact specifications and compatibility.

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出荷料参照(DHL/FedEx):

DHL の: 配送費は25ドル〜45ドル(0.5kg)の範囲で、推定配送時間は2〜5営業日です。

フェデックス: 配送費は25ドル〜40ドル(0.5kg)の範囲で、推定配送時間は3〜7営業日。

UPS の: 配送費は25ドル〜45ドル(0.5kg)の範囲で、推定配送時間は3〜7営業日。

TNT社: 配送費は25ドル〜65ドル(0.5kg)の範囲で、推定配送時間は3〜7営業日。

EMS: 配送料金は30〜50ドル(0.5kg)の範囲で、推定配送時間は7〜15営業日です。

登録航空郵便: 配送費は2〜4ドル(0.1kg)で、推定配送時間は5〜20営業日です。

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