LP38691DTX-3.3

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LP38691DTX-3.3

IC REG LINEAR 3.3V 500MA TO252-3

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規格

Part Status Obsolete
Output Configuration Positive
Output Type Fixed
Number of Regulators 1
Voltage - Input (Max) 10V
Voltage - Output (Min/Fixed) 3.3V
Voltage Dropout (Max) 0.55V @ 500mA
Current - Output 500mA
Current - Quiescent (Iq) 55 µA
Current - Supply (Max) 100 µA
PSRR 55dB (120Hz)
Protection Features Over Temperature
Operating Temperature -40°C ~ 125°C
Mounting Type Surface Mount
Package / Case TO-252-3, DPAK (2 Leads + Tab), SC-63
Supplier Device Package TO-252-3
Base Product Number LP38691

概述

Description

The LP38691DTX-3.3 is a low-dropout (LDO) linear voltage regulator designed by Texas Instruments. It is part of the LP38691 series, known for providing a stable output voltage with low input-to-output voltage differential, making it suitable for use in battery-powered and portable electronic devices.
Key features include:
1. Output Voltage: The "3.3" in the part number indicates it provides a fixed output voltage of 3.3 volts.
2. Dropout Voltage: It has a low dropout voltage, typically around 0.24V at full load, which helps in maximizing efficiency.
3. Current Capability: The device supports an output current of up to 500 mA.
4. Quiescent Current: It features low quiescent current, which conserves energy when the device is not fully loaded.
5. Protection Features: It incorporates thermal shutdown and current limit protection to safeguard against overheating and overcurrent conditions.
6. Package: The "DTX" in the part number refers to the SOT-223 package type, a small, surface-mount format conducive to space-constrained applications.
Overall, the LP38691DTX-3.3 is a reliable choice for applications requiring efficient voltage regulation with minimal power loss.

Features

The LP38691DTX-3.3 is a low-dropout (LDO) linear voltage regulator designed by Texas Instruments. Key features of this component include:
1. Output Voltage: It provides a fixed output voltage of 3.3V.
2. Input Voltage Range: It operates with an input voltage range from 2.7V to 10V.
3. Output Current: It can deliver an output current of up to 500 mA.
4. Low Dropout Voltage: It features a low dropout voltage, typically around 200 mV at full load, enhancing efficiency, especially in battery-powered applications.
5. Quiescent Current: The device has a low quiescent current, typically in the range of 20 µA, which is beneficial for power-sensitive applications.
6. Thermal Protection: It includes built-in thermal protection to prevent overheating.
7. Current Limiting: The regulator has current limiting to protect against short circuits.
8. Enable Pin: It includes an enable pin for easy on/off control.
9. Stability: Designed for stable operation with a wide range of output capacitors.
10. Package: Available in a small SOT-223 package, making it suitable for space-constrained designs.
These features make the LP38691DTX-3.3 ideal for applications requiring stable voltage regulation with low power consumption.

Package

The LP38691DTX-3.3 is a low-dropout (LDO) linear voltage regulator, typically packaged in a SOT-223 surface-mount package. This package type is designed for efficient heat dissipation and compact applications, making it suitable for use in various electronic circuits requiring stable voltage regulation.

Pinout

The LP38691DTX-3.3 is a low-dropout (LDO) voltage regulator from Texas Instruments. It is designed to provide a stable 3.3V output.
Pin Count:
The device typically comes in an 8-pin package, specifically the SOIC-8 package.
Function:
1. VIN (Input Voltage): The pin where the input voltage is supplied.
2. GND (Ground): The pin connected to ground.
3. VOUT (Output Voltage): The pin from which the regulated 3.3V output is drawn.
4. NC (No Connect)/Other Pins: Unused or other functional pins like enable (EN) or feedback (FB) depending on specific configurations or package variations.
The LP38691 provides a stable output voltage with low noise and high accuracy, useful for powering digital circuits, microcontrollers, and other devices requiring precise voltage regulation. Additionally, it has features like short-circuit protection, thermal overload protection, and low quiescent current.

Manufacturer

The LP38691DTX-3.3 is manufactured by Texas Instruments. Texas Instruments (TI) is an American technology company that designs and manufactures semiconductors and various integrated circuits, which it sells to electronics designers and manufacturers globally. Its products are used in various applications, including consumer electronics, automotive systems, industrial automation, and more. TI is recognized for its significant contributions to the semiconductor industry and its role in advancing technological innovation.

Application

The LP38691DTX-3.3 is a low-dropout linear voltage regulator primarily used in applications requiring a stable 3.3V output. It is ideal for powering microcontrollers, sensors, and other digital circuits in consumer electronics, telecommunications, automotive systems, and industrial equipment. Its low dropout voltage and low noise make it suitable for battery-powered devices and portable electronics. Additionally, it can be used in systems requiring efficient power management and thermal performance.

Equivalent

The LP38691DTX-3.3 is a low-dropout (LDO) voltage regulator. Equivalent products include the AMS1117-3.3, MIC5205-3.3, MCP1702-3302, and the LT1963A-3.3. These alternatives offer similar voltage regulation features and output voltages, but you should verify specific parameters like current output, dropout voltage, and package type to ensure compatibility.

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