Спецификации
| Атрибут | Ценность |
| Package | Tape & Reel (TR),Bulk |
| ProductStatus | Obsolete |
| OutputConfiguration | Positive |
| OutputType | Fixed |
| NumberofRegulators | 1 |
| Voltage-Input(Max) | 10V |
| Voltage-Output(Min/Fixed) | 3.3V |
| VoltageDropout(Max) | 1V @ 1A |
| Current-Output | 1A |
| Current-Quiescent(Iq) | 55 µA |
| Current-Supply(Max) | 100 µA |
| PSRR | 55dB (120Hz) |
| ProtectionFeatures | Over Temperature |
| OperatingTemperature | -40°C ~ 125°C |
| MountingType | Surface Mount |
| Package/Case | TO-252-3, DPak (2 Leads + Tab), SC-63 |
Обзор
Description
The LP38690DTX-3.3 is a low-dropout (LDO) voltage regulator designed to provide a stable 3.3V output from a higher input voltage. It is part of Texas Instruments' LP38690 series, known for its high-performance, low-noise, and low-dropout voltage characteristics. This regulator is suitable for applications requiring efficient power management and precise voltage regulation, such as microcontrollers, DSPs, and other digital circuits.
Key features of the LP38690DTX-3.3 include a dropout voltage of approximately 200 mV at full load, a maximum output current capability of 1A, and thermal protection for enhanced reliability. It also offers excellent line and load regulation, ensuring minimal output voltage variation despite changes in input voltage or load current. The device comes in a compact surface-mount package, making it ideal for space-constrained designs.
Overall, the LP38690DTX-3.3 is an efficient and reliable solution for powering sensitive electronic components, ensuring stable operation in various electronic applications.
Key features of the LP38690DTX-3.3 include a dropout voltage of approximately 200 mV at full load, a maximum output current capability of 1A, and thermal protection for enhanced reliability. It also offers excellent line and load regulation, ensuring minimal output voltage variation despite changes in input voltage or load current. The device comes in a compact surface-mount package, making it ideal for space-constrained designs.
Overall, the LP38690DTX-3.3 is an efficient and reliable solution for powering sensitive electronic components, ensuring stable operation in various electronic applications.
Equivalent
The LP38690DTX-3.3 is a low-dropout (LDO) linear voltage regulator. Equivalent products include:
1. Microchip MCP1825S-3302E/DB: Offers similar specifications in terms of output voltage and current.
2. ON Semiconductor NCP1117ST33T3G: Provides similar functionality with a 3.3V output.
3. AMS1117-3.3: A widely used LDO with comparable output characteristics.
4. STMicroelectronics LD1117S33TR: Another LDO with similar output voltage and current ratings.
Always check datasheets for exact compatibility.
1. Microchip MCP1825S-3302E/DB: Offers similar specifications in terms of output voltage and current.
2. ON Semiconductor NCP1117ST33T3G: Provides similar functionality with a 3.3V output.
3. AMS1117-3.3: A widely used LDO with comparable output characteristics.
4. STMicroelectronics LD1117S33TR: Another LDO with similar output voltage and current ratings.
Always check datasheets for exact compatibility.
Features
The LP38690DTX-3.3 is a low-dropout linear voltage regulator by Texas Instruments, designed to provide a stable 3.3V output from a higher input voltage. It offers several key features:
1. Output Current: Capable of delivering up to 1A of output current.
2. Low Dropout Voltage: Ensures efficient operation with a dropout voltage of typically 200mV at full load.
3. Low Noise: Designed with low noise performance, suitable for sensitive analog circuits.
4. High Accuracy: Provides a high output voltage accuracy of ±2% over load, line, and temperature variations.
5. Thermal Protection: Includes thermal shutdown to protect the device from overheating.
6. Short-Circuit Protection: Safeguards against output short circuits.
7. Low Quiescent Current: Features low standby current, improving efficiency during low-load conditions.
8. Stability: Requires only small ceramic capacitors for stability, minimizing board space.
9. Package Options: Available in various surface-mount packages for flexible design integration.
These features make the LP38690DTX-3.3 well-suited for applications requiring efficient power regulation with minimal thermal and electrical noise impact.
1. Output Current: Capable of delivering up to 1A of output current.
2. Low Dropout Voltage: Ensures efficient operation with a dropout voltage of typically 200mV at full load.
3. Low Noise: Designed with low noise performance, suitable for sensitive analog circuits.
4. High Accuracy: Provides a high output voltage accuracy of ±2% over load, line, and temperature variations.
5. Thermal Protection: Includes thermal shutdown to protect the device from overheating.
6. Short-Circuit Protection: Safeguards against output short circuits.
7. Low Quiescent Current: Features low standby current, improving efficiency during low-load conditions.
8. Stability: Requires only small ceramic capacitors for stability, minimizing board space.
9. Package Options: Available in various surface-mount packages for flexible design integration.
These features make the LP38690DTX-3.3 well-suited for applications requiring efficient power regulation with minimal thermal and electrical noise impact.
Pinout
The LP38690DTX-3.3 is a low-dropout (LDO) voltage regulator produced by Texas Instruments. It typically comes in an SOT-223 package, which has a 3-pin configuration. Here's a breakdown of its pin functions:
1. Pin 1 (VIN): This is the input pin where the unregulated input voltage is applied. It supplies power to the regulator.
2. Pin 2 (GND): This is the ground pin, which acts as the reference point for the input and output voltages.
3. Pin 3 (VOUT): This pin is the output where the regulated 3.3V voltage is provided.
The LP38690DTX-3.3 is designed for applications requiring a stable 3.3V output, with a maximum output current of up to 1A. It features low dropout voltage, making it suitable for use with battery-powered devices, and it provides good performance in terms of noise, stability, and transient response.
1. Pin 1 (VIN): This is the input pin where the unregulated input voltage is applied. It supplies power to the regulator.
2. Pin 2 (GND): This is the ground pin, which acts as the reference point for the input and output voltages.
3. Pin 3 (VOUT): This pin is the output where the regulated 3.3V voltage is provided.
The LP38690DTX-3.3 is designed for applications requiring a stable 3.3V output, with a maximum output current of up to 1A. It features low dropout voltage, making it suitable for use with battery-powered devices, and it provides good performance in terms of noise, stability, and transient response.
Manufacturer
The LP38690DTX-3.3 is a low-dropout (LDO) regulator manufactured by Texas Instruments. Texas Instruments, commonly referred to as TI, is an American technology company that designs and manufactures semiconductors and various integrated circuits. It is one of the largest semiconductor companies in the world and is known for its innovation and extensive product range, which includes analog chips, digital signal processors, and microcontrollers. Texas Instruments serves a diverse range of industries, including automotive, industrial, personal electronics, and communications equipment.
Application
The LP38690DTX-3.3 is a low-dropout (LDO) linear voltage regulator commonly used in applications requiring a stable 3.3V power supply. Its typical application areas include:
1. Consumer Electronics: Provides reliable power for devices like smartphones, tablets, and cameras.
2. Industrial Equipment: Ensures stable voltage for sensors, microcontrollers, and communication modules.
3. Networking Hardware: Powers components like routers and modems.
4. Medical Devices: Supplies consistent voltage for sensitive diagnostic tools.
5. Automotive Systems: Supports infotainment systems and electronic control units (ECUs).
6. Communications Equipment: Used in wireless and wired communication devices.
The LP38690DTX-3.3 is valued for its low noise, high precision, and efficiency in battery-operated devices.
1. Consumer Electronics: Provides reliable power for devices like smartphones, tablets, and cameras.
2. Industrial Equipment: Ensures stable voltage for sensors, microcontrollers, and communication modules.
3. Networking Hardware: Powers components like routers and modems.
4. Medical Devices: Supplies consistent voltage for sensitive diagnostic tools.
5. Automotive Systems: Supports infotainment systems and electronic control units (ECUs).
6. Communications Equipment: Used in wireless and wired communication devices.
The LP38690DTX-3.3 is valued for its low noise, high precision, and efficiency in battery-operated devices.
Package
The LP38690DTX-3.3 is a low-dropout (LDO) linear voltage regulator packaged in an 8-lead WSON (Wafer Level Small Outline No-Lead) package. This package type is compact, providing efficient thermal performance suitable for space-constrained applications.
