仕様
| 属性 | 値 |
| Package / Case | Tape & Reel (TR),Cut Tape (CT) |
| Part Status | Obsolete |
| Output Configuration | Positive |
| Output Type | Fixed |
| Number of Regulators | 1 |
| Voltage - Input (Max) | 13V |
| Voltage - Output (Min/Fixed) | 1.5V |
| Voltage Dropout (Max) | 1.3V @ 3A |
| Current - Output | 3A |
| Current - Quiescent (Iq) | 7 mA |
| Current - Supply (Max) | 13 mA |
| PSRR | 60 ~ 72 dB (120Hz) |
| Protection Features | Over Current, Over Temperature |
| Operating Temperature | 0°C ~ 125°C |
| Mounting Type | Surface Mount |
概要
Description
The LMS1587CSX-1.5 is a voltage regulator from the LMS1587 series, designed to provide a stable output voltage of 1.5V. This device is commonly used in electronic circuits to ensure a consistent power supply to sensitive components. It operates with a dropout voltage, meaning it can efficiently regulate the output even when the input voltage is slightly above the desired output voltage. The "CSX" denotes the package type, typically a surface-mount configuration, which aids in compact and efficient circuit board designs. This regulator is appreciated for its reliability, thermal protection, and ease of use in various applications, including computer hardware, telecommunications equipment, and other consumer electronics. It generally features built-in current limiting and thermal overload protection, guarding against circuit damage under high-load conditions. The LMS1587CSX-1.5 provides a balance of performance, size, and efficiency, making it suitable for both professional and hobbyist applications where stable power delivery is crucial.
Equivalent
The LMS1587CSX-1.5 is a low-dropout (LDO) voltage regulator. Equivalent products might include:
1. LM317: Adjustable voltage regulator that can be configured to output 1.5V.
2. LT1086CT-1.5: A fixed 1.5V LDO regulator.
3. MIC29302WT: Offers fixed and adjustable outputs.
4. AMS1117-1.5: A 1.5V fixed LDO regulator.
5. NCP1117DT15: A fixed 1.5V output LDO.
Ensure compatibility by checking the electrical characteristics such as output current, voltage, and package type.
1. LM317: Adjustable voltage regulator that can be configured to output 1.5V.
2. LT1086CT-1.5: A fixed 1.5V LDO regulator.
3. MIC29302WT: Offers fixed and adjustable outputs.
4. AMS1117-1.5: A 1.5V fixed LDO regulator.
5. NCP1117DT15: A fixed 1.5V output LDO.
Ensure compatibility by checking the electrical characteristics such as output current, voltage, and package type.
Features
The LMS1587CSX-1.5 is a low-dropout (LDO) linear voltage regulator known for its efficiency and reliability. Here are its key features:
1. Output Current: It supports a maximum output current of 1.5A.
2. Low Dropout Voltage: Exhibits a low dropout voltage, which is crucial for efficient power management, typically around 1.2V at full load.
3. Output Voltage: Provides a fixed output voltage, often at 1.8V, 2.5V, 2.85V, or 3.3V variants.
4. Thermal Protection: It includes thermal shutdown protection to prevent overheating.
5. Short-Circuit Protection: Equipped with current limiting to protect against short circuits.
6. Operating Temperature Range: Functions effectively over a wide temperature range, typically from -40°C to +125°C.
7. Surface-Mount Package: Available in TO-263 and similar surface-mount packages for ease of use in compact designs.
8. Applications: Ideal for powering microprocessors, microcontrollers, and other digital circuits requiring stable voltage.
These features make the LMS1587CSX-1.5 suitable for applications demanding reliable and stable voltage regulation in compact electronic devices.
1. Output Current: It supports a maximum output current of 1.5A.
2. Low Dropout Voltage: Exhibits a low dropout voltage, which is crucial for efficient power management, typically around 1.2V at full load.
3. Output Voltage: Provides a fixed output voltage, often at 1.8V, 2.5V, 2.85V, or 3.3V variants.
4. Thermal Protection: It includes thermal shutdown protection to prevent overheating.
5. Short-Circuit Protection: Equipped with current limiting to protect against short circuits.
6. Operating Temperature Range: Functions effectively over a wide temperature range, typically from -40°C to +125°C.
7. Surface-Mount Package: Available in TO-263 and similar surface-mount packages for ease of use in compact designs.
8. Applications: Ideal for powering microprocessors, microcontrollers, and other digital circuits requiring stable voltage.
These features make the LMS1587CSX-1.5 suitable for applications demanding reliable and stable voltage regulation in compact electronic devices.
Pinout
The LMS1587CSX-1.5 is a low-dropout (LDO) voltage regulator. It is typically packaged in a TO-263 or TO-220 form factor, which features three pins.
1. Pin 1 (ADJ/GND): This pin is used for ground (GND) in fixed voltage versions and adjustment (ADJ) in adjustable versions. For the LMS1587CSX-1.5, which is a fixed output version, this pin is connected to ground.
2. Pin 2 (OUTPUT): The output pin provides the regulated output voltage. For this specific model, it outputs a fixed 1.5 volts.
3. Pin 3 (INPUT): The input pin is where the unregulated input voltage is supplied. The input voltage must be higher than the desired output voltage by a certain headroom to ensure proper regulation.
This LDO is designed for applications requiring moderate current and precise voltage regulation, providing a stable output with minimal dropout voltage. The fixed 1.5V output makes it suitable for supplying power to digital circuits, microcontrollers, and other devices that operate at this voltage level.
1. Pin 1 (ADJ/GND): This pin is used for ground (GND) in fixed voltage versions and adjustment (ADJ) in adjustable versions. For the LMS1587CSX-1.5, which is a fixed output version, this pin is connected to ground.
2. Pin 2 (OUTPUT): The output pin provides the regulated output voltage. For this specific model, it outputs a fixed 1.5 volts.
3. Pin 3 (INPUT): The input pin is where the unregulated input voltage is supplied. The input voltage must be higher than the desired output voltage by a certain headroom to ensure proper regulation.
This LDO is designed for applications requiring moderate current and precise voltage regulation, providing a stable output with minimal dropout voltage. The fixed 1.5V output makes it suitable for supplying power to digital circuits, microcontrollers, and other devices that operate at this voltage level.
Manufacturer
The LMS1587CSX-1.5 is manufactured by Texas Instruments (TI). Texas Instruments is a technology company that designs and manufactures semiconductors and various integrated circuits, which are used in electronic devices across a wide range of industries. Founded in 1930 and headquartered in Dallas, Texas, TI is one of the largest semiconductor companies in the world. The company focuses on the development of analog chips and embedded processors, which are essential components in modern electronic systems. Texas Instruments serves a broad array of markets, including automotive, industrial, personal electronics, communications equipment, and enterprise systems.
Application
The LMS1587CSX-1.5 is a low dropout voltage regulator primarily used for applications requiring efficient voltage regulation with minimal input-output voltage differential. Its key application areas include powering microprocessors, post-regulation in switching power supplies, and voltage regulation in computer motherboards and peripherals. It's also used in consumer electronics, telecommunications equipment, and industrial automation systems where stable voltage output is critical. Its ability to handle large load currents and maintain low dropout makes it suitable for battery-powered devices and systems requiring high efficiency and thermal performance.
Package
The LMS1587CSX-1.5 is a low-dropout (LDO) voltage regulator packaged in a TO-263 surface-mount package. This package type is also known as DDPAK or D²PAK, which is designed for efficient heat dissipation and is suitable for high-power applications.
