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ST1S40IDR
+BOMIC REG BUCK ADJUSTABLE 3A 8SO
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Nhà sản xuấtSTMicroelectronics
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Ông. Phần #ST1S40IDR
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Bảng dữ liệu ST1S40IDR DataSheet
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Gói SO-8-BW
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Có sẵn2260
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Thông số kỹ thuật
| thuộc tính | Giá trị |
| Package | Tape & Reel (TR),Cut Tape (CT) |
| ProductStatus | Active |
| Function | Step-Down |
| OutputConfiguration | Positive |
| Topology | Buck |
| OutputType | Adjustable |
| NumberofOutputs | 1 |
| Voltage-Input(Min) | 4V |
| Voltage-Input(Max) | 18V |
| Voltage-Output(Min/Fixed) | 0.8V |
| Voltage-Output(Max) | 18V |
| Current-Output | 3A |
| Frequency-Switching | 850kHz |
| SynchronousRectifier | Yes |
| OperatingTemperature | -40°C ~ 150°C (TJ) |
| MountingType | Surface Mount |
| Package/Case | 8-SOIC (0.154, 3.90mm Width) |
Tổng quan
Description
The ST1S40IDR is a step-down monolithic power switching regulator designed for efficient voltage regulation in various electronic applications. Manufactured by STMicroelectronics, this device is typically used to convert a higher input voltage to a lower output voltage with high efficiency, making it suitable for power management tasks in consumer electronics, industrial equipment, and other embedded systems.
Key features of the ST1S40IDR include a wide input voltage range, typically around 4.0V to 18V, which allows for flexibility in different power supply configurations. It can deliver up to 0.9A of continuous output current, which is sufficient for small to medium power applications. The device incorporates an internal power MOSFET, which simplifies design by reducing external component count.
The ST1S40IDR also features an adjustable output voltage, thermal shutdown, and built-in overcurrent protection, which enhance its reliability and safety. Its compact SO-8 package makes it suitable for space-constrained applications. Overall, the ST1S40IDR is valued for its efficiency, reliability, and ease of use in step-down voltage conversion applications.
Key features of the ST1S40IDR include a wide input voltage range, typically around 4.0V to 18V, which allows for flexibility in different power supply configurations. It can deliver up to 0.9A of continuous output current, which is sufficient for small to medium power applications. The device incorporates an internal power MOSFET, which simplifies design by reducing external component count.
The ST1S40IDR also features an adjustable output voltage, thermal shutdown, and built-in overcurrent protection, which enhance its reliability and safety. Its compact SO-8 package makes it suitable for space-constrained applications. Overall, the ST1S40IDR is valued for its efficiency, reliability, and ease of use in step-down voltage conversion applications.
Equivalent
The ST1S40IDR is a step-down DC-DC converter. Equivalent products might include:
1. Texas Instruments TPS54331 - 3 A, step-down converter.
2. Microchip MIC28510 - 4 A, buck regulator.
3. Diodes Incorporated AP6503 - 3 A, step-down converter.
4. ON Semiconductor NCP1014 - Switching regulator.
Ensure compatibility by checking parameters like input/output voltage, current rating, switching frequency, and package type.
1. Texas Instruments TPS54331 - 3 A, step-down converter.
2. Microchip MIC28510 - 4 A, buck regulator.
3. Diodes Incorporated AP6503 - 3 A, step-down converter.
4. ON Semiconductor NCP1014 - Switching regulator.
Ensure compatibility by checking parameters like input/output voltage, current rating, switching frequency, and package type.
Features
The ST1S40IDR is a step-down monolithic power switching regulator. Key features include:
1. Input Voltage Range: Operates efficiently from 4.0V to 18V, making it versatile for various applications.
2. Output Current: Provides up to 1.5A of continuous output current, suitable for powering a wide range of devices.
3. Efficiency: High efficiency, up to 93%, which helps in minimizing heat generation and power loss.
4. Switching Frequency: Fixed frequency operation at 850 kHz, contributing to reduced component size and cost.
5. Output Voltage: Adjustable output voltage down to 0.8V, allowing flexibility in use for different applications.
6. Protection Features: Includes overcurrent protection, thermal shutdown, and soft-start functionality to enhance reliability and safety.
7. Package: Available in compact SO-8 package, which is beneficial for space-constrained designs.
8. Topology: Utilizes a current mode PWM control, improving performance and transient response.
These features make the ST1S40IDR suitable for applications in consumer electronics, industrial systems, and other areas requiring efficient voltage regulation.
1. Input Voltage Range: Operates efficiently from 4.0V to 18V, making it versatile for various applications.
2. Output Current: Provides up to 1.5A of continuous output current, suitable for powering a wide range of devices.
3. Efficiency: High efficiency, up to 93%, which helps in minimizing heat generation and power loss.
4. Switching Frequency: Fixed frequency operation at 850 kHz, contributing to reduced component size and cost.
5. Output Voltage: Adjustable output voltage down to 0.8V, allowing flexibility in use for different applications.
6. Protection Features: Includes overcurrent protection, thermal shutdown, and soft-start functionality to enhance reliability and safety.
7. Package: Available in compact SO-8 package, which is beneficial for space-constrained designs.
8. Topology: Utilizes a current mode PWM control, improving performance and transient response.
These features make the ST1S40IDR suitable for applications in consumer electronics, industrial systems, and other areas requiring efficient voltage regulation.
Pinout
The ST1S40IDR is a step-down switching regulator from STMicroelectronics, housed in a small DFN8 package. It features a total of 8 pins. The primary function of the ST1S40IDR is to convert a higher input voltage to a lower output voltage with high efficiency, suitable for use in applications requiring compact and efficient DC-DC conversion.
The key pin functions include:
1. VIN: Power input voltage.
2. SW: Switch output, where the inductor is connected.
3. GND: Ground reference for the device.
4. FB: Feedback input for setting the output voltage.
5. EN: Enable input for turning the device on or off.
6. COMP: Compensation pin for loop stability.
7. SS: Soft-start pin for controlling startup.
8. PG: Power-good output indicating the status of the output voltage.
This regulator is known for its compact size, making it ideal for space-constrained applications, while offering features like internal compensation, soft-start, and power-good indication.
The key pin functions include:
1. VIN: Power input voltage.
2. SW: Switch output, where the inductor is connected.
3. GND: Ground reference for the device.
4. FB: Feedback input for setting the output voltage.
5. EN: Enable input for turning the device on or off.
6. COMP: Compensation pin for loop stability.
7. SS: Soft-start pin for controlling startup.
8. PG: Power-good output indicating the status of the output voltage.
This regulator is known for its compact size, making it ideal for space-constrained applications, while offering features like internal compensation, soft-start, and power-good indication.
Manufacturer
The ST1S40IDR is manufactured by STMicroelectronics. STMicroelectronics, commonly referred to as ST, is a global semiconductor company that designs, develops, manufactures, and markets a wide range of semiconductor products and solutions. The company provides components for microelectronics-related applications, including those in the automotive, industrial, personal electronics, communication equipment, and computer peripherals sectors. STMicroelectronics is known for its innovation and expertise in developing integrated circuits and discrete devices, serving a diverse range of industries with its products.
Application
The ST1S40IDR is a step-down switching regulator, ideal for applications requiring efficient DC-DC conversion. Its application areas include:
1. Consumer Electronics: Powering portable devices like smartphones and tablets.
2. Industrial Automation: Providing stable power to sensors and control systems.
3. Telecommunications: Used in networking equipment for efficient power management.
4. Automotive Systems: Powers various electronic components, ensuring efficiency and reliability.
5. Embedded Systems: Supplies power to microcontrollers and other embedded applications.
6. Computing: Part of voltage regulation modules in PCs and servers.
These applications benefit from the regulator's high efficiency, compact size, and ability to maintain stable output under varying load conditions.
1. Consumer Electronics: Powering portable devices like smartphones and tablets.
2. Industrial Automation: Providing stable power to sensors and control systems.
3. Telecommunications: Used in networking equipment for efficient power management.
4. Automotive Systems: Powers various electronic components, ensuring efficiency and reliability.
5. Embedded Systems: Supplies power to microcontrollers and other embedded applications.
6. Computing: Part of voltage regulation modules in PCs and servers.
These applications benefit from the regulator's high efficiency, compact size, and ability to maintain stable output under varying load conditions.
Package
The ST1S40IDR is a step-down switching regulator manufactured by STMicroelectronics. It comes in a standard SO-8 (Small Outline) package, which is a surface-mount package type, providing a compact and efficient solution for power management applications.
