規格
| 屬性 | 價值 |
| Package / Case | Tape & Reel (TR),Cut Tape (CT) |
| Part Status | Not For New Designs |
| Function | Step-Down |
| Output Configuration | Positive |
| Topology | Buck |
| Output Type | Adjustable |
| Number of Outputs | 1 |
| Voltage - Input (Min) | 4.5V |
| Voltage - Input (Max) | 16V |
| Voltage - Output (Min/Fixed) | 0.8V |
| Voltage - Output (Max) | 15.2V |
| Current - Output | 3A |
| Frequency - Switching | 500kHz |
| Synchronous Rectifier | Yes |
| Operating Temperature | -40°C ~ 125°C (TJ) |
| Mounting Type | Surface Mount |
概述
Description
The MP1475DJ-LF-Z is a monolithic step-down switch mode converter from Monolithic Power Systems (MPS) designed to handle a 5A load with high efficiency and low heat dissipation. It operates with a wide input voltage range, typically from 4.5V to 18V, making it suitable for various applications, including consumer electronics, automotive systems, and industrial equipment. The converter features a fixed output voltage or adjustable output via an external resistor divider, offering flexibility in design. It employs a 340kHz fixed switching frequency, allowing for smaller passive components and reduced overall PCB space.
The MP1475DJ-LF-Z includes built-in protection features such as over-current protection (OCP), over-voltage protection (OVP), and thermal shutdown, enhancing the reliability of the device in challenging operating conditions. The product is housed in a compact, thermally enhanced package, facilitating efficient heat management and easy integration into circuit designs. With its high efficiency and compact form factor, the MP1475DJ-LF-Z is ideal for power-sensitive applications requiring robust performance and reliability.
The MP1475DJ-LF-Z includes built-in protection features such as over-current protection (OCP), over-voltage protection (OVP), and thermal shutdown, enhancing the reliability of the device in challenging operating conditions. The product is housed in a compact, thermally enhanced package, facilitating efficient heat management and easy integration into circuit designs. With its high efficiency and compact form factor, the MP1475DJ-LF-Z is ideal for power-sensitive applications requiring robust performance and reliability.
Equivalent
The MP1475DJ-LF-Z is a switching regulator from Monolithic Power Systems. Equivalent products typically include similar DC-DC buck converters with comparable specifications. Possible alternatives are:
1. Texas Instruments TPS54331 – 3A, 28V Input Step-Down Converter.
2. Analog Devices (formerly Linear Technology) LT8609 – 42V, 2A Synchronous Step-Down Regulator.
3. Diodes Incorporated AP65211 – 2A, 36V Synchronous Buck Converter.
Ensure compatibility by comparing the input voltage range, output current, efficiency, and package type.
1. Texas Instruments TPS54331 – 3A, 28V Input Step-Down Converter.
2. Analog Devices (formerly Linear Technology) LT8609 – 42V, 2A Synchronous Step-Down Regulator.
3. Diodes Incorporated AP65211 – 2A, 36V Synchronous Buck Converter.
Ensure compatibility by comparing the input voltage range, output current, efficiency, and package type.
Features
The MP1475DJ-LF-Z is a high-efficiency, step-down, synchronous buck converter designed for compact and efficient power conversions. It features an input voltage range from 4.7V to 18V, making it suitable for various applications, including consumer electronics and industrial devices. The device can deliver up to 5A of continuous output current, with an adjustable output voltage range from 0.8V to 15V.
Key features include a 500kHz switching frequency, which allows for smaller external components and a more compact overall design. The MP1475DJ-LF-Z employs a constant-on-time (COT) control mode for fast transient response and stable operation. It also offers high efficiency, typically over 90%, by using synchronous rectification with integrated high-side and low-side MOSFETs.
Additional features include internal soft start, cycle-by-cycle current limiting, short-circuit protection, and thermal shutdown for robust and reliable performance. The device comes in a compact, thermally enhanced TSOT23-8 package, making it an ideal choice for space-constrained applications.
Key features include a 500kHz switching frequency, which allows for smaller external components and a more compact overall design. The MP1475DJ-LF-Z employs a constant-on-time (COT) control mode for fast transient response and stable operation. It also offers high efficiency, typically over 90%, by using synchronous rectification with integrated high-side and low-side MOSFETs.
Additional features include internal soft start, cycle-by-cycle current limiting, short-circuit protection, and thermal shutdown for robust and reliable performance. The device comes in a compact, thermally enhanced TSOT23-8 package, making it an ideal choice for space-constrained applications.
Pinout
The MP1475DJ-LF-Z is a DC-DC step-down converter. It typically comes in a 6-pin TSOT23-6 package. Here is a brief overview of the pin functions:
1. VIN: Input voltage supply. It receives the input voltage ranging from 4.5V to 18V.
2. GND: Ground. This is the power ground pin.
3. SW: Switch output. Connects to the inductor and is the switching node.
4. FB: Feedback. This pin is connected to the output voltage divider to set the output voltage.
5. EN: Enable. A high level on this pin enables the device, whereas a low level disables it.
6. BST: Bootstrap. This pin is used for the bootstrap capacitor necessary for driving the internal high-side MOSFET.
The MP1475 is designed for efficient step-down (buck) conversion and is commonly used in applications requiring a regulated output voltage from a higher input voltage source.
1. VIN: Input voltage supply. It receives the input voltage ranging from 4.5V to 18V.
2. GND: Ground. This is the power ground pin.
3. SW: Switch output. Connects to the inductor and is the switching node.
4. FB: Feedback. This pin is connected to the output voltage divider to set the output voltage.
5. EN: Enable. A high level on this pin enables the device, whereas a low level disables it.
6. BST: Bootstrap. This pin is used for the bootstrap capacitor necessary for driving the internal high-side MOSFET.
The MP1475 is designed for efficient step-down (buck) conversion and is commonly used in applications requiring a regulated output voltage from a higher input voltage source.
Manufacturer
The MP1475DJ-LF-Z is manufactured by Monolithic Power Systems (MPS). MPS is a company that specializes in the design, development, and manufacturing of high-performance analog and mixed-signal semiconductors. These components are used across a variety of applications, including industrial, consumer electronics, automotive, and communications markets. MPS is known for its focus on highly integrated solutions that offer efficiency and performance advantages in power management.
Application
The MP1475DJ-LF-Z is a step-down (buck) converter designed for efficient power management. It is commonly used in applications requiring a compact solution for converting higher voltage to lower voltage in a stable manner. Key application areas include:
1. Consumer electronics: powering components in smartphones, tablets, and laptops.
2. Industrial equipment: used in various control systems and automation equipment.
3. Networking devices: provides stable power to routers, switches, and other communication products.
4. Automotive electronics: utilized in infotainment systems and other in-car electronics.
5. Telecommunications: powers base stations and other telecom infrastructure efficiently.
Its compact design and high efficiency make it suitable for space-constrained and portable applications.
1. Consumer electronics: powering components in smartphones, tablets, and laptops.
2. Industrial equipment: used in various control systems and automation equipment.
3. Networking devices: provides stable power to routers, switches, and other communication products.
4. Automotive electronics: utilized in infotainment systems and other in-car electronics.
5. Telecommunications: powers base stations and other telecom infrastructure efficiently.
Its compact design and high efficiency make it suitable for space-constrained and portable applications.
Package
The MP1475DJ-LF-Z is typically offered in a TSOT23-8 package type. This package is a small outline transistor type with 8 leads, often used for compact applications requiring efficient power management.
