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) | 32V |
| Voltage-Output(Min/Fixed) | 0.5V |
| Voltage-Output(Max) | 30V |
| Current-Output | 6A |
| Frequency-Switching | 490kHz |
| SynchronousRectifier | Yes |
| OperatingTemperature | -40°C ~ 125°C (TJ) |
| MountingType | Surface Mount |
| Package/Case | 13-PowerVFQFN |
Tổng quan
Description
The MP2491CGQB-Z is a power management integrated circuit (PMIC) designed for efficient energy conversion and regulation in electronic devices. It typically serves as a step-down (buck) converter, transforming higher voltage inputs into a stable, lower voltage output suitable for powering various components in a system. This IC is favored for its high efficiency, compact size, and reliability in managing power in applications such as consumer electronics, industrial equipment, and computing devices.
Key features of the MP2491CGQB-Z include a wide input voltage range, typically supporting up to 36V, and a programmable output voltage, offering flexibility for different application needs. It also boasts a high switching frequency, which allows for smaller external components and overall space savings on circuit boards. Protection features, such as overcurrent and thermal shutdown, enhance device safety and longevity. The MP2491CGQB-Z is preferred for applications requiring robust performance in a small footprint, ensuring stable power delivery with minimal energy loss.
Key features of the MP2491CGQB-Z include a wide input voltage range, typically supporting up to 36V, and a programmable output voltage, offering flexibility for different application needs. It also boasts a high switching frequency, which allows for smaller external components and overall space savings on circuit boards. Protection features, such as overcurrent and thermal shutdown, enhance device safety and longevity. The MP2491CGQB-Z is preferred for applications requiring robust performance in a small footprint, ensuring stable power delivery with minimal energy loss.
Equivalent
The MP2491CGQB-Z is a DC-DC buck converter. Equivalent products would include the Texas Instruments LM2675, the Linear Technology (Analog Devices) LT1767, and the ON Semiconductor NCP3063. Each of these offers similar functionality with varying specifications and features, so it is essential to compare their datasheets to ensure compatibility with your specific application requirements.
Features
The MP2491CGQB-Z is a monolithic step-down switch-mode converter designed by Monolithic Power Systems. It features a 36V input voltage range and can provide up to 2A output current. The device operates with a 340kHz fixed switching frequency, which helps reduce external component size and optimize efficiency. It also includes an integrated high-side power MOSFET to simplify the design and lower the total cost.
The MP2491CGQB-Z offers several protection features such as cycle-by-cycle current limiting, thermal shutdown, and output short-circuit protection to ensure reliable operation under various conditions. It also includes a soft-start feature to minimize inrush current during startup.
The device is designed for high-efficiency power conversion, making it suitable for various applications like battery-powered devices, automotive systems, and distributed power systems. The MP2491CGQB-Z comes in a compact QFN package, facilitating easy integration into tight PCB spaces.
The MP2491CGQB-Z offers several protection features such as cycle-by-cycle current limiting, thermal shutdown, and output short-circuit protection to ensure reliable operation under various conditions. It also includes a soft-start feature to minimize inrush current during startup.
The device is designed for high-efficiency power conversion, making it suitable for various applications like battery-powered devices, automotive systems, and distributed power systems. The MP2491CGQB-Z comes in a compact QFN package, facilitating easy integration into tight PCB spaces.
Pinout
The MP2491CGQB-Z is a synchronous step-down converter IC. It typically comes in a QFN package with 20 pins. The key functions of the MP2491 include:
1. VIN: Input voltage supply.
2. SW: Switching node, connected to the inductor.
3. GND: Ground reference.
4. BS: Bootstrap pin for high-side gate drive.
5. EN: Enable pin to turn the device on/off.
6. FB: Feedback pin for output voltage regulation.
7. COMP: Compensation pin for stabilizing the control loop.
8. SS: Soft-start control pin to limit inrush current.
9. SYNC: Synchronization input for external clock.
10. PGND: Power ground for the power stage.
11. PG: Power good indicator.
12. VCC: Internal regulator output.
13. MODE: Operation mode selection (e.g., forced PWM, PFM).
14. AGND: Analog ground for internal circuitry.
This IC is designed for step-down applications where high efficiency and compact size are critical, commonly used in computing and consumer electronics. For precise pin configuration and additional details, refer to the specific datasheet provided by the manufacturer, Monolithic Power Systems (MPS).
1. VIN: Input voltage supply.
2. SW: Switching node, connected to the inductor.
3. GND: Ground reference.
4. BS: Bootstrap pin for high-side gate drive.
5. EN: Enable pin to turn the device on/off.
6. FB: Feedback pin for output voltage regulation.
7. COMP: Compensation pin for stabilizing the control loop.
8. SS: Soft-start control pin to limit inrush current.
9. SYNC: Synchronization input for external clock.
10. PGND: Power ground for the power stage.
11. PG: Power good indicator.
12. VCC: Internal regulator output.
13. MODE: Operation mode selection (e.g., forced PWM, PFM).
14. AGND: Analog ground for internal circuitry.
This IC is designed for step-down applications where high efficiency and compact size are critical, commonly used in computing and consumer electronics. For precise pin configuration and additional details, refer to the specific datasheet provided by the manufacturer, Monolithic Power Systems (MPS).
Manufacturer
The MP2491CGQB-Z is manufactured by Monolithic Power Systems (MPS). MPS is a semiconductor company that specializes in designing and providing high-performance power solutions. Their products often focus on markets such as industrial, automotive, computing, and telecommunications, among others. MPS is known for creating energy-efficient, compact, and reliable analog and mixed-signal semiconductors, which are used in a wide range of electronic applications.
Application
The MP2491CGQB-Z is a DC-DC step-down converter designed for efficient power management. Its application areas include consumer electronics, industrial equipment, telecommunications, and automotive systems. It is ideal for devices requiring stable voltage regulation from battery or power supply inputs, such as portable gadgets, embedded systems, and communication devices. The converter's high efficiency and compact design make it suitable for space-constrained applications. Additionally, it is used in systems requiring low power consumption and precise voltage control, enhancing battery life and overall device performance.
Package
The MP2491CGQB-Z is typically available in a QFN (Quad Flat No-leads) package type.
