Hình ảnh chỉ để tham khảo
LM5575MH
+BOMIC REG BUCK ADJ 1.5A 16HTSSOP
-
Nhà sản xuấtTexas Dụng cụ
-
Ông. Phần #LM5575MH
-
Bảng dữ liệu LM5575MH DataSheet
-
Gói HTSSOP (PWP)-16
-
Có sẵn2631
365 Đảm bảo chất lượng ngày
7*24 giờ dịch vụ quarantee
90-Bảo hành sau bán hàng ngày
Bảo hành sản phẩm chính xác
Thông số kỹ thuật
| thuộc tính | Giá trị |
| Package | Bulk,Tube |
| Series | SIMPLE SWITCHER® |
| ProductStatus | Not For New Designs |
| Function | Step-Down |
| OutputConfiguration | Positive |
| Topology | Buck |
| OutputType | Adjustable |
| NumberofOutputs | 1 |
| Voltage-Input(Min) | 6V |
| Voltage-Input(Max) | 75V |
| Voltage-Output(Min/Fixed) | 1.225V |
| Voltage-Output(Max) | 70V |
| Current-Output | 1.5A |
| Frequency-Switching | 50kHz ~ 500kHz |
| SynchronousRectifier | No |
| OperatingTemperature | -40°C ~ 125°C (TJ) |
| MountingType | Surface Mount |
| Package/Case | 16-PowerTSSOP (0.173, 4.40mm Width) |
Tổng quan
Description
The LM5575MH features an integrated N-channel MOSFET switch, thermal shutdown, and current limit protection to ensure reliable operation under various conditions. Additionally, it has a programmable soft-start feature to control the inrush current during startup. The device is also designed with a feedback loop that allows precise output voltage regulation, and it supports both continuous and discontinuous conduction modes.
Compactly packaged and equipped with a thermally enhanced TSSOP-16 package, the LM5575MH is ideal for space-constrained applications, providing efficient power conversion with minimal external components.
Equivalent
- LM5575 by Texas Instruments (different package options)
- LM2678 by Texas Instruments
- L4970A by STMicroelectronics
- MC34063 by ON Semiconductor (lower output current)
- LT3971 by Analog Devices (similar voltage range, different specifications)
These alternatives may vary in specifications like current output, voltage range, or package type, so it's important to verify compatibility with your specific application.
Features
1. Wide Input Voltage Range: It operates with input voltages from 6V to 75V, making it suitable for a variety of power sources.
2. Adjustable Output Voltage: The output voltage can be set between 1.225V and 70V, allowing flexibility in different applications.
3. High Efficiency: The regulator is designed to achieve high conversion efficiency, reducing power loss and heat generation.
4. Current Mode Control: It utilizes peak current mode control for fast transient response and ease of loop compensation.
5. Integrated High-Side MOSFET: The device includes a 1.5A N-channel MOSFET, simplifying the design and reducing component count.
6. Switching Frequency: It features an adjustable switching frequency from 50 kHz to 500 kHz.
7. Protection Features: Includes cycle-by-cycle current limit, thermal shutdown, input under-voltage lockout, and output over-voltage protection for reliable operation.
8. Package: Available in a thermally enhanced 20-lead TSSOP package.
These features make the LM5575MH suitable for automotive, industrial, and general-purpose power supply applications.
Pinout
1. SW (Switching Node): Connects to the inductor and is the point where the internal switch and external inductor meet.
2. BST (Bootstrap): Provides a drive voltage higher than the input voltage to the high-side FET.
3. VIN (Input Voltage): The input supply voltage pin.
4. VCC (Output of the Internal Voltage Regulator): Supplies power to internal circuitry.
5. FB (Feedback): Receives the output voltage through a resistive divider for regulation.
6. COMP (Compensation): Allows for the connection of compensation network to stabilize the control loop.
7. RT (Timing Resistor): Sets the switching frequency.
8. SYNC (Synchronization): Allows synchronization to an external clock.
9. SS (Soft-Start/Tracking): Controls the soft-start or tracking functions.
10. EN (Enable): Turns the regulator on or off.
11. PGOOD (Power Good): An open-drain output that signals when the output voltage is within regulation limits.
12. GND (Ground): Ground reference for the circuit.
For complete and specific pin functions, always refer to the manufacturer's datasheet.
Manufacturer
TI focuses on designing and manufacturing analog and embedded processing chips. Its products are essential for engineering applications across various sectors, including automotive, industrial, personal electronics, communications, and enterprise systems. The company is recognized for its innovation, reliability, and vast product portfolio, making it a key player in the global electronics market.
Application
1. Industrial Power Supplies: Used in systems requiring reliable and efficient power conversion for industrial machinery and equipment.
2. Telecommunications: Powers communication infrastructure equipment, ensuring stable voltage supply.
3. Automotive Systems: Suitable for in-vehicle electronic systems where robust voltage regulation is necessary.
4. Consumer Electronics: Provides efficient power management in devices like set-top boxes and home appliances.
5. Distributed Power Systems: Utilized in networked systems to maintain voltage integrity across multiple nodes.
Its high-efficiency, wide input voltage range, and robust thermal performance make it versatile for diverse applications.