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TPS54386PWPR
+BOMIC REG BUCK ADJ 3A DL 14HTSSOP
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Nhà sản xuấtTexas Dụng cụ
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Ông. Phần #TPS54386PWPR
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Gói HTSSOP (PWP)-14
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Có sẵn7096
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Thông số kỹ thuật
| thuộc tính | Giá trị |
| Package | Tape & Reel (TR),Cut Tape (CT),Bulk |
| ProductStatus | Active |
| Function | Step-Down |
| OutputConfiguration | Positive |
| Topology | Buck |
| OutputType | Adjustable |
| NumberofOutputs | 2 |
| Voltage-Input(Min) | 4.5V |
| Voltage-Input(Max) | 28V |
| Voltage-Output(Min/Fixed) | 0.8V |
| Voltage-Output(Max) | 25.2V |
| Current-Output | 3A |
| Frequency-Switching | 630kHz |
| SynchronousRectifier | No |
| OperatingTemperature | -40°C ~ 125°C (TJ) |
| MountingType | Surface Mount |
| Package/Case | 14-TSSOP (0.173, 4.40mm Width) Exposed Pad |
Tổng quan
Description
Key features include a fixed switching frequency of 300 kHz, which helps in optimizing efficiency and component size. It also includes soft-start functionality, overcurrent protection, and thermal shutdown to enhance reliability and protect against fault conditions. The device comes in a 20-pin TSSOP package with PowerPAD™, enabling effective thermal management.
The TPS54386PWPR is often used in applications such as distributed power systems, notebooks, and other electronic devices requiring regulated step-down voltages. Its combination of power efficiency, protective features, and compact size makes it a robust choice for designers looking to implement dual-output power solutions.
Equivalent
1. LM26420 from Texas Instruments - Dual DC-DC buck converter.
2. LT3509 from Analog Devices - Dual-output buck converter.
3. MIC23350 from Microchip Technology - Dual buck regulator.
4. MAX15118 from Maxim Integrated - Dual synchronous buck controller.
Always verify specific electrical characteristics and pin compatibility for exact replacements.
Features
1. Wide Input Voltage Range: Operates from 4.5V to 28V, accommodating various power sources.
2. Dual Independent Outputs: Provides two adjustable outputs, each capable of delivering up to 3A of continuous current.
3. Adjustable Switching Frequency: Supports switching frequencies from 250 kHz to 1.6 MHz, allowing for flexibility in design and optimization of efficiency and component size.
4. High Efficiency: Designed for high power conversion efficiency to minimize heat dissipation and improve battery life in portable applications.
5. Soft Start Capability: Adjustable soft-start function to control inrush current and ensure smooth power-up.
6. Overcurrent Protection: Features cycle-by-cycle current limiting to protect the device from excessive load conditions.
7. Thermal Shutdown: Includes thermal protection that shuts down the device to prevent damage from overheating.
8. Compact Package: Comes in a thermally efficient 20-pin TSSOP (PW) package with PowerPAD for enhanced heat dissipation.
These features make the TPS54386PWPR suitable for applications in consumer electronics, industrial systems, and telecommunications equipment.
Pinout
Key features include:
- Wide input voltage range: typically 4.5 V to 28 V.
- Two independent output channels with separate enable pins.
- Adjustable output voltage.
- Fixed 300 kHz switching frequency.
- Built-in protection features such as overcurrent protection and thermal shutdown.
The package's PowerPAD enhances thermal performance, making it suitable for applications with higher power requirements. Applications typically include power supply solutions for DSPs, FPGAs, and other digital processors. The TSSOP-20 package helps in efficient layout and heat dissipation, which is crucial for maintaining device performance and reliability.