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TPS54140DGQR
+Lista de MateriaisIC REG BUCK ADJ 1.5A 10MSOP
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FabricanteTexas Instruments
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Peça do Fabricante #TPS54140DGQR
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Pacote HVSSOP-10
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Em Estoque6430
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Especificações
| Atributo | Valor |
| Package | Tape & Reel (TR),Cut Tape (CT),Bulk |
| Series | Eco-Mode™ |
| ProductStatus | Active |
| Function | Step-Down |
| OutputConfiguration | Positive |
| Topology | Buck |
| OutputType | Adjustable |
| NumberofOutputs | 1 |
| Voltage-Input(Min) | 3.5V |
| Voltage-Input(Max) | 42V |
| Voltage-Output(Min/Fixed) | 0.8V |
| Voltage-Output(Max) | 39V |
| Current-Output | 1.5A |
| Frequency-Switching | 100kHz ~ 2.5MHz |
| SynchronousRectifier | No |
| OperatingTemperature | -40°C ~ 150°C (TJ) |
| MountingType | Surface Mount |
| Package/Case | 10-PowerTFSOP, 10-MSOP (0.118, 3.00mm Width) |
Visão Geral
Description
Key features include a fixed 570 kHz switching frequency, low dropout operation, and internal compensation, which simplifies design and enhances performance. It also supports a range of current-limiting and thermal protection features to ensure reliability and robust operation. The TPS54140DGQR comes in a 10-pin MSOP-PowerPAD package, which assists with thermal management. Applications typically include consumer electronics, telecom, and industrial instrumentation, where efficient power conversion and compact design are crucial. Its ability to maintain regulation over a wide input voltage span makes it versatile for use in battery-powered and distributed power systems.
Equivalent
1. LM2675-5.0 by Texas Instruments
2. LM2575T-5.0 by ON Semiconductor
3. MC34063 by ON Semiconductor
4. LT1933 by Analog Devices
5. AP1501 by Diodes Incorporated
These alternatives may vary slightly in specifications, so it's important to verify their suitability for your specific application.
Features
1. Input Voltage Range: Operates from 3.5V to 42V, making it suitable for a wide range of applications.
2. Output Current: Provides up to 0.5A of continuous output current.
3. Switching Frequency: Adjustable frequency from 100kHz to 2.5MHz, allowing for efficiency optimization and size reduction of external components.
4. Efficiency: High efficiency over a wide load range, with a peak efficiency exceeding 90%.
5. Thermal Shutdown and UVLO: Includes protection features such as thermal shutdown and undervoltage lockout (UVLO) to prevent damage under fault conditions.
6. Soft Start: Internal soft-start to minimize inrush current during power-up.
7. Compact Package: Available in a 10-pin MSOP PowerPAD package for enhanced thermal performance.
8. Current Mode Control: Ensures simple loop compensation and fast transient response.
9. Protection Features: Includes cycle-by-cycle current limit protection for robustness against overload conditions.
These features make the TPS54140DGQR ideal for applications requiring efficient, compact, and reliable power conversion.
Pinout
Key pin functions include:
1. VIN: Input voltage supply.
2. EN: Enable pin to turn the device on or off.
3. SS/TR: Soft-start or tracking pin.
4. RT/CLK: Resistor timing or clock input for frequency setting.
5. BOOT: Bootstrap capacitor connection.
6. PH: Phase node, connected to the output inductor.
7. GND: Ground connection.
8. VSENSE: Feedback voltage input to set the output voltage.
9. COMP: Compensation network connection for stability.
10. PWRGD: Power good indication output.
These pin functions facilitate the implementation of the TPS54140DGQR in various power supply designs, providing essential regulation and protection features.
Manufacturer
Application
1. Automotive Systems: It supports a wide input voltage range, ideal for automotive power supplies.
2. Industrial Equipment: Used in power management for industrial control systems.
3. Consumer Electronics: Powers devices like set-top boxes and LED lighting systems.
4. Telecommunications: Supports power regulation in networking equipment.
5. Computing: Provides efficient power conversion for computer peripherals.
These applications benefit from the device's small size, thermal performance, and ability to deliver up to 1.5A output current.