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TPS40009DGQR
+Lista de MateriaisIC REG CTRLR BUCK 10MSOP
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FabricanteTexas Instruments
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Peça do Fabricante #TPS40009DGQR
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Pacote HVSSOP-10
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Em Estoque7561
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Especificações
| Atributo | Valor |
| Package / Case | Tape & Reel (TR),Cut Tape (CT) |
| Part Status | Active |
| Output Type | Transistor Driver |
| Function | Step-Down |
| Output Configuration | Positive |
| Topology | Buck |
| Number of Outputs | 1 |
| Output Phases | 1 |
| Voltage - Supply (Vcc/Vdd) | 2.25V ~ 5.5V |
| Frequency - Switching | 600kHz |
| Duty Cycle(Max) | 93% |
| Synchronous Rectifier | Yes |
| Clock Sync | No |
| Control Features | Current Limit, Enable, Soft Start |
| Operating Temperature | -40°C ~ 85°C (TA) |
| Mounting Type | Surface Mount |
Visão Geral
Description
This controller operates with an external N-channel MOSFET, allowing for efficient power conversion and high current capabilities. It includes features like programmable operating frequency, undervoltage lockout, and soft-start functionality to ensure reliable startup and operation. Additionally, the TPS40009DGQR is equipped with protections such as overcurrent protection and thermal shutdown, enhancing the overall safety and reliability of the power management system.
The device comes in a TSSOP package, making it suitable for compact and space-constrained designs. Overall, the TPS40009DGQR is a versatile and robust solution for designing efficient power supply systems in various electronic applications.
Equivalent
1. LTC3851 from Analog Devices.
2. LM5116 from Texas Instruments.
3. ISL8117 from Renesas Electronics.
4. MAX15024 from Maxim Integrated.
These alternatives offer similar functionality for synchronous step-down applications. Always check specific requirements and datasheets for compatibility before replacing.
Features
Key features include a programmable undervoltage lockout (UVLO) for input voltage monitoring, adjustable soft-start to control inrush current, and slope compensation to prevent subharmonic oscillations. The TPS40009DGQR provides overcurrent protection using a cycle-by-cycle current limit technique. It also incorporates thermal shutdown to protect against excessive temperature conditions.
Additional features are the ability to synchronize to an external clock for improved noise immunity and a PGOOD signal to indicate when the output is within regulation. The device is offered in a thermally enhanced 16-pin TSSOP package, making it suitable for compact designs.
Pinout
Key functions of the TPS40009 include:
1. Synchronous Rectification: Improves efficiency by minimizing conduction losses.
2. Voltage Mode Control: Utilizes a voltage mode control architecture to regulate the output voltage.
3. Adjustable Frequency: Allows the switching frequency to be set between 200 kHz to 700 kHz, providing flexibility in design.
4. Soft Start: Includes a soft start feature that reduces inrush current during start-up.
5. Overcurrent Protection: Protects the device from excessive current, ensuring reliable operation.
6. Power Good Indicator: Provides a signal when the output is within a specified range.
The TPS40009 is suitable for a variety of applications, including distributed power systems, point-of-load converters, and other power management solutions requiring efficient voltage regulation.
Manufacturer
Application
1. Telecommunications Equipment: Provides efficient power conversion for networking and communication devices.
2. Industrial Power Supplies: Utilized in systems requiring precise voltage regulation and high efficiency.
3. Computing Systems: Supports power management in servers, workstations, and personal computers.
4. Consumer Electronics: Powers various electronic devices by converting and regulating voltage.
5. Automotive Systems: Used in automotive power systems for stable and reliable voltage supply.
The TPS40009DGQR is valued for its synchronous buck controller capabilities, offering high efficiency and flexibility in design.