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TPS54040ADGQR
+StücklisteIC REG BUCK ADJ 500MA 10MSOP
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HerstellerTexas Instruments
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Herstellerteil #TPS54040ADGQR
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Paket MSOP-10
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Auf Lager1283
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Spezifikationen
| Attribut | Wert |
| Package / Case | Tape & Reel (TR),Cut Tape (CT),Bulk |
| Series | Eco-Mode™ |
| Part Status | Active |
| Function | Step-Down |
| Output Configuration | Positive |
| Topology | Buck |
| Output Type | Adjustable |
| Number of Outputs | 1 |
| Voltage - Input (Min) | 3.5V |
| Voltage - Input (Max) | 42V |
| Voltage - Output (Min/Fixed) | 0.8V |
| Voltage - Output (Max) | 39V |
| Current - Output | 500mA |
| Frequency - Switching | 100kHz ~ 2.5MHz |
| Synchronous Rectifier | No |
| Operating Temperature | -40°C ~ 150°C (TJ) |
| Mounting Type | Surface Mount |
Übersicht
Description
Key features include a high efficiency, typically achieved through pulse width modulation (PWM) with a fixed frequency operation. It also includes features like an adjustable switching frequency, an external compensation for loop optimization, and a soft-start to limit inrush current during power-up. The IC comes in a compact package size, minimizing board space, and offers thermal shutdown protection to enhance reliability.
The TPS54040ADGQR is widely used in various applications such as consumer electronics, industrial equipment, and distributed power systems, where efficient power conversion and compact size are crucial.
Equivalent
1. LM2594N-5.0 from Texas Instruments
2. LM2675M-5.0 from Texas Instruments
3. LMR14030SDDAR from Texas Instruments
4. MP1584EN from Monolithic Power Systems
5. AP1509-50K5L-13 from Diodes Incorporated
These alternatives vary in efficiency, current capacity, and additional features, so it's important to compare specifications to ensure compatibility with specific applications.
Features
The device incorporates a high-efficiency pulse-width modulation (PWM) controller with a low RDS(on) internal switch, contributing to its high efficiency. It offers adjustable output voltage via an external resistor divider and features an enable input for easy on/off control. Additional features include an adjustable soft-start function to limit inrush current, current-mode control for stable operation, and integrated frequency compensation.
Protection features include cycle-by-cycle current limit, thermal shutdown, and undervoltage lockout. The device is housed in a small, 10-pin VSON package, making it suitable for compact designs.
Pinout
1. BOOT: Supplies the drive voltage to the high-side MOSFET.
2. VIN: Input supply voltage pin.
3. EN: Enable pin for the device; a high level turns the device on.
4. SS/TR: Soft-start and tracking pin to control the startup time.
5. VSENSE: Feedback voltage for output voltage regulation.
6. COMP: Compensation pin for external compensation network.
7. GND: Ground pin.
8. PH: Switch node (output) that connects to the inductor.
The TPS54040ADGQR is typically used for efficient voltage regulation in applications requiring a small footprint and high efficiency, such as in power supplies for digital signal processors (DSPs), microcontrollers, and other point-of-load applications.
Manufacturer
Application
1. Industrial and Consumer Electronics: Used in devices that require stable voltage levels.
2. Automotive Systems: Powers infotainment systems, sensors, and other automotive electronics.
3. Communications Equipment: Provides reliable power for networking devices and telecom infrastructure.
4. Portable Electronics: Used in battery-powered devices for efficient power utilization.
5. Embedded Systems: Supplies power to microcontrollers and digital circuits in various embedded applications.
Its features, such as wide input voltage range and high efficiency, make it suitable for these diverse applications.