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TPS5403DR
+NomenclatureIC REG BUCK 3.3V 1.7A 8SOIC
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FabricantTexas Instruments
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Pièce fabricant #TPS5403DR
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Package SOIC (D)-8
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En stock7535
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Spécifications
| Attribut | Valeur |
| Package | Tape & Reel (TR),Cut Tape (CT) |
| ProductStatus | Active |
| Function | Step-Down |
| OutputConfiguration | Positive |
| Topology | Buck |
| OutputType | Fixed |
| NumberofOutputs | 1 |
| Voltage-Input(Min) | 4.5V |
| Voltage-Input(Max) | 28V |
| Voltage-Output(Min/Fixed) | 3.3V |
| Current-Output | 1.7A |
| Frequency-Switching | 50kHz ~ 1.1MHz |
| SynchronousRectifier | No |
| OperatingTemperature | -40°C ~ 85°C (TA) |
| MountingType | Surface Mount |
| Package/Case | 8-SOIC (0.154, 3.90mm Width) |
Présentation
Description
Key features include a high-efficiency design, typically over 90%, thanks to its 500 kHz fixed switching frequency and advanced MOSFET technology. The TPS5403DR also incorporates a range of protection features, such as overcurrent protection, thermal shutdown, and undervoltage lockout, enhancing reliability and safety.
The device comes in an 8-pin SOIC package, making it easy to incorporate into circuit designs. It is widely used in consumer electronics, industrial automation, and communication equipment due to its compact size, reliability, and efficiency. Its design simplicity and robust performance make it a popular choice for designers seeking a versatile step-down regulator.
Equivalent
Features
1. Wide Input Voltage Range: Supports 5.5 V to 28 V, making it versatile for various power supply sources.
2. Output Voltage: Adjustable down to 0.8 V, useful for diverse applications requiring different voltage levels.
3. Output Current: Capable of delivering up to 3 A, suitable for powering moderate loads.
4. Efficiency: High efficiency up to 95% helps reduce power loss and heat generation.
5. Switching Frequency: Fixed 340 kHz frequency allows for smaller external components and faster transient response.
6. Protection Features: Includes overcurrent protection, thermal shutdown, and undervoltage lockout to enhance reliability.
7. Compensation: Internal loop compensation simplifies design and reduces external component count.
8. Packaging: Available in an 8-pin SOIC package, facilitating easy integration into existing designs.
These features make the TPS5403DR ideal for applications such as distributed power systems, battery-powered devices, and point-of-load converters.
Pinout
1. BOOT: Bootstrap capacitor connection for high-side FET drive.
2. VIN: Input voltage supply pin for the power converter.
3. EN: Enable pin for turning the device on or off.
4. SS/TR: Soft-start and tracking pin to control the ramp-up time of the output voltage.
5. GND: Ground pin.
6. FB: Feedback pin for setting the output voltage via an external resistor divider.
7. COMP: Compensation pin for external compensation network to stabilize the loop.
8. SW: Switch node output, connected to the inductor and provides the PWM switching.
This configuration allows the TPS5403DR to efficiently convert higher input voltages to lower output voltages, making it suitable for a wide range of applications.
Manufacturer
Application
1. Industrial Power Systems: It provides regulated power in industrial automation and control systems.
2. Consumer Electronics: Powers devices like set-top boxes and home appliances.
3. Telecommunications: Used in networking equipment and base stations for voltage regulation.
4. Automotive: Suitable for infotainment systems and other automotive electronics.
5. Computing: Powers peripherals and auxiliary circuits in computers and servers.
6. Portable Devices: Used in battery-powered gadgets for efficient power conversion.
Its wide input voltage range and high efficiency make it versatile for various applications needing stable power.