Overview
The TPS54383PWPR from Texas Instruments is a versatile dual-output step-down converter designed to meet the demands of various electronic devices. This converter features a wide input voltage range of 4.5V to 28V and provides dual 3A outputs, making it suitable for powering a range of applications. The non-synchronous buck converter topology ensures efficient power conversion, and the device operates at a switching frequency of 300kHz, which allows for compact external components and low power dissipation. The 14-pin HTSSOP package contributes to its compact design, making it ideal for space-constrained applications.
Key Specifications
| Parameter | Min | Max | Unit | |
|---|---|---|---|---|
| Input Voltage Range | 4.5 | 28 | V | |
| Output Voltage Range | 0.8 | 90% of Input Voltage | V | |
| Output Current | 3 | A | ||
| Switching Frequency | 255 | 300 | 375 | kHz |
| Operating Temperature | -40 | 125 | °C | |
| Package Type | HTSSOP-14 | |||
| Internal High-Side MOSFET Resistance | 85 | 165 | mΩ | |
| Thermal Shutdown Temperature | 148 | °C |
Key Features
- Non-Synchronous Buck Converter Topology: Ensures efficient power conversion.
- Dual 3A Outputs: Supports applications requiring multiple output currents.
- Wide Input Voltage Range: 4.5V to 28V, suitable for various applications including automotive, industrial, and telecom.
- Adjustable Output Voltage: Output voltages between 0.8V and 90% of the input voltage.
- 300kHz Switching Frequency: Allows for compact external components and low power dissipation.
- Overcurrent Protection: Three selectable levels of overcurrent protection for each output.
- Thermal Shutdown Protection: At +148°C to ensure safe operation.
- Power-Good Output: Provides a signal to indicate safe operating conditions.
- Ratiometric or Sequential Startup Modes: Selectable by a single pin.
- Internal Compensation and Soft-Start: Minimizes the need for external components and ensures smooth startup.
Applications
- Set Top Box and Digital TV: Ideal for powering various components in consumer electronics.
- Power for DSP and Consumer Electronics: Suitable for powering digital signal processors and other consumer electronic devices.
- Automotive and Industrial Applications: Handles voltage fluctuations common in these environments.
- Telecom Applications: Reliable power supply for telecommunications equipment.
Q & A
- What is the input voltage range of the TPS54383PWPR?
The input voltage range is 4.5V to 28V.
- What is the maximum output current per channel?
The maximum output current per channel is 3A.
- What is the switching frequency of the TPS54383PWPR?
The switching frequency is 300kHz.
- What type of package does the TPS54383PWPR come in?
The device comes in a 14-pin HTSSOP package.
- Does the TPS54383PWPR have overcurrent protection?
Yes, it has three selectable levels of overcurrent protection for each output.
- What is the thermal shutdown temperature of the TPS54383PWPR?
The thermal shutdown temperature is +148°C.
- Can the outputs be enabled independently?
Yes, the outputs may be enabled independently or configured for ratiometric or sequential startup.
- Does the TPS54383PWPR have a power-good output signal?
Yes, it provides a power-good output signal to indicate safe operating conditions.
- What is the operating temperature range of the TPS54383PWPR?
The operating temperature range is -40°C to +125°C.
- Is internal compensation provided for the feedback loop?
Yes, internal compensation for the feedback loop is provided.
