Overview
The TPS54313PWPRG4, produced by Texas Instruments, is a member of the SWIFT™ family of DC-DC regulators. This synchronous buck PWM converter is designed for high-efficiency power conversion, integrating all required active components on a single substrate. It operates with an input voltage range of 3V to 6V and provides a fixed output voltage of 1.5V with a continuous output current of 3A. The device is packaged in a thermally enhanced 20-pin HTSSOP (PWP) PowerPAD™ package, which eliminates the need for bulky heatsinks and reduces board area and total cost.
Key Specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Part Number | TPS54313PWPRG4 |
| Package | 20-HTSSOP (0.173", 4.40mm Width) Exposed Pad |
| Input Voltage Range | 3V to 6V |
| Output Voltage | 1.5V (Fixed) |
| Output Current | 3A |
| Switching Frequency | 350 kHz, 550 kHz or Adjustable (280 kHz to 700 kHz) |
| Synchronous Rectifier | Yes |
| Operating Temperature Range | -40°C to 125°C |
| Mounting Type | Surface Mount |
Key Features
- 60-mΩ MOSFET switches for high efficiency
- Fixed output voltage devices with 1.0% initial accuracy (available in 0.9V, 1.2V, 1.5V, 1.8V, 2.5V, and 3.3V)
- Internally compensated for low parts count
- Fast transient response
- Wide PWM frequency range: fixed 350 kHz, 550 kHz or adjustable 280 kHz to 700 kHz
- Load protected by peak current limit and thermal shutdown
- Integrated solution reduces board area and total cost
- Undervoltage-lockout circuit to prevent start-up until the input voltage reaches 3 V
- Internally and externally set slow-start circuit to limit in-rush currents
- Powergood output useful for processor/logic reset, fault signaling, and supply sequencing
Applications
The TPS54313PWPRG4 is suitable for a variety of applications requiring high-efficiency power conversion, including:
- Industrial control systems
- Medical devices
- Telecommunications equipment
- Server and storage systems
- Automotive systems (where applicable within the operating temperature range)
Q & A
- What is the input voltage range of the TPS54313PWPRG4?
The input voltage range is 3V to 6V.
- What is the fixed output voltage of the TPS54313PWPRG4?
The fixed output voltage is 1.5V.
- What is the maximum output current of the TPS54313PWPRG4?
The maximum output current is 3A.
- What are the available switching frequencies for the TPS54313PWPRG4?
The switching frequencies are fixed at 350 kHz and 550 kHz, or adjustable from 280 kHz to 700 kHz.
- Does the TPS54313PWPRG4 have built-in protection features?
- What is the operating temperature range of the TPS54313PWPRG4?
The operating temperature range is -40°C to 125°C.
- What type of package does the TPS54313PWPRG4 come in?
- What is the purpose of the powergood output in the TPS54313PWPRG4?
The powergood output is useful for processor/logic reset, fault signaling, and supply sequencing.
- How does the TPS54313PWPRG4 reduce board area and total cost?
- What tools are available to aid in designing with the TPS54313PWPRG4?
