Overview
The TPS82084, part of the TPS82084/5 series from Texas Instruments, is a high-efficiency step-down converter power module. This MicroSiP™ module is optimized for small solution size and high efficiency, making it suitable for applications requiring compact and reliable power conversion. The TPS82084 integrates a synchronous step-down converter and an inductor, simplifying design and reducing the need for external components. It operates in PWM mode for medium to heavy load conditions and in Power Save Mode for light load currents, ensuring high efficiency across the entire load current range.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Output Current | - | - | 2 A | A |
| Input Voltage Range | 2.5 V | - | 6 V | V |
| Output Voltage Range | 0.8 V | - | VIN | V |
| Feedback Regulation Voltage (PWM mode) | 792 mV | 800 mV | 808 mV | mV |
| Operating Quiescent Current | - | 17 µA | - | µA |
| Operating Temperature Range | -40°C | - | 125°C | °C |
| PWM Switching Frequency | - | 2.4 MHz | - | MHz |
| High-Side FET On-Resistance | 31 mΩ | 56 mΩ | - | mΩ |
| Low-Side FET On-Resistance | 23 mΩ | 45 mΩ | - | mΩ |
| Package Size | - | - | 2.8 mm x 3.0 mm x 1.3 mm | mm |
Key Features
- Low Profile MicroSiP™ Power Module
- DCS-Control topology for seamless transition between PWM and Power Save Mode
- Up to 95% efficiency
- 17-µA operating quiescent current in Power Save Mode
- -40°C to 125°C operating temperature range
- Hiccup short circuit protection
- Power save mode for light load efficiency
- 100% duty cycle for lowest dropout
- Output discharge function
- Power good output
- Integrated soft startup and support for pre-biased startup
- Over temperature protection
- CISPR11 class B compliant
Applications
- Optical modules
- Single board computers
- Solid state drives
- Metro data centers
- Audio/video control systems
- Radar systems
Q & A
- What is the output current rating of the TPS82084?
The TPS82084 has an output current rating of 2 A.
- What is the input voltage range for the TPS82084?
The input voltage range is from 2.5 V to 6 V.
- What is the operating temperature range of the TPS82084?
The operating temperature range is from -40°C to 125°C.
- What is the typical quiescent current in Power Save Mode?
The typical quiescent current in Power Save Mode is 17 µA.
- Does the TPS82084 have built-in protection features?
Yes, it includes hiccup short circuit protection, over temperature protection, and output discharge function.
- How does the Power Save Mode work?
The device enters Power Save Mode at light load currents, reducing the switching frequency and minimizing the IC's quiescent current to achieve high efficiency.
- What is the PWM switching frequency of the TPS82084?
The PWM switching frequency is typically 2.4 MHz.
- Is the TPS82084 compatible with other Texas Instruments products?
The TPS82084 is pin-to-pin and BOM-to-BOM compatible with the TPS82085, differing only in their rated output current.
- What is the purpose of the power good (PG) output pin?
The PG pin indicates when the output voltage is above 95% of the nominal voltage and can be used for sequencing multiple rails.
- How is the output voltage set for the TPS82084?
The output voltage is set by an external resistor divider connected to the feedback reference pin.
