Overview
The TPS62065DSGT is a highly efficient synchronous step-down DC/DC converter from Texas Instruments. It is part of the TPS6206x family, designed to provide up to 2-A output current with an input voltage range of 2.9 V to 6 V. This converter operates at a 3-MHz fixed frequency and features both power save mode and fixed frequency PWM mode, making it suitable for a variety of power conversion applications. The device is optimized for low noise and high efficiency, with up to 97% efficiency and a typical quiescent current of 18 µA in power save mode.
Key Specifications
| Parameter | Min | Max | Unit | |
|---|---|---|---|---|
| Input Voltage Range | 2.9 | - | 6 | V |
| Output Current Capability | - | - | 2000 | mA |
| Output Voltage Range (Adjustable) | 0.8 * VIN | - | VIN | V |
| Switching Frequency | 2.6 | 3 | 3.4 | MHz |
| Quiescent Current (PFM Mode) | - | 18 | - | µA |
| Shutdown Current | 0.1 | - | 1 | µA |
| Operating Junction Temperature | -40 | - | 125 | °C |
| High-Side MOSFET On-Resistance (VIN = 3.6 V) | 120 | - | 180 | mΩ |
| Low-Side MOSFET On-Resistance (VIN = 3.6 V) | 90 | - | 130 | mΩ |
Key Features
- 3-MHz switching frequency
- Up to 97% efficiency
- Power save mode and fixed frequency PWM mode
- Output voltage accuracy in PWM mode: ±1.5%
- Output capacitor discharge function
- Typical 18 µA quiescent current in power save mode
- 100% duty cycle for lowest dropout
- Voltage positioning and clock dithering
- -40°C to 125°C operating junction temperature
- Supports maximum 1-mm height solutions
- Available in a 2 mm x 2 mm x 0.75 mm WSON package
Applications
- Point of Load (POL) power conversion
- Notebooks and pocket PCs
- Portable media players
- DSP supply
Q & A
- What is the input voltage range of the TPS62065DSGT?
The input voltage range is from 2.9 V to 6 V. - What is the maximum output current of the TPS62065DSGT?
The maximum output current is 2 A. - What are the operating modes of the TPS62065DSGT?
The device operates in both power save mode and fixed frequency PWM mode. - How does the MODE pin affect the operation of the TPS62065DSGT?
The MODE pin allows selection between power save mode and fixed frequency PWM mode. Pulling the MODE pin high forces the device into fixed frequency PWM mode, while connecting it to GND enables the power save mode. - What is the typical quiescent current in power save mode?
The typical quiescent current is 18 µA. - What is the operating junction temperature range of the TPS62065DSGT?
The operating junction temperature range is from -40°C to 125°C. - Does the TPS62065DSGT have a power good output feature?
No, the power good output feature is available in the TPS62067 model, not the TPS62065. - What is the package type and size of the TPS62065DSGT?
The device is available in a 2 mm x 2 mm x 0.75 mm WSON package. - What are some typical applications of the TPS62065DSGT?
Typical applications include point of load (POL) power conversion, notebooks, pocket PCs, portable media players, and DSP supply. - How efficient is the TPS62065DSGT?
The device can achieve up to 97% efficiency.
