Overview
The TPS62063DSGR is a highly efficient synchronous step-down DC-DC converter from Texas Instruments. It is part of the TPS6206x family, which includes the TPS62060, TPS62061, and TPS62063 models. This device is designed to operate with an input voltage range of 2.7 V to 6 V and provides up to 1.6-A output current, making it suitable for power conversion from single Li-Ion batteries or 5-V and 3.3-V system supply rails.
The TPS62063DSGR operates at a fixed 3-MHz switching frequency and features a power save mode that automatically transitions between PWM and PFM modes to maintain high efficiency over the entire load current range. The device is available in a compact 2-mm × 2-mm × 0.75-mm 8-pin WSON PowerPAD™ package, optimizing it for space-constrained applications.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Input Voltage Range | 2.7 to 6 | V |
| Output Current | Up to 1.6 | A |
| Switching Frequency | 2.6 to 3.4 | MHz |
| Efficiency | Up to 97% | % |
| Output Voltage Accuracy in PWM Mode | ±1.5% | % |
| Quiescent Current | Typical 18 µA | µA |
| High-Side MOSFET On-Resistance (VIN = 3.6 V) | 90 to 130 | mΩ |
| Low-Side MOSFET On-Resistance (VIN = 3.6 V) | 75 to 100 | mΩ |
| Thermal Shutdown Temperature | 150 | °C |
| Operating Temperature Range | -40 to 85 | °C |
Key Features
- High efficiency up to 97% and low quiescent current of typical 18 µA
- Power save mode with automatic transition between PWM and PFM modes for high efficiency over the entire load current range
- Fixed 3-MHz switching frequency and option to force fixed frequency PWM mode for noise-sensitive applications
- Output voltage accuracy in PWM mode of ±1.5%
- Dynamic voltage positioning to reduce voltage undershoots and overshoots during load steps
- 100% duty cycle low dropout operation to extend battery life in battery-powered applications
- Internal current limit and fold-back current limit for short circuit protection
- Output capacitor discharge function in shutdown mode
- Compact 2-mm × 2-mm × 0.75-mm 8-pin WSON PowerPAD™ package
Applications
- Point of Load (POL) power supplies
- Notebooks and pocket PCs
- Portable media players
- DSP supplies
- Other space-constrained power conversion applications requiring high efficiency and low noise
Q & A
- What is the input voltage range of the TPS62063DSGR?
The input voltage range is from 2.7 V to 6 V.
- What is the maximum output current of the TPS62063DSGR?
The maximum output current is up to 1.6 A.
- What is the switching frequency of the TPS62063DSGR?
The switching frequency is fixed at 2.6 to 3.4 MHz.
- How efficient is the TPS62063DSGR?
The device can achieve an efficiency of up to 97%.
- What is the quiescent current of the TPS62063DSGR?
The typical quiescent current is 18 µA.
- How does the power save mode work in the TPS62063DSGR?
The power save mode automatically transitions between PWM and PFM modes to maintain high efficiency over the entire load current range.
- What is dynamic voltage positioning in the TPS62063DSGR?
Dynamic voltage positioning reduces voltage undershoots and overshoots during load steps by regulating the output voltage 1% higher than the nominal value.
- How does the 100% duty cycle low dropout operation work?
The device enters 100% duty cycle mode as the input voltage approaches the nominal output voltage, allowing for a low input-to-output voltage difference, which is particularly useful in battery-powered applications.
- What is the thermal shutdown temperature of the TPS62063DSGR?
The thermal shutdown temperature is 150°C.
- In what package is the TPS62063DSGR available?
The device is available in a 2-mm × 2-mm × 0.75-mm 8-pin WSON PowerPAD™ package.
