Overview
The TPS61016DGSRG4 from Texas Instruments is a high-efficiency boost converter designed for use in a variety of battery-powered systems. This device is part of the TPS6101x family, which includes fixed and adjustable output voltage versions. The TPS61016 specifically offers an adjustable output voltage range from 1.5 to 3.3 volts, making it versatile for different application requirements.
The converter operates using a fixed frequency, current-mode, pulse-width-modulation (PWM) topology with a built-in synchronous rectifier. It features a power-save mode that minimizes switching losses at light loads, ensuring high efficiency across a wide output current range.
Key Specifications
| Parameter | Minimum | Typical | Maximum | Unit |
|---|---|---|---|---|
| Input Voltage Range | 0.9 | - | 3.3 | V |
| Output Voltage Range (TPS61016) | 1.5 | - | 3.3 | V |
| Maximum Continuous Output Current | - | - | 200 | mA |
| Switch Current Limit | 1.07 | - | 1.13 | A |
| Feedback Voltage | 480 | 500 | 520 | mV |
| Oscillator Frequency | 420 | 500 | 780 | kHz |
| Maximum Duty Cycle | - | - | 85% | % |
| Operating Free-Air Temperature Range | -40 | - | 85 | °C |
| Maximum Junction Temperature | - | - | 150 | °C |
Key Features
- High Efficiency: The TPS61016 operates with high efficiency over a wide output current range, especially in power-save mode at light loads.
- Adjustable Output Voltage: The output voltage can be adjusted from 1.5 to 3.3 volts using an external resistor divider.
- Current Mode PWM Control: Uses a constant frequency pulse-width modulator to regulate the output voltage.
- Synchronous Rectifier: Built-in synchronous rectifier reduces losses and improves efficiency.
- Auto-Discharge Function: Allows discharging the output capacitor during shutdown when the ADEN pin is connected to VBAT.
- Low Battery Indicator (LBI): Provides a low-battery indication when the input voltage drops below a certain threshold.
- Power-Save Mode: Minimizes switching losses at light loads by reducing the switching frequency.
Applications
The TPS61016 is suitable for various battery-powered systems, including:
- Single-cell or two-cell NiCd or NiMH battery-powered devices.
- Single-cell or dual-cell primary and secondary alkaline battery-powered devices.
- Portable electronics such as handheld devices, GPS units, and other battery-powered gadgets.
- Industrial control systems and sensors that require efficient power conversion.
Q & A
- What is the input voltage range of the TPS61016?
The input voltage range is from 0.9 V to 3.3 V.
- What is the adjustable output voltage range of the TPS61016?
The output voltage can be adjusted from 1.5 V to 3.3 V.
- What is the maximum continuous output current of the TPS61016?
The maximum continuous output current is 200 mA.
- How does the power-save mode work in the TPS61016?
In power-save mode, the device reduces switching losses at light loads by minimizing the switching frequency.
- What is the purpose of the auto-discharge function in the TPS61016?
The auto-discharge function allows discharging the output capacitor during shutdown when the ADEN pin is connected to VBAT.
- What types of batteries can the TPS61016 be used with?
The TPS61016 can be used with single-cell or two-cell NiCd or NiMH batteries, as well as single-cell or dual-cell primary and secondary alkaline batteries.
- What is the operating free-air temperature range of the TPS61016?
The operating free-air temperature range is from -40°C to 85°C.
- How is the output voltage adjusted in the TPS61016?
The output voltage is adjusted using an external resistor divider connected to the FB pin.
- What is the typical oscillator frequency of the TPS61016?
The typical oscillator frequency is 500 kHz.
- What is the maximum duty cycle of the TPS61016?
The maximum duty cycle is 85%.
