Overview
The TPS63030DSKT from Texas Instruments is a high-efficiency single-inductor buck-boost converter designed to provide a versatile power supply solution for a wide range of battery-powered devices. This converter integrates a synchronous step-down converter, an inductor, and input capacitors, simplifying the design process. It supports input voltages from 1.8 V to 5.5 V and offers both fixed and adjustable output voltage options ranging from 1.2 V to 5.5 V. The TPS63030DSKT is particularly suited for products powered by two-cell or three-cell alkaline, NiCd, NiMH batteries, or one-cell Li-ion or Li-polymer batteries.
Key Specifications
| Parameter | Value |
|---|---|
| Input Voltage Range | 1.8 V to 5.5 V |
| Output Voltage Range | 1.2 V to 5.5 V (fixed and adjustable) |
| Efficiency | Up to 96% |
| Output Current (Step-Down Mode) | Up to 800 mA at 3.3 V (VIN = 3.6 V to 5.5 V) |
| Output Current (Boost Mode) | Up to 500 mA at 3.3 V (VIN > 2.4 V) |
| Quiescent Current | |
| Operating Temperature Range | -40°C to 125°C |
| Package Type | 10-pin VSON (DSK) |
| Package Dimensions | 2.5-mm × 2.5-mm |
Key Features
- Automatic transition between step-down and boost mode
- Power-save mode for improved efficiency at low-output power
- Forced fixed frequency operation and synchronization possible
- Load disconnect during shutdown
- Overtemperature protection
- Output voltage programmable using an external resistor divider or fixed internally
- Converter can be disabled to minimize battery drain
- Based on a fixed-frequency, pulse width modulation (PWM) controller using synchronous rectification
Applications
The TPS63030DSKT is suitable for a variety of applications, including:
- Battery-powered devices such as handheld electronics and portable equipment
- Products powered by two-cell or three-cell alkaline, NiCd, NiMH batteries, or one-cell Li-ion or Li-polymer batteries
- LED drivers and lighting systems
- Low-power consumer electronics
Q & A
- What is the input voltage range of the TPS63030DSKT?
The input voltage range is from 1.8 V to 5.5 V.
- What are the output voltage options for the TPS63030DSKT?
The output voltage can be fixed or adjustable, ranging from 1.2 V to 5.5 V.
- What is the maximum efficiency of the TPS63030DSKT?
The converter can achieve up to 96% efficiency.
- What is the maximum output current in step-down mode?
The maximum output current in step-down mode is up to 800 mA at 3.3 V (VIN = 3.6 V to 5.5 V).
- What is the maximum output current in boost mode?
The maximum output current in boost mode is up to 500 mA at 3.3 V (VIN > 2.4 V).
- How does the TPS63030DSKT manage low-load currents?
The converter enters power-save mode to maintain high efficiency at low-load currents.
- Can the power-save mode be disabled?
- What is the quiescent current of the TPS63030DSKT?
The quiescent current is less than 50 µA.
- What are the key protection features of the TPS63030DSKT?
The device includes overtemperature protection and load disconnect during shutdown.
- In what package is the TPS63030DSKT available?
The device is available in a 10-pin VSON package measuring 2.5-mm × 2.5-mm.
