TPS63021 - High Current Buck-Boost Converter

TPS63021是TI德州仪器公司的一款转换器（集成开关）产品，TPS63021是High Current Buck-Boost Converter，本站介绍了TPS63021的封装应用图解、特点和优点、功能等，并给出了与TPS63021相关的TI元器件型号供参考。

TPS63021 - High Current Buck-Boost Converter - 转换器（集成开关） - DC/DC开关稳压器 - 德州仪器

产品特性

Input Voltage Range: 1.8 V to 5.5 V
Fixed and Adjustable Output Voltage Options from 1.2 V to 5.5 V
Up to 96% Efficiency
3-A Output Current at 3.3 V in Step Down Mode (VIN = 3.6 V to 5.5 V)
More than 2-A Output Current at 3.3 V in Boost Mode (VIN > 2.5 V)
Automatic Transition Between Step Down and Boost Mode
Dynamic Input Current Limit
Device Quiescent Current less than 50 μA
Power Save Mode for Improved Efficiency at Low Output Power
Forced Fixed Frequency Operation at 2.4 MHz and Synchronization Possible
Smart Power Good Output
Load Disconnect During Shutdown
Overtemperature Protection
Overvoltage Protection
Available in a 3mm × 4mm 14-Pin VSON Package (DSJ)

产品应用

All Two-Cell and Three-Cell Alkaline, NiCd or NiMH or Single-Cell Li Battery Powered Products
Ultra Mobile PCs and Mobile Internet Devices
Digital Media Players
Digital Still Cameras (DSC) and Camcorders
Mobile Phones and Smart Phones
Personal Medical Products
Industrial Metering Equipment
High Power LEDs

SPACE

Typical Application Schematic

产品说明

The TPS6302x devices provide a power supply solution for products powered by either a two-cell or three-cell alkaline, NiCd or NiMH battery, or a one-cell Li-ion or Li-polymer battery. Output currents can go as high as 3 A while using a single-cell Li-ion or Li-polymer battery, and discharge it down to 2.5 V or lower. The buck-boost converter is based on a fixed frequency, pulse width modulation (PWM) controller using synchronous rectification to obtain maximum efficiency. At low load currents, the converter enters power save mode to maintain high efficiency over a wide load current range. The power save mode can be disabled, forcing the converter to operate at a fixed switching frequency. The maximum average current in the switches is limited to a typical value of 4 A. The output voltage is programmable using an external resistor divider, or is fixed internally on the chip. The converter can be disabled to minimize battery drain. During shutdown, the load is disconnected from the battery.

The TPS6302x devices operate over a free air temperature range of –40°C to 85°C. The devices are packaged in a 14-pin VSON package measuring 3mm × 4mm (DSJ).

产品器件信息

PART NUMBER	PACKAGE	OUTPUT VOLTAGE DC/DC
TPS63020	VSON (14)	Adjustable
TPS63021	VSON (14)	3.3 V

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