TPS63051 - 小型单电感器降压/升压转换器

TPS63051是TI德州仪器公司的一款转换器（集成开关）产品，TPS63051是小型单电感器降压/升压转换器，本站介绍了TPS63051的封装应用图解、特点和优点、功能等，并给出了与TPS63051相关的TI元器件型号供参考。

TPS63051 - 小型单电感器降压/升压转换器 - 转换器（集成开关） - DC/DC开关稳压器 - 德州仪器

产品特性

Real Buck or Boost with Seamless Transition Between Buck and Boost Mode
2.5 V to 5.5 V Input Voltage Range
0.5-A Continuous Output Current: VIN ≥ 2.5 V, VOUT = 3.3 V
Adjustable and Fixed Output Voltage Version
Efficiency > 90% in Boost Mode and > 95% in Buck Mode
2.5-MHz Typical Switching Frequency
Adjustable Average Input Current Limit
Adjustable Soft-Start Time
Device Quiescent Current < 60 μA
Automatic Power Save Mode or Forced PWM Mode
Load Disconnect During Shutdown
Overtemperature Protection
Small 1.6mm x 1.2mm, 12-pin WCSP and 2.5mm x 2.5mm 12-pin HotRod™ QFN package

产品应用

Cellular and Smart Phones
Tablets PC
PC and Smart Phone Accessories
Battery Powered Applications
Smart Grid/Smart Meter

产品说明

The TPS6305x family of devices is a high efficiency, low quiescent-current buck-boost converter, suitable for applications where the input voltage is higher or lower than the output.

Continuous output current can go as high as 500 mA in boost mode and as high as 1 A in buck mode. The maximum average current in the switches is limited to a typical value of 1 A. The TPS6305x family of devices regulate the output voltage over the complete input voltage range by automatically switching between buck or boost mode depending on the input voltage, ensuring seamless transition between modes.

The buck-boost converter is based on a fixed-frequency, pulse-width-modulation (PWM) controller using synchronous rectification to obtain the highest efficiency. At low load currents, the converter enters Power Save Mode to maintain high efficiency over the complete load current range.

The PFM/PWM pin allows the user to select between automatic-PFM/PWM mode operation and forced-PWM operation. During PWM mode a fixed-frequency of typically 2.5 MHz is used. 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 device is packaged in a 12-pin DSBGA and in a 12-pin HotRod package.

Device Information (1)

PART NUMBER	PACKAGE	BODY SIZE (NOM)
TPS63050	DSBGA (12)	1.56mm x 1.16mm
TPS63051	VQFN (12)	2.50mm × 2.50mm

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