TPS63021 High Current Buck-Boost Converter
|
TPS63020 |
TPS63021 |
| Vin(Min)(V) |
1.8 |
1.8 |
| Vin(Max)(V) |
5.5 |
5.5 |
| Preset Vout(V) |
|
3.3 |
| Vout(Min)(V) |
1.2 |
3.3 |
| Vout(Max)(V) |
5.5 |
3.3 |
| Switch Current Limit(Typ)(A) |
4 |
4 |
| Iq(Typ)(mA) |
0.050 |
0.050 |
| Iout(Max)(A) |
3 |
3 |
| Switching Frequency(Max)(kHz) |
2600 |
2600 |
| Regulated Outputs(#) |
1 |
1 |
| Topology |
Buck/Boost |
Buck/Boost |
| Operating Temperature Range(°C) |
-40 to 85 |
-40 to 85 |
| Pin/Package |
14VSON |
14VSON |
TPS63021 描述
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 3A while using a single-cell Li-Ion or Li-Polymer Battery, and discharge it down to 2.5V 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 4A.
TPS63021 特性
- Up to 96% Efficiency
- 3A Output Current at 3.3V in Step Down Mode (VIN = 3.6V to 5.5V)
- More than 2A Output Current at 3.3V in Boost Mode (VIN > 2.5V)
- Automatic Transition Between Step Down and Boost Mode
- Dynamic Input Current Limit
- Device Quiescent Current less than 50uA
- Input Voltage Range: 1.8V to 5.5V
- Fixed and Adjustable Output Voltage Options from 1.2V to 5.5V
- Power Save Mode for Improved Efficiency at Low Output Power
- Forced Fixed Frequency Operation at 2.4MHz and Synchronization Possible
- Smart Power Good Output
- Load Disconnect During Shutdown
- Overtemperature Protection
- Overvoltage Protection
- Available in a 3 × 4-mm, QFN-14 Package
- APPLICATIONS
- All Two-Cell and Three-Cell Alkaline, NiCd or NiMH or
Single-Cell Li Battery Powered Products
- Ultra Mobile PC’s and Mobile Internet Devices
- Digital Media Players
- DSC’s and Camcorders
TPS63021 芯片订购指南
| 器件 |
状态 |
温度 |
价格（美元） |
封装 | 引脚 |
封装数量 | 封装载体 |
丝印标记 |
| TPS63021DSJR |
ACTIVE |
-40 to 85 |
2.50 | 1ku |
VSON (DSJ) | 14 |
3000 | LARGE T&R |
PS63021 |
| TPS63021DSJT |
ACTIVE |
-40 to 85 |
2.75 | 1ku |
VSON (DSJ) | 14 |
250 | SMALL T&R |
PS63021 |
TPS63021 质量与无铅数据
| 器件 |
环保计划* |
铅/焊球涂层 |
MSL 等级/回流焊峰 |
环保信息与无铅 (Pb-free) |
DPPM / MTBF / FIT 率 |
| TPS63021DSJR |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-1-260C-UNLIM |
|
TPS63021DSJR |
| TPS63021DSJT |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-1-260C-UNLIM |
|
TPS63021DSJT |
TPS63021 应用技术支持与电子电路设计开发资源下载
- TPS63021 数据资料 dataSheet 下载.PDF
- TI 德州仪器非隔离式开关 DC/DC 调节器选型与价格参考 . xls
- Dual MOSFET Driver
(PDF 498 KB)
- 全面认识开关型电源中的BUCK-BOOST功率级 (Rev. A)
(PDF 2206 KB)
- Understanding Boost Power Stages In Switchmode Power Supplies
(PDF 149 KB)
- Understanding Buck Power Stages In Switchmode Power Supplies
(PDF 173 KB)
- 标准线性产品交叉参考 (Rev. D)
(PDF 1058 KB)
- 模数规格和性能特性术语表 (Rev. A) (PDF 1993 KB)
- 所选封装材料的热学和电学性质 (PDF 645 KB)
- 高速数据转换 (PDF 1967 KB)
TPS63021 相关工具
| 名称 |
型号 |
公司 |
工具/软件类型 |
| 用于 TPS63021 降压/升压转换器的评估模块 |
TPS63021EVM-487 |
Texas Instruments |
开发电路板/EVM |
| SwitcherPro(TM) 开关电源设计工具 |
SWITCHERPRO |
Texas Instruments |
应用软件 |
TPS63021 参考设计
| 说明 |
型号 |
公司 |
| SpartanTM-3 电源管理解决方案（设计 1） |
PR213 |
Texas Instruments |
| SpartanTM-II 电源管理解决方案（设计 3） |
PR211 |
Texas Instruments |
| SpartanTM-IIE 电源管理解决方案（设计 3） |
PR212 |
Texas Instruments |