TPS62021 采用 QFN-10 封装的可调节、600mA、95% 高效步降转换器，18uA、工作态低电平模式
TPS62021 描述
The TPS6202x is a high efficiency synchronous step-down dc-dc converter optimized for battery powered portable applications. This device is ideal for portable applications powered by a single Li-Ion battery cell or by 3-cell NiMH/NiCd batteries. With an output voltage range from 6.0 V down to 0.7 V, the device supports low voltage DSPs and processors in PDAs, pocket PCs, as well as notebooks and subnotebook computers. The TPS6202x operates at a fixed switching frequency of 1.25 MHz and enters the power save mode operation at light load currents to maintain high efficiency over the entire load current range. For low noise applications, the device can be forced into fixed frequency PWM mode by pulling the MODE pin high.
|
TPS62020 |
TPS62021 |
TPS62026 |
| Iout(Max)(A) |
0.6 |
0.6 |
0.6 |
| Vin(Min)(V) |
2.5 |
2.5 |
2.5 |
| Vin(Max)(V) |
6 |
6 |
6 |
| Vout(Min)(V) |
0.7 |
0.7 |
3.3 |
| Vout(Max)(V) |
6 |
6 |
3.3 |
| Preset Vout(V) |
|
|
3.3 |
| Iq(Typ)(mA) |
0.018 |
0.018 |
0.018 |
| Switching Frequency(Max)(kHz) |
1500 |
1500 |
1500 |
| Switch Current Limit(Typ)(A) |
1.15 |
1.15 |
|
| Topology |
Buck |
Buck |
Buck |
| Operating Temperature Range(°C) |
-40 to 85 |
-40 to 85 |
-40 to 85 |
| Pin/Package |
10MSOP-PowerPAD, 10SON |
10MSOP-PowerPAD, 10SON |
10MSOP-PowerPAD, 10SON |
| Rating |
Catalog |
Catalog |
Catalog |
| Duty Cycle(Max)(%) |
100 |
100 |
100 |
| Regulated Outputs(#) |
1 |
1 |
1 |
TPS62021 特性
- Up to 95% Conversion Efficiency
- Typical Quiescent Current: 18 µA
- Load Current: 600 mA
- Operating Input Voltage Range: 2.5 V to 6.0 V
- Switching Frequency: 1.25 MHz
- Adjustable and Fixed Output Voltage
- Power Save Mode Operation at Light load Currents
- Active-Low MODE\ pin on TPS62021
- 100% Duty Cycle for Lowest Dropout
- Internal Softstart
- Dynamic Output Voltage Positioning
- Thermal Shutdown
- Short-Circuit Protection
- 10 Pin MSOP PowerPad™ Package
- 10 Pin QFN 3 x 3 mm Package
- APPLICATIONS
- PDA, Pocket PC and Smart Phones
- USB Powered Modems
- CPUs and DSPs
- PC Cards and Notebooks
TPS62021 芯片订购指南
TPS62021 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 |
| TPS62021DGQ |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-1-260C-UNLIM |
|
TPS62021DGQ |
| TPS62021DGQG4 |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-1-260C-UNLIM |
TPS62021DGQG4 |
TPS62021DGQG4 |
| TPS62021DGQR |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-1-260C-UNLIM |
|
TPS62021DGQR |
| TPS62021DGQRG4 |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-1-260C-UNLIM |
TPS62021DGQRG4 |
TPS62021DGQRG4 |
| TPS62021DRCR |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-2-260C-1 YEAR |
|
TPS62021DRCR |
| TPS62021DRCRG4 |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-2-260C-1 YEAR |
TPS62021DRCRG4 |
TPS62021DRCRG4 |
TPS62021 应用技术支持与电子电路设计开发资源下载
- TPS62021 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)
TPS62021 相关工具
| 名称 |
型号 |
公司 |
工具/软件类型 |
| TPS62021 评估模块 |
TPS62021EVM-019 |
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 |
TPS62021 参考设计
| 说明 |
型号 |
公司 |
| LDO、降压/升压、2 相同步降压、同步升压参考设计 |
PR038 |
Texas Instruments |
| 以太网电源 - 同步反向参考设计 |
PMP386 |
Texas Instruments |
| 同步 降压，两个输入电压 4.5-5.5V 的升压 多输出电压 3.3V、5V 和 12V |
PMP146 |
Texas Instruments |
| 降压/升压参考设计 |
PMP379 |
Texas Instruments |
