TPS64203 采用 SOT-23 封装静态电流为 20uA 的可调节高达 3A 输出的 95% 效率步降控制器
TPS64203 描述
The TPS6420x are nonsynchronous step-down controllers that are ideally suited for systems powered from a 5-V or 3.3-V bus or for applications powered from a 1-cell Li-Ion battery or from a 2- to 4-cell NiCd, NiMH, or alkaline battery. These step-down controllers drive an external P-channel MOSFET allowing design flexibility. To achieve highest efficiency over a wide load current range, this controller uses a minimum on time, minimum off time control scheme and consumes only 20-µA quiescent current. The minimum on time of typically 600 ns (TPS64203) allows the use of small inductors and capacitors. When disabled, the current consumption is reduced to less than 1 µA. The TPS6420x is available in the 6-pin SOT23 (DBV) package and operates over a free air temperature range of –40°C to 85°C.
|
TPS64200 |
TPS64201 |
TPS64202 |
TPS64203 |
| Topology |
Buck |
Buck |
Buck |
Buck |
| Vin(Min)(V) |
1.8 |
1.8 |
1.8 |
1.8 |
| Vin(Max)(V) |
6.5 |
6.5 |
6.5 |
6.5 |
| Vout(Min)(V) |
1.2 |
1.2 |
1.2 |
1.2 |
| Vout(Max)(V) |
6.5 |
6.5 |
6.5 |
6.5 |
| Regulated Outputs(#) |
1 |
1 |
1 |
1 |
| Iout(Max)(A) |
3 |
3 |
3 |
3 |
| Iq(Typ)(mA) |
0.02 |
0.02 |
0.02 |
0.02 |
| Pin/Package |
6SOT-23 |
6SOT-23 |
6SOT-23 |
6SOT-23 |
| Thermal Shutdown |
No |
No |
No |
No |
| Rating |
Catalog |
Catalog |
Catalog |
Catalog |
| Duty Cycle(Max)(%) |
100 |
100 |
100 |
100 |
TPS64203 特性
- Step-Down Controller for Applications With up to 95% Efficiency
- 1.8-V to 6.5-V Operating Input Voltage Range
- Adjustable Output Voltage Range From 1.2 V to VI
- High Efficiency Over a Wide Load Current Range
- 100% Maximum Duty Cycle for Lowest Dropout
- Internal Softstart
- 20-µA Quiescent Current (Typical)
- Overcurrent Protected
- Available in a SOT23 Package
- APPLICATIONS
- USB Powered Peripherals
- Organizers, PDAs, and Handheld PCs
- Low Power DSP Supply
- Digital Cameras
- Hard Disk Drives
- Portable Audio Players
TPS64203 芯片订购指南
| 器件 |
状态 |
温度 (oC) |
价格（美元） |
封装 | 引脚 |
封装数量 | 封装载体 |
丝印标记 |
| TPS64203DBVR |
ACTIVE |
-40 to 85 |
0.55 | 1ku |
SOT-23 (DBV) | 6 |
3000 | LARGE T&R |
PJAI |
| TPS64203DBVRG4 |
ACTIVE |
-40 to 85 |
0.55 | 1ku |
SOT-23 (DBV) | 6 |
3000 | LARGE T&R |
PJAI |
| TPS64203DBVT |
ACTIVE |
-40 to 85 |
0.60 | 1ku |
SOT-23 (DBV) | 6 |
250 | SMALL T&R |
PJAI |
| TPS64203DBVTG4 |
ACTIVE |
-40 to 85 |
0.60 | 1ku |
SOT-23 (DBV) | 6 |
250 | SMALL T&R |
PJAI |
TPS64203 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 |
| TPS64203DBVR |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-1-260C-UNLIM |
|
TPS64203DBVR |
| TPS64203DBVRG4 |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-1-260C-UNLIM |
TPS64203DBVRG4 |
TPS64203DBVRG4 |
| TPS64203DBVT |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-1-260C-UNLIM |
|
TPS64203DBVT |
| TPS64203DBVTG4 |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-1-260C-UNLIM |
TPS64203DBVTG4 |
TPS64203DBVTG4 |
TPS64203 应用技术支持与电子电路设计开发资源下载
- TPS64203 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)
TPS64203 相关工具
| 名称 |
型号 |
公司 |
工具/软件类型 |
| TPS64203 评估模块 (3.3V @ 2A) |
TPS64203EVM-023 |
Texas Instruments |
开发电路板/EVM |
| 用于 Xilinx FPGA 的 XILINXPWR-079 电源管理评估模块 |
XILINXPWR-079 |
Texas Instruments |
开发电路板/EVM |
TPS64203 参考设计
| 说明 |
型号 |
公司 |
| Spartan™-3 电源管理解决方案（设计 1） |
PR213 |
Texas Instruments |
| Spartan™-II 电源管理解决方案（设计 3） |
PR211 |
Texas Instruments |
| Spartan™-IIE 电源管理解决方案（设计 3） |
PR212 |
Texas Instruments |
