TPS54317 3V 至 6V、3A、1.6MHz 同步降压 SWIFTTM 转换器
|
TPS54317 |
TPS54377 |
| Iout(Max)(A) |
3 |
3 |
| Vin(Min)(V) |
3 |
3 |
| Vin(Max)(V) |
6 |
6 |
| Vout(Min)(V) |
0.9 |
0.9 |
| Vout(Max)(V) |
3.3 |
3.3 |
| Iq(Typ)(mA) |
6.2 |
6.2 |
| Switching Frequency(Max)(kHz) |
1600 |
1600 |
| Switch Current Limit(Typ)(A) |
4 |
4 |
| Topology |
Buck |
Buck |
| Operating Temperature Range(°C) |
-40 to 125 |
-40 to 125 |
| Pin/Package |
24VQFN |
24VQFN |
| Rating |
Catalog |
Catalog |
| Duty Cycle(Max)(%) |
90 |
90 |
| Regulated Outputs(#) |
1 |
1 |
| Thermal Shutdown |
Yes |
yes |
TPS54317 描述
As members of the SWIFT family of dc/dc regulators, the TPS54317 low-input-voltage high-output-current synchronous-buck PWM converter integrates all required active components. Included on the substrate with the listed features are a true, high performance, voltage error amplifier that provides high performance under transient conditions; an undervoltage-lockout circuit to prevent start-up until the input voltage reaches 3 V; an internally and externally set slow-start circuit to limit in-rush currents; and a power good output useful for processor/logic reset, fault signaling, and supply sequencing.
The TPS54317 device is available in a thermally enhanced 24-pin QFN (RHF) PowerPAD package, which eliminates bulky heatsinks.
TPS54317 特性
- 60-mOhm MOSFET Switches for High Efficiency at 3-A Continuous Output Current
- Adjustable Output Voltage Down to 0.9 V With 1% Accuracy
- Switching Frequency: Adjustable From 280 kHz to 1600 kHz
- Externally Compensated for Design Flexibility
- Fast Transient Response
- Load Protected by Peak Current Limit and Thermal Shutdown
- Integrated Solution Reduces Board Area and Total Cost
- Spacing Saving 4mm x 5mm QFN Packaging
- For SWIFT Documentation, Application Notes, and Design Software, see the TI website at www.ti.com/swift
- APPLICATIONS
- Low-Voltage, High-Density Systems With Power Distributed at 5 V or 3.3 V
- Point of Load Regulation for High Performance DSPs, FPGAs, ASICs, and Microprocessors
- Broadband, Networking and Optical Communications Infrastructure
TPS54317 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 |
| TPS54317RHFR |
ACTIVE |
-40 to 125 |
2.50 | 1ku |
VQFN (RHF) | 24 |
3000 | LARGE T&R |
54317 |
| TPS54317RHFRG4 |
ACTIVE |
-40 to 125 |
2.50 | 1ku |
VQFN (RHF) | 24 |
3000 | LARGE T&R |
54317 |
| TPS54317RHFT |
ACTIVE |
-40 to 125 |
2.75 | 1ku |
VQFN (RHF) | 24 |
250 | SMALL T&R |
54317 |
| TPS54317RHFTG4 |
ACTIVE |
-40 to 125 |
2.75 | 1ku |
VQFN (RHF) | 24 |
250 | SMALL T&R |
54317 |
TPS54317 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 |
| TPS54317RHFR |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-1-260C-UNLIM |
|
TPS54317RHFR |
| TPS54317RHFRG4 |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-1-260C-UNLIM |
TPS54317RHFRG4 |
TPS54317RHFRG4 |
| TPS54317RHFT |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-1-260C-UNLIM |
|
TPS54317RHFT |
| TPS54317RHFTG4 |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-1-260C-UNLIM |
TPS54317RHFTG4 |
TPS54317RHFTG4 |
TPS54317 应用技术支持与电子电路设计开发资源下载
- TPS54317 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)
TPS54317 相关工具
| 名称 |
型号 |
公司 |
工具/软件类型 |
| 1.6MHz、3A、3-6V 输入步降转换器 |
TPS54317EVM-159 |
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 |