TPS54917 3V 至 4V、9A、1.6MHz 同步降压 SWIFT™ 转换器
|
TPS54617 |
TPS54917 |
| Iout(Max)(A) |
6 |
9 |
| Vin(Min)(V) |
3 |
3 |
| Vin(Max)(V) |
6 |
4 |
| Vout(Min)(V) |
0.9 |
0.9 |
| Vout(Max)(V) |
3.3 |
2.5 |
| Iq(Typ)(mA) |
11 |
11 |
| Switching Frequency(Max)(kHz) |
1600 |
1600 |
| Switch Current Limit(Typ)(A) |
7.2 |
11 |
| Topology |
Buck |
Buck |
| Operating Temperature Range(°C) |
-40 to 125 |
-40 to 125 |
| Pin/Package |
34VQFN |
34VQFN |
| Rating |
Catalog |
Catalog |
| Duty Cycle(Max)(%) |
90 |
90 |
| Regulated Outputs(#) |
1 |
1 |
| Thermal Shutdown |
yes |
yes |
TPS54917 描述
As a member of the SWIFT family of dc/dc regulators, the TPS54917 low-input voltage high-output current synchronous buck PWM converter offers the same features as the TPS54910 in a smaller package and higher switching frequency, which allows for a smaller total solution. Included on the substrate with the listed features are a true, high performance, voltage error amplifier that enables maximum performance under transient conditions and flexibility in choosing the output filter L and C components; 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.
TPS54917 特性
- 13-mΩ MOSFET Switches for High Efficiency at 9-A Continuous Output
- Adjustable Output Voltage Down to 0.9V With 1% Accuracy
- Externally Compensated for Design Flexibility
- Wide PWM Frequency: Fixed 350 kHz, 550 kHz, or Adjustable 280 kHz to 1.6 MHz
- Synchronizable to 1.6MHz
- Load Protected by Peak Current Limit and Thermal Shutdown
- Small 3.5mm x 7mm Package and Similar Layout to TPS54910 Reduces Board Area and Total Cost
- SWIFT Documentation Application Notes, and SwitcherPro Software: www.ti.com/swift
- APPLICATIONS
- Low-Voltage, High-Density Systems With Power Distributed at 3.3 V
- Point of Load Regulation for High Performance DSPs, FPGAs, ASICs, and Microprocessors
- Broadband, Networking and Optical Communications Infrastructure
TPS54917 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 |
| TPS54917RUVR |
ACTIVE |
-40 to 125 |
3.30 | 1ku |
VQFN (RUV) | 34 |
3000 | LARGE T&R |
54917 |
| TPS54917RUVT |
ACTIVE |
-40 to 125 |
3.65 | 1ku |
VQFN (RUV) | 34 |
250 | SMALL T&R |
54917 |
TPS54917 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 |
| TPS54917RUVR |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-3-260C-168 HR |
|
TPS54917RUVR |
| TPS54917RUVT |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-3-260C-168 HR |
|
TPS54917RUVT |
TPS54917 应用技术支持与电子电路设计开发资源下载
- TPS54917 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)
TPS54917 相关工具
| 名称 |
型号 |
公司 |
工具/软件类型 |
| 9A、3V 至 4V 输入电压 SWIFT™ 转换器评估模块 |
TPS54917EVM-367 |
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 |
TPS54917 参考设计
| 说明 |
型号 |
公司 |
| 3-A, 600-kHz Dual Wide-Input Buck Converter |
PMP2808 |
Texas Instruments |
