TPS54418 6V, 4A, 2MHz, Synchronous SWIFT
TPS54418 描述
The TPS54418 device is a full featured 6 V, 4 A, synchronous step down current mode converter with two integrated MOSFETs.
The TPS54418 enables small designs by integrating the MOSFETs, implementing current mode control to reduce external component count, reducing inductor size by enabling up to 2 MHz switching frequency, and minimizing the IC footprint with a small 3mm × 3mm thermally enhanced QFN package.
The TPS54418 provides accurate regulation for a variety of loads with an accurate ±1% Voltage Reference (VREF) over temperature.
Efficiency is maximized through the integrated 30mΩ MOSFETs and 350µA typical supply current. Using the enable pin, shutdown supply current is reduced to 2 µA by entering a shutdown mode.
|
TPS53311 |
TPS54218 |
TPS54318 |
TPS54319 |
TPS54418 |
| Iout(Max)(A) |
3 |
2 |
3 |
3 |
4 |
| Vin(Min)(V) |
2.9 |
2.95 |
2.95 |
2.95 |
2.95 |
| Vin(Max)(V) |
6.0 |
6 |
6 |
6 |
6 |
| Vout(Min)(V) |
0.6 |
0.8 |
0.8 |
0.8 |
0.8 |
| Vout(Max)(V) |
|
4.5 |
4.5 |
4.5 |
4.5 |
| Iq(Typ)(mA) |
2.2 |
0.35 |
0.35 |
0.36 |
0.35 |
| Switching Frequency(Max)(kHz) |
1100 |
2000 |
2000 |
2000 |
2000 |
| Switch Current Limit(Typ)(A) |
4.5 |
2.9 |
4 |
4 |
5 |
| Topology |
Buck |
Buck |
Buck |
Buck |
Buck |
| Operating Temperature Range(°C) |
-40 to 85 |
-40 to 150 |
-40 to 150 |
-40 to 150 |
-40 to 150 |
| Pin/Package |
16QFN |
16WQFN |
16WQFN |
16WQFN |
16WQFN |
| Rating |
Catalog |
Catalog |
Catalog |
Catalog |
Catalog |
| Duty Cycle(Max)(%) |
84.5 |
98 |
98 |
98 |
98 |
| Regulated Outputs(#) |
1 |
1 |
1 |
1 |
1 |
| Thermal Shutdown |
Yes |
Yes |
Yes |
Yes |
yes |
TPS54418 特性
- Two 30 mΩ (typical) MOSFETs for high efficiency at 4 A loads
- 200kHz to 2MHz Switching Frequency
- 0.8 V ± 1% Voltage Reference Over Temperature
- Synchronizes to External Clock
- Adjustable Slow Start/Sequencing
- UV and OV Power Good Output
- Low Operating and Shutdown Quiescent Current
- Safe Start-up into Pre-Biased Output
- Cycle by Cycle Current Limit, Thermal and Frequency Fold Back Protection
- –40°C to 150°C Operating Junction Temperature Range
- Thermally Enhanced 3mm × 3mm 16-pin QFN
- APPLICATIONS
- Low-Voltage, High-Density Power Systems
- Point of Load Regulation for High Performance DSPs, FPGAs, ASICs and Microprocessors
- Broadband, Networking and Optical Communications Infrastructure
TPS54418 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 |
| TPS54418RTER |
ACTIVE |
-40 to 150 |
2.00 | 1ku |
WQFN (RTE) | 16 |
3000 | LARGE T&R |
54418 |
| TPS54418RTET |
ACTIVE |
-40 to 150 |
2.20 | 1ku |
WQFN (RTE) | 16 |
250 | SMALL T&R |
54418 |
TPS54418 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 |
| TPS54418RGTR |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-2-260C-1 YEAR |
|
TPS54418RGTR |
| TPS54418RTET |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-2-260C-1 YEAR |
|
TPS54418RTET |
TPS54418 应用技术支持与电子电路设计开发资源下载
- TPS54418 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)
TPS54418 相关工具
TPS54418 参考设计
| 说明 |
型号 |
公司 |
| Synchronous Buck Controller Doubles as a 2-A Buck Boost Inverter |
PMP4856 |
Texas Instruments |
