TPS54312-Q1 汽车类 3V 至 6V 输入 3A 输出的同步降压 PWM 转换开关
|
TPS54312-Q1 |
| Iout(Max)(A) |
3 |
| Vin(Min)(V) |
3 |
| Vin(Max)(V) |
6 |
| Preset Vout(V) |
1.2 |
| Iq(Typ)(mA) |
6.2 |
| Switching Frequency(Max)(kHz) |
700 |
| Switch Current Limit(Typ)(A) |
4 |
| Topology |
Buck |
| Operating Temperature Range(°C) |
-40 to 125 |
| Pin/Package |
20HTSSOP |
| Rating |
Automotive |
| Duty Cycle(Max)(%) |
90 |
| Regulated Outputs(#) |
1 |
| Thermal Shutdown |
Yes |
TPS54312-Q1 描述
As members of the SWIFT family of dc/dc regulators, the TPS54311, TPS54312, TPS54313, TPS54314, TPS54315, and TPS54316 low-input-voltage high-output current synchronous-buck PWM converters integrate 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 TPS54311, TPS54312, TPS54313, TPS54314, TPS54315, and TPS54316 devices are available in a thermally enhanced 20-pin TSSOP (PWP) PowerPADTM package, which eliminates bulky heatsinks
TPS54312-Q1 特性
- Qualified for Automotive Applications
- 60-mOhm MOSFET Switches for High Efficiency at 3-A Continuous Output Source or Sink Current
- 0.9-V, 1.2-V, 1.5-V, 1.8-V, 2.5-V, and 3.3-V Fixed Output Voltage Devices With 1% Initial Accuracy
- Internally Compensated for Low Parts Count
- Fast Transient Response
- Wide PWM Frequency: Fixed 350 kHz, 550 kHz, or Adjustable 280 kHz to 700 kHz
- Load Protected by Peak Current Limit and Thermal Shutdown
- Integrated Solution Reduces Board Area and Total Cost
- 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
- Automotive Telematics
TPS54312-Q1 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 |
| TPS54312QPWPRQ1 |
ACTIVE |
-40 to 125 |
2.60 | 1ku |
HTSSOP (PWP) | 20 |
2500 |
P54312Q1 |
TPS54312-Q1 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 |
| TPS54312QPWPRQ1 |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-2-260C-1 YEAR |
|
TPS54312QPWPRQ1 |
TPS54312-Q1 应用技术支持与电子电路设计开发资源下载
- TPS54312-Q1 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)