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TPS54140-Q1 具有 Eco-Mode(tm) 的汽车类 3.5V 至 42V 输入、1.5A 降压 SWIFT(tm) 转换器

TPS54140-Q1
Iout(Max)(A) 1.5
Vin(Min)(V) 3.5
Vin(Max)(V) 42
Vout(Min)(V) 0.8
Vout(Max)(V) 39
Iq(Typ)(mA) 0.116
Switching Frequency(Max)(kHz) 2500
Switch Current Limit(Typ)(A) 1.8
Topology Inverting Buck/Boost
Operating Temperature Range(°C) -40 to 125
Pin/Package 10MSOP-PowerPAD, 10SON
Rating Automotive
Duty Cycle(Max)(%) 98
Regulated Outputs(#) 1
Thermal Shutdown Yes
TPS54140-Q1 描述

The TPS54140 device is a 42-V 1.5-A step-down regulator with an integrated high-side MOSFET. Current-mode control provides simple external compensation and flexible component selection. A low-ripple pulse-skip mode reduces the no load, regulated output supply current to 116 uA. Using the enable pin, shutdown supply current is reduced to 1.3 uA.

Undervoltage lockout is internally set at 2.5 V, but can be increased using the enable pin. The output voltage startup ramp is controlled by the slow start pin that can also be configured for sequencing/tracking. An open-drain power good signal indicates the output is within 93% to 107% of its nominal voltage.

A wide switching frequency range allows efficiency and external component size to be optimized

TPS54140-Q1 特性
TPS54140-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
TPS54140QDGQRQ1 ACTIVE -40 to 125 1.85 | 1ku MSOP-PowerPAD (DGQ) | 10 2500 | LARGE T&R 5414Q
TPS54140QDRCRQ1 ACTIVE -40 to 125 1.85 | 1ku SON (DRC) | 10 3000 | LARGE T&R 5414Q
TPS54140-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
TPS54140QDGQRQ1 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM   TPS54140QDGQRQ1
TPS54140QDRCRQ1 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM   TPS54140QDRCRQ1
TPS54140-Q1 应用技术支持与电子电路设计开发资源下载
  1. TPS54140-Q1 数据资料 dataSheet 下载.PDF
  2. TI 德州仪器非隔离式开关 DC/DC 调节器选型与价格参考 . xls
  3. Dual MOSFET Driver (PDF 498 KB)
  4. 全面认识开关型电源中的BUCK-BOOST功率级 (Rev. A) (PDF 2206 KB)
  5. Understanding Boost Power Stages In Switchmode Power Supplies (PDF 149 KB)
  6. Understanding Buck Power Stages In Switchmode Power Supplies (PDF 173 KB)
  7. 标准线性产品交叉参考 (Rev. D) (PDF 1058 KB)
  8. 模数规格和性能特性术语表 (Rev. A) (PDF 1993 KB)
  9. 所选封装材料的热学和电学性质 (PDF 645 KB)
  10. 高速数据转换 (PDF 1967 KB)