TPS54311 具有 0.9V 输出的低输入电压 3A 同步降压转换器

TPS54311
Iout(Max)(A) 3  
Vin(Min)(V) 3  
Vin(Max)(V) 6  
Preset Vout(V) 0.9  
Iq(Typ)(mA) 6.2  
Switching Frequency(Max)(kHz) 700  
Switch Current Limit(Typ)(A) 4  
Topology Buck  
Pin/Package 20HTSSOP  
Rating Catalog  
Duty Cycle(Max)(%) 90  
Regulated Outputs(#) 1  
Thermal Shutdown Yes 
TPS54311 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 convertersintegrate all required active components. Included on the substrate with the listed features are a true, high performance, voltage error amplifier that provides fast response 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 devices are available in a thermally enhanced 20-pin TSSOP (PWP) PowerPAD™ package, which eliminates bulky heatsinks.

TPS54311 特性
TPS54311 芯片订购指南
器件 状态 价格(美元) 封装 | 引脚 封装数量 | 封装载体 丝印标记
TPS54311PWP ACTIVE 3.10 | 1ku HTSSOP (PWP) | 20 70 | TUBE TPS54311
TPS54311PWPG4 ACTIVE 3.10 | 1ku HTSSOP (PWP) | 20 70 | TUBE TPS54311
TPS54311PWPR ACTIVE 2.85 | 1ku HTSSOP (PWP) | 20 2000 | LARGE T&R TPS54311
TPS54311PWPRG4 ACTIVE 2.85 | 1ku HTSSOP (PWP) | 20 2000 | LARGE T&R TPS54311
TPS54311 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
TPS54311PWP Green (RoHS & no Sb/Br)  CU NIPDAU  Level-1-260C-UNLIM   TPS54311PWP
TPS54311PWPG4 Green (RoHS & no Sb/Br)  CU NIPDAU  Level-1-260C-UNLIM TPS54311PWPG4 TPS54311PWPG4
TPS54311PWPR Green (RoHS & no Sb/Br)  CU NIPDAU  Level-1-260C-UNLIM   TPS54311PWPR
TPS54311PWPRG4 Green (RoHS & no Sb/Br)  CU NIPDAU  Level-1-260C-UNLIM TPS54311PWPRG4 TPS54311PWPRG4
TPS54311 应用技术支持与电子电路设计开发资源下载
  1. TPS54311 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)
TPS54311 相关工具
名称 型号 公司 工具/软件类型
3A、输入电压为 3V 至 6V、输出电压固定为 1.8V 的 DC/DC 转换器 TPS54311EVM 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