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TPS53125 Dual Synchronous Step-Down Controller for Low Voltage Power Rails

TPS53125 描述

The TPS53125 is a dual, adaptive on-time D-CAP2 mode synchronous buck controller. The part enables system designers to cost effectively complete the suite of various end equipment’s power bus regulators with a low external component count and low standby consumption. The main control loop for the TPS53125 uses the D-CAP2 Mode topology which provides a very fast transient response with no external component.

The TPS53125 also has a proprietary circuit that enables the device to adapt not only low equivalent series resistance (ESR) output capacitors such as POSCAP/SP-CAP, but also ceramic capacitor. The part provides a convenient and efficient operation with conversion voltages from 4.5 V to 24 V and output voltage from 0.

TPS53124 TPS53125 TPS53126 TPS53127
Topology Buck, D-CAPTMMode Buck, D-CAP2TM Mode Buck, D-CAP2TM Mode Buck, D-CAP2TM Mode
Vin(Min)(V) 4.5 4.5 4.5 4.5
Vin(Max)(V) 24 24 24 24
Vout(Min)(V) 0.76 0.76 0.76 0.76
Vout(Max)(V) 5.5 5.5 5.5 5.5
Regulated Outputs(#) 2 2 2 2
Iout(Max)(A) 15 15 15 15
Switching Frequency(Max)(kHz) 380 350 350, 700 700
Iq(Typ)(mA) 0.45 0.45 0.45 0.45
Pin/Package 24VQFN, 28TSSOP 24TSSOP, 24VQFN 24TSSOP, 24VQFN 24TSSOP, 24VQFN
Thermal Shutdown Yes Yes Yes Yes
Vout2(Min)(V) 0.76 0.76 0.76 0.76
Vout2(Max)(V) 5.5 5.5 5.5 5.5
Iout2(A) 15 15 15 15
Rating Catalog Catalog Catalog Catalog
Duty Cycle(Max)(%) 89 89 89 89
TPS53125 特性
TPS53125 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
TPS53125PW ACTIVE -40 to 85 2.15 | 1ku TSSOP (PW) | 24 50 | TUBE TPS53125
TPS53125PWR ACTIVE -40 to 85 1.95 | 1ku TSSOP (PW) | 24 2000 | LARGE T&R TPS53125
TPS53125RGER ACTIVE -40 to 85 1.95 | 1ku VQFN (RGE) | 24 3000 | LARGE T&R TPS53125
TPS53125RGET ACTIVE -40 to 85 2.15 | 1ku VQFN (RGE) | 24 250 | SMALL T&R TPS53125
TPS53125 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
TPS53125PW Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM   TPS53125PW
TPS53125PWR Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM   TPS53125PWR
TPS53125RGER Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEAR   TPS53125RGER
TPS53125RGET Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEAR   TPS53125RGET
TPS53125 应用技术支持与电子电路设计开发资源下载
  1. TPS53125 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)
TPS53125 相关工具
名称 型号 公司 工具/软件类型
TPS53125EVM 高效双路同步降压控制器评估模块 TPS53125EVM Texas Instruments 开发电路板/EVM
TPS53125 参考设计
说明 型号 公司
二相同步 降压,输入电压为 5V 或 12V。 多路输出电压:1.8V 和 3.3V PMP176 Texas Instruments
同步降压时,输入电压为 19.5V PMP070 Texas Instruments
同步降压,输入电压为 12V PMP217 Texas Instruments
热插拔、推挽、同步 降压、负反向、双路同步 降压参考设计 PMP156 Texas Instruments
集成 FET、正向、双路同步的同步降压 降压参考设计 PMP041 Texas Instruments