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TPS62220 采用小型 SOT-23 封装的可调节 400mA、95% 高效步降控制器，15uA

TPS62220 描述

The TPS6222x devices are a family of high-efficiency, synchronous step-down converters ideally suited for portable systems powered by 1-cell Li-Ion or 3-cell NiMH/NiCd batteries. The devices are also suitable to operate from a standard 3.3-V or 5-V voltage rail.

With an output voltage range of 6 V down to 0.7 V and up to 400-mA output current, the devices are ideal for powering the low voltage TMS320 DSP family and processors used in PDAs, pocket PCs, and smart phones. Under nominal load current, the devices operate with a fixed switching frequency of typically 1.25 MHz. At light load currents, the part enters the power-save mode operation; the switching frequency is reduced and the quiescent current is typically only 15 uA; therefore, the device achieves the highest efficiency over the entire load current range

TPS62220 TPS62221 TPS62222 TPS62223 TPS62224 TPS62225 TPS62227 TPS62228 TPS62229
Iout(Max)(A) 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4
Vin(Min)(V) 2.5 2.5 2.5 2.5 2.5 2.5 2.5 2.5 2.5
Vin(Max)(V) 6 6 6 6 6 6 6 6 6
Vout(Min)(V) 0.7 1.5 1.8 2.3 1.6 2.2 1.2 1.875 1.7
Vout(Max)(V) 6 1.5 1.8 2.3 1.6 2.2 1.2 1.875 1.7
Preset Vout(V) 1.5 1.8 2.3 1.6 2.2 1.2 1.875 1.7
Iq(Typ)(mA) 0.015 0.015 0.015 0.015 0.015 0.015 0.015 0.015 0.015
Switching Frequency(Max)(kHz) 1850 1850 1850 1850 1850 1850 1850 1850 1850
Switch Current Limit(Typ)(A) 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88
Topology Buck Buck Buck Buck Buck Buck Buck Buck Buck
Operating Temperature Range(°C) -40 to 85 -40 to 85 -40 to 85 -40 to 85 -40 to 85 -40 to 85 -40 to 85 -40 to 85 -40 to 85
Pin/Package 5SOT 5SOT 5SOT 5SOT 5SOT 5SOT 5SOT 5SOT 5SOT
Rating Catalog Catalog Catalog Catalog Catalog Catalog Catalog Catalog Catalog
Duty Cycle(Max)(%) 100 100 100 100 100 100 100 100 100
Regulated Outputs(#) 1 1 1 1 1 1 1 1 1
TPS62220 特性
TPS62220 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
TPS62220DDCR ACTIVE -40 to 85 0.95 | 1ku SOT (DDC) | 5 3000 | LARGE T&R ALN
TPS62220DDCRG4 ACTIVE -40 to 85 0.95 | 1ku SOT (DDC) | 5 3000 | LARGE T&R ALN
TPS62220DDCT ACTIVE -40 to 85 1.05 | 1ku SOT (DDC) | 5 250 | SMALL T&R ALN
TPS62220DDCTG4 ACTIVE -40 to 85 1.05 | 1ku SOT (DDC) | 5 250 | SMALL T&R ALN
TPS62220 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
TPS62220DDCR Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM   TPS62220DDCR
TPS62220DDCRG4 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM TPS62220DDCRG4 TPS62220DDCRG4
TPS62220DDCT Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM   TPS62220DDCT
TPS62220DDCTG4 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM TPS62220DDCTG4 TPS62220DDCTG4
TPS62220 应用技术支持与电子电路设计开发资源下载
  1. TPS62220 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)
TPS62220 相关工具
名称 型号 公司 工具/软件类型
TPS62220 评估模块 TPS62220EVM-014 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
TPS62220 参考设计
说明 型号 公司
LDO、降压/升压、2 相同步降压、同步升压参考设计 PR038 Texas Instruments
以太网电源 - 同步反向参考设计 PMP386 Texas Instruments
同步 降压，两个输入电压 4.5-5.5V 的升压 多输出电压 3.3V、5V 和 12V PMP146 Texas Instruments
降压/升压参考设计 PMP379 Texas Instruments