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TI TPS22995RZFR
Configuration
1 options
Configuration
25+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- TI(Texas Instruments) TPS22995RZFR
- Type
- TI
- Minimum package
- 3000
Technical parameters
- Electronic Component
- TI(Texas Instruments)
- Electronic Component
- TPS22995RZFR
- Electronic Component
- 1
- Package
- WQFN-6(1.3x0.9)
- Type
- Load Switch
- Electronic Component
- Power Electronic Switch
- Electronic Component
- 0.012g
- Electronic Component
- 1
- Channel Count
- 1
- Features
- Output
- Electronic Component
- BM0257375735
- Resistor
- 18mΩ
- Operating Temperature
- 40℃~+125℃
- Operating Voltage
- 400mV~5.5V
- Current
- 3.8A
- Electronic Component
- 3000
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
TPS22995RZFR 产品概述
一 功能概述
TPS22995RZFR 是德州仪器（TI）推出的一款单通道低压降负载开关，采用 WQFN-6（1.3 × 0.9 mm）小尺寸封装，输入控制为高电平有效。器件内置过热保护（OTP），适用于对体积和功耗敏感的便携式与嵌入式电源管理场景，用于实现电源通断控制与负载隔离。
二 关键参数
- 类型：负载开关，通道数：1
- 控制逻辑：EN 高电平有效
- 工作电压范围：0.4 V ～ 5.5 V
- 最大连续电流：3.8 A
- 导通电阻 Rds(on)：18 mΩ（typ.）
- 工作温度范围：-40 ℃ ～ +125 ℃
- 保护特性：过热保护（OTP）
- 封装：WQFN-6（1.3 × 0.9 mm）
三 优势与设计要点
- 极低的导通电阻（18 mΩ）带来低功耗与低压降，便于在高电流负载下保持较小功率损耗（举例：3.8 A 时 Ploss ≈ 0.26 W）。
- 宽电压工作范围支持多种供电轨（从低压数字核到 5 V 外设）。
- 尺寸小、集成度高，适合空间受限的系统。
- 内置过热保护在异常温升时切断导通，提升系统可靠性；在板级设计中应预留热量余量并做好散热设计。
四 布局与散热建议
- 关键走线（VIN、VOUT）尽量短且宽，减小电阻与热阻。
- 在封装底部露铜焊盘（exposed pad）处提供充足的焊盘和热通孔，以利于导热到 PCB 大面积地/电源层。
- VIN 与 VOUT 端各加高品质去耦电容，靠近器件引脚放置以抑制瞬态电流。
- 在高电流应用中考虑留有热裕量并做必要的热仿真，按实际工况选择是否降额使用。
五 典型应用
- USB/外设电源开关、端口供电保护
- 电源管理与电源顺序控制（PMIC 辅助）
- 电池供电设备中的负载断开与节能管理
- 工业与物联网终端的局部电源隔离
总结：TPS22995RZFR 以其低 Rds(on)、较高电流能力和小封装，适合需要紧凑布板与高效能量传输的负载开关场合。设计时应结合实际电流、热量与 PCB 散热策略进行验证与优化。
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