TPS22918

現行

具有可調整上升時間和可調整輸出放電的 5.5-V、2-A、52-mΩ 負載開關

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產品詳細資料

Number of channels 1 Vin (min) (V) 1 Vin (max) (V) 5.5 Imax (A) 2 Ron (typ) (mΩ) 52 Shutdown current (ISD) (typ) (µA) 0.5 Quiescent current (Iq) (typ) (µA) 8.7 Soft start Adjustable Rise Time Current limit type None Features Quick output discharge Rating Catalog Operating temperature range (°C) -40 to 105 FET Internal Device type Load switches Function Inrush current control
Number of channels 1 Vin (min) (V) 1 Vin (max) (V) 5.5 Imax (A) 2 Ron (typ) (mΩ) 52 Shutdown current (ISD) (typ) (µA) 0.5 Quiescent current (Iq) (typ) (µA) 8.7 Soft start Adjustable Rise Time Current limit type None Features Quick output discharge Rating Catalog Operating temperature range (°C) -40 to 105 FET Internal Device type Load switches Function Inrush current control
SOT-23 (DBV) 6 8.12 mm² 2.9 x 2.8
  • Integrated Single Channel Load Switch
  • Ambient Operating Temperature: –40°C to +105°C
  • Input Voltage Range: 1 V to 5.5 V
  • On-Resistance (RON)
    • RON = 52 mΩ (typical) at VIN = 5 V
    • RON = 53 mΩ (typical) at VIN = 3.3 V
  • 2-A Maximum Continuous Switch Current
  • Low Quiescent Current
    • 8.3 µA (typical) at VIN = 3.3 V
  • Low-Control Input-Threshold Enables Use of 1 V or Higher GPIO
  • Adjustable Quick-Output Discharge (QOD)
  • Configurable Rise Time With CT Pin
  • Small SOT23-6 Package (DBV)
    • 2.90-mm × 2.80-mm, 0.95-mm Pitch,
      1.45 mm Height (with leads)
  • ESD Performance Tested per JESD 22
    • ±2-kV HBM and ±1-kV CDM
  • Integrated Single Channel Load Switch
  • Ambient Operating Temperature: –40°C to +105°C
  • Input Voltage Range: 1 V to 5.5 V
  • On-Resistance (RON)
    • RON = 52 mΩ (typical) at VIN = 5 V
    • RON = 53 mΩ (typical) at VIN = 3.3 V
  • 2-A Maximum Continuous Switch Current
  • Low Quiescent Current
    • 8.3 µA (typical) at VIN = 3.3 V
  • Low-Control Input-Threshold Enables Use of 1 V or Higher GPIO
  • Adjustable Quick-Output Discharge (QOD)
  • Configurable Rise Time With CT Pin
  • Small SOT23-6 Package (DBV)
    • 2.90-mm × 2.80-mm, 0.95-mm Pitch,
      1.45 mm Height (with leads)
  • ESD Performance Tested per JESD 22
    • ±2-kV HBM and ±1-kV CDM

The TPS22918 is a single-channel load switch with configurable rise time and configurable quick output discharge. The device contains an N-channel MOSFET that can operate over an input voltage range of 1 V to 5.5 V and can support a maximum continuous current of 2 A. The switch is controlled by an on and off input, which is capable of interfacing directly with low-voltage control signals.

The configurable rise time of the device greatly reduces inrush current caused by large bulk load capacitances, thereby reducing or eliminating power supply droop. The TPS22918 features a configurable quick output discharge (QOD) pin, which controls the fall time of the device to allow design flexibility for power down and sequencing.

The TPS22918 is available in a small, leaded SOT-23 package (DBV) which allows visual inspection of solder joints. The device is characterized for operation over the free-air temperature range of –40°C to +105°C.

The TPS22918 is a single-channel load switch with configurable rise time and configurable quick output discharge. The device contains an N-channel MOSFET that can operate over an input voltage range of 1 V to 5.5 V and can support a maximum continuous current of 2 A. The switch is controlled by an on and off input, which is capable of interfacing directly with low-voltage control signals.

The configurable rise time of the device greatly reduces inrush current caused by large bulk load capacitances, thereby reducing or eliminating power supply droop. The TPS22918 features a configurable quick output discharge (QOD) pin, which controls the fall time of the device to allow design flexibility for power down and sequencing.

The TPS22918 is available in a small, leaded SOT-23 package (DBV) which allows visual inspection of solder joints. The device is characterized for operation over the free-air temperature range of –40°C to +105°C.

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技術文件

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類型 標題 日期
* Data sheet TPS22918 5.5-V, 2-A, 52-mΩ On-Resistance Load Switch datasheet (Rev. C) PDF | HTML 2017年 6月 14日
E-book 11 Ways to Protect Your Power Path 2019年 7月 3日
Application brief Making the Switch to an Integrated Load Switch 2019年 6月 11日
Application note Integrated Load Switches Versus Discrete MOSFETs (Rev. A) 2019年 5月 6日
Application note Basics of Power Switches (Rev. A) PDF | HTML 2019年 4月 26日
Application note Load Switch Thermal Considerations (Rev. A) 2018年 10月 11日
Application note Basics of Load Switches (Rev. A) 2018年 9月 5日
Technical article How and why you should use load switches for power sequencing PDF | HTML 2018年 2月 6日
Technical article How to use load switches and eFuses in your set-top box design PDF | HTML 2017年 11月 23日
Application note Selecting a Load Switch to Replace a Discrete Solution 2017年 4月 30日
Application note Timing of Load Switches 2017年 4月 27日
Technical article Don’t leave it floating! Power off your outputs with quick output discharge PDF | HTML 2016年 12月 9日
Application note Fundamentals of On-Resistance in Load Switches 2016年 6月 9日
Application note Quiescent Current vs Shutdown Current for Load Switch Power Consumption 2016年 3月 30日
EVM User's guide TPS22918 Load Switch Evaluation Module User's Guide 2016年 3月 15日
Technical article When to use load switches in place of discrete MOSFETs PDF | HTML 2016年 2月 3日
Application note Managing Inrush Current (Rev. A) 2015年 5月 28日

設計與開發

如需其他條款或必要資源,請按一下下方的任何標題以檢視詳細頁面 (如有)。

開發板

TPS22918EVM — TPS22918 5.5V、2A、52mΩ 導通電阻負載開關評估模組

The TPS22918 evaluation module (EVM) is a fully assembled and tested circuit for evaluating the TPS22918 load switch. The TPS22918EVM allows the user to apply different input voltages (1 V to 5.5 V) under different loading conditions (0 A to 2 A) to the TPS22918. Parameters such as the (...)

使用指南: PDF
模擬型號

TPS22918 Unencrypted PSpice Transient Model Package (Rev. A)

SLVMBI6A.ZIP (51 KB) - PSpice Model
模擬型號

TPS22918-Q1 TINA-TI Reference Design

SLVMBY8.TSC (130 KB) - TINA-TI Reference Design
模擬型號

TPS22918-Q1 TINA-TI Transient Spice Model

SLVMBY9.ZIP (23 KB) - TINA-TI Spice Model
模擬工具

PSPICE-FOR-TI — PSpice® for TI 設計與模擬工具

PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
參考設計

TIDA-01584 — 使用負載開關的電源定序參考設計

The TIDA-01584 reference design demonstrates various power sequencing configurations using load switches. By using integrated load switches, the timing of each voltage rail can be adjusted independently. Each voltage rail can be controlled without extensive processor intervention or external (...)
Design guide: PDF
電路圖: PDF
參考設計

TIDA-00818 — 行動銷售點 (mPOS) 電源參考設計

The TIDA-00818 is mobile point of sale (mPOS) reference design features a 1S1P Li-Ion battery architecture to reduce system size and cost. Integrated load switches are used to reduce standby power consumption and maximize battery life to enable the single-cell architecture. A USB Type-C charging (...)
Design guide: PDF
電路圖: PDF
參考設計

TIDA-01451 — 適用於機上盒的電源開關參考設計

The TIDA-01451 reference design’s functionality emulates the power distribution of Set Top Boxes. By using integrated load switches to control power rails, each rail can be turned on or off depending on the needs and wants of the user. Turning off rails that are not being used reduces power (...)
Design guide: PDF
電路圖: PDF
參考設計

TIDA-03026 — 具有 LED 和音效回饋的狀態指示參考設計

The TIDA-03026 reference design functionality emulates status indication subsystems in various end equipments. By putting multiple LED drivers in parallel, an array of RGB LEDs can be synchronized to blink, pulse, and breathe - enhancing customer experience. Audio feedback is also integrated (...)
Design guide: PDF
電路圖: PDF
封裝 針腳 CAD 符號、佔位空間與 3D 模型
SOT-23 (DBV) 6 Ultra Librarian

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  • MTBF/FIT 估算值
  • 材料內容
  • 認證摘要
  • 進行中持續性的可靠性監測
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  • 晶圓廠位置
  • 組裝地點

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