Product details


Number of channels (#) 2 Vin (Min) (V) 2.8 Vin (Max) (V) 19.8 Imax (A) 0.5 Quiescent current (Iq) (Typ) (uA) 250 Soft start Fixed Rise Time Rise time (Typ) (us) 2000 Features Inrush current control, Reverse current protection Operating temperature range (C) -40 to 85 open-in-new Find other Load switches

Package | Pins | Size

DSBGA (YFP) 16 0 mm² 1.616 x 1.616 open-in-new Find other Load switches


  • 2.8 V to 19.8 V Input
  • Auto Selects 3.3 V supply
  • >10mA Low Power Switch
  • >500mA High Power Switch
  • Reverse Current Blocking from OUT to VDD
  • Wake on UART Input Activity
  • UART RX and TX Buffers
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The TPS22986 is a supply selection device for active Thunderbolt™ cables. The device selects a 3.3V input from two available supplies and connects the chosen input to two outputs, OUTA and OUTB. When a 3.3V supply is not present, the outputs become high impedance.

The TPS22986 has two modes of operation, Normal and Control. In Normal Mode, OUTA is always on when a valid supply is present. OUTB is connected to a valid supply when the ENB input is high.

In Control Mode, OUTA behaves the same as Normal Mode and OUTB is controlled by a combination of monitored inputs and valid supplies on VDD1 and VDD2. When a valid VDD is available, the device waits for a rising input on ENB and then disconnects OUTB until the next falling RXH transition. Once the next falling RXH transition occurs, the device reconnects OUTB.

In either mode, when a valid VDD is not available, the TPS22986 opens all switches and the outputs OUTA and OUTB become high impedance. When the connected VDD exceeds 3.6V, it is disconnected from the outputs.

The TPS22986 is available in a 1.6mm x 1.6mm WCSP package.

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Technical documentation

= Top documentation for this product selected by TI
No results found. Please clear your search and try again. View all 10
Type Title Date
* Datasheet Thunderbolt Supply Selection IC, TPS22986 datasheet (Rev. A) Dec. 18, 2013
Application notes Load Switch Thermal Considerations (Rev. A) Oct. 11, 2018
Technical articles How can a load switch extend your device’s battery life? Mar. 20, 2018
Technical articles How and why you should use load switches for power sequencing Feb. 06, 2018
Technical articles How to use load switches and eFuses in your set-top box design Nov. 23, 2017
Application notes Selecting a Load Switch to Replace a Discrete Solution Apr. 30, 2017
Application notes Timing of Load Switches Apr. 27, 2017
Technical articles Don’t leave it floating! Power off your outputs with quick output discharge Dec. 09, 2016
Application notes Managing Inrush Current (Rev. A) May 28, 2015
User guides TPS22986EVM User’s Guide Jan. 09, 2013

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Hardware development

document-generic User guide

The Texas Instruments TPS22986EVM evaluation module (EVM) helps designers evaluate the performance of the TPS22986 Supply Selection IC. The TPS22986 selects a 3.3V input from two available supplies and connects the chosen input to two outputs, OUTA and OUTB. If a 3.3V supply is not present, the (...)

  • 2.8 V to 19.8 V
  • Auto Selects 3.3 V Supply
  • 10-mA Low Power Switch
  • 500-mA High Power Switch
  • Reverse Current Blocking From OUT to VDD

Design tools & simulation

SLVM764.ZIP (13 KB) - HSpice Model
SLVM797.TSC (309 KB) - TINA-TI Reference Design
SLVM798.ZIP (37 KB) - TINA-TI Spice Model
SLVM802.ZIP (41 KB) - IBIS Model
SLVMCY0A.ZIP (20 KB) - PSpice Model
PSpice® for TI design and simulation tool
PSPICE-FOR-TI — 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 (...)
  • Leverages Cadence PSpice Technology
  • Preinstalled library with a suite of digital models to enable worst-case timing analysis
  • Dynamic updates ensure you have access to most current device models
  • Optimized for simulation speed without loss of accuracy
  • Supports simultaneous analysis of multiple products
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CAD/CAE symbols

Package Pins Download
DSBGA (YFP) 16 View options

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