Integrated P-Channel Load Switch
Low Input Voltage: 1 V to 3.6 V
ON-Resistance (Typical Values)
- r_ON = 78 mΩ at V_IN = 3.6 V
- r_ON = 93 mΩ at V_IN = 2.5 V
- r_ON = 109 mΩ at V_IN = 1.8 V
- r_ON = 146 mΩ at V_IN = 1.2 V
500 mA Maximum Continuous Switch Current
Quiescent Current: 82 nA at 1.8 V
Shutdown Current: 44 nA at 1.8 V
Low Control Input Thresholds Enable Use of 1.2-V, 1.8-V, 2.5-V, and 3.3-V Logic
Controlled Slew Rate to Avoid Inrush Currents
- t_r = 40 µs at V_IN = 1.8 V (TPS22901/2)
- t_r = 220 µs at V_IN = 1.8 V (TPS22902B)
Quick Output Discharge (TPS22902/2B)
ESD Performance Tested Per JESD 22
- 2000-V Human Body Model (A114-B, Class II)
- 1000-V Charged-Device Model (C101)
Four-Pin Wafer-Chip-Scale DSBGA Package
- 0.8-mm × 0.8-mm, 0.4-mm Pitch, 0.5-mm Height (YFP)

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The TPS22901, TPS22902, and TPS22902B are small, low ON-resistance (r_ON) load switches with a controlled turnon. These devices contain a P-channel MOSFET that operates over an input voltage range of 1.0 V to 3.6 V. The switch is controlled by an on/off input (ON), which can interface directly with low-voltage control signals. In the TPS22902 and TPS22902B, an 88-Ω on-chip load resistor is added for output quick discharge when the switch is turned off.

The TPS22901, TPS22902, and TPS22902B are available in a space-saving 4-pin DSBGA (YFP) with 0.4-mm pitch. These devices are characterized for operation over the free-air temperature range of –40°C to 85°C.

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Technical documentation

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	Type	Title	Date
*	Data sheet	TPS2290x Ultra-Small, Low Input Voltage, Low rON, Load Switch datasheet (Rev. E)	Sep. 24, 2020
	Application note	Load Switch Thermal Considerations (Rev. A)	Oct. 11, 2018
	Application note	Basics of Load Switches (Rev. A)	Sep. 05, 2018
	Selection guide	Power Management Guide 2018 (Rev. R)	Jun. 25, 2018
	Technical article	How can a load switch extend your device’s battery life?	Mar. 20, 2018
	Technical article	How and why you should use load switches for power sequencing	Feb. 06, 2018
	Technical article	How to use load switches and eFuses in your set-top box design	Nov. 23, 2017
	Application note	Selecting a Load Switch to Replace a Discrete Solution	Apr. 30, 2017
	Application note	Timing of Load Switches	Apr. 27, 2017
	Technical article	Don’t leave it floating! Power off your outputs with quick output discharge	Dec. 09, 2016
	Application note	Managing Inrush Current (Rev. A)	May 28, 2015
	User guide	TPS22901/02/02B Evaluation Module (Rev. A)	Mar. 27, 2009

Design & development

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Hardware development

EVALUATION BOARD Download

TPS22901 Load Switch Evaluation Module

TPS22901EVM

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User guide

Description

The TPS22901/02/02B evaluation module (EVM) is a fully assembled and tested circuit for evaluating the TPS22901/02/02B load switch. This EVM operates over a 1 V to 3.6 V range and provides a continuous output current of up to 110 mA. Additional open resistor and capacitor footprints allow for the (...)

Features

Input voltage range: 1 V to 3.6 V
500 mA max output current
Access to VIN, VOUT, and ON
Jumpers to select input capacitance, output capacitance and output resistance

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Design tools & simulation

SIMULATION MODEL Download

TPS22901 Unencrypted PSpice Transient Model Package (Rev. A)

SLVM834A.ZIP (37 KB) - PSpice Model

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SIMULATION TOOL Download

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 (...)

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Features

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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Reference designs

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Xilinx Kintex UltraScale XCKU040 FPGA Power Solution, 6W Reference Design

PMP10630 — The PMP10630 reference design is a complete high density power solution for Xilinx® Kintex® UltraScale™ XCKU040 FPGA. This design uses an optimal combination of SIMPLE SWITCHER® modules and LDOs to provide all the necessary voltage rails in a small solution size of 36 x 43 mm (1.4 (...)

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REFERENCE DESIGNS Download

RF Sensor Node Development Platform for 6LoWPAN and 2.4 GHz Applications

TIDM-RF-SENSORNODE — The RF Sensor Node Platform is intended as a miniature development platform for 6LoWPAN and 2.4 GHz applications. The platform has three on-board sensors which includes a 3-axis accelerometer, a temperature sensor and two light sensors. The RF Sensor Node Platform can be a stand-alone sensor node or (...)

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