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TPS22924B Datasheet(PDF) 1 Page - Texas Instruments |
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TPS22924B Datasheet(HTML) 1 Page - Texas Instruments |
1 / 22 page ON OFF C = 1 F IN µ GND V IN C L GND R L C L V OUT SMPS GND LOAD TPS22924B TPS22924B www.ti.com SLVSAR3B – APRIL 2011 – REVISED JUNE 2013 ULTRA-SMALL, LOW-INPUT-VOLTAGE, LOW rON LOAD SWITCH Check for Samples: TPS22924B 1 FEATURES DESCRIPTION • Integrated Single Load Switch The TPS22924B is a small, ultra-low rON load switch • Input Voltage: 0.75 V to 3.6 V with controlled turn on. The device contains a N- • Ultra-Low ON Resistance channel MOSFET that can operate over an input voltage range of 0.75 V to 3.6 V. An integrated – rON = 18.3 mΩ at VIN = 3.6 V charge pump biases the NMOS switch to achieve a – rON = 18.5 mΩ at VIN = 2.5 V minimum switch ON resistance. The switch is – rON = 19.6 mΩ at VIN = 1.8 V controlled by an on/off input (ON), which is capable of interfacing directly with low-voltage control signals. – rON = 19.4 mΩ at VIN = 1.2 V – rON = 20.3 mΩ at VIN = 1.0 V A 1250- Ω on-chip load resistor is added for output quick discharge when the switch is turned off. The – rON = 22.7 mΩ at VIN = 0.75 V rise time of the device is internally controlled to avoid • Ultra Small CSP-6 package inrush current. The TPS22924B features a rise time 0.9 mm x 1.4 mm, 0.5-mm Pitch of 100 µs at 3.6 V. • 2-A Maximum Continuous Switch Current The TPS22924B is available in an ultra-small space- • Low Shutdown Current saving 6-pin CSP package and is characterized for • Low Threshold Control Input operation over the free-air temperature range of –40ºC to 85ºC. • Controlled Slew Rate to Avoid Inrush Currents • Quick Output Discharge Transistor Figure 1. TYPICAL APPLICATION • ESD Performance Tested Per JESD 22 – 5000-V Human-Body Model (A114-B, Class II) – 1000-V Charged-Device Model (C101) APPLICATIONS NOTE: SMPS = Switched-mode power supply • Battery Powered Equipment • Portable Industrial Equipment • Portable Medical Equipment • Portable Media Players • Point Of Sales Terminal • GPS Devices • Digital Cameras • Notebooks / Tablet PCs / eReaders • Smartphones Table 1. FEATURE LIST SLEW RATE QUICK MAXIMUM rON (TYP) (TYP) OUTPUT OUTPUT ENABLE AT 3.6 V AT 3.6 V DISCHARGE(1) CURRENT TPS22924B 18.3 m Ω 100 μs Yes 2 A Active high (1) This feature discharges the output of the switch to ground through a 1250- Ω resistor, preventing the output from floating. See the Output Pulldown section in Application Information. 1 Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet. PRODUCTION DATA information is current as of publication date. Copyright © 2011–2013, Texas Instruments Incorporated Products conform to specifications per the terms of the Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters. |
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