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TPS62242 Datasheet(PDF) 1 Page - Texas Instruments |
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TPS62242 Datasheet(HTML) 1 Page - Texas Instruments |
1 / 29 page 1 FEATURES DESCRIPTION APPLICATIONS VIN GND EN FB SW TPS62243DRV L1 2.2µH CIN 4.7µF COUT 10µF VOUT 1.8V Upto300mA MODE VIN 2.0V to 6V 0 10 20 30 40 50 60 70 80 90 100 0.01 0.1 1 10 100 1000 I -OutputCurrent-mA O V =2V I V =4.5 I V =3.6 I V =4.5 I V =3V I V =2.7 I V =2V I V =1.8V, MODE=GND, L =2.2 H, DCR110m O m TPS62240, TPS62242, TPS62243 SLVS762B – JUNE 2007 – REVISED SEPTEMBER 2007 www.ti.com 2.25 MHz 300 mA Step Down Converter in 2x2SON/TSOT23 Package 23 • High Efficiency Step Down Converter • Output Current up to 300 mA The TPS62240 device is a high efficiency synchronous step down dc-dc converter optimized for • V IN Range From 2 V to 6 V for Li-Ion Batteries battery powered portable applications. It provides up With Extended Voltage Range to 300 mA output current from a single Li-Ion cell and • 2.25 MHz Fixed Frequency Operation is ideal to power portable applications like mobile • Power Save Mode at Light Load Currents phones and other portable equipment.. • Output Voltage Accuracy in PWM Mode ±1.5% With an input voltage range of 2 V to 6 V, the device supports applications powered by Li-Ion batteries with • Adjustable Output Voltage from 0.6 V to V IN extended voltage range, two- and three-cell alkaline, • Typical 15 µA Quiescent Current 3.3-V and 5-V input voltage rails. • 100% Duty Cycle for Lowest Dropout The TPS62240 operates at 2.25 MHz fixed switching • Available in a TSOT23 and 2×2×0,8 mm SON frequency and enters Power Save Mode operation at • Allows < 1 mm Solution Height light load currents to maintain high efficiency over the entire load current range. The Power Save Mode is optimized for low output • Bluetooth™ Headset voltage ripple. For low noise applications, the device • Cell Phones, Smart-phones can be forced into fixed frequency PWM mode by pulling the MODE pin high. In the shutdown mode, • WLAN the current consumption is reduced to less than 1 µA. • PDAs, Pocket PCs TPS62240 allows the use of small inductors and • Low Power DSP Supply capacitors to achieve a small solution size. • Portable Media Players The TPS62240 is available in a 5-pin TSOT23 and • Digital Cameras 6-pin 2mm ×2mm SON package. 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. 2 PowerPAD is a trademark of Texas Instruments. 3 Bluetooth is a trademark of Bluetooth SIG, Inc.. PRODUCTION DATA information is current as of publication date. Copyright © 2007, 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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