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TPS62354YZG Datasheet(PDF) 1 Page - Texas Instruments |
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TPS62354YZG Datasheet(HTML) 1 Page - Texas Instruments |
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1 / 46 page  QFN-10 CSP-12 1 FEATURES DESCRIPTION APPLICATIONS FB C2 10 F m A L1 1 H m PVIN TPS62350YZG 2.7V..5.5V SW AVIN PGND PGND A EN VSEL SDA SCL SYNC upto3.4Mbips 10 20 30 40 50 60 70 80 90 100 0.1 1 10 100 1000 IO − OutputCurrent − mA VO C1 VI VO =Roof VO =Floor TYPICAL APPLICATION 0 EFFICIENCY vsLOADCURRENT I2C Bus AGND V =3.6V V =1.35V LPFM/PWMMode I O TPS62350, TPS62351 TPS62352, TPS62353 TPS62354, TPS62355, TPS62356 www.ti.com .............................................................................................................................................................. SLVS540E – MAY 2006 – REVISED APRIL 2008 800-mA / 1000-mA, 3-MHz SYNCHRONOUS STEP-DOWN CONVERTER WITH I2C™ COMPATIBLE INTERFACE IN CHIP SCALE PACKAGING 234 • 88% Efficiency at 3-MHz Operation • 800-mA Output Current at V I = 2.7 V The TPS6235x device is a high-frequency synchronous step-down dc-dc converter optimized for • 3-MHz Fixed Frequency Operation battery-powered portable applications. Intended for • Best in Class Load and Line Transient low-power applications, the TPS6235x supports up to • Complete 1-mm Component Profile Solution 800-mA load current and allows the use of small, low cost inductors and capacitors. • ±2% PWM DC Voltage Accuracy • 35-ns Minimum On-Time The device is ideal for mobile phones and similar portable applications powered by a single-cell Li-Ion • Efficiency Optimized Power-Save Mode battery. With an output voltage range adjustable via (Light PFM) I2C interface down to 0.6 V, the device supports • Transient Optimized Power-Save Mode low-voltage DSPs and processors core power (Fast PFM) supplies in smart-phones, PDAs, and handheld computers. • 28-µA Typical Quiescent Current The TPS6235x operates at 3-MHz fixed switching • I2C Compatible Interface up to 3.4 Mbps frequency and enters the efficiency optimized • Pin-Selectable Output Voltage power-save mode operation at light load currents to • Synchronizable On the Fly to External maintain high efficiency over the entire load current Clock Signal range. In the shutdown mode, the current consumption is reduced to less than 2 µA. • Available in a 10-Pin QFN (3 x 3 mm) and 12-Pin NanoFree™ (CSP) Packaging The serial interface is compatible with Fast/Standard and High-Speed mode I2C specification allowing transfers at up to 3.4 Mbps. This communication interface is used for dynamic voltage scaling with • SmartReflex™ Compliant Power Supply voltage steps down to 12.5 mV, for reprogramming • Split Supply DSPs and µP Solutions the mode of operation (Light PFM, Fast PFM or OMAP™, XSCALE™ Forced PWM) or disable/enabling the output voltage. • Cell Phones, Smart-Phones • PDAs, Pocket PCs • Digital Cameras • Micro DC-DC Converter Modules 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 NanoFree, SmartReflex, OMAP, PowerPAD are trademarks of Texas Instruments. 3 XSCALE is a trademark of Intel Corporation. 4 I2C is a trademark of Philips Corporation. PRODUCTION DATA information is current as of publication date. Copyright © 2006–2008, 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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