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TPS62650YFF Datasheet(PDF) 1 Page - Texas Instruments |
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TPS62650YFF Datasheet(HTML) 1 Page - Texas Instruments |
1 / 37 page CSP-9 1 FEATURES DESCRIPTION APPLICATIONS FB C2 4.7 F m L1 0.47 H m VIN TPS62650 2.3V..5.5V SW GND EN VSEL SDA SCL upto3.4Mbips VO C1 VI VO =Roof VO =Floor I2C Bus 4.7 F m 10 20 30 40 50 60 70 80 90 100 0.1 1 10 100 1000 IO − − LoadCurrent mA 0 V =3.6V ForcedPWMOperation I V =4.2V PFM/PWMOperation I V =3.6V PFM/PWMOperation I V =2.7V PFM/PWMOperation I VO =1.2V TPS62650 TPS62651 www.ti.com................................................................................................................................................................................................. SLVS808 – AUGUST 2009 800-mA, 6-MHz HIGH-EFFICIENCY STEP-DOWN CONVERTER WITH I2CTM COMPATIBLE INTERFACE IN CHIP SCALE PACKAGING 2 • 86% Efficiency at 6 MHz Operation • 38µA Quiescent Current The TPS6265x device is a high-frequency • Wide V IN Range From 2.3 V to 5.5 V synchronous step-down dc-dc converter optimized for • 6MHz Regulated Frequency Operation battery-powered portable applications. Intended for low-power applications, the TPS6265x supports up to • Best-In-Class Load and Line Transient 800mA load current and allows the use of small, low • ±2% PWM DC Voltage Accuracy cost inductors and capacitors. • Automatic PFM/PWM Mode Switching The device is ideal for mobile phones and similar • Low Ripple Light-Load PFM portable applications powered by a single-cell Li-Ion • I2C Compatible Interface up to 3.4 Mbps battery. With an output voltage range adjustable via I2C interface down to 0.75V, the device supports • Pin-Selectable Output Voltage (VSEL) low-voltage DSPs and processors core power • Internal Soft-Start, <150-µs Start-Up Time supplies in smart-phones and handheld computers. • Current Overload and Thermal Shutdown The TPS6265x operates at a regulated 6MHz Protection switching frequency and enters the efficiency • Three Surface-Mount External Components optimized power-save mode operation at light load Required (One MLCC Inductor, Two Ceramic currents to maintain high efficiency over the entire Capacitors) load current range. In the shutdown mode, the current consumption is reduced to less than 3.5 µA. • Complete Sub 1-mm Component Profile Solution The serial interface is compatible with Standard, • Total Solution Size <13mm2 Fast/Fast Plus and High-Speed mode I2C specification allowing transfers at up to 3.4 Mbps. • Available in a 9-Pin NanoFree™ (CSP) This communication interface is used for dynamic Packaging voltage scaling with voltage steps down to 12.5mV, for setting the output voltage or reprogramming the mode of operation (PFM/PWM or Forced PWM) for • SmartReflex™ Compliant Power Supply instance. • OMAP™ Application Processor Core Supply The TPS6265x is available in an 9-pin chip-scale • Cell Phones, Smart-Phones package (CSP). • Micro DC-DC Converter Modules Figure 1. Typical Application Figure 2. Efficiency vs Load Control 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 are trademarks of Texas Instruments. PRODUCTION DATA information is current as of publication date. Copyright © 2009, 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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