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TPS62111RSAT Datasheet(PDF) 1 Page - Texas Instruments |
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TPS62111RSAT Datasheet(HTML) 1 Page - Texas Instruments |
1 / 28 page 1 FEATURES DESCRIPTION APPLICATIONS TYPICAL APPLICATION SYNC GND PGND SW V O =3.3V 6.8 H m C =22 F 6.3V O m VIN LBI C =10 F 25V I m 1 F m V =3.8Vto17V I VIN EN VINA PGND GND PwPD AGND TPS62111 SW LBO PG 1MW FB TPS62111 EfficiencyvsOutputCurrent 100 0 90 70 40 20 80 50 60 30 10 0.0001 0.001 0.01 0.1 10 1 I -OutputCurrent- A O 5V 4.2V 12V 8.4V V =3.3V T PFMMode O A =25 C o TPS62110, TPS62111 TPS62112, TPS62113 www.ti.com .................................................................................................................................................... SLVS585A – JULY 2005 – REVISED FEBRUARY 2009 17-V, 1.5-A, SYNCHRONOUS STEP-DOWN CONVERTER • High-Efficiency Synchronous Step-Down The TPS6211x devices are a family of low-noise Converter With up to 95% Efficiency synchronous step-down dc-dc converters that are ideally suited for systems powered from a 2-cell Li-ion • 3.1-V to 17-V Operating Input Voltage Range battery or from a 12-V or 15-V rail. • Adjustable Output Voltage Range From The TPS6211x is a synchronous PWM converter with 1.2 V to 16 V integrated N- and P-channel power MOSFET • Fixed Output Voltage Options Available in switches. Synchronous rectification is used to 3.3 V and 5 V increase efficiency and to reduce external component • Synchronizable to External Clock Signal up to count. To achieve highest efficiency over a wide 1.4 MHz load-current range, the converter enters a power-saving, pulse-frequency modulation (PFM) • Up to 1.5-A Output Current mode at light load currents. Operating frequency is • High Efficiency Over a Wide Load-Current typically 1 MHz, allowing the use of small inductor Range Due to PFM/PWM Operation Mode and capacitor values. The device can be • 100% Maximum Duty Cycle for Lowest synchronized to an external clock signal in the range Dropout of 0.8 MHz to 1.4 MHz. For low-noise operation, the converter can be operated in PWM-only mode. In the • 20-µA Quiescent Current (Typical) shutdown mode, the current consumption is reduced • Overtemperature and Overcurrent Protected to less than 2 µA. The TPS6211x is available in the • Available in 16-Pin QFN Package 16-pin (RSA) QFN package, and operates over a free-air temperature range of –40°C to 85°C. • Point-of-Load Regulation From 12-V Bus • Organizers, PDAs, and Handheld PCs • Handheld Scanners 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 © 2005–2009, 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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