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TPS62510DRCRG4 Fiches technique(PDF) 1 Page - Texas Instruments |
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TPS62510DRCRG4 Fiches technique(HTML) 1 Page - Texas Instruments |
1 / 24 page www.ti.com FEATURES DESCRIPTION APPLICATIONS VI 1.8 V to 3.8 V TPS62510 PGND L1 2.2 H m C2 22 F m C3 22 pF R1 300 kW R2 200 kW Cf 100 nF Rf 1 W VO 1.5 V to 1.5 A C1 22 F m SW FB PG AGND PVIN 7 AVIN EN OVT MODE 10 5 6 8 9 2 1 4 3 95 50 90 80 70 60 85 75 65 55 0.01 0.1 1 10 10 k 100 I - Load Current- mA L 1 k V = 1.2 V O V = 1.9 V (Mode Low) I V = 3.2 V (Mode High) I V = 2.4 V (Mode High) I V = 1.9 V (Mode High) I V = 2.4 V (Mode Low) I V = 3.2 V (Mode Low) I TPS62510 SLVS651 – MAY 2006 1.5-A, LOW V I HIGH EFFICIENCY STEP-DOWN CONVERTER • 1.8-V to 3.8-V Input Voltage Range The TPS62510 family are high-efficiency step-down converters targeted for operation from a 1.8-V to • Up to 96% High Efficiency Synchronous 3.8-V input voltage rail, ideally suited for 2-cell Step-Down Converter Alkaline or NiMHd applications. The TPS62510 is • 1.5-MHz Fixed Frequency PWM Operation also ideal as a point-of-load regulator running from a • 1% Output Voltage Accuracy in Fixed fixed 3.3-V, 2.5-V or 1.8-V input voltage rail. The Frequency PWM Mode converter operates in fixed frequency PWM mode switching at 1.5 MHz with the MODE pin high. • Power Save Mode Operation for High Pulling the MODE pin low enables the high efficiency Efficiency Over the Entire Load Current mode. In high efficiency mode, the device operates Range with a 1.5 MHz fixed frequency PWM at nominal load • 22- µA Quiescent Current current, and automatically enters the Power Save • Fixed and Adjustable Output Voltage Mode at light load currents. For maximum system reliability, the converter features Output Voltage • Output Voltage Tracking (OVT) for Reliable Tracking using the OVT pin to allow sequencing, and Sequencing to allow for the output voltage to track an external • Available in a 10-Pin QFN (3 x 3 mm) Package voltage applied to this pin. • Portable Devices (Mobile Phone, PDA) • 2-Cell NiMHd/Alkaline Applications • Hard Disc Drives • Point-Of-Load Regulation • Notebook Computers • WiMAX and WLAN Applications Figure 1. Typical Application Figure 2. Efficiency vs Load Current 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. PowerPAD is a trademark of Texas Instruments. PRODUCTION DATA information is current as of publication date. Copyright © 2006, 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. |
Numéro de pièce similaire - TPS62510DRCRG4 |
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Description similaire - TPS62510DRCRG4 |
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