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TPS62400 Datasheet(PDF) 1 Page - Texas Instruments |
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TPS62400 Datasheet(HTML) 1 Page - Texas Instruments |
1 / 39 page www.ti.com FEATURES DESCRIPTION APPLICATIONS 0 10 20 30 40 50 60 70 80 90 100 0.01 0.1 1 10 100 1000 IOUTmA VIN =3.6V MODE/DATA =0 VOUT1=1.575V VOUT2 =1.8V V :1.575V 400mA out1 SW1 FB1 SW2 ADJ2 DEF_1 10 F m VIN2.5V – 6V VIN EN_1 EN_2 MODE/ DATA TPS62401 GND 2.2 H m 10 F m 2.2 H m V :1.8V 600mA out2 10 F m TPS62400 ,, TPS62401 TPS62403 SLVS681C – JUNE 2006 – REVISED DECEMBER 2006 2.25MHz 400mA/600mA Dual Step-Down Converter In Small 3x3mm QFN Package • High Efficiency—Up to 95% The TPS6240x device series are synchronous dual step-down DC-DC converters optimized for battery • V IN Range From 2.5 V to 6 V powered portable applications. They provide two • 2.25 MHz Fixed Frequency Operation independent output voltage rails powered by 1-cell • Output Current 400 mA and 600 mA Li-Ion or 3-cell NiMH/NiCD batteries. The devices are • Adjustable Output Voltage From 0.6V to V IN also suitable to operate from a standard 3.3V or 5V voltage rail. • EasyScale™ Optional One-Pin Serial Interface for Dynamic Output Voltage Adjustment With an input voltage range of 2.5V to 6V the TPS62400 is ideal to power portable applications like • TPS62401, TPS62403 Fixed Output Voltage smart phones, PDAs and other portable equipment. Options With the EasyScale™ serial interface the output • Power Save Mode at Light Load Currents voltages can be modified during operation. The fixed • 180° Out of Phase Operation output voltage versions TPS62401 and TPS62403 • Output Voltage Accuracy in PWM Mode ±1% support one pin controlled simple Dynamic Voltage • Typical 32-µA Quiescent Current for both Scaling for low power processors. Converters The TPS6240x operates at 2.25MHz fixed switching • 100% Duty Cycle for Lowest Dropout frequency and enters the power save mode operation at light load currents to maintain high • One Pin Simple Dynamic Voltage Scaling efficiency over the entire load current range. For low • Available in a 10-Pin QFN (3×3mm) noise applications the devices can be forced into fixed frequency PWM mode by pulling the MODE/DATA pin high. In the shutdown mode, the • Cell Phones, Smart-phones current consumption is reduced to 1.2 µA, typical. The devices allow the use of small inductors and • PDAs, Pocket PCs capacitors to achieve a small solution size. • OMAP™ and Low Power DSP Supply • Portable Media Players The TPS62400 is available in a 10-pin leadless package (3 ×3mm QFN) • Digital Radio • Digital Cameras 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. EasyScale, OMAP, PowerPAD are trademarks 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. |
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