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TPS62404DRCR Datasheet(PDF) 1 Page - Texas Instruments |
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TPS62404DRCR Datasheet(HTML) 1 Page - Texas Instruments |
1 / 43 page 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 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 TPS62400, TPS62401 TPS62402, TPS62403, TPS62404 www.ti.com SLVS681E – JUNE 2006 – REVISED APRIL 2010 2.25MHz 400mA/600mA Dual Step-Down Converter In Small 3x3mm QFN Package Check for Samples: TPS62400, TPS62401, TPS62402, TPS62403, TPS62404 1 FEATURES DESCRIPTION 2 • High Efficiency—Up to 95% • VIN Range From 2.5 V to 6 V The TPS6240x device series are synchronous dual step-down DC-DC converters optimized for battery • 2.25 MHz Fixed Frequency Operation powered portable applications. They provide two • Output Current 400 mA and 600 mA independent output voltage rails powered by 1-cell • Adjustable Output Voltage From 0.6V to VIN Li-Ion or 3-cell NiMH/NiCD batteries. The devices are also suitable to operate from a standard 3.3V or 5V • Pin Selectable Output Voltage Supports voltage rail. Simple Dynamic Voltage Scaling With an input voltage range of 2.5V to 6V the • EasyScale™ Optional One-Pin Serial Interface TPS62400 is ideal to power portable applications like • Power Save Mode at Light Load Currents smart phones, PDAs and other portable equipment. • 180° Out of Phase Operation With the EasyScale™ serial interface the output • Output Voltage Accuracy in PWM Mode ±1% voltages can be modified during operation. The fixed • Typical 32-mA Quiescent Current for Both output voltage versions TPS62401, TPS62402, Converters TPS62403, and TPS62404 support one pin controlled simple Dynamic Voltage Scaling for low power • 100% Duty Cycle for Lowest Dropout processors. • Available in a 10-Pin QFN (3×3mm) The TPS6240x operates at 2.25MHz fixed switching frequency and enters the power save mode operation APPLICATIONS at light load currents to maintain high efficiency over • Cell Phones, Smart-phones the entire load current range. For low noise • PDAs, Pocket PCs applications the devices can be forced into fixed • OMAP™ and Low Power DSP Supply frequency PWM mode by pulling the MODE/DATA • Portable Media Players pin high. In the shutdown mode, the current consumption is reduced to 1.2mA, typical. The • Digital Radio devices allow the use of small inductors and • Digital Cameras capacitors to achieve a small solution size. The TPS62400 is available in a 10-pin leadless package (3×3mm QFN) 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 EasyScale, OMAP, PowerPAD are trademarks of Texas Instruments. PRODUCTION DATA information is current as of publication date. Copyright © 2006–2010, 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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