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TPS62400QDRCQ1 Datasheet(PDF) 1 Page - Texas Instruments |
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TPS62400QDRCQ1 Datasheet(HTML) 1 Page - Texas Instruments |
1 / 41 page 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 : 1.575 V 400 mA out1 SW1 FB 1 SW2 ADJ2 DEF_1 10 F m VIN 2.5 V – 6 V VIN EN_1 EN_2 MODE/ DATA TPS62404 GND 2.2 H m 10 F m 2.2 H m V : 3.3 V 600 mA out2 10 F m TPS62400-Q1, TPS62401-Q1 TPS62402-Q1, TPS62403-Q1 TPS62404-Q1 www.ti.com SLVSA67 – FEBRUARY 2010 2.25-MHz 400-mA/600-mA DUAL STEP-DOWN CONVERTER Check for Samples: TPS62404-Q1 1 FEATURES • Qualified for Automotive Applications • EasyScale™ Optional One-Pin Serial Interface • High Efficiency—Up to 95% • Power Save Mode at Light Load Currents • VIN Range From 2.5 V to 6 V • 180° Out of Phase Operation • 2.25-MHz Fixed Frequency Operation • Output Voltage Accuracy in PWM Mode ±1% • Output Current 400 mA and 600 mA • Typical 32-mA Quiescent Current for Both Converters • Adjustable Output Voltage From 0.6 V to VIN • 100% Duty Cycle for Lowest Dropout • Pin Selectable Output Voltage Supports Simple Dynamic Voltage Scaling • Available in a 10-Pin QFN (3mm×3mm) DESCRIPTION The TPS6240x device series are synchronous dual step-down DC-DC converters optimized for battery powered portable applications. They provide two independent output voltage rails powered by 1-cell Li-Ion or 3-cell NiMH/NiCD batteries. The devices are also suitable to operate from a standard 3.3-V or 5-V voltage rail. With the EasyScale™ serial interface the output voltages can be modified during operation. The fixed output voltage versions TPS62401, TPS62402, TPS62403, and TPS62404 support one pin controlled simple Dynamic Voltage Scaling for low power processors. The TPS6240x operates at 2.25-MHz fixed switching frequency and enters the power save mode operation at light load currents to maintain high efficiency over the entire load current range. For low noise applications the devices can be forced into fixed frequency PWM mode by pulling the MODE/DATA pin high. In the shutdown mode, the current consumption is reduced to 1.2-mA, typical. The devices allow the use of small inductors and capacitors to achieve a small solution size. The TPS62400 is available in a 10-pin leadless package (3mm×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. PRODUCTION DATA information is current as of publication date. Copyright © 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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