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TPS62741 Datasheet(PDF) 1 Page - Texas Instruments |
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TPS62741 Datasheet(HTML) 1 Page - Texas Instruments |
1 / 32 page New TPS62740 60 65 70 75 80 85 90 95 100 Output Current (mA) V = 3.6V V = 3.3V IN OUT Current DCS-Control topology TM 0.001 0.01 0.1 1 10 100 1000 TPS62740 extends light load efficiency range down to 10 A output current m GND L 2.2 H m VOUT VSEL3 SW PG VIN CTRL V 2.2V - 5.5V IN C 10 IN mF C 10 F OUT m TPS62740 VSEL4 VSEL1 LOAD VSEL2 EN Subsystem (Sensors) 2.1V Main rail Switched supply rail R pull up V CC V CC Product Folder Sample & Buy Technical Documents Tools & Software Support & Community TPS62740, TPS62742 SLVSB02B – NOVEMBER 2013 – REVISED JULY 2014 TPS6274x 360nA IQ Step Down Converter For Low Power Applications 1 Features 3 Description The TPS6274x is industry's first step down converter 1 • Input Voltage Range VIN from 2.2V to 5.5 featuring typ. 360nA quiescent current and operating • Typ. 360nA Quiescent Current with a tiny 2.2µH inductor and 10µF output capacitor. • Up to 90% Efficiency at 10µA Output Current This new DCS-Control™ based device extends the light load efficiency range below 10µA load currents. • Up to 300mA / 400mA Output Current TPS62740 supports output currents up to 300mA, (TPS62740/TPS62742) TPS62742 up to 400mA. The device operates from • RF Friendly DCS-Control TM rechargeable Li-Ion batteries, Li-primary battery • Up to 2 MHz Switching Frequency chemistries such as Li-SOCl2, Li-MnO2 and two or three cell alkaline batteries. The input voltage range • Low Output Ripple Voltage up to 5.5V allows also operation from a USB port and • 16 Selectable Output Voltages in 100mV Steps thin-film solar modules. The output voltage is user between 1.8V to 3.3V selectable by four VSEL pins within a range from • Automatic Transition to No Ripple 100% Mode 1.8V to 3.3V in 100mV steps. TPS6274x features low output ripple voltage and low noise with a small • Slew Rate Controlled Load Switch output capacitor. Once the battery voltage comes • Discharge Function on VOUT / LOAD close to the output voltage (close to 100% duty cycle) • Power Good Output the device enters no ripple 100% mode operation to • Optimized for Operation with a Tiny 2.2µH prevent an increase of output ripple voltage. The device then stops switching and the output is Inductor and 10µF COUT connected to the input voltage. The integrated slew • Total Solution Size <31mm2 rate controlled load switch provides typ. 0.6 Ω on- • Small 2 x 3 mm2 WSON Package resistance and can distribute the selected output voltage to a temporarily used sub-system. The 2 Applications TPS6274x is available in a small 12 pin 2 × 3mm2 WSON package and supports a total solutions size of • Bluetooth® Low Energy, RF4CE, Zigbee 31mm2. • Industrial Metering • Energy Harvesting Device Information(1) PART NUMBER PACKAGE BODY SIZE (NOM) TPS62740 WSON 3.00 mm × 2.00 mm TPS62742 (1) For all available packages, see the orderable addendum at the end of the datasheet. 4 Typical Application 1 An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications, intellectual property matters and other important disclaimers. PRODUCTION DATA. |
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