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TPS62120DCNR Datasheet(PDF) 1 Page - Texas Instruments |
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TPS62120DCNR Datasheet(HTML) 1 Page - Texas Instruments |
1 / 33 page VIN EN FB TPS62120 PG L 22 H m SW GND SGND VOUT R pullup100kW PWRGOOD V =2.5Vto15V IN C 4.7 F IN m R 300k 1 W R 240k 2 W Cff 22pF V =1.8V upto75mA OUT C 4.7 F OUT m 0.1 1 10 100 I -OutputCurrent-mA O 30 40 50 60 70 80 90 100 V =5.5V IN V =8V IN V =10V IN V =12V IN V =15V IN V =5V, L =18 H, LPS3015, C =4.7 F O O m m TPS62120 TPS62122 www.ti.com SLVSAD5 – JULY 2010 15V, 75mA High Efficient Buck Converter Check for Samples: TPS62120 , TPS62122 1 FEATURES DESCRIPTION • Wide Input Voltage Range 2V to 15V • Up to 96% Efficiency The TPS6212X device family is a high efficient synchronous step down DC-DC converter optimized • Power Save Mode with 11 µA Quiescent for low power applications. It supports up to 75mA Current output current and allows the use of tiny external • Output Current 75mA inductors and capacitors. • Output Voltage Range 1.2V to 5.5V The wide operating input voltage range of 2V to 15V • Up to 800kHz Switch Frequency supports energy harvesting, battery powered and as well 9V or 12V line powered applications. • Synchronous Converter, no External Rectifier • Low Output Ripple Voltage With its advanced hysteretic control scheme the converter provides power save mode operation. At • 100% Duty Cycle for Lowest Dropout light loads the converter operates in PFM mode • Small SOT 8 pin (TPS62120) and 2x2 SON 6 (pulse frequency modulation) and transitions pin (TPS62122) Package automatically in PWM (pulse width modulation) mode • Internal Soft Start at higher load currents. The Power Save Mode maintains high efficiency over the entire load current • Power Good Open Drain Output TPS62120 range. The hysteretic control scheme is optimized for • Open Drain Output for Output Discharge low output ripple voltage in PFM mode in order to TPS62120 reduce output noise to a minimum. It consumes only • 2.5V Rising / 1.85V Falling UVLO Thresholds 10uA quiescent current from VIN in PFM mode operation. APPLICATIONS In shutdown mode, the device is turned off. • Low Power RF Applications An open drain power good output is available in the • Ultra Low Power Microprocessor TPS62120 and indicates once the output voltage is in • Energy Harvesting regulation. • Industrial Measuring TPS62120 has an additional SGND pin which is connected to GND during shutdown mode. This output can be used to discharge the output capacitor. The TPS62120 is available in a small 3×3 mm2 8 pin SOT 23 package and the TPS62122 in a 2×2 mm2 6 pin SON package. 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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