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REG71055DDCT Datasheet(PDF) 1 Page - Texas Instruments |
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REG71055DDCT Datasheet(HTML) 1 Page - Texas Instruments |
1 / 26 page 1 FEATURES DESCRIPTION APPLICATIONS C IN 2.2 F m C PUMP 0.22 F m 3.3Vto 4.2V C OUT 2.2 F m R LED GND Enable REG71050 REG710-5 LED LED R R REG710 www.ti.com........................................................................................................................................... SBAS221G – DECEMBER 2001 – REVISED JANUARY 2009 60mA, 5.0V, Buck/Boost Charge Pump in ThinSOT-23 and ThinQFN 2 • Wide Input Range: 1.8V to 5.5V The REG710 is a switched capacitor voltage converter that produces a regulated, low-ripple output • Automatic Step-Up/Step-Down Operation voltage from an unregulated input voltage. A wide • Low Input Current Ripple input supply voltage of 1.8V to 5.5V makes the • Low Output Voltage Ripple REG710 ideal for a variety of battery sources, such • Minimum Number of External as single-cell Li-Ion, or two- and three-cell nickel- or alkaline-based chemistries. Components—No Inductors • 1MHz Internal Oscillator Allows Small The input voltage may vary above and below the Capacitors output voltage and the output remains in regulation. It works equally well for step-up or step-down • Shutdown Mode applications without the need for an inductor, • Thermal and Current Limit Protection providing low EMI dc/dc conversion. The high • Six Output Voltages Available: switching frequency allows the use of small surface-mount capacitors, saving board space and – 5.5V, 5.0V, 3.3V, 3.0V, 2.7V, 2.5V reducing cost. The REG710 is thermally protected • Small Packages: and current limited, protecting the load and the – SOT23-6 regulator during fault conditions. Typical ground pin current (quiescent current) is 65 µA with no load, and – TSOT23-6 (REG71055 and REG71050 Only) less than 1 µA in shutdown mode. – TQFN-6 (2×2×0.8mm; REG71050 Only) • Evaluation Modules Available: – REG710EVM-33, REG710EVM-5 • Smart Card Readers • SIM Card Supplies • Cellular Phones • Portable Communication Devices • Personal Digital Assistants • Notebook and Palm-Top Computers • Modems • Electronic Games REG710 Used in White LED Backlight Application • Handheld Meters • PCMCIA Cards • Card Buses • White LED Drivers • LCD Displays • Battery Backup Supplies 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 All trademarks are the property of their respective owners. PRODUCTION DATA information is current as of publication date. Copyright © 2001–2009, 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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