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TI boost converters deliver up to 1A output

Posted: 04 Apr 2003 ?? ?Print Version ?Bookmark and Share

Keywords:texas instruments? tps6103x? boost converter? power conversion ic?

Texas Instruments Inc. has announced the availability of a family of synchronous boost converters that feature integrated FETs and satisfy the high current requirements needed by battery-powered devices.

The TPS6103x family provides up to 96 percent of power conversion efficiency and is capable of delivering output currents of up to 1A at 5V with an input supply voltage of 1.8V. It comes with a fixed output voltage option, as well as an adjustable option that can be fixed by an external resistor divider.

Based on a fixed-frequency, PWM controller, the TPS6103x uses synchronous rectification to achieve maximum efficiency. In addition, the converter uses a power-save mode to increase efficiency at light loads, and an ultra-low quiescent current of 20?A to conserve battery life.

It can also be disabled to minimize battery drain. In shutdown mode, the device consumes a 0.1?A and completely disconnects the load from the battery in order to avoid depletion.

The devices come in TSSOP-16 and 4-by-4mm QFN-16 packages are suitable for use in portable applications powered by a single-cell Li-ion or lithium polymer battery, or dual-cell alkaline or NiMH battery packs.

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