Product category: Power Supply ICs and Controllers
News Release from: Texas Instruments (April 2001-March 2006) | Subject: TPS6103x family
Edited by the Electronicstalk Editorial Team on 17 March 2003
High-efficiency convertors take FETs onboard
A new a family of synchronous boost convertors simplify power supply design with integrated field effect transistors
A new a family of synchronous boost convertors from Texas Instruments simplify power supply design with integrated field effect transistors (FETs). The new convertors save board space, improve power conversion efficiency and can deliver high currents for spinning media players, personal digital assistants (PDAs) and other portable applications powered by a single-cell lithium-ion (Li-ion), lithium-polymer (Li-pol), or dual-cell alkaline or nickel metal-hydride (NiMH) battery pack.
This article was originally published on Electronicstalk on 17 March 2003 at 8.00am (UK)
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TI's TPS6103x family of boost convertors provide up to 96% power conversion efficiency, and is capable of delivering output currents of up to 1A at 5V with input supply voltages as low as 1.8V.
The TPS6103x comes with fixed output voltage options as well as an adjustable option that can be adjusted by an external resistor divider.
Based on a fixed-frequency pulsewidth modulation (PWM) controller, the TPS6103x uses synchronous rectification to achieve maximum efficiency.
In addition, the convertor uses a power-save mode to increase efficiency at light loads, and an ultralow quiescent current of 20uA to conserve battery life.
The TPS6103x also can be disabled to minimise battery drain.
In shutdown mode, the device consumes a mere 0.1uA and completely disconnects the load from the battery in order to avoid battery depletion.
The TPS6103x family of convertors is available today in volume from TI and its authorised distributors.
The devices come in a 16-pin thin shrink small outline (TSSOP) package.
A 4 x 4mm 16-pin QFN option is scheduled to be available by end of second quarter.
Suggested resale pricing in quantities of 1000 is $1.99.
Evaluation modules are available via the TI power website.
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