Product category: Power Supply ICs and Controllers
News Release from: Linear Technology Corp | Subject: LT3510
Edited by the Electronicstalk Editorial Team on 30 April 2007
Two-channel convertor simplifies power
supplies
Dual current-mode PWM step-down DC/DC convertor incorporates two internal 2.5A power switches packaged in a 20-lead TSSOP-20E package.
Available now from stock at Linear Technology, the LT3510 is a dual current-mode PWM step-down DC/DC convertor with two internal 2.5A power switches packaged in a 20-lead TSSOP-20E package Each channel is capable of delivering up to 2A of continuous output current at efficiencies up to 88%
This article was originally published on Electronicstalk on 28 Jul 2004 at 8.00am (UK)
Related stories
Card power chip meets smart and SIM standards
The LTC4557 is a dual SIM/smart-card power supply and level translator, which provides both 1.8 and 3V SIM power and digital signal level shifting from a 3 x 3mm QFN package.
RF mixers take transformers onboard
Linear Technology has released two new high linearity up-converting RF active mixers with integrated RF transformers.
Independent input voltage, feedback, soft-start and power good pins for each channel simplify complex power supply tracking and sequencing requirements.
The LT3510's wide input range of 3.3 to 25V makes it ideal for regulating power from a wide variety of sources, including 5 and 12V rails, unregulated wall transformers, lead acid batteries and distributed power supplies.
The LT3510's switching frequency is user programmable between 250kHz and 1.5MHz, allowing optimisation between efficiency and external component size.
Both of the LT3510's convertors are synchronised to either an external clock input or an internal oscillator and maintain a 180 degree phase offset between channels to reduce voltage ripple and input capacitor size.
An internal 0.80V reference enables sub-1V output voltages, required to power the latest generation of low voltage DSPs and microcontrollers.
Independent, sequential, ratiometric or absolute tracking is easily attained between the outputs.
Low-dropout internal switches enable duty cycles to reach 95%, and internal cycle-by-cycle current limit provides protection against shorted outputs.
The low current (less than 10uA) shutdown offers extended run-time in battery-powered systems.
The LT3510EFE is available from stock in a thermally enhanced TSSOP-20 package.
There is also an industrial grade temperature version, the LT3510IFE.
Pricing starts at US $3.25 and $3.90 each, respectively, for 1000-piece quantities. Request a free brochure from Linear Technology Corp ...
• Linear Technology Corp: contact details and other news
• Email this article to a colleague
• Register for the free Electronicstalk email newsletter
• Electronicstalk Home Page
Search the Pro-Talk network of sites
