Path: EDN Asia >> Product Centre >> Communications/Network >> Tiny buck converters deliver 96 per cent efficiency
Communications/Network Share print

Tiny buck converters deliver 96 per cent efficiency

04 Aug 2014

Share this page with your friends

Texas Instruments (TI) has unveiled the next generation of its integrated triple-output synchronous step-down switching regulators with smaller footprint and higher efficiency.

The TPS65261 and TPS65262 DC/DC converters feature small QFN packages and up to 96 per cent efficiency for such applications as digital television, set-top boxes, home gateway and access point networks, wireless routers, point-of-sale machines, and surveillance equipment.

The new family of DC/DC converters joins TI's family of multi-channel synchronous buck converters that include the TPS65250 and the TPS65251 developed for set-top box applications.

TPS65261/2

TPS65261 and TPS65262 feature 4.5V to 18V input supply voltage range for intermediate bus voltages operating off 5V, 9V, 12V or 15V power buses or batteries; constant frequency peak current mode that simplifies design and enables system optimisation; 5mm x 5mm x 0.9mm QFN package that is 44 per cent smaller than previous generation; and a 0.6V feedback reference that supports processors demanding lower output voltage.

The chips also have integrated automatic power up/down sequencing for easy power control. TPS65261 provides 82 per cent light load efficiency at 10mA and offers three outputs of rated current at 3A/2A/2A. It features an adjustable 250kHz to 2MHz switching frequency with pulse skipping. For forced continuous current operation without pulse skipping, TI offers the TPS65261-1.

TPS65262 provides fixed 600kHz switching operation and offers three outputs of rated current at 3A/1A/1A. Two integrated 200mA and 100mA low drop-out voltage linear regulators (LDOs) simplify board layout. For digital multimedia applications requiring higher current, TI offers the TPS65262-1 with integrated 350mA and 150mA LDOs.

Packaged in a 32pin QFN package, the TPS65261 is priced at $1.90 and the TPS65262 is priced at $2.05 in 1,000-unit quantities.




Want to more of this to be delivered to you for FREE?

Subscribe to EDN Asia alerts and receive the latest design ideas and product news in your inbox.

Got to make sure you're not a robot. Please enter the code displayed on the right.

Time to activate your subscription - it's easy!

We have sent an activate request to your registerd e-email. Simply click on the link to activate your subscription.

We're doing this to protect your privacy and ensure you successfully receive your e-mail alerts.


Add New Comment
Visitor (To avoid code verification, simply login or register with us. It is fast and free!)
*Verify code:
Tech Impact

Regional Roundup
SMIC activates 38nm NAND process technology
The 38nm NAND Flash technology targets diversified high volume speciality applications, such as embedded products, mobile computing, TV, and Set-top Box.

Octa-core processor optimises HD tablets
ST launches MEMS lab in Taiwan


News | Products | Design Features | Regional Roundup | Tech Impact