The CO2 Smart Power family of wide-voltage, high-frequency point-of-load converters now includes a 100-W device targeting USB-PD applications designed to deliver industry-leading efficiency. Operating at a switching speed of 667 kHz, the SZDL3105B fully-integrated dc/dc converter (buck regulator) can supply up to 5 A and 100 W of output power. It accommodates
industry-leading wide input and output ranges that support up to 27 Vdc input and is supplied in a tiny 4×4 mm QFN package.
Tim Wilhelm, Director of Marketing, explained, “Higher switching frequency means a smaller, lower cost, higher performing output filter that has delighted the clients we have sampled. The SZDPL3105B device enables ground-breaking efficiencies in the smallest size and weight designs. Our support tools give customers the flexibility and confidence to quickly increase the performance efficiency. This ultimately increases power density with volumes approaching 12% of that required by low-frequency competitive solutions. The SZDL3105 significantly reduces BOM cost, design cycles and time to market.”
The SZDL3105B has unique features that optimize its performance in USB port power supply
applications. Extremely low operating power dissipation enables the very low no-load power that is an important specification for regulatory certification. Internal and external feedback resistor divider flexibility supports custom design, while a momentary internal feedback path allows for clean and well-controlled start-up operation until external USB port controllers can bias themselves and smoothly take over control of the output voltage.
SZDL3105B Key Features:
• Optimal for USB-PD and fast charging USB ports
• Up to 100 W USB-PD ports
• 667 kHz switching frequency for compact designs
• 3.3 to 21 V output at 5 A (covers USB-PD 3.0 and PPS applications)
• 7 to 27 V Input
• Dual input LDOs (V IN and V OUT ) for product bias optimizes overall efficiency
• Space saving 4×4-mm QFN package
• CO2 Smart Power by Silanna Semiconductor
• USB-PD and fast charging power adapters
• High power density dc/dc power supplies
• High-efficiency power adapters
• Battery chargers for mobile devices
SZDL3105B devices are being sampled to key accounts and will be fully released in the second half of 2021.
Silanna Semiconductor, 4795 Eastgate Mall, Suite #100, San Diego, CA 92121, 858-373-0475, firstname.lastname@example.org, www.powerdensity.com