New Products

Apr 1, 2008 12:00 PM

Low-Noise DC-DC Converter

The EP5368QI 600-mA synchronous buck converter with integrated inductor from Enpirion delivers extremely low output ripple, low radiated noise (EMI) and low conducted noise. The complete solution requires only 2 MLCC capacitors for a solution footprint of 22 sq mm.

The device has a 4-MHz switching frequency and achieves up to 94% efficiency. It provides 600 mA of continuous output current over the industrial temperature range and 700 mA over the commercial temperature range.

Well-suited for a broad range of mobile and wireless broadband applications, the EP5368QI comes in a 3-mm × 3-mm × 1.1-mm QFN package. It is priced starting at $0.98 each in quantities of 10,000.
Enpirion
Bridgewater, N.J.
www.enpirion.com

Plug-In DC-DC Converter

Absopulse Electronics' BAP 236R-EH Series is a rugged plug-in (Eurocard) dc-dc converter designed for railway and other harsh-environments. This 200-W unit delivers dc outputs up to 130 Vdc. It can be operated from supply voltages of 24 Vdc, 36 Vdc, 48 Vdc, 72 Vdc, 96 Vdc or 110 Vdc. A built-in redundancy diode allows for parallel connection to achieve higher output power or N+1 redundancy.

The series is rated for operation over a -25°C to 70°C temperature range without derating, with natural convection cooling. It features full electronic protection on the input and output, an optocoupler alarm output and optional control input. The BAP 236R-EH measures 3U × 14HP × 220 mm and is typically used in 19-in. rack-mount applications. It's priced starting at $285 in quantities of 100.
Absopulse Electronics
Ottawa, Canada
www.absopulse.com

Transformers

The EE5 line of custom low-power switch-mode transformers from Beta Transformer Technology is designed and built to meet the ruggedized requirements of MIL-PRF-27 necessary for high reliability aerospace and military systems. The EE5 measures 0.195-in. high × 0.309-in. wide × 0.240-in. long and can deliver 0.7 W at 100 kHz.
Beta Transformer Technology
Bohemia, N.Y.
www.bttc-beta.com

Stepdown Regulator

Linear Technology's LTC3611 is a high-efficiency synchronous buck regulator that delivers up to 10 A of continuous output current at voltages as low as 0.6 V. It operates from an input voltage of 4.5 V to 32 V (36 V ABS max), making it ideal for applications with multicell Li-ion, lead-acid batteries or fixed-voltage rails up to 32 V. Its valley current control architecture delivers very low duty-cycle operation at high frequencies with excellent transient response. The operating frequency is set by an external resistor. Switching frequencies of up to 1 MHz allow for the use of small, low-cost ceramic capacitors and low-profile inductors.

Available in a 64-lead 9-mm × 9-mm QFN package, the LTC3611EWP is priced starting at $9.75 each in 1000-piece quantities.
Linear Technology
Milpitas, Calif.
www.linear.com

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